Electrical Wiring and Concealed Plumbing Checklist for New House Construction in Hyderabad

Updated: September 2026

When building a new house in Hyderabad, electrical wiring and concealed plumbing are two stages where small planning mistakes can become expensive problems later.

A missing AC point may require cutting a finished wall.

A poorly positioned kitchen socket can remain inconvenient for years.

An untested concealed water line can leak behind tiles.

A drainage pipe with an incorrect slope can cause repeated blockages.

And once plastering, false ceilings, flooring and bathroom tiles are completed, accessing concealed services becomes much more difficult.

That is why electrical and plumbing planning should happen before plastering—not after the house starts looking finished.

For a new independent house, duplex or villa, homeowners should finalise:

socket locations,
lighting points,
AC points,
geyser points,
appliance circuits,
internet and CCTV routes,
distribution boards,
earthing,
water-supply routes,
hot-water lines,
drainage,
floor traps,
washing-machine connections,
kitchen plumbing,
rainwater lines and
future service requirements

before the walls are closed.

This guide provides a practical electrical wiring and concealed plumbing checklist for new house construction in Hyderabad, including planning, materials, safety checks, room-wise points and inspections that should happen before plastering.

Quick Checklist Before Plastering

Before allowing the plastering team to close the walls, confirm that all of these have been completed.

Item	Check Before Plastering
Electrical layout	Finalised room by room
Switchboard locations	Confirmed
Socket positions	Confirmed
AC points	Installed/provided
Geyser points	Provided
Kitchen appliance points	Finalised
Refrigerator point	Confirmed
Washing-machine point	Confirmed
Water-purifier point	Confirmed
TV/data points	Finalised
CCTV conduits	Provided where required
Internet/LAN conduits	Installed
Doorbell/video door phone	Provision made
Inverter/UPS provision	Planned
EV charging provision	Considered
Solar provision	Considered
Distribution boards	Locations finalised
Earthing	Planned and executed correctly
Water pipes	Installed
Hot-water lines	Installed
Waste pipes	Installed
Drainage slope	Checked
Floor traps	Checked
Pipe pressure testing	Completed
Drain leakage testing	Completed
Service photographs	Taken before covering
Structural members	No unauthorised cutting/chasing

Do not approve plastering merely because the conduits and pipes “look complete.”

Test first. Cover later.

Why Electrical and Plumbing Planning Matters So Much

During the brickwork stage, electrical conduits and plumbing lines are relatively easy to install or modify.

After plastering, every change creates additional work.

After painting or tiling, changes become even more expensive.

A homeowner who forgets a bedside charging socket today may spend years using extension boards.

A bathroom where the geyser inlet and outlet are poorly located may require visible external plumbing.

A kitchen designed before the refrigerator, chimney, oven and dishwasher positions are known can end up with sockets hidden behind appliances.

Proper MEP planning prevents these problems.

MEP commonly refers to:

Mechanical + Electrical + Plumbing services.

For a normal home, the electrical and plumbing portions form a major part of concealed MEP work.

Electrical Wiring Standards for New Homes in India

Residential electrical installations should not be designed simply by telling the electrician:

“Do it like the neighbouring house.”

Electrical work should follow applicable Indian standards, electrical safety requirements and the project design.

Important references currently include:

IS 732:2019 – Code of Practice for Electrical Wiring Installations
IS 3043:2018 – Code of Practice for Earthing
SP 30:2023 – National Electrical Code of India
National Building Code of India – Electrical and Allied Installations

Applicable standards can be revised over time, so the latest applicable requirements should be checked by the electrical designer or contractor.

For homeowners, the important principle is simple:

Use a properly planned system with correct circuit protection, conductor sizing, earthing and installation—not an improvised collection of wires and switches.

First Step: Make an Electrical Furniture Plan

One of the best ways to plan electrical points is to finalise furniture positions first.

Before deciding where sockets should go, mark:

beds,
bedside tables,
TV unit,
sofa,
dining table,
study desk,
wardrobes,
dressing table,
refrigerator,
washing machine,
dishwasher,
microwave,
oven,
chimney,
air conditioners,
geysers and
water purifier.

Why?

Because an electrical point can be technically correct but practically useless.

For example, a socket positioned directly behind a wardrobe may never be accessible.

A switchboard hidden behind an open bedroom door is inconvenient.

A TV point installed before deciding the TV wall can result in visible extension wires later.

