DIY defect check or hire a professional? An honest answer.

The objection, said out loud

If you have spent an evening on HardwareZone or the Singapore property subreddits, you already know the argument against hiring anyone. It runs roughly like this: the inspector turns up with a roll of stickers, tags two hundred items, most of which are scratches and paint blobs you could have found yourself, hands you a thick PDF, and charges you a few hundred dollars for the privilege. The contractor then fixes the same things they would have fixed anyway.

It is a fair suspicion. Anyone selling inspections has an obvious interest in the answer, which is why the answer is hard to trust — including ours. Nobody selling a service is a reliable witness on whether the service is necessary.

So here is our position, which is a slightly awkward one for us to hold. A careful, patient owner can find most of the defects in a new Singapore home without hiring anybody. We believe that firmly enough to have built a free CONQUAS-driven checklist app (free to use; it asks you to create an account so your list saves to you) that walks you through it room by room, and to publish our full inspection toolkit at no charge. If the free route works for you, use it. What follows is an honest map of where it works well, where it gets harder, and where paying for help actually buys you something.

What you can genuinely check yourself

More than most people expect. None of the following needs training, and most of it needs no equipment beyond a phone torch, a spirit level, a bottle of water and some patience:

• Doors and windows: Open and close every one. Check that they latch, lock, sit square in the frame, and don’t swing on their own. Check the seals and the beading. Sliding doors should run without lifting or scraping.
• Paint and plaster: Look along walls at a shallow angle with a torch rather than head-on. Runs, misses, roller marks, patched skim coats and undulations all appear in raking light and disappear in flat light.
• Tiles, visually: Chips, cracks, lippage (one tile sitting proud of its neighbour), uneven or missing grout, and mismatched cuts at edges are all findable with your eyes and a fingertip.
• Basic water flow: Run every tap and shower, fill and drain every sink, and flush every WC. Watch for slow drainage, gurgling, and drips at the trap while the tap is running.
• Sanitary fittings and joinery: Check silicone beads, cabinet doors, drawer runners, hinges, and whether anything is fixed loose to the wall.
• The obvious wet-area test: Pour a little water on a bathroom or yard floor and watch where it goes. If it sits still or runs away from the drain, note it.
• Socket polarity: A plug-in socket tester costs very little at a hardware shop. Plug it into every socket in the flat. It is probably the highest-value $15 a DIY checker can spend, and we say so in our guide to reverse polarity sockets and why appliances still work on them.
• The household shelter: Check the door seal, the hinges, the ventilation plate and the bolts against the labels inside the door.

The two things that decide whether a DIY check succeeds are not skill. They are method and stamina. Working room by room in a fixed order, photographing each item with something in frame for scale, and writing a numbered list as you go is most of the job. Wandering around the flat noticing things is not.

What is harder to catch without equipment or training

This is the honest part of the ledger, and it is narrower than the marketing usually suggests. Four categories account for most of it.

Hollow tiles

You can tap-test tiles yourself. The method is not a secret: strike each tile with a coin or a small metal rod and listen for the dull note against the sharp one. The difficulty is volume and consistency. A flat has several hundred floor tiles plus every bathroom wall, and the standard is unforgiving on this point: BCA’s CONQUAS (Private Residential) manual treats hollowness in a tiled floor or wall as a non-compliance “as long as it is hollow”. What it will not tell you is how many hollow tiles are acceptable in your own home, because it is a sampling-based score for builders: assessors check selected locations, each assessed item is marked pass or fail, and the project is banded on the resulting non-compliance rate. Tapping a sample tells you very little; tapping all of them takes hours and a steady ear. Our guide to hollow tiles in Singapore homes sets out the method in full if you want to do it yourself.

Drainage falls and ponding

Splashing water on a floor tells you whether it is badly wrong. It does not tell you whether the fall is marginal, whether water ponds in one corner of a large balcony, or whether a shower tray drains fully once the flow stops. A controlled flood test with timed observation and a level is a different exercise from a splash, and it is the one that catches the shallow-gradient bathroom that only reveals itself after you have moved in.

Electrical beyond the socket tester

Polarity is DIY-friendly. Earth continuity and residual current device (RCD) behaviour at the distribution board are not. Testing whether the RCD actually trips within its rated parameters, rather than simply clicking when you press the test button, is work for someone who understands the installation. If in doubt, leave the consumer unit alone and note it as an item to be checked.

Moisture and seepage

Damp behind a finish is invisible until it is not. A moisture meter reading on a wall behind a sink, or a thermal scan showing a cold band along a ceiling, can flag moisture behind a finish before it shows as a visible stain. This matters more than it sounds, because HDB’s Assure 3 warranty covers ceiling and inter-floor seepage and external-wall seepage for five years from key collection, and spalling concrete for ten. Finding an early sign is what lets you use those windows deliberately rather than reactively.

The “why did they find 200 defects?” question

This is the cynicism worth addressing directly, because the number really can look absurd, and a long list is not by itself proof of thoroughness.

