Toilet & Bathroom Waterproofing in Kajang
Ceiling stains under bathrooms are a common problem in double-storey homes and condos across Kajang. Our technician checks the floor trap, pipes and tiles, explains the real cause and quotes on the spot. Inspection and quotation are free in our Selangor coverage area, usually within 1 to 3 working days.
Book a free inspection
Bathroom leaks in older Kajang terraces usually need a full waterproofing re-do at RM2,500 – RM6,000 per bathroom.
Common roof problems in Kajang
- Leaves from surrounding greenery block gutters and valley gutters, causing overflow into ceilings.
- Ridge mortar on 1990s terraces has cracked and loosened under sun and rain.
- Termites damage timber trusses in older homes, causing sagging and displaced tiles.
Neighbourhoods we serve in Kajang
Sungai Chua, Saujana Impian, Taman Prima Saujana, Taman Kajang Utama, Country Heights, Jalan Reko, Bandar Sungai Long
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 Kajang?
In Kajang, bathroom waterproofing is indicatively RM2,500 to RM6,000 per bathroom, including hacking and re-tiling, with a 5-year warranty. Your Kajang price is confirmed after the free inspection.
Do you waterproof condo bathrooms in Kajang?
Yes. We waterproof bathrooms in Kajang condominiums and apartments, and coordinate with management where needed.
How long will my bathroom in Kajang be out of use?
Most bathroom waterproofing jobs in Kajang take three to five working days, including a flood test before re-tiling.
Do you cover Sungai Long, Saujana Impian and Kajang town?
Yes. Kajang is covered by our central team, including Kajang town, Sungai Chua, Saujana Impian, Taman Prima Saujana, Taman Kajang Utama, Country Heights and Bandar Sungai Long. Roof inspections and quotations are free. Book online and send a few photos of the problem.
How fast can a roofer come to Kajang?
Free inspections in Kajang are usually arranged within 1–3 working days. In storm season, slots go quickly, so book when you first see a stain. Photos or videos of the leak and the gutters nearby help our technician prepare and give you an accurate quote on the spot.
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 Kajang
