Torch-On Membrane Waterproofing in Kuala Lumpur
Car porch and flat roof leaks are common in Kuala Lumpur, especially where old coatings have cracked under years of sun and rain. Our CIDB-registered installation partner prepares the slab, primes it and torches on a new membrane with sealed laps. Inspection and quotation are free across our Kuala Lumpur coverage area, with slots usually within 1 to 3 working days.
Book a free inspection
Torch-on membrane suits the flat roofs on KL shophouses and terrace extensions; on condo roofs the JMB or MC must approve works on common property first.
Common roof problems in Kuala Lumpur
- Decades-old concrete and clay tiles crack, slip and let wind-driven rain through during afternoon storms.
- Shophouse and condo flat roofs pond water where the original screed has settled and the membrane has aged out.
- Valley gutters and box gutters behind parapets clog with leaves and debris, then overflow into the ceiling.
Neighbourhoods we serve in Kuala Lumpur
Bangsar, Taman Tun Dr Ismail, Setapak, Wangsa Maju, Sentul, Segambut, Taman Desa, Kampung Baru, Titiwangsa, Mont Kiara
When a torch-on membrane is the right choice
Torch-on works best on flat or low-slope concrete surfaces that need a durable, thick waterproofing layer. It is often recommended when an old coating has failed, or when a previous membrane has blistered or opened at the laps.
- Car porch roofs leaking at the slab or at the house wall joint
- Shophouse and terrace extension roofs with regular ponding
- Roof slabs under water tanks or mechanical equipment
- Old membranes with open laps, blisters or tears
- Roofs where a coating has cracked and keeps peeling
How torch-on membrane is installed
The membrane itself is only part of the job. Most early failures we see come from poor preparation or rushed laps, so our site team works in a set order.
- Surface check: confirm the roof falls to its drains and mark ponding areas
- Preparation: remove loose old layers, clean and dry the slab, repair cracks and broken edges
- Primer: apply bitumen primer so the membrane bonds to the concrete
- Torching: roll out the sheets, heat-weld them down and fuse every overlap
- Detailing: turn the membrane up walls and parapets, and reinforce drains, corners and pipe penetrations
- Final check and water test, then handover with the 10-year warranty
Indicative prices (2026)
| Job | Price range | Warranty |
|---|---|---|
| Torch-on or liquid membrane waterproofing (flat/concrete roof, slab, car porch) | RM7 – RM9 per sq ft | 10 years |
| Minor roof leak repair (small area) | RM350 – RM1,800 | Up to 1 year workmanship |
| 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
What is the torch-on membrane price in Kuala Lumpur?
The indicative price in Kuala Lumpur is RM7 to RM9 per sq ft, with a 10-year warranty. The final price for your Kuala Lumpur roof is confirmed after the free inspection and measurement.
How fast can you start torch-on works in Kuala Lumpur?
Inspection slots in Kuala Lumpur are usually available within 1 to 3 working days. Once you confirm the quote, our Kuala Lumpur site team schedules works in the next suitable dry weather window.
Do you waterproof car porches in Kuala Lumpur?
Yes. Car porch roofs are one of the most common torch-on jobs we do in Kuala Lumpur, including the joint where the porch meets the house wall.
Do you cover Bangsar, Setapak and Wangsa Maju in Kuala Lumpur?
Yes. Our central team covers all of Kuala Lumpur, including Bangsar, Setapak, Wangsa Maju, Sentul, Taman Desa and Taman Tun Dr Ismail. The roof inspection and on-the-spot quotation are free within KL. Send your address, a short description and a few photos through the booking form and we will confirm a slot.
How fast can a roofer come to my house in Kuala Lumpur?
A free inspection in Kuala Lumpur is usually arranged within 1–3 working days of booking. During the April and October inter-monsoon storms and the year-end rainy months, slots fill faster, so book early and attach photos or a video. If water is actively entering, tell us so we can prioritise a temporary measure.
How much is torch-on membrane waterproofing in Malaysia?
Torch-on membrane waterproofing in Malaysia is indicatively RM7 to RM9 per sq ft in 2026, with a 10-year warranty. A 300 sq ft car porch would therefore cost roughly RM2,100 to RM2,700. The exact price is confirmed after our free inspection, depending on preparation, removal of old layers, upstands and access.
What is torch-on membrane?
Torch-on membrane is a reinforced bitumen waterproofing sheet. It is laid on a primed concrete surface and heated with a gas torch so it bonds to the slab, and each overlap is fused to the next sheet. The result is a thick, continuous waterproof layer, commonly used on flat roofs and car porches in Malaysia.
How long does torch-on membrane last?
Our torch-on membrane works carry a 10-year warranty. Real-world life depends on surface preparation, drainage and use. Roofs with blocked drains, constant ponding or frequent foot traffic wear faster, while a well-drained porch with clear outlets performs best. A simple post-monsoon check helps keep it in good shape.
Other roofing services in Kuala Lumpur
Nearby areas
Petaling Jaya, Shah Alam, Subang Jaya, Puchong, Cheras, Klang