Toilet & Bathroom Waterproofing in Petaling Jaya
If showering upstairs means drips downstairs in your Petaling Jaya home, the waterproofing under the tiles has probably failed. Our CIDB-registered installation partner hacks to the slab, lays a new membrane and flood tests before re-tiling. Works across Selangor carry a 5-year warranty and come with a clear written price before any hacking begins.
Book a free inspection
PJ's older terraces often have original 1970s–1980s bathrooms; a full waterproofing re-do runs RM2,500 – RM6,000 per bathroom.
Common roof problems in Petaling Jaya
- The joint between an original pitched roof and a later flat-roof extension cracks and lets water track into the kitchen ceiling.
- Leaves from PJ's mature trees block gutters and valley gutters, which overflow during short heavy storms.
- Old metal gutters and zinc sections have rusted through after decades of use.
Neighbourhoods we serve in Petaling Jaya
Section 14, Section 17, SS2, Taman Megah, Taman Paramount, Damansara Jaya, Damansara Utama, Kelana Jaya, Ara Damansara
Signs your bathroom waterproofing has failed
- Damp patches, stains or dripping on the ceiling directly below the bathroom
- Stains that appear after showering, not after rain
- Cracked or hollow-sounding floor tiles and missing grout
- Damp or peeling paint on walls outside the bathroom door
- Musty smell or mould along the bottom of bathroom walls
How we waterproof a toilet, step by step
A lasting fix means replacing the waterproofing layer, not just sealing the grout. Our site team follows a fixed sequence.
- Inspect and test: check plumbing, floor trap and pipe joints to rule out a pipe leak
- Hack the floor tiles and screed down to the slab, and the lower wall tiles where needed
- Repair the slab, seal pipe penetrations and the floor trap
- Lay the waterproofing membrane on the floor with upturns onto the walls
- Flood test for at least 24 hours to confirm it is watertight
- Screed, re-tile, grout and refit, then hand over with the 5-year warranty
Indicative prices (2026)
| Job | Price range | Warranty |
|---|---|---|
| Toilet / bathroom waterproofing (re-do, incl. hacking and re-tiling) | RM2,500 – RM6,000 per bathroom | 5 years |
| Wall crack PU injection | RM25 – RM60 per linear ft | 2 years |
| Roof inspection + on-the-spot quotation | FREE (remote areas RM150) | — |
Indicative ranges in Malaysia. The exact price is confirmed after the free inspection (roof design, pitch, access and damage).
What happens after you book
Tell us the problem
Send your address and a few photos. Tell us if it leaks only when it rains or also when it is dry.
Free inspection
A technician visits within 1–3 working days, water-tests and checks the roof, and shows you the cause.
Quotation on the spot
A clear written quotation. No obligation. Deposit only when you confirm.
Works + warranty
Our site team completes the job and you receive a written workmanship warranty.
Frequently asked questions
How much is toilet waterproofing in Petaling Jaya?
In Petaling Jaya, bathroom waterproofing is indicatively RM2,500 to RM6,000 per bathroom, including hacking and re-tiling, with a 5-year warranty. Your Petaling Jaya price is confirmed after the free inspection.
Do you waterproof condo bathrooms in Petaling Jaya?
Yes. We waterproof bathrooms in Petaling Jaya condominiums and apartments, and coordinate with management where needed.
How long will my bathroom in Petaling Jaya be out of use?
Most bathroom waterproofing jobs in Petaling Jaya take three to five working days, including a flood test before re-tiling.
Do you cover SS2, Section 17 and Damansara Jaya in Petaling Jaya?
Yes. Petaling Jaya is fully covered by our central team, including SS2, Section 14, Section 17, Taman Megah, Taman Paramount, Damansara Jaya, Kelana Jaya and Ara Damansara. The inspection and on-the-spot quotation are free. Book online with your address and photos and we will confirm the nearest site team.
How fast can a roofer come to Petaling Jaya?
Most Petaling Jaya bookings get a free inspection within 1–3 working days. In storm season the queue gets longer, so booking early helps. Photos or a short video of the stain or leak point let our technician prepare and sometimes quote the likely fix range before arriving.
How much does toilet waterproofing cost in Malaysia?
Toilet or bathroom waterproofing costs about RM2,500 to RM6,000 per bathroom in 2026, including hacking the old tiles, a new membrane, flood test and re-tiling, with a 5-year warranty. Size, wall tiling removed, tile choice and access affect the price. The exact figure is confirmed after our free inspection.
Why is my toilet leaking to downstairs?
The most common reason is a failed waterproofing membrane under the floor tiles, often around the floor trap, shower area or pipe penetrations. A cracked water pipe or loose floor trap can cause the same stain. A stain that appears after showers, not after rain, points to the bathroom.
Can bathroom waterproofing be done without hacking tiles?
Some products are applied over tiles or into grout and may slow a minor leak, but they rarely fix a failed membrane underneath. For a lasting repair with a 5-year warranty, the tiles and screed are hacked to the slab and a new membrane is laid. Our technician explains the options on site.
Other roofing services in Petaling Jaya
Nearby areas
Kuala Lumpur, Shah Alam, Subang Jaya, Puchong, Cheras, Klang