What renovation mistakes do first-time HDB owners make?

First-time HDB owner renovation mistakes start with skipping the defects check

The keys are yours, the designer has a moodboard ready and hacking is pencilled in for next week. That rush is where many HDB renovation mistakes begin. Once vinyl covers the tiles or carpentry boxes in a wall, it is hard to show that a crack or hollow tile was there from day one.

HDB says all newly completed HDB flats are covered by a 1-year DLP from the date of key collection, and it asks owners to report defects within 1 month of key collection and before renovation works begin. After your report, the Building Service Centre (BSC) arranges a joint inspection, assigns contractors and, when the work is done, arranges a closing inspection with you.

Walk the flat before any contractor arrives: tap the floor tiles, run every tap, flush each toilet and slide every window. The post-renovation defects checklist covers similar checks, and you will want it again at handover.

Starting work before the permit is granted

Say you want two extra power points in the study and an aircon unit in the second bedroom. Both sound minor, and both can involve paperwork. HDB's permit page says some electrical work needs an HDB permit, and your Licensed Electrical Worker (LEW) may apply for the Electrical or Air-Conditioner Installation Permit for you. Proceed only after the permit is granted.

If anyone suggests hacking first and sorting out approval later, pause and ask who is submitting the application and when. Waiting is an easy way to avoid unauthorised works. Our HDB renovation permit guide explains which works need one.

Plan the clean-up as well. HDB notes that your Town Council may provide debris removal, so check with it about the charges before rubble bags pile up at the lift lobby.

Hiring an unlisted contractor

A relative's friend who did a nice kitchen in Punggol, or a name that keeps appearing in your block's chat group, can feel like a safe pick. Before you sign, confirm the firm is an HDB registered renovation contractor, and research its credibility and track record, as CASE advises in the CCCS release.

HDB says engaging a contractor is a private contract between you and the contractor, and HDB is not privy to it. It points owners to CASE's Consumer Guides, the CCCS Fair Trading Practices guide and CaseTrust accreditation for renovation businesses. CASE also keeps a Company Alert List of businesses that have had complaints lodged against them.

Note down the company's registered name, not just a brand or a mobile number, so the name on the contract matches the one you checked.

Paying too much up front

A large deposit feels like commitment, but it moves the risk onto you before a single tile is lifted. CASE's advice, in the CCCS release on renovation fair trading, is to negotiate the deposit as low as possible and pay progressively by project milestones. CASE also suggests photographing outstanding defects and making sure they are fixed before full payment.

One of the more useful renovation contract tips is to tie each payment to work you can see. A stage might close when hacking is done, when wiring and plumbing are in, when carpentry is installed, and at handover. Our renovation payment schedule guide shows how to set those stages out. Quotes for the work itself depend on your flat and scope, and the directory link below shows companies' own published prices.

A vague contract and scope

"Kitchen carpentry, complete" on a quotation tells you very little. Upper and lower cabinets? Which material and hinges? Is the sink cut-out included? Every gap in the scope can turn into an argument later. The CCCS guide for the renovation industry sets out what fair dealing covers:

CASE adds, in the same release, that you should insist on a written contract that says how delays are handled and describes the goods and services. If you cannot settle a dispute over price, schedule or quality privately, HDB notes that you can seek help from CASE, the Singapore Mediation Centre or the Small Claims Tribunals, or go to court. Before signing, go through how to read a renovation contract with your quotation beside it.

Forgetting the small things

The details owners regret are rarely the big jobs. They are the bedside without a socket, the TV wall with no point for the decoder, and aircon trunking running across the living room ceiling. In HDB flats, new wiring is not embedded in walls or plaster; it runs in surface trunking, above a false ceiling or behind carpentry. Sketch the furniture first, then mark the points, using our notes on planning electrical points.

HDB's building works guidelines also cover wet areas: bathrooms and toilets need pre-packed waterproofing screed and a waterproofing membrane before new floor finishes, with the membrane turned up at least 150mm against walls and kerbs. Ceiling drying racks need fasteners 6mm or less in diameter and 40mm or less in depth. For general move-in topics, see the new homeowners FAQ.

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