Furniture planning and electrical planning should happen together.

Room-by-Room Electrical Point Checklist

1. Living Room Electrical Checklist

A modern living room may require more electrical points than homeowners initially expect.

Consider planning for:

Main lighting
Decorative lighting
Ceiling fan
TV
Set-top box
Streaming device
Soundbar
Wi-Fi router
LAN/data point
Mobile charging
Laptop charging
Floor or table lamps
Air conditioner
CCTV where required
Video door phone
Smart-home controls where planned

TV Wall

Ideally, plan the complete TV wall before electrical work.

Provide suitable locations for:

TV power
Set-top box
Internet/LAN
HDMI or media routing where required
Soundbar
Gaming console
Additional accessories

Avoid having cables hanging visibly from the television to sockets near floor level.

2. Bedroom Electrical Checklist

Each bedroom should be planned based on its furniture layout.

Consider:

Main light
Ceiling fan
AC point
Bedside charging sockets
Bedside light controls
Reading lights
Dressing-table socket
TV point if required
Study/work desk socket
Laptop charging
Router/LAN point if required
Wardrobe lighting provision
Two-way switching where useful

Bedside Sockets

One of the most commonly forgotten items is adequate bedside charging.

Modern households may simultaneously charge:

phones,
smartwatches,
tablets,
laptops,
headphones and
other devices.

Planning enough accessible sockets can significantly reduce dependence on extension boards.

3. Kitchen Electrical Checklist

The kitchen deserves particularly careful electrical planning because it can contain several high-load appliances.

Potential points include:

Refrigerator
Chimney
Water purifier
Mixer/grinder
Microwave
OTG/oven
Induction cooktop
Dishwasher
Coffee machine
Electric kettle
Toaster
Exhaust fan
Under-cabinet lighting
Additional countertop appliances

Do not place all kitchen appliances on one convenient socket circuit without proper load planning.

Higher-load appliances should be considered separately by the electrical designer.

Kitchen Countertop Sockets

Provide enough accessible sockets above the working counter, but keep them properly positioned relative to water sources, sinks and cooking zones.

Do not position electrical outlets carelessly where they are likely to be repeatedly splashed with water.

4. Bathroom Electrical Checklist

Bathrooms combine electricity and water, so safety deserves particular attention.

Possible electrical provisions include:

Geyser
Exhaust fan
Mirror light
Vanity lighting
Shaver/grooming outlet where safely designed
Smart mirror
Water heater controls

Protection, equipment location and suitability for wet areas should be determined by qualified electrical professionals.

Never treat an ordinary bathroom socket arrangement the same as a dry bedroom installation.

5. Utility Area Checklist

The utility area may require:

Washing machine
Dryer
Ironing point
Water heater where applicable
Utility lighting
Exhaust
Water pump controls
Additional service socket

For washing machines, coordinate the electrical socket, water inlet and wastewater outlet together.

Installing one without planning the others can create awkward external pipes later.

6. Balcony and Terrace Electrical Checklist

Consider future use rather than installing only one bulb.

Possible provisions include:

Balcony lighting
Weather-appropriate socket
Terrace lighting
CCTV
Water-pump connections
Solar equipment
Outdoor decorative lighting
Motorised awnings where planned
Terrace utility equipment

Outdoor electrical accessories should be selected and installed appropriately for their exposure.

7. Parking Area Electrical Checklist

Modern homes increasingly need more electrical planning in parking spaces.

Consider:

Parking lights
CCTV
Gate motor
Video doorbell
Security equipment
Outdoor sockets
Water pump equipment
Future EV charger

EV Charging Provision

Even if you do not currently own an electric vehicle, consider whether an EV charger could be required during the life of the house.

Providing an appropriately planned route from the electrical distribution system to the parking area during construction may be much easier than adding it later.

The actual charger circuit and protective equipment should be designed for the selected charger and sanctioned electrical load.

8. Staircase Electrical Planning

Useful provisions include:

Stair lighting
Two-way switching
Wall lights
Night lighting
Motion sensors where planned
Emergency lighting for larger buildings

Being able to control staircase lights from both ends is a simple feature that can significantly improve usability.

9. Home Office or Study

With more people working from home, study-room planning deserves more attention.

Consider:

Laptop sockets
Desktop computer
Monitor
Printer
Phone chargers
UPS
LAN connection
Wi-Fi access point
Task lighting
AC
Video conferencing lighting

A proper LAN/data conduit can provide more reliable connectivity than depending entirely on Wi-Fi.

