If you are planning a renovation in Singapore — whether it is a HDB bathroom, condo kitchen, office pantry or commercial fit-out — plumbing cost is often the first line-item you ask about. Prices vary by scope, pipe material, access, and whether your contractor uses a PUB-Licensed Plumber. This 2026 guide breaks down indicative plumbing prices in Singapore so you can budget with confidence. For a quick benchmark, the plumbing price Singapore homeowners and businesses pay depends on the scope, pipe material and access involved.
Plumbing services in Singapore typically cost between S$60 and S$4,500 depending on scope. A single fixture replacement (kitchen tap or basin) runs S$60–S$180. A full HDB bathroom re-pipe with sanitary ware averages S$1,800–S$3,500. Commercial plumbing jobs — F&B grease traps, office pantry fit-outs, commercial bathroom re-pipes — range from S$900 to S$4,500+.
Cost depends on four things: (1) scope of work (fixture-only vs full re-pipe), (2) pipe material (PPR vs copper vs PVC), (3) access (concealed in walls or surface-mounted), and (4) whether your plumber is PUB-licensed — mandatory for water-supply connection work.
HDB bathroom plumbing is the most common renovation scope in Singapore. A typical 3-room or 4-room HDB master bathroom has 1 water closet (WC), 1 basin, 1 shower mixer, and 1 floor trap. Replacing all plumbing pipework from scratch — also known as a full re-pipe — typically costs:
Add it together and a full HDB bathroom renovation with plumbing + tiling + sanitary ware typically comes in between S$5,500 and S$12,000. Pure plumbing scope alone is S$1,800 – S$3,500. If you are only replacing fixtures (no pipe re-route), expect S$150 – S$400 per fixture including labour and consumables.
Three factors inflate HDB plumbing quotes: (a) pipe routing that requires hacking through HDB-approved walls (costs S$80–S$180 per running metre of hack + make-good), (b) converting old GI (galvanised iron) pipes to modern PPR — which requires stripping existing pipework and rerouting, and (c) whether the scope includes waterproofing and water ponding test (mandatory for wet-area).
Commercial plumbing scope in Singapore is broader than residential. A commercial plumbing quote typically covers grease traps, drainage drops, dishwasher points, pantry sinks, commercial bathroom re-pipes, and coordination with BCA-regulated M&E work. Indicative 2026 ranges:
For F&B operators, note that grease traps must comply with NEA trade-waste management sizing guidelines. Undersized traps fail inspection and cost more to rectify post-opening. Get your plumbing contractor to size the trap based on projected kitchen output before installing.
Pipe material is one of the biggest cost drivers in a Singapore plumbing quote. Three materials dominate the market, each with different price points and use cases:
PPR is the default modern choice for cold and hot water supply in Singapore. Fused with heat welding, it has no joints that can fail. Cost: approximately S$12 – S$18 per running metre installed (labour + material). PPR is what most contractors will quote by default for HDB and condo re-pipes.
Copper is the premium option — still specified for some commercial buildings and heritage works. Cost: S$28 – S$45 per running metre installed (roughly double PPR). Copper resists heat and lasts longer but is more expensive to install and requires soldered joints.
PVC is used for drainage and waste lines, not water supply. Cost: S$8 – S$14 per running metre installed. Do not accept PVC for water supply lines in a Singapore reno quote — that is non-compliant with PUB requirements.
Water heaters are usually a separate line item from pipe work. Singapore reno quotes typically break heater cost into (a) heater unit supply, (b) installation labour, and (c) electrician coordination for dedicated MCB:
Budget between S$380 and S$1,100 for a typical bathroom water heater supply + install including MCB. Multipoint systems for larger homes cost more but run more efficiently.
Waterproofing is often bundled with plumbing but is a separate trade. For bathrooms, kitchens and any wet area, Singapore contractors typically price waterproofing by square metre:
For a typical HDB bathroom (4–6 sqm floor + 10–14 sqm wet wall), expect waterproofing to run S$840 – S$1,900 depending on wall area covered and screed depth. A reliable contractor always runs a water ponding test before closing the slab with tiles — if your quote does not include this, push back.
Two plumbing quotes for the same HDB bathroom can look wildly different — here is why:
A credible plumbing quote should be itemised, not lump-sum. When you request a quote from a Singapore plumbing contractor, ask for these line items explicitly:
If your quote is a flat lump sum with no breakdown, walk away. A properly written Singapore plumbing quote runs 5–15 line items and gives you clarity on what you are paying for. It also makes it easier to compare apples-to-apples between two contractors — and you will almost always find that the cheaper quote is cheaper because it excludes waterproofing, or uses PVC for supply, or skips the PUB-licensed sign-off.
For integrated renovation projects where plumbing is one trade among many (tiling, carpentry, M&E, ACMV), working with a single renovation contractor that handles plumbing services in Singapore under one scope keeps coordination simple and removes the "not our scope" finger-pointing that happens when you engage separate trades.
| Plumbing Job | Typical Cost (SGD) |
|---|---|
| Single basin tap install (labour only) | $80 – $150 |
| Storage water heater install + MCB connection | $220 – $450 |
| Concealed pipe re-route (per metre, labour + material) | $120 – $260 |
| HDB bathroom full plumbing overhaul (3-piece) | $3,500 – $6,800 |
| Waterproofing membrane + ponding test (per sqm) | $45 – $90 |
| Choke clearance — kitchen line | $120 – $280 |
| PUB-licensed plumber callout (diagnosis only) | $80 – $180 |
A PUB-licensed plumber in Singapore charges S$60 to S$120 per hour for labour-only jobs, with a minimum callout fee of S$80 to S$180. Most established plumbing contractors quote per-job rather than hourly because it gives you cost certainty and removes the incentive to drag time.
Plumbing pipe replacement in Singapore costs S$120 to S$260 per metre when the pipe is concealed (requires hacking, re-piping, make-good and waterproofing). Exposed pipe replacement is cheaper at S$50 to S$110 per metre. Whole-flat re-piping for a 4-room HDB ranges from S$3,500 to S$8,500 depending on layout complexity.
The cheaper quote almost always excludes one of these: waterproofing membrane, water ponding test, PUB-licensed sign-off, or upgrades from PVC to copper / PEX-AL-PEX for hot water lines. Always compare line items, not totals. A 30% cheaper quote with no waterproofing will cost you 5x more in 2 years when leaks reach the unit below.
Most HDB renovation packages include basic plumbing — tap replacement, fixture install, and floor trap install. They typically exclude concealed pipe re-routing, water heater MCB upgrades, and full waterproofing. If your renovation involves moving the kitchen sink or relocating the toilet, expect plumbing to be quoted as a separate scope at S$1,500 to S$4,200.
For any work that connects to the PUB water main — including water heater installation, new fixture connections, and concealed re-piping — yes, a PUB-licensed plumber must perform or supervise the work. Unlicensed plumbing voids HDB warranty and creates liability if a leak damages a neighbouring unit.
Need a line-item plumbing quote for your Singapore reno?
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Need a plumbing quote for your next project? Visit our full plumbing services Singapore page for scope, process, compliance details and project examples, or WhatsApp us directly for a same-day site survey.