9 Best Plumbers in Singapore (August 2026)

Here is the part most people skip. In Singapore, certain water and sanitary works legally require a PUB-licensed plumber, known as a Licensed Plumber or LP. This is not marketing fluff. Works that connect to the public water supply, like installing or replacing a storage water heater, altering water supply pipes, or replacing water fittings, fall under PUB regulation, and an LP is the only person allowed to certify them. A general handyman doing this work is not just risky, it can be non-compliant.

For everyday jobs, the line is softer. Clearing a choke, fixing a leaking tap, swapping a toilet seat or unclogging a floor trap does not always need an LP. But here is my honest take: the good PUB-licensed firms handle both the regulated and the everyday work anyway, so hiring one for everything saves you from guessing where the line sits. A proper licence number (you will see formats like LP or WS followed by digits) is the single fastest credibility check you can do before letting someone into your flat.

The other thing I look for is a real 24-hour response and a transparent callout fee. A burst pipe or a backed-up toilet does not wait for office hours, and the firms worth trusting will tell you the inspection fee and the nett price before they touch anything. If a water heater job also involves the electrical connection, you may want a licensed electrician on the same visit (my best electricians in Singapore guide covers that), and if your "leak" is actually condensation dripping from a unit, it might be an aircon issue, which my best aircon servicing in Singapore guide handles.

Prices vary by job complexity, parts and time of day (after-hours emergencies cost more), but here are the realistic ranges I see across the firms on this list. Treat these as a guide and always get the nett quote confirmed before work starts.

The single biggest cost driver is whether the issue is contained or hidden. A visible leaking tap is cheap and quick; a concealed pipe leak behind a wall or under a slab means detection work, hacking and reinstatement, which is where bills climb. After-midnight emergency callouts also carry a premium, so if it is not urgent, booking for daytime usually costs less.

1. A PUB licence where the job requires it. For water-supply and regulated sanitary works, a Licensed Plumber (LP) number is non-negotiable. For everyday jobs it is still a strong trust signal.
2. A transparent callout or inspection fee. The firm should tell you the inspection cost and the nett repair price before they start, not after.
3. Genuine 24-hour availability. Burst pipes and chokes do not keep office hours, so a real round-the-clock line matters for emergencies.
4. Reviews at volume, not just a high star count. A 4.9 across thousands of reviews tells me far more than a perfect score across a handful.
5. A workmanship warranty. A 30 to 90-day guarantee that the same fault will be re-fixed free shows the firm stands behind its work.

I am a web designer, not a plumber, so I will be upfront about my method. I searched the way a frustrated homeowner would (best plumber Singapore, 24 hour plumber Singapore, PUB licensed plumber), then visited each firm's actual website and checked the things that signal a real, accountable business: a visible licence number, clear pricing or at least a stated callout fee, genuine 24-hour cover, and the depth and consistency of their Google reviews.

Where I could verify a rating or review count, I have stated it; where I could not, I have described the reputation qualitatively rather than invent a number. Ratings and prices shift over time, so confirm the current quote and licence directly with the plumber before you book. If you spot something out of date, that is on me to update.

For certain works, yes. Any job that connects to or alters the public water supply, like installing or replacing a storage water heater, changing water supply pipes, or replacing water fittings, must be done by a PUB-licensed plumber (LP) in an HDB flat or condo. For non-regulated everyday jobs such as clearing a choke, fixing a leaking tap or replacing a toilet seat, you have more flexibility, but most reputable firms are LP-licensed anyway, so hiring one keeps you compliant without having to figure out which side of the line your job falls on.

A standard callout or inspection fee usually sits between S$40 and S$80, and many firms waive or rebate it against the repair if you go ahead with the work. After-hours and emergency callouts (late night, public holidays) typically carry a premium on top. The key is to ask for the callout fee and whether it is absorbed into the job before the plumber comes out, so there are no surprises. Any firm that refuses to state its callout fee upfront is a red flag for me.

Yes, several firms on this list run genuine round-the-clock teams. Mr Plumber, Nile Plumbing, Wong Plumber, QB Plumbing, EZ Plumber and ADM Plumbing all advertise 24-hour or 24/7 emergency response, and some quote average arrival times of 30 to 45 minutes for urgent cases. For a true emergency like a burst pipe or an overflowing toilet, call the firm closest to your area first, since proximity often beats reputation when minutes matter. Just confirm that the after-hours rate is quoted before they dispatch.

The best defence is getting the nett price agreed before any work starts, in writing over WhatsApp if you can. Ask for a clear breakdown (callout, labour, parts) rather than a single lump sum, and do not authorise extra work mid-job without a fresh quote. For bigger jobs like water heaters or concealed leak repairs, a second quote from another firm on this list takes ten minutes and gives you a sanity check on the price. Firms that publish pricing, like Nile or QB, are inherently easier to hold to a number, which is part of why I rate that transparency so highly.