Do Not Forget Internet and Data Cabling

Electrical work is not only about power cables.

Before plastering, consider conduits for:

Fiber internet
Ethernet/LAN
Wi-Fi access points
CCTV
Video doorbell
Intercom
TV/coaxial cable where required
Smart-home controls

A large G+1, G+2 or G+3 house may have poor Wi-Fi coverage if the router is randomly placed in one corner.

Planning network infrastructure during construction is considerably easier than adding visible cables later.

CCTV Planning Before Plastering

If cameras may be installed later, decide likely camera positions now.

Typical locations include:

Main entrance
Gate
Parking
Side passages
Staircase
Terrace access
Rear setback

Provide suitable cable routes back to the planned recording/network location.

This avoids exterior cables being tied across finished walls later.

Inverter and UPS Planning

If an inverter or backup system is planned, determine in advance:

which lights will receive backup,
which fans will receive backup,
which sockets require backup,
inverter location,
battery location,
ventilation,
cable routes and
changeover arrangement.

Trying to decide these items after the electrical panels are complete can complicate the system unnecessarily.

Solar Power Provision

A homeowner may not install rooftop solar immediately.

However, during construction it may be sensible to reserve suitable routes between:

terrace → inverter/electrical equipment location → distribution system

if solar installation is realistically expected later.

Future planning costs little when conduits are still exposed.

Electrical Distribution Board Planning

The distribution board, or DB, is a critical part of the house electrical installation.

It should not be hidden somewhere simply because the homeowner does not want to see it.

The DB should remain accessible for:

operation,
inspection,
maintenance,
fault isolation and
future additions.

Depending on the building, separate distribution arrangements may be useful for different floors or zones.

Circuit grouping should be planned by the electrical designer based on the installation.

MCB, RCCB/RCBO and Electrical Protection

Modern residential electrical installations require more than a main switch.

Circuit protection should be selected based on the design and may include devices such as:

MCBs,
residual-current protection,
RCBOs where designed,
surge protection where required and
appropriate isolation devices.

The exact ratings should not be selected from a generic internet chart.

They depend on:

conductor size,
load,
circuit arrangement,
fault protection requirements and
installation conditions.

Have them selected by a competent electrical professional.

Earthing Is Not Optional

Good earthing is fundamental to electrical safety.

Earthing provides a controlled path for fault current and supports the operation of protective devices.

Residential electrical installations should therefore include properly designed:

earthing electrodes/system,
protective conductors,
bonding where required and
testing.

Do not accept an installation simply because the electrician says:

“Earth is connected.”

Ask whether the earthing system has actually been tested.

Separate Heavy-Load Appliances

Not every appliance should be treated like a mobile-phone charger.

Higher-load equipment may include:

air conditioners,
geysers,
induction cooktops,
ovens,
large pumps,
EV chargers and
other equipment.

Circuit design should consider individual appliance loads.

A qualified electrical designer/electrician should determine conductor sizes, protective devices and circuit arrangements.

Do Not Choose Wire Size Only From Rules of Thumb

Homeowners often hear statements such as:

“Use this size for lights and that size for sockets.”

Those figures may sometimes be used in typical installations, but conductor sizing should ultimately be based on the actual circuit.

Important factors include:

connected load,
design current,
conductor material,
installation method,
voltage drop,
circuit length,
grouping,
temperature,
protective device and
fault conditions.

Therefore, specifications should be documented rather than left entirely to verbal site practice.

Use Quality Electrical Wires and Cables

Use products that meet applicable BIS requirements and project specifications.

When purchasing cable, verify:

manufacturer,
conductor material,
conductor size,
applicable standard/marking,
coil authenticity and
invoice.

Avoid unbranded cables merely because the price is lower.

Electrical cables remain hidden inside walls for years.

Saving a small amount at the wiring stage can be a poor trade-off.

Electrical Conduit Checklist

Before plastering, inspect the conduit installation.

Check that:

conduits are securely fixed,
excessive sharp bends are avoided,
junction locations remain accessible where required,
conduits are not crushed,
pulling paths are practical,
electrical boxes are firmly positioned,
switch boxes are level,
conduit ends are protected from cement/debris,
future cables can be pulled where intended.

Empty spare conduits can also be useful for future data, solar or automation additions.

