Unpaid progress claims and defect fights need a fast, clear route
If you’re a contractor, subcontractor, or supplier who hasn’t been paid, or an owner staring at defects and a contractor who’s walked off, you don’t need a long brief on construction law. You need to know the fastest, cheapest way to get this resolved.
I’m Roy. I handle civil litigation at A.W. Law LLC in Chinatown. Over the years I’ve dealt with the full range of Singapore construction matters, from S$30,000 subcontractor payment claims to multi-party condominium disputes.
This page is for you if there’s an unpaid progress claim, a contested variation, a delay argument, defects after handover, or a retention sum dispute. The first 10 minutes are free, and nothing commits you.
What a construction dispute in Singapore actually is
A construction dispute is any legal fight over work done on a building, renovation, or civil engineering project. Most fall into five buckets: payment, variations, delay, defects, and retention.
The core piece of Singapore law here is the Building and Construction Industry Security of Payment Act, usually shortened to SOP or BCISOP. It exists because construction work in Singapore used to suffer badly from delayed or unpaid progress claims. The Act gives contractors, subcontractors, and suppliers a fast adjudication route that runs alongside the ordinary courts.
Venues and routes:
- SOP adjudication. Filed at the Singapore Mediation Centre. Decision usually within about 7 weeks. Best for unpaid payment claims where you did the work, issued a claim, and weren’t properly responded to.
- State Courts. Claims up to S$250,000. Better for defects, delay, or variation fights that aren’t suited to fast-track adjudication.
- High Court. For claims above S$250,000 or for matters where an injunction or other special relief is needed.
- SIAC arbitration. If the contract sends disputes to arbitration (which many SIA and FIDIC-based contracts do), court is off the table. Check the dispute resolution clause in your contract first.
Underneath SOP, you’ll also sometimes use the ordinary law of contract (see our breach of contract and contract disputes pages), negligence, and specific construction-industry rules around certifiers, variations, and liquidated damages.
The key procedural terms worth knowing:
- Payment claim. The formal request for payment a contractor or supplier serves on the paying party.
- Payment response. The paying party’s formal reply, within 21 days, saying what they accept and dispute.
- Adjudication determination. The written ruling from the SMC adjudicator. Enforceable as a court judgment.
- Defects liability period (DLP). Usually 12 to 24 months after practical completion, during which the contractor must fix defects at its cost.
When to act on a construction dispute in Singapore
Before I take a matter on, I ask a few questions.
- Is the contract under SOP? Almost all construction work in Singapore is, but there are exceptions (for example, contracts with a natural-person owner of a dwelling, in some cases). If SOP doesn’t apply, we’ll say so and plan a different route.
- Has a payment claim actually been served? SOP procedure turns on documents served on specific dates. If the payment claim is malformed or out of time, the adjudication may fail on technicality.
- Is this really a SOP matter, or something else? Defects fights, delay claims, and variation disputes that are heavily contested may be better in court or arbitration. We’ll tell you which route fits.
- What does the dispute clause say? If the contract sends disputes to SIAC or to a specific adjudication body, that controls. Always read the clause first.
- Who’s the right defendant? Main contractor, subcontractor, employer, owner, developer. Getting the right party on the claim is half the battle.
The three patterns we see most often:
- Main contractor vs subcontractor on progress claims. A payment claim is ignored or short-paid. Classic SOP adjudication territory.
- Owner vs contractor on defects and delay. After handover, defects emerge, or liquidated damages are in play.
- Variations and scope creep. Extra work was done; the contractor says it’s a paid variation, the owner says it was in the original scope.
When to act and what to expect
How long you have. SOP payment claims have tight statutory deadlines (usually the payment claim must be served by a set date each month, and the response and adjudication application windows are counted in days). Outside SOP, contract claims have a 6-year limit under the Limitation Act, and negligence claims also 6 years from when the damage was reasonably discoverable.
How long it takes. SOP adjudication usually delivers a written determination within about 6 to 8 weeks of the payment claim. State Courts litigation takes 6 to 12 months. High Court and SIAC arbitration typically take 9 to 18 months for a straightforward matter, longer if expert evidence on defects or delay is needed.
How much it costs. An SOP adjudication runs S$5,000 to S$15,000 in legal fees for most matters, plus SMC and adjudicator fees. A State Courts litigation through to trial runs S$10,000 to S$25,000. High Court and SIAC matters cost more, typically starting around S$25,000 for a fully run arbitration and going up fast if expert witnesses are needed. The 10-min Construction Disputes Discovery Session is free.
What’s hard. Two things. First, the documents. Construction disputes live or die on the paper trail: certificates, payment claims, site instructions, photos. We’ll ask for a lot, early. Second, the technical side. Defects and delay often need expert evidence (a quantity surveyor, an engineer). That adds cost, and it’s something we’ll flag upfront.
How we handle construction disputes at A.W. Law
A few things we do differently:
- Fixed fees for SOP adjudication where possible. So you know the cost of each stage before you commit.
- One lawyer end to end. The person you meet at the first session runs the matter through to determination, judgment, or award.
- Plain-English advice. The construction industry is full of jargon. We translate it so you can make commercial decisions, not just legal ones.
- WhatsApp until 10pm on weekdays. Site problems don’t wait for 9am Monday.
- Speak your language. English, Malay, or Tamil. Roy also speaks Malayalam.
- Honest about the route. If SOP won’t work and a court or arbitration is the right call, we’ll say so on day one rather than running a doomed adjudication.
We’re at 133 New Bridge Road, #20-03 Chinatown Point. Two minutes’ walk from Chinatown MRT, Exit E. Walk-ins welcome most afternoons between 2pm and 5pm on weekdays.
What happens next
If you’ve served a payment claim and haven’t been paid, or you’re staring at defects or a delay fight, the next step is simple. Book a free 10-min Construction Disputes Discovery Session using the form on this page, or message us on WhatsApp using the button anywhere on the screen.
Nothing commits you. Bring the contract, the most recent payment claim, and any response. You’ll leave knowing whether SOP adjudication, court, or arbitration is the right route, what the realistic recovery is, and what the first 4 to 6 weeks will look like.
