Waterproofing Works

Comprehensive waterproofing solutions for roofs, bathrooms, basements and more — protecting Singapore properties from water damage.

Our Expertise

Singapore's Trusted Waterproofing Specialist

With Singapore’s tropical climate averaging over 2,340mm of annual rainfall, waterproofing is not optional — it’s essential. At Rf Construction, we bring over 15 years of hands-on experience in diagnosing and resolving every type of water leakage issue, from minor bathroom seepage to large-scale commercial roof waterproofing. Our BCA-registered team uses industry-leading materials and proven techniques to deliver lasting results.

10

Year Warranty

6+

Grouting Methods

500+

Projects Completed

15+

Years Experience

What We Do

Types of Waterproofing We Provide

Roof Waterproofing

Protect your flat or pitched roof from water ingress with torch-on membranes, liquid-applied coatings, and cementitious systems. Ideal for HDB rooftops, commercial buildings, and RC flat roofs exposed to Singapore’s heavy rainfall.

Bathroom & Wet Area Waterproofing

Comprehensive waterproofing for bathrooms, kitchens, balconies, and other wet areas. We apply multi-layer membrane systems with proper detailing at joints, corners, and pipe penetrations to prevent seepage to lower floors.

Basement & Below-Grade Waterproofing

Keep underground structures dry with negative and positive-side waterproofing systems. We use crystalline technology, cementitious coatings, and injection grouting to seal basements, car parks, and lift pits against hydrostatic pressure.

Techniques

Waterproofing Methods We Use

Cementitious Waterproofing

A rigid waterproofing method using cement-based coatings applied to concrete surfaces. Best for internal wet areas like bathrooms and water tanks.

Liquid Membrane Waterproofing

Flexible liquid coatings (polyurethane or acrylic) applied by spray, roller, or trowel. Forms a seamless, elastic barrier ideal for roofs and balconies.

Bituminous Membrane (Torch-On)

Modified bitumen sheets heat-welded to surfaces. Excellent for flat roofs and podium decks, offering superior durability and UV resistance.

Polyurethane (PU) Injection Grouting

High-pressure injection of PU resin into cracks and joints to stop active leaks. Fast-setting and ideal for emergency water ingress situations.

Crystalline Waterproofing

Penetrating crystalline compounds that react with moisture to seal capillary pores in concrete. Self-healing technology that activates with water.

Nano-Technology Coating

Advanced nano-particle coatings that penetrate deep into concrete pores, providing invisible waterproofing without altering surface appearance.

Where We Apply Waterproofing

Our waterproofing solutions cover every area of your property

RC Flat Roofs & Pitched Roofs

Bathrooms & Toilets

Balconies & Terraces

Kitchens & Wet Areas

Basements & Car Parks

Swimming Pools & Water Tanks

Lift Pits & Service Ducts

External Walls & Facades

Podium Decks & Planter Boxes

Expansion Joints & Construction Joints

Frequently Asked Questions

Find answers to common questions about our waterproofing and construction services.

How long does waterproofing last in Singapore's climate?

Quality waterproofing systems typically last 10–15 years depending on the method used, surface exposure, and maintenance. We offer warranties of up to 10 years on our waterproofing works.

Yes! We offer non-invasive (no-hacking) waterproofing solutions using injection grouting and nano-technology coatings. These methods seal leaks from the surface without removing existing tiles or finishes.

Costs vary depending on the area, method, and severity of the issue. Bathroom waterproofing typically ranges from $800–$2,500, while roof waterproofing can range from $5–$15 per sq ft. Contact us for a free, no-obligation quote.

Common signs include water stains on ceilings, peeling paint, damp walls, mould growth, musty odours, and visible cracks in concrete. If you notice any of these, schedule a free inspection with our team.

Absolutely. We serve HDB flats, condominiums, landed houses, commercial buildings, industrial facilities, and public infrastructure across Singapore.

Waterproofing Works

Comprehensive waterproofing solutions for roofs, bathrooms, basements and more — protecting Singapore properties from water damage.