Never Cut Structural Members Without Approval

This is one of the most important rules in the entire article.

Electrical and plumbing routes must be coordinated with the structure.

Do not casually cut, drill or chase RCC columns, beams or structural slabs to accommodate pipes and electrical conduits.

If a service needs to pass through or near a structural element, it should be coordinated with the structural engineer and relevant drawings.

A site worker should never decide independently to cut reinforcement because:

“The pipe has to pass here.”

MEP convenience should not compromise structural safety.

Electrical and Plumbing Lines Should Be Coordinated

Electrical and plumbing teams often work at similar construction stages.

Their routes should be coordinated rather than installed independently.

Avoid unnecessary situations where:

water pipes interfere with switch boxes,
electrical conduits run through plumbing chases,
drainage pipes block electrical routes,
AC drains conflict with electrical points,
pipes pass through structural members.

Where services must cross, the routing should be deliberately planned and professionally executed.

Concealed Plumbing: What Does It Mean?

Concealed plumbing means the water-supply or drainage pipes are installed inside wall chases, ducts, floors or other building elements so they are not normally visible after finishing.

The advantage is a cleaner appearance.

The disadvantage is that leaks can be harder to access.

That is why concealed plumbing quality depends heavily on:

correct material + good workmanship + minimum unnecessary joints + testing before closure + accurate documentation.

Common Plumbing Pipe Materials

Different pipes serve different purposes.

A homeowner should not simply ask:

“Which pipe brand is best?”

First ask:

“Which pipe system is appropriate for this service?”

Common systems can include:

CPVC

CPVC piping is widely used for hot and cold potable-water distribution.

Applicable CPVC products for hot and cold water distribution are covered by IS 15778.

UPVC

UPVC systems are used in various water-supply and drainage applications depending on the specific product standard.

For example, IS 4985:2021 covers UPVC pipes for potable water supplies.

Separate UPVC products and standards apply to soil, waste, drainage and rainwater applications.

PPR

PPR piping systems are another option used for hot and cold water installations when the specified system is appropriate for the application.

The important rule is:

Do not choose pipe only by colour or brand name. Choose the correct product class and application.

Concealed Plumbing Checklist Before Wall Closing

Verify:

Correct pipe type
Correct pipe diameter
Hot/cold lines identified
Joints properly completed
Pipes adequately supported
Pipe routing documented
Water pressure testing completed
No visible leaks
Drainage lines tested
Drain slopes checked
Floor traps positioned correctly
WC outlet position verified
Basin locations verified
Shower mixer location verified
Geyser connections verified
Washing-machine inlet/outlet verified
Kitchen sink connection verified
RO/water purifier connection planned
External taps provided
Terrace water points provided where required

Hot and Cold Water Planning

Do not assume every bathroom needs only two pipes.

Decide early whether hot water will serve:

shower,
wash basin,
kitchen sink,
utility area or
other fixtures.

Also decide the hot-water source:

individual geysers,
solar hot-water system,
heat pump,
central system or
another arrangement.

The plumbing route can change substantially depending on this decision.

Geyser Planning

Before finishing bathroom walls, confirm:

geyser position,
electrical point,
water inlet,
hot-water outlet,
isolation valves,
drainage/safety requirements and
structural support where relevant.

The plumbing team and electrical team should coordinate this together.

Kitchen Plumbing Checklist

Before plastering or cabinetry work, verify:

Sink position
Cold-water supply
Hot-water supply if planned
Sink waste pipe
Water purifier inlet
RO reject-water drain where applicable
Dishwasher inlet
Dishwasher drainage
Washing machine if located in kitchen/utility
Floor drain where designed
Refrigerator water connection if required

Kitchen plumbing should be planned along with the modular-kitchen drawing.

Bathroom Plumbing Checklist

Every bathroom should be reviewed individually.

Confirm positions for:

WC
Wash basin
Shower
Mixer
Health faucet
Geyser
Floor trap
Additional drain
Bathtub if any
Shower niche where planned
Washing machine where applicable
Hot and cold supply
Ventilation/exhaust

The bathroom should also have the correct floor slope toward drainage points.

Floor Trap Position Matters

A badly positioned floor trap can create permanent inconvenience.

The tile slope should naturally move water toward the drain.

Avoid arrangements where water consistently collects:

behind the WC,
beside the shower,
near the bathroom door or
in corners.

The plumbing layout and tile-level planning should therefore be coordinated.

