Hacking vs non-hacking prices, an itemised hack-and-redo breakdown, worked scenarios and a diagnosed fixed quote from a Klang Valley contractor.
Every bathroom waterproofing quote in Malaysia falls into one of two camps: treat the leak without touching the tiles, or hack up the floor, rebuild the waterproofing layer properly and retile. The price gap between them is large, and so is the difference in what you actually get. This is the central table of this guide (indicative 2026, Klang Valley):
| Approach | Indicative cost | Downtime | Typical warranty |
|---|---|---|---|
| Non-hacking treatment (sealer / injection) | RM1,500 – RM3,500 | 1 – 2 days | 6 months – 2 years |
| Hack-and-redo (incl. retiling) | RM4,500 – RM9,000 | 5 – 10 days | 5 – 10 years |
| PU injection, ceiling below (per bathroom) | Market RM80 – RM250 / point; ClickBina RM650 flat | Half a day | 6 months (ClickBina) |
Non-hacking is genuinely the right answer for many leaks — but only some. The rest of this guide breaks down where each ringgit goes and how to tell which camp your bathroom is in. For the whole-house rate picture beyond bathrooms, see our master waterproofing cost guide.
A hack-and-redo looks expensive until you see what is inside it. For a standard bathroom (roughly 35–45 sq ft of floor plus wet-wall upturns), the RM4,500–RM9,000 splits like this:
| Work item | Indicative cost | Notes |
|---|---|---|
| Hacking & debris disposal | RM900 – RM1,600 | Old tiles and screed up, carted out (condo rules add cost) |
| Re-screed with falls | RM500 – RM1,000 | New screed sloped properly to the floor trap |
| Waterproofing membrane | RM700 – RM1,300 | Flexible two-part membrane at RM8–RM14/sq ft, floor + upturns + wet walls |
| Ponding test (24–48 hours) | Included – RM200 | Floor flooded and held to prove the membrane before tiling |
| Tiling — supply & install | RM2,000 – RM3,800 | The single biggest line; tile choice moves it most |
| Plumbing checks & reinstating sanitaryware | RM400 – RM1,100 | Embedded pipes pressure-tested while the floor is open |
Notice that the membrane — the part that actually stops water — is barely 15% of the bill. You are mostly paying to get at it and to make the bathroom beautiful again. That is also why doing it properly once beats doing it cheaply twice. If you are retiling anyway as part of a bigger refresh, the waterproofing marginal cost is small — see our bathroom renovation cost guide for the full-renovation angle.
Non-hacking treatments attack the leak without lifting tiles, and they vary in mechanism and price. Nano or penetrative sealers flood the tile grout and screed with a water-repelling compound from above (RM800–RM2,000 per bathroom). Full non-hacking packages — sealer plus regrouting, trap and joint resealing and silicone renewal — run RM1,500–RM3,500 per toilet. PU injection treats an actively dripping ceiling from the floor below at market rates of RM80–RM250 per point; ClickBina prices this at a flat RM650 for one bathroom ceiling with a 6-month no-leak warranty, so the bill cannot multiply point by point. Our toilet waterproofing without hacking guide covers these methods and their limits in detail.
| Scenario | Sensible route | Indicative total |
|---|---|---|
| Single condo master bathroom, membrane failed | Hack-and-redo with new tiles | RM4,500 – RM7,000 |
| Two bathrooms, landed house, done together | Hack-and-redo, shared mobilisation | RM8,000 – RM14,000 |
| New condo, leak into unit below, within DLP | Developer defect claim | Often RM0 to you — document and claim |
| Older toilet, minor seepage, tiles staying | Non-hacking package | RM1,500 – RM3,500 |
Two bathrooms done together cost meaningfully less than two done a year apart — the hacking crew, disposal run and tiler mobilise once. If your leak is a wet ceiling downstairs rather than a wet floor upstairs, start with our PU injection guide — injection may solve it for a fraction of a redo.
Within the ranges, your bathroom lands higher or lower based on: floor area and how much wall the wet zones cover (upturns and shower walls are membraned too), tile choice (the swing between a RM3/sq ft ceramic and a RM12/sq ft porcelain is thousands on supply and more on labour), condo logistics (lift protection, restricted working hours and debris-disposal rules all add labour), plumbing surprises (a corroded embedded pipe found mid-job must be fixed while the floor is open — the right call, but a variation), and access to the floor trap and pipe runs. A contractor who inspects before quoting can price these in; one who quotes over WhatsApp photos alone will “discover” them later.
Two patterns account for most bathroom waterproofing bill shock. First, the per-point trap: an RM80-per-point injection quote sounds cheap until the contractor marks 15 points on your ceiling and the bill lands at RM2,400 — that is precisely why ClickBina charges RM650 flat for one bathroom ceiling, whatever the point count. Second, the wrong-tool trap: a nano sealer sprayed over a genuinely failed membrane is a cosmetic pause, not a repair — the leak returns in months, and you end up paying for the non-hacking treatment AND the hack-and-redo it delayed. A cheap quote is only cheap if it is the right method for the actual failure. Insist on a diagnosis — not just a price — before you compare numbers.
If your unit is within the developer’s defect liability period (DLP — commonly 24 months from vacant possession under the standard sale and purchase agreement), a leaking bathroom or a stained ceiling from the unit above is usually claimable as a defect. Document everything with dated photos, submit the developer’s defect form in writing, and chase it — do not pay for a hack-and-redo the developer owes you. Where the developer’s contractor drags out repeat “repairs” that never hold, an independent inspection report gives your claim teeth. Past the DLP, the repair is on you (or negotiated with the upstairs neighbour), and the tables above apply.
Rough rules that hold up in practice: choose non-hacking when the leak is minor or intermittent, the tiles are staying, the bathroom is older but serviceable, and you accept a shorter-warranty fix. Choose hack-and-redo when the ceiling below is actively dripping through a failed membrane, when a non-hacking attempt has already failed once, when the pipes embedded in the floor are suspect, or when you plan to retile anyway — at that point the extra cost of doing the membrane properly is small and the 5–10 year warranty is worth having. Our full bathroom waterproofing guide covers the methods, materials and failure signs behind this decision.
For a hack-and-redo, insist on: complete removal of old screed down to the slab (membrane over loose screed fails), crack and joint treatment, a flexible two-part membrane taken up the walls at least 300mm (1.8m in shower zones), reinforcement at corners and around the floor trap, and — non-negotiable — a 24–48 hour ponding test with the trap sealed before a single tile goes down. A contractor who skips the ponding test is asking you to take the risk. For non-hacking work, insist on a written scope naming the product used and a warranty that says what happens if the leak returns.
Do bathrooms in pairs to share mobilisation. Pick mid-range tiles — the membrane does not care what covers it. If the bathroom is due a facelift within a year or two, combine waterproofing and renovation into one job instead of paying for tiling twice. Use your DLP if you have one. And do not over-buy: a RM3,500 non-hacking package on a bathroom that genuinely only needs regrouting and silicone is as wasteful as a sealer on a failed membrane. An honest diagnosis first is the biggest money-saver in this trade.
ClickBina diagnoses before quoting — we tell you whether your bathroom needs a RM650 injection, a RM2,000 non-hacking package or a proper hack-and-redo, with an itemised fixed quote for whichever it is. Flat-rate PU injection (RM650 one bathroom ceiling, 6-month no-leak warranty), ponding tests as standard on every redo, and WhatsApp replies within the hour across the Klang Valley. Send photos of the bathroom and the ceiling below for a same-day assessment.
Tell us what you need — we reply within the hour.