Two things are true at once. The first is that most defect lists are genuinely long, because the counting unit is small. One hollow tile is one defect. Forty hollow tiles in a bathroom are forty defects, even though they are one rectification job. If three of the sockets in a flat are reversed, that is three defects, not one “electrical” line. A long list is usually a smaller number of real problems expressed at item level, and that is the correct way to record them: a tile-by-tile list is what a contractor can act on, whereas “some tiles sound hollow” invites a shrug.

The second is that not everything on a long list is equal. A scuff on a skirting board and a bathroom that drains the wrong way both occupy one line. A report that does not separate them is not doing its job. When you read any defect list, yours or someone else’s, sort it into three piles:

1. Claimable and consequential: drainage falls, seepage, electrical faults, hollow tiles in wet or high-traffic areas, doors that don’t seal, shelter non-compliance. These affect how the home works.
2. Claimable but cosmetic: paint runs, minor chips, grout finish. Worth reporting inside the window, because they are free to rectify then and yours to pay for later, but they should not be what the list is about.
3. Not defects: design choices you dislike, finishes that match the specification you signed, and marks you or your movers made after handover.

Judge an inspection by whether it makes that distinction legible, not by the headline count. We make no claims about what any particular list will achieve with a developer or with HDB; what a good report gives you is documentation quality, dated and specific enough to be difficult to wave away.

When you don’t need to hire anyone

Genuinely. If any of the following describe you, do it yourself and keep the money:

• The home is small and simple. A 2-room or 3-room flat with standard finishes is a manageable afternoon, or two.
• You are not in a renovation rush. If your contractor isn’t booked for next week, you have the one thing DIY needs most: the ability to come back and check again with fresh eyes.
• You are willing to do a careful second pass. A second visit, in different light and at a different time of day, routinely turns up items the first pass did not. One visit is a look; two is an inspection.
• You are comfortable being systematic. If a numbered list, consistent photographs and a room-by-room order sound like your idea of a reasonable Saturday, you will do this well.
• You work in the industry. Surveyors, architects, engineers and experienced contractors already have the eye and, usually, the tools.

Our room-by-room BTO handover checklist and our guide to the free defect checklist app were built for exactly this reader. They are not a teaser for the paid service. The app asks you to create an account so your list saves to you, and that is the only thing it costs. If you never book an inspection, the tools still work.

When it is worth paying

The paid inspection is not a better pair of eyes. It is help across your DLP year, and it earns its price in four situations:

• Renovation starts soon. Once work begins, causation gets muddy and cosmetic items get absorbed into your contractor’s scope at your expense. This is the clearest case for bringing someone in, and it is why we run a dedicated pre-renovation inspection before the contractors arrive.
• Your timeline is tight. If you can only get to the unit once, on a weekday evening, with the movers booked, a second unhurried pass is not going to happen. Paying buys the time you don’t have.
• You have no reference point and the unit already worries you. If you have found something you cannot categorise as ordinary or not, a second opinion is what experience buys. Knowing which items are routine and which are not is the part experience supplies.
• The property is complex. Larger condos, ECs and landed homes bring balconies, planters, external walls, private lift lobbies, pumps and roof drainage. The surface area and the systems both scale, and so does what a single owner can reasonably cover.

What it costs

Our prices are published in full rather than quoted on request, so you can do this arithmetic before you talk to anyone. For a new HDB flat, a single-visit Essential inspection runs $250 to $450 depending on flat type, and the three-visit Comprehensive package, which covers identification, the joint check and rectification verification, runs $350 to $550. For new ECs, condos and landed homes up to 1,999 sqft, Essential runs $300 to $800 and Comprehensive $400 to $950; larger homes are priced on application. The packages that add post-renovation visits, Post-Reno-4 and Post-Reno-5, range from $550 to $1,350 across the published tables. The full tables are on our pricing page, priced by home size.

Set that against the DIY cost, which is not zero either: a socket tester, a decent torch, a level, and most of two days of your own time. If your two days are worth more than the gap, pay. If they are not, don’t. That is the whole calculation.

The honest close

We would rather you did a thorough job yourself than paid us for a mediocre one. The free app exists because a well-documented DIY defect list, filed inside the window and before renovation, is a genuinely good outcome, and because we would rather be the firm that helped you do that than the firm that pretended you couldn’t.

Where we are useful is narrower and more specific: the tile-by-tile and socket-by-socket work that takes hours, the tests that need instruments, the judgement about which items matter, and the visits later in the year when rectification needs verifying. If you want a straight answer about whether your situation is one of those, send us the unit type and your key collection date and we will tell you honestly, including when the answer is that you don’t need us.

This is a practical guide, not legal advice. Your Sale & Purchase Agreement and HDB’s official process are the binding documents. Inspection is non-invasive and not exhaustive; no inspection, ours or your own, can guarantee that every defect is found.