Drainage Pipe Slope

Wastewater does not move properly simply because a pipe is large.

Drainage lines need appropriate gradients based on their function, pipe size and design.

A pipe that is too flat can encourage sediment accumulation.

An excessively steep or poorly configured route can also create problems.

Drainage slopes should therefore be established according to the plumbing design and applicable standards—not guessed on site.

Avoid Unnecessary Concealed Joints

Every additional joint creates another potential failure location.

This does not mean all concealed joints are automatically wrong.

Properly designed piping systems depend on approved jointing methods.

But plumbing should be routed efficiently without adding unnecessary connectors and joints merely to compensate for poor planning.

Where possible, keep important valves and serviceable components accessible.

Use Isolation Valves

A good plumbing design allows sections of the house to be isolated without shutting off the entire property's water supply.

Depending on the system, consider isolation for:

individual floors,
bathrooms,
kitchen,
geysers,
external water systems and
major equipment.

Accessible valves can make future maintenance much easier.

Municipal Water and Borewell Water Planning

Many Hyderabad homes rely on more than one water source.

Possible sources can include:

municipal supply,
borewell,
tanker supply,
underground sump and
overhead tank.

The system should be deliberately planned so water sources, tanks and pumping arrangements work correctly.

Where separate water lines are part of the design, they should be clearly identified.

Avoid undocumented pipe connections that later make it impossible to know which source feeds which fixture.

Underground Sump and Overhead Tank

Plan:

incoming water lines,
overflow,
pump suction,
delivery line,
float control if used,
cleaning access,
tank overflow disposal and
pump electrical connections.

Overflow should discharge safely rather than causing dampness near foundations or walls.

Plumbing Vent Pipes

Drainage systems also require proper venting.

A vented system helps pressure balance and supports proper drainage operation.

Badly designed or terminated vent arrangements can contribute to:

foul smells,
trap problems and
drainage performance issues.

Vent stacks should therefore be included in the plumbing plan rather than treated as an afterthought.

AC Drainage Should Be Planned Before Plastering

Air conditioners produce condensate water.

If AC drainage is not planned before finishing, installers may later run visible pipes across exterior walls.

Before plastering, decide:

indoor AC unit position,
outdoor-unit position,
refrigerant route,
electrical supply and
condensate drain.

The condensate line should discharge to an appropriate location without creating dampness or staining the façade.

Pressure-Test Concealed Water Pipes

This is one of the most important quality checks.

Do not conceal or permanently close water-supply lines without testing them.

The installed system should be pressure tested according to the piping-system requirements and project specification.

During testing, check:

joints,
elbows,
tees,
valves,
wall penetrations and
other connections

for leakage or pressure loss.

If a leak appears now, the wall can still be repaired relatively easily.

If the same leak appears after tiles and paint are finished, repair becomes much more disruptive.

Test Drainage Before Closing It

Water-supply lines are not the only pipes that require checking.

Drainage and waste systems should also be inspected and tested appropriately before they become inaccessible.

Check for:

leakage,
poor joints,
obstruction,
incorrect flow,
incorrect slope and
improperly positioned traps.

Photograph Every Wall Before Plastering

This is one of the easiest and most valuable construction habits.

Before electrical conduits and plumbing pipes disappear behind plaster, photograph every wall.

Take:

full-wall photographs,
close-up photographs,
measurements from floor level,
measurements from corners and
photographs of major pipe/conduit intersections.

For important areas, place a measuring tape or marked reference in the photograph.

Store the images by room:

Ground Floor → Kitchen → Sink Wall

First Floor → Master Bathroom → Shower Wall

Bedroom 2 → TV Wall

Several years later, when you want to drill a hole for a shelf, cabinet or television mount, these photographs can help you understand where pipes and conduits are located.

Prepare As-Built Drawings

For a better-documented house, maintain as-built service drawings.

These show the actual installed positions of:

pipes,
conduits,
distribution boards,
valves,
drainage routes,
electrical panels and
other concealed systems.

Plans sometimes change during construction.

Therefore, the original drawing alone may not show what was actually installed.

As-built records are extremely useful for future renovation and maintenance.

Electrical Inspection Before Plastering

Use this homeowner checklist.

