Planning a Bathroom Renovation in Delhi: Get the Order Right

1. Decide these before a single tile comes off

Each of these determines where a pipe or a drain goes, so each must be settled before demolition, not during it.

• The exact position of the WC, basin, shower and floor trap. Moving any of them means new plumbing points — our new plumbing point guide covers what that involves.
• Wall-hung or floor-mounted WC, counter-top or wall-hung basin. These need different wall support and different waste positions, decided before anything is built.
• Concealed or exposed fittings. The single biggest decision, and irreversible after tiling. Our guide to choosing bathroom fittings covers the trade-off in a Delhi flat.
• Where the geyser goes, and its size. It needs a wall that can carry a full tank, and a power point positioned safely away from the shower area. Decide before wiring is closed up.
• Whether a washing machine point is going in. Adding water and a proper trapped drain for it later is far more disruptive than including it now.
• Whether the shower area will be dry-separated, by a glass partition, a curtain or a step. This changes the floor slope and where the drain sits.
• Buy the actual fittings, or fix the exact models, before roughing in. Pipe centres and concealed body depths depend on the specific product. A plumber roughing in without them is guessing.

2. Waterproofing first, and do not let anyone rush it

This is the part you will never see again and the part that decides whether the flat below gets a stained ceiling in three years. In a Delhi high-rise it is the most consequential thing in the room.

• It happens after plumbing and before tiling. There is no way to add it later without stripping the floor back out.
• It must go up the walls, not just across the floor. A skirting height of coating on every wall, and higher in the shower area, because water travels up as well as sideways.
• Corners, the floor-to-wall junction and every pipe penetration are where leaks start. Those junctions need proper detailing, not a brush-over.
• Insist on a ponding test before tiling. The drain is blocked, the floor is flooded to a depth for a full day or two, and the flat below is checked. This test is what proves the work, and skipping it is the commonest corner cut in Delhi bathroom jobs.
• Concealed pipework needs its own pressure test before it is covered, held long enough to prove the joints hold.
• Get the floor slope right at the same time. The whole floor must fall towards the drain with no flat spots or reverse falls, or you will have standing water forever. Check it with a bucket of water before tiles go down.

Our bathroom waterproofing guide covers what a proper job includes and what drives its cost.

3. The order the work actually goes in

Knowing the sequence lets you check progress and spot a contractor skipping a step.

• Demolition and removal. Old fittings out, tiles off, debris cleared. Protect the drain during this — tile chips and cement washed into a waste line cause blockages that are found much later.
• Plumbing and electrical roughing-in. New pipe runs, drain positions, geyser point, light and exhaust wiring. Photograph every wall now, with a tape measure in the frame, before anything is covered.
• Pressure test the plumbing. Watch it, or ask for a photograph of the gauge holding.
• Waterproofing, then the ponding test. Then, and only then, the screed that sets the floor slope.
• Tiling, floor and walls, then grouting after the adhesive has cured.
• False ceiling, exhaust fan and lighting. Leave an access panel wherever a concealed cistern or a valve needs reaching later.
• Fittings, sanitaryware and accessories last, then a full test of every fitting under real use before the workers leave.

4. Sort the society, the timing and the water out first

The practical constraints in a Delhi flat catch people out more often than the technical ones.

• Get written permission from the RWA before you start. Most societies require it, and many have rules on working hours, lift use, worker entry passes and where debris may be stored.
• Confirm what you may not touch. Shared soil stacks and main risers pass through your bathroom but belong to the building. Cutting into one is a serious matter, and any change affecting them needs the society’s involvement first.
• Tell the flat below and the flat above before work begins. They will hear it, and if anything does go wrong the conversation is far easier when you spoke to them first. Ask the flat below to tell you immediately if any mark appears on their ceiling during the job.
• Plan around the water supply. Delhi supply runs for limited hours, and a bathroom job needs water for mixing, curing and testing. Arrange storage in advance so work does not stall.
• Avoid peak monsoon if you can. Waterproofing and adhesives need dry conditions and proper curing time, and high humidity slows everything.
• Agree debris removal in writing. Bathroom demolition produces a surprising volume of rubble, and who carts it away is a common late dispute.
• Keep a working bathroom. If it is your only one, plan where the household will actually wash before day one.

Our bathroom renovation guide covers what drives the overall cost of a job like this.