Waterproofing
On a flat roof in the Klang Valley, the membrane is doing a hard job: standing water after a downpour, then intense UV once the sun returns. Preparation and detailing at the edges decide how long it lasts.
Starting from RM8 per sqft
Starting Prices
Indicative starting prices from our 2026 market research. Final quotation depends on site condition, scope and materials.
Flat Roof Waterproofing starts from
Starting from RM8 per sqft
Prices start from the stated amount. Final quotation depends on actual site condition, scope, materials, accessibility and installation requirements.
Is this the right service?
What's included
What's included
Pricing Guidance
Indicative starting prices based on current 2026 market research for Kuala Lumpur, Selangor and the Klang Valley. Final quotation depends on actual site condition, scope, materials and installation requirements.
Waterproofing for flat roof, roof terrace or car porch using torch-on membrane or PU liquid membrane.
Duration: 2–5 days for 200–600 sqft
Starting from RM8 per sqft
Prices start from the stated amount. Final quotation depends on actual site condition, scope, materials, accessibility and installation requirements.
Fast Photo Quote
Send them to us directly on WhatsApp and we will assess the Flat Roof Waterproofing work from the pictures before a quotation is prepared.
A wide shot, a close-up and your location are usually enough for us to assess the work.
Cost Factors
Understanding what drives price helps you compare quotes fairly and prepare useful details for assessment.
Priced by area, so the roof size is the main driver.
A sound slab needs cleaning; a failing old membrane must be removed first.
Upstands, parapets, pipe penetrations and outlets each need detailing, and a roof with many of them takes longer than an open slab.
Materials
Materials are chosen based on property type, usage and budget. We use standard trade materials suited to Malaysian homes.
Applied to the specified coverage rate — coverage matters more than the number of coats.
The slab is primed and cracks treated first, because a membrane over a dusty or cracked surface fails at the bond.
Our Process
The slab is cleaned back to a sound surface and any failing existing membrane removed.
Cracks are treated and the surface primed for adhesion.
The system is applied at the specified coverage across the full area.
Upstands, outlets and penetrations are coved and detailed.
Where practical the roof is ponded or observed after rain to confirm performance.
FAQs
Straight answers to the questions customers ask us most about this service.
Two reasons specific to our climate. Standing water after heavy rain sits on any low spot, and then UV exposure degrades the surface once the sun is back. Most failures we see are at edges and outlets rather than in the open field — which is why detailing is where the value is.
Ideally yes. A membrane will tolerate occasional ponding, but a permanent puddle shortens its life significantly. If your slab has a low spot that never dries, correcting the fall with a screed before waterproofing is worth discussing, even though it adds cost.
Only if the existing layer is sound and compatible. If it is blistering, lifting or of unknown type, applying over it means the new system is only as good as the old bond underneath. In that case removal first is the honest recommendation.
The membrane needs to cure before it is walked on or loaded, and the time depends on the system and the weather. We will tell you the specific curing period for your job, and we would rather delay a day than have a fresh membrane damaged.
Problems We Solve
Water damage on a ceiling signals a leak above. Renovix finds the source, repairs the damage and stops it recurring.
View problemA roof leak spreads as fast as it rains. Renovix finds the entry point, waterproofs the roof and stops the leak at its source.
View problemWater leaks hide behind walls and under floors. Renovix finds the source, repairs the leak and stops the damage.
View problemA damp wall is a persistent moisture problem. Renovix finds the reason it stays wet and treats the wall so it dries out for good.
View problemKnowledge Hub
Background reading on cost, materials and what the work involves.
Service Areas
Waterproofing and leakage repair services are available across Kuala Lumpur, Selangor and the wider Klang Valley, including high-rise units and landed homes.
The federal capital — heritage shophouses, mid-century landed estates, older flats and a dense high-rise belt, all within one city.
Malaysia's most developed state — from 1950s Petaling Jaya and royal Klang to fast-growing corridors like Puchong, Kota Damansara and Cyberjaya.
Local housing stock, common problems and practical service notes for neighbourhoods and towns across the Klang Valley.
Not sure if we cover your area? Ask us — we serve most Klang Valley locations.
Get a Free Quote
Share the details of the work, your property type and location, and we will guide the next step.