Conduits

✓ Correct routes installed
✓ Conduits securely fixed
✓ No obvious crushing
✓ Pulling path maintained
✓ Boxes positioned correctly

Switchboards

✓ Correct wall
✓ Correct height
✓ Not hidden behind doors
✓ Not hidden by wardrobes
✓ Locations match furniture plan

Appliance Points

✓ AC
✓ Geyser
✓ Refrigerator
✓ Washing machine
✓ Microwave/oven
✓ Chimney
✓ Water purifier
✓ Dishwasher if applicable
✓ Pump
✓ EV provision if planned

Low-Voltage Systems

✓ TV
✓ Internet
✓ LAN
✓ CCTV
✓ Doorbell
✓ Video intercom
✓ Smart-home wiring where planned

Safety

✓ Earthing planned
✓ Distribution board accessible
✓ Circuit schedule documented
✓ No unauthorised structural cutting

Plumbing Inspection Before Plastering

Water Supply

✓ Main supply route checked
✓ Hot-water lines checked
✓ Cold-water lines checked
✓ Isolation valves accessible
✓ Geyser connections ready
✓ Pressure test completed

Bathrooms

✓ WC outlet
✓ Basin inlet/outlet
✓ Shower mixer
✓ Floor trap
✓ Geyser
✓ Drainage
✓ Correct heights

Kitchen

✓ Sink inlet
✓ Sink outlet
✓ RO point
✓ Dishwasher where planned
✓ Utility connections

Drainage

✓ Proper routing
✓ Suitable slope
✓ No leakage
✓ Vent pipes provided
✓ Inspection access where required

Documentation

✓ Photographs taken
✓ Pipe routes recorded
✓ Changes updated in drawings

Common Electrical Wiring Mistakes

1. Too Few Sockets

This leads to extension boards throughout the house.

2. Sockets Hidden Behind Furniture

Furniture planning was probably not coordinated with electrical planning.

3. No Dedicated Planning for High Loads

Air conditioners, geysers and cooking appliances require proper load consideration.

4. Forgetting Internet Cabling

Homeowners depend completely on Wi-Fi and later discover weak coverage.

5. Forgetting CCTV Conduits

Visible exterior wires are added after painting.

6. No EV Provision

The parking electrical route later becomes difficult to upgrade.

7. No Solar Provision

Terrace-to-electrical-room cabling becomes unnecessarily visible.

8. Poor Earthing

This can create a serious safety problem.

9. Cutting Beams or Columns

Structural members should never be altered casually to route services.

10. No Documentation

Years later nobody knows where the concealed wires actually run.

Common Concealed Plumbing Mistakes

1. Not Pressure Testing

A tiny hidden leak may appear only after the house is occupied.

2. Poor Drainage Slope

This can contribute to slow flow and repeated blockage.

3. Too Many Concealed Joints

Unnecessary joints increase possible failure locations.

4. Wrong Fixture Positions

Plumbing was completed before the bathroom layout was finalised.

5. Missing Isolation Valves

A small repair requires shutting water to the whole house.

6. No AC Drain Provision

Visible drain pipes later spoil the exterior elevation.

7. No RO Waste Connection

Kitchen modifications become necessary after cabinets are installed.

8. Poor Coordination With Waterproofing

Pipe penetrations through bathrooms and terraces can become leakage points.

9. No Service Photographs

Future drilling becomes risky.

10. Closing Walls Before Testing

One of the most expensive avoidable mistakes.

Electrical + Plumbing + Waterproofing Must Work Together

These trades should not operate independently.

Consider a shower mixer.

The plumbing team installs pipes through the wall.

The waterproofing team must properly treat relevant penetrations.

The tile team must maintain the final position.

The electrical team must ensure nearby electrical installations remain safely planned for the wet area.

A failure in coordination can create a problem even when each individual material is good.

When Should Concealed Electrical and Plumbing Work Happen?

A simplified sequence for a new masonry house is:

Structural frame → Brick/AAC block walls → Electrical and plumbing marking → Wall chasing → Conduits and pipe installation → Electrical/plumbing inspection → Pipe pressure testing → Drainage testing → Photographic documentation → Chase closing/plastering → Waterproofing in wet areas → Tiling and finishing → Final wiring/fixtures → Testing and commissioning

Actual sequencing can vary by project.

The key principle is:

concealed systems must be checked before they become concealed.

What Should Be Checked After Plastering?

After plastering, confirm that:

electrical boxes remain accessible,
boxes are not filled with plaster,
pipes have not been damaged,
fixture outlets remain at correct positions,
drain openings are protected,
AC drain points remain accessible and
conduit openings remain usable.

