Toilet & Bathroom Waterproofing in Bukit Mertajam
If showering upstairs means drips downstairs in your Bukit Mertajam 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 Penang carry a 5-year warranty and come with a clear written price before any hacking begins.
Book a free inspection
Bathroom waterproofing re-dos in Bukit Mertajam homes cost RM2,500 – RM6,000 per bathroom.
Common roof problems in Bukit Mertajam
- Termites damage timber trusses in older terraces.
- Rusted valley gutters overflow into ceilings during storms.
- Flat porches and extensions pond and leak at joints.
Neighbourhoods we serve in Bukit Mertajam
Alma, Bandar Perda, Machang Bubok, Bukit Minyak, Juru, Permatang Pauh, Berapit, Simpang Ampat
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 Bukit Mertajam?
In Bukit Mertajam, bathroom waterproofing is indicatively RM2,500 to RM6,000 per bathroom, including hacking and re-tiling, with a 5-year warranty. Your Bukit Mertajam price is confirmed after the free inspection.
Do you waterproof condo bathrooms in Bukit Mertajam?
Yes. We waterproof bathrooms in Bukit Mertajam condominiums and apartments, and coordinate with management where needed.
How long will my bathroom in Bukit Mertajam be out of use?
Most bathroom waterproofing jobs in Bukit Mertajam take three to five working days, including a flood test before re-tiling.
Do you cover Alma, Bandar Perda and Machang Bubok?
Yes. Our north team covers Bukit Mertajam, including Alma, Bandar Perda, Machang Bubok, Bukit Minyak, Juru, Permatang Pauh, Berapit and Simpang Ampat. The roof inspection and on-the-spot quotation are free for homes. Book online with your address and photos, and we will confirm a slot.
How fast can a roofer come to Bukit Mertajam?
Free inspections in Bukit Mertajam are usually arranged within 1–3 working days. During storm-heavy months, book early as demand rises. Photos or videos of the leak and ceiling help our technician prepare and give an accurate quotation on the day.
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.
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