Renovation defect checks and handover: what to inspect and when

What a renovation defect check is, and why one inspection is not enough

A renovation defect check in Singapore is a documented comparison of the built work against the contract, the drawings and normal workmanship standards, carried out at the points where a fault can still be corrected cheaply. Doing it only at handover guarantees that the expensive faults — waterproofing, falls to floor traps, concealed conduits, screed levels — are already sealed under tile, ceiling board and carpentry.

Three inspections cover the whole job. The first happens before wet works are closed up, the second after painting and before carpentry is fixed in place, and the third at handover with a written list. Each is looking for a different kind of failure, and none of them substitutes for the others.

Who owns which defect: HDB, the developer, or your renovation contractor

For a new HDB flat, HDB operates a 1-year Defects Liability Period, within which a rectification request can be submitted online or at the Building Service Centre located in the precinct; after the 1-year DLP the owner engages a repair contractor (HDB, Rectification of Defects in New Flats). A cracked original tile, a door hung out of plumb by the builder and a leaking original tap belong on that list, not on the renovation contractor's.

For a new private property in Singapore, the equivalent liability is not HDB's and is not published as a public rule: it sits in the sale and purchase agreement signed with the developer, which sets how long the defects liability period runs, the date it starts running, and the form and timing of the notice a purchaser must give. Read those clauses before the handover inspection and diarise the end date, because developer defect claims are usually written to be strict about notice.

Your renovation contractor owns the third list: workmanship and materials in the work they supplied. CaseTrust-accredited renovation businesses must provide a workmanship warranty of 12 months from the completion date of the works, and must carry out the necessary rectification works if defects arise from the works during that warranty period (CASE). Noble Interior Design Pte. Ltd. is listed in HDB's Directory of Renovation Contractors (DRC Ref: HB-12-5230A, UEN 201722629H) and is CaseTrust-accredited.

Some defects belong to nobody on those three lists. HDB's Home Care Guide treats a ceiling leak inside flats as a shared responsibility between the flat owners involved, who are encouraged to engage a contractor together, and directs leaks from common property to the Town Council (HDB Home Care Guide). Knowing that before you accuse a renovation contractor of causing a stain on the ceiling saves a great deal of friction.

Inspection one: before anything is sealed up

The first inspection happens when waterproofing, screed, concealed pipes and conduits are complete and nothing has been tiled or boarded over. Ask for it in writing at the contract stage so it sits in the programme rather than being a favour.

Watch the water test in wet areas. Standard site practice is to seal the outlets and hold water over the waterproofing membrane long enough to show a leak, then check the ceiling of the space below where that is accessible. Photograph the flooded area with a timestamp; that photograph is the only evidence that will matter if a wet-area leak appears eight months later.

Check the falls and the service positions while they are still visible. Water poured on the finished screed should run to the floor trap without pooling. Socket, switch, data and lighting positions should be measured against the drawing and against the furniture actually bought, because a socket 100mm off is invisible now and permanent later. Take a full set of wall photographs showing conduit and pipe runs before they disappear — the drilling plan for every shelf ever hung in that flat depends on them.

Inspection two: after painting, before carpentry is fixed

The second inspection catches surface work while the walls are still reachable. Look at painted walls under raking light from a torch held near the surface, which shows roller marks, patching shadows and missed filler that ordinary daylight hides. Tap wall and floor tiles with a coin or a light rod: a hollow, drummy sound means poor adhesive coverage and a tile that will crack under load.

Check the tiling geometry rather than only the tiles. Grout lines should hold their line across a wall, cut tiles should sit at the least conspicuous edges, and internal corners should be sealed with a clean silicone bead rather than grout that will crack. Confirm that ceiling openings for lights, fan coil units and access panels are where the drawing puts them, because carpentry installed against a wrongly placed ceiling drop cannot be corrected without removing both.

Inspection three: the handover walkthrough, room by room

Do the handover walkthrough after post-renovation cleaning, in daylight, with power and water on, and allow real time for it rather than a rushed twenty minutes.