Construction teams sometimes complete concealed work correctly and then damage it during another trade's work.

Quality control should therefore continue.

What Should Be Checked Before Handover?

Before accepting the completed house, perform a final MEP inspection.

Electrical

Check:

every switch,
every socket,
lighting,
fans,
AC points,
geyser points,
distribution boards,
circuit labels,
residual-current protection,
earthing test results where applicable,
pumps,
external lighting and
backup systems.

Plumbing

Check:

water pressure,
taps,
showers,
WCs,
basins,
floor drains,
hot water,
kitchen sink,
utility points,
washing-machine connections,
pump operation,
overhead-tank filling,
overflow and
visible leakage.

Flush drainage systems and ensure water drains without abnormal backup.

Should You Buy Electrical and Plumbing Materials Yourself?

Homeowners using a labour-only contractor may purchase materials directly.

This provides procurement control but requires more involvement.

Under a turnkey construction contract, the contractor normally procures specified materials within the agreed scope.

In either case, ask for:

brand,
product type,
applicable specification,
quantity,
invoice and
written substitutions where required.

Do not accept unexplained material changes simply because:

“This brand is also good.”

If specifications were agreed in writing, changes should also be documented.

Don't Select Materials Only by Brand

A respected manufacturer may sell several different product grades.

Therefore:

Brand name alone does not define specification.

For electrical wiring, verify the correct cable specification and conductor size.

For plumbing, verify the correct pipe material, class and intended use.

For switches, check the selected range and ratings.

For drainage, ensure the piping system is intended for drainage rather than simply choosing the same pipe used for water supply.

Raja Theertha Constructions & Contractors: Concealed MEP Planning

For homeowners planning a new independent house, duplex or villa in Hyderabad, concealed electrical and plumbing work is best coordinated as part of the overall construction sequence rather than handed separately to different trades without drawings.

Raja Theertha Constructions & Contractors currently lists concealed electrical and plumbing pipe laying before interior plastering as a defined stage in its end-to-end home-construction process.

Its published sequence includes:

brickwork → concealed electrical/plumbing pipe laying → plastering → waterproofing → flooring and finishing.

The company also currently highlights separate municipal-water and borewell-water pipelines as part of its residential planning approach where applicable.

Its presently published turnkey planning rates are:

Raja Theertha Package	Published Planning Rate
Essential Build	₹1,975/SFT
Executive Comfort	₹2,165/SFT
Signature Luxury	₹2,360–₹3,800/SFT

These figures are Raja Theertha's published planning references and are not standalone electrical or plumbing quotations.

Final electrical specifications, plumbing materials, number of points, fixture allowances, inclusions, exclusions and other project requirements should be confirmed through the drawings, specification schedule, site review and final signed construction agreement.

Homeowners can review the current construction packages at Raja Theertha Constructions & Contractors.

Questions to Ask Your Electrical Contractor

Before work begins, ask:

Is there a complete electrical drawing?
Has every room been reviewed with the furniture plan?
How are lighting and socket circuits divided?
Which wire manufacturer and specification will be used?
What conductor sizes are specified for each circuit?
How are AC and geyser loads handled?
Where are the distribution boards?
What protective devices are included?
What earthing system is proposed?
Will earthing be tested?
Are inverter circuits planned?
Is solar provision required?
Is EV provision required?
Are LAN/CCTV conduits included?
Will all circuits be labelled?
Will testing results be recorded before handover?

Questions to Ask Your Plumbing Contractor

Ask:

Which pipe material is used for cold water?
Which material is used for hot water?
Which pipes are used for soil and waste?
What pipe diameters are specified?
Where are isolation valves located?
How are municipal and borewell supplies managed?
Where are plumbing shafts located?
How will drainage pipes be vented?
How are floor slopes coordinated?
How will concealed water lines be tested?
At what pressure and according to which system requirement?
How will drainage lines be tested?
Are pipe routes photographed before plastering?
Are as-built drawings provided?
What happens if leakage appears during testing?

A Practical Pre-Plastering Site Walk

Before plastering begins, walk through the building room by room with:

electrical drawing,
plumbing drawing,
furniture layout,
kitchen drawing,
bathroom drawings and
your phone camera.

Stand in every room and imagine using it.

Ask:

Where will I charge my phone?

Where will the bed be?

