Toilet & Bathroom Waterproofing in Sungai Petani
If showering upstairs means drips downstairs in your Sungai Petani 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 Kedah 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 Sungai Petani homes cost RM2,500 – RM6,000 per bathroom.
Common roof problems in Sungai Petani
- Storm winds shift tiles and lift zinc on homes in open areas.
- Rusted zinc and gutters leak on older homes.
- Extensions leak where they join the original roof.
Neighbourhoods we serve in Sungai Petani
Bakar Arang, Taman Ria Jaya, Bandar Laguna Merbok, Bandar Puteri Jaya, Taman Sejati Indah, Bandar Amanjaya, Sungai Lalang, Bedong
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 Sungai Petani?
In Sungai Petani, bathroom waterproofing is indicatively RM2,500 to RM6,000 per bathroom, including hacking and re-tiling, with a 5-year warranty. Your Sungai Petani price is confirmed after the free inspection.
Do you waterproof condo bathrooms in Sungai Petani?
Yes. We waterproof bathrooms in Sungai Petani condominiums and apartments, and coordinate with management where needed.
How long will my bathroom in Sungai Petani be out of use?
Most bathroom waterproofing jobs in Sungai Petani take three to five working days, including a flood test before re-tiling.
Do you cover Bandar Laguna Merbok, Bakar Arang and Bandar Amanjaya?
Yes. Our north team covers Sungai Petani, including Bakar Arang, Taman Ria Jaya, Bandar Laguna Merbok, Bandar Puteri Jaya, Taman Sejati Indah, Bandar Amanjaya, Sungai Lalang and Bedong. The inspection and on-the-spot quotation are free. Book online with your address and a few photos, and we will confirm a slot.
How fast can a roofer come to Sungai Petani?
Free inspections in Sungai Petani are usually arranged within 1–3 working days, depending on the north team's schedule. During storm season, book early. Tell us whether it leaks only in rain or also on dry days, which helps separate roof leaks from plumbing issues.
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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