House construction quality checklist in India, by stage (2026)

Design IRL Editorial · Figures checked 7 November 2026 · For owners who will visit and supervise their own site · How we make our guides

When building a house in India, check the work at five stages before it is covered: below ground, steel and concrete, walls and concealed services, waterproofing and tiling, and finishes. Steel should be checked before every pour, and OPC concrete wet-cured for at least 7 days. Most faults are hidden within weeks.

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Why stage checks matter

You don't need to be an engineer. You need to be present at the right moments and ask the right questions. Owners who build without being involved are the ones most often let down.

Keep a simple site diary. Note the date, the stage, what you checked and who was there. Add photos. This record helps with bank releases, contractor payments and any dispute later.

Get help where it counts

Your structural engineer or an independent site engineer should check steel before every concrete pour. If you can't be there, pay for someone who can.

Before and below ground

Soil test done before structural design. A lab test with two to four boreholes costs roughly ₹5,000–40,000, depending on city and depth.
Foundation designed for this site, not copied from another. A high water table or loose soil changes the design.
Marking checked against the approved plan and setbacks before digging.
Footing sizes and depths match the structural drawings.
Anti-termite treatment and damp-proof course done at plinth level.

Steel, concrete and curing

Bar sizes, spacing and laps match the drawings. Count them.
Cover blocks are in place so steel doesn't touch the formwork.
Formwork is firm, level and doesn't leak.
Concrete is placed and compacted without long breaks.
Curing starts promptly and continues for the full period.

Item	Typical minimum time
Column and beam side shuttering removed	16–24 hours
Slab soffit shuttering removed (props left in)	3 days
Props removed, spans up to 4.5 m	7 days
Props removed, longer spans	14 days
Wet curing, OPC cement	At least 7 days
Wet curing, PPC cement	10–14 days

Based on IS 456 stripping times. Your engineer may set longer times.

A slab cycle, from shuttering to the next floor, usually takes 21–28 days. A contractor who wants to go much faster is cutting curing time.

Walls, plaster and what goes inside them

Brick or block walls are in line and plumb, with joints filled.
Lintels are over every opening.
All electrical conduits, boxes and concealed pipes are in before plaster. Check them against the drawings.
Pressure-test plumbing lines before they are covered.
Take dated photos of every wall with services before plaster goes on.

Finish concealed work first

Anything hidden in walls or floors should be complete and tested before plaster and tiles. Breaking finished surfaces later is the costliest kind of rework.

Waterproofing and tiling

Waterproof bathrooms, sunken areas, the terrace and the sump before tiling.
Do a ponding test: block the drain, fill the area with water, and leave it for the time your contractor or product specifies. Check the ceiling below for damp.
Tile floors to the correct slope towards drains.
Tap tiles to listen for hollow spots. Check joints are even.
Allow 5–10% extra tiles for wastage, more for diagonal layouts.

Painting, fittings and the snag list

Walls are dry and sound before putty and primer.
Paint goes on in the agreed coats, from sealed tins of the agreed product.
Every switch, socket, tap and flush works.
Doors and windows open, close and lock smoothly.
Walk every room with a written snag list, and agree a date to fix each item.

Before you accept the house, check that the completion and occupancy certificates are in hand. Without them, water, power and sewer connections may be refused.

Keep back a retention of about 5–10% of the contract until the defects period ends, commonly 6–12 months. Snags that appear in the first monsoon are the ones that matter most.

Budget for fixing things

Even careful sites need some rework. Keep a 10–15% contingency, and get 2–3 quotes for any major repair.

Common questions

What should I check on site when building a house?

Check the work at five stages before it is covered: below ground, steel and concrete, walls and concealed services, waterproofing and tiling, and finishes. Steel should be checked by your structural engineer or an independent site engineer before every concrete pour.

How many days should concrete be cured?

Concrete made with OPC cement should be wet-cured for at least 7 days, and with PPC cement for 10–14 days. A slab cycle from shuttering to the next floor usually takes 21–28 days, and a contractor who wants to go much faster is cutting curing time.

When can shuttering be removed from a slab?

Based on IS 456 stripping times, column and beam side shuttering can come off after 16–24 hours and slab soffit shuttering after 3 days with props left in. Props can be removed after 7 days for spans up to 4.5 m and 14 days for longer spans. Your engineer may set longer times.

How do I test waterproofing before tiling?

Do a ponding test: block the drain, fill the area with water, leave it for the time your contractor or product specifies, and check the ceiling below for damp. Bathrooms, sunken areas, the terrace and the sump should all be waterproofed before tiling.

What should be done before plastering walls?

All electrical conduits, boxes and concealed pipes should be in and checked against the drawings before plaster, and plumbing lines pressure-tested before they are covered. Take dated photos of every wall with services, since breaking finished surfaces later is the costliest kind of rework.

How much retention should I hold back from the contractor?