Can I reach the light switch when entering?

Where is the AC?

Where will the TV go?

Where will the Wi-Fi router sit?

Where will the washing machine discharge?

Can the geyser be serviced?

Where will the kitchen appliances plug in?

Do I want CCTV here?

Could I need an EV charger later?

Twenty minutes spent asking these questions while the walls are open can prevent years of inconvenience.

Frequently Asked Questions

When should electrical wiring be planned in a new house?

Electrical point locations should ideally be planned during the architectural/interior-layout stage and finalised before wall chasing and plastering.

Should electrical conduits be installed before plastering?

Yes.

Concealed conduit routes and boxes are normally installed and inspected before plaster closes the masonry.

What electrical points should I plan for a new home?

At minimum, plan lighting, fans, regular sockets and appliance points.

Also consider ACs, geysers, kitchen appliances, internet/LAN, CCTV, inverter, solar, gate motor, video door phone and future EV charging.

How many electrical sockets should a bedroom have?

There is no universal correct number.

Socket quantity should follow the room layout and expected usage.

A bedroom containing two bedside tables, a television and a work desk will require a different arrangement from a simple guest bedroom.

Should AC have a separate electrical provision?

Air conditioners are significant electrical loads and should be accounted for specifically in the circuit design.

The electrical professional should determine the correct wiring and protection.

Which wire size should I use for my house?

There is no single wire size for the entire house.

Different circuits have different loads.

Conductor size should be selected based on design current, circuit length, installation conditions, protective devices and applicable requirements.

Is earthing necessary for a new house?

Yes.

Proper earthing and protective measures are fundamental parts of electrical safety.

Should I provide an EV charging point during construction?

If an EV is reasonably likely during the life of the house, reserving an appropriate route during construction can make future installation easier.

The actual EV charging circuit must be designed for the charger and available electrical supply.

Should I install LAN cables if I already have Wi-Fi?

For larger or multi-floor houses, wired networking can provide reliable connections for televisions, access points, computers and CCTV systems.

Providing conduits during construction also preserves future options.

Which pipe is best for concealed plumbing?

There is no single pipe material that is best for every service.

Hot and cold water, potable-water supply, wastewater, soil waste and rainwater can require different piping systems.

Use products suitable for the intended application and complying with applicable standards.

Is CPVC suitable for hot water?

CPVC piping systems designed to the applicable specification are commonly used for potable hot and cold water distribution. IS 15778 covers CPVC pipes for potable hot and cold water distribution supplies.

Can plumbing be covered without pressure testing?

It should not be.

Concealed water lines should be tested according to the specified piping system and project requirements before they become inaccessible.

Should plumbing pipes be photographed before plastering?

Yes.

Photographs and as-built records can be extremely useful when drilling walls or carrying out repairs years later.

Can electrical conduits pass through columns and beams?

Services should not be routed by arbitrarily cutting or chasing structural RCC elements.

Any penetration or route affecting structural components should be coordinated with and approved by the appropriate structural professional.

Should electrical and plumbing lines share the same wall chase?

Their routing should be professionally coordinated and unnecessary close interaction should be avoided, particularly where water leakage could affect electrical installations.

The actual arrangement should follow the project's electrical and plumbing design.

When should bathroom plumbing be tested?

Water-supply and drainage systems should be tested before final covering, while wet-area waterproofing should also be tested at the appropriate stage before tiles conceal the system.

What is the biggest mistake homeowners make with concealed MEP work?

One of the biggest mistakes is allowing plastering or tiling to begin before electrical and plumbing layouts have been checked and the concealed systems tested.

Once finishes are installed, correcting even a small mistake becomes much more difficult.

Final Thoughts

Electrical wiring and concealed plumbing may disappear behind your walls, but they influence how comfortably and safely your home works every single day.

For a new house in Hyderabad, the best approach is:

Plan → mark → coordinate → install → inspect → test → photograph → cover.

Do not rush from brickwork directly into plastering.

Before the walls close, verify:

every socket

every switch

every AC point

every geyser

every appliance

every internet route

every water pipe

every drainage line

every floor trap

every future provision

and most importantly:

every safety-critical detail.

A beautiful wall can be repainted.

A tile can be replaced.

But repairing a badly planned pipe or electrical route hidden inside a completed wall can mean breaking finishes that were only recently installed.

For concealed electrical and plumbing work, what you inspect before plastering is often more important than what you see after painting.