Wet areas

Run every tap and shower for several minutes and watch where the water goes: it should reach the floor trap with no pooling and no seepage at the door line. Check that the WC is stable and does not rock, that the cistern refills and stops, that the shower screen sits plumb with an even silicone joint, and that there is no water at the underside of any exposed pipe joint.

Floors, walls and ceilings

Walk the whole floor listening for hollow tiles and looking along the surface for lippage between adjacent tiles or planks. Check skirting for consistent gaps, corners for cracked filler, and ceiling boards for visible joints, screw dimples or wavy edges. Note every scratch and chip at this point, because damage found after furniture moves in becomes an argument.

Carpentry

Open and close every door and drawer twice. Look for even gaps around every door front, drawers that self-align rather than catch, soft-close hardware that actually closes, shelves that sit level, and edge banding that is fully bonded at corners. Check the inside of every cabinet for unfinished raw board, unsanded cuts and missing back panels, and confirm that carpentry does not block the household shelter door, sockets or aircon service access.

Electrical, aircon and openings

HDB requires an EMA-licensed electrical worker for all electrical work in a flat and a BCA-trained installer for air-conditioners (HDB, Application for a Renovation Permit), so ask that person to demonstrate the distribution board: every circuit labelled, the residual current circuit breaker tripping on its test button and resetting. Test every socket with a plug-in tester or a small appliance, count them against the plan, run each aircon unit until it produces cold air, and confirm the condensate drains away instead of dripping. Open and close every window and door, including the main entrance door, which must be half hour fire-rated and complete with a door closer where it sits along a fire escape route (MyNiceHome, HDB).

How to write a defect list your contractor can act on

A defect list works when each entry is a location, a description and a photograph, numbered, with space for a rectification date and a sign-off. "Kitchen, third drawer from left, front misaligned by roughly 3mm at top right" is actionable; "kitchen carpentry not nice" is not.

Send the list through one channel and keep it there. A list split across three WhatsApp threads, a phone call and a site conversation loses items, and the items it loses are always the ones nobody wants to pay for. Agree a rectification window in writing, then re-inspect against the numbered list rather than walking the flat again from scratch.

Separate defects from variations honestly. A door that does not close is a defect. A door you have decided you want in a different finish is a variation, and pushing variations onto a defect list is the fastest way to lose a contractor's goodwill on the items that genuinely are their responsibility.

Final payment, warranty and what happens if rectification stalls

Hold the last payment against the defect list rather than against the calendar, and write that link into the contract before work starts. CaseTrust requires payments to be collected in phases upon agreed milestones and caps the initial deposit at a maximum of 20% of the total cost, and requires accredited businesses to purchase a deposit performance bond safeguarding deposit payments against closure, winding up and liquidation (CASE); the structure of the final instalment itself is a matter for your contract. TO FILL: Noble's final payment and retention terms tied to defect rectification

Keep the paperwork that the warranty runs on. CaseTrust-accredited renovation businesses must give a workmanship warranty of 12 months from the completion date of the works (CASE), and warranties on appliances, sanitaryware and locksets usually come separately from each manufacturer with their own start dates and registration requirements. File the completion date, the defect list, the sign-offs and every product warranty card in one place.

Escalation exists if rectification stalls. CASE received 787 complaints against renovation contractors in 2025, down 18.2% from 962 in 2024 (CASE media release, February 2026), and CaseTrust accreditation requires a redress system with proper and clearly defined dispute resolution mechanisms, including mediation by the CASE Centre if disputes cannot be resolved (CASE). HDB is not that escalation route for workmanship: HDB states that it does not endorse nor guarantee the quality of listed contractors' works, and that engaging a listed contractor is a private contract between the homeowner and the contractor (HDB).

The rule, in the regulator's own words

CaseTrust-accredited renovation businesses must provide a workmanship warranty of 12 months from the completion date of the works.

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— CASE, CaseTrust accreditation

The text above is quoted from CASE — CaseTrust accreditation for renovation businesses; the link goes to the primary source so it can be checked rather than taken on trust.