We are a leading waterproofing company among the many accredited waterproofing contractors companies in Singapore. We offer various waterproofing solutions in Singapore with non-obligatory waterproofing onsite analysis and consultation. As an experienced waterproofing company in Singapore, we pride ourselves in ensuring that we keep up with relevant technologies and continue to offer consistent waterproofing solutions to our clients over the years.
Still experiencing
water leakage at home?
Are you paying more
than what is required?
OUR PROMISE
Long Lasting Results
Quality Workmanship
Comprehensive Warranty Coverage
Accurate & Complete Diagnosis
OUR SERVICES
Waterproofing & Repainting Specialist since 1999
Roof
Waterproofing Works
Our experts at ProSeal Contracts are able to repair and install roofs from a combination of some materials such as tar, asphalt, gravel, rubber, metal, shingles.
Wet Area
Waterproofing Works
We only use high quality materials so when you engage us to do toilet and bathroom waterproofing, you are guaranteed the long lasting and quality results.
Water Leakage
Repair
Ceiling leakages are common, especially in older flats. Ceiling leaks occur when water seeps through the walls from the unit above your ceiling.
Rope
Access System
Industrial Rope Access is an internationally recognized profession that involves the use of ropework to reach hard-to-access places…
PU
Grouting
The quality materials used by us provides a durable, double layered defences from extreme heat and cold conditions ensuring lasting protection.
OUR PARTNERS
What Our Client Says about Us
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Frequently Asked Questions
What does a waterproofing specialist in Singapore do?
A waterproofing specialist in Singapore inspects, seals, and repairs building areas exposed to water (roofs, balconies, bathrooms, swimming pools, and external walls) using membranes, PU grouting, and protective coatings. The trade falls under BCA workhead CR13 and targets tropical-climate failures like heavy rainfall ponding, concrete cracking, and ceiling leaks common in HDB flats, condos, and commercial buildings.
How do I choose a waterproofing contractor in Singapore?
Check three things first: BCA registration under workhead CR13 (verifiable on the BCA Directory at bca.gov.sg), a written warranty covering both materials and workmanship, and approved brands like Davco, Mapei, Ardex, or Sika. Ask for verifiable past project references, a free onsite diagnosis before quoting, and a fixed-price scope so costs don’t balloon mid-job.
Is Proseal a BCA-certified waterproofing company?
Yes. Proseal Contracts Pte Ltd (UEN 201106650R) is BCA-registered as a Singapore building contractor and displays its BCA certification on its website. You can verify the registration directly on the official BCA Directory at bca.gov.sg. Proseal renews its workhead registration under BCA’s Contractors Registration System (CRS), the national registry that governs waterproofing contractors in Singapore.
How long has Proseal been doing waterproofing in Singapore?
Proseal Contracts Pte Ltd has provided waterproofing services in Singapore since 1999, with over 26 years of continuous operation as of 2026. The company handles roof and wet-area waterproofing, water leakage repair, PU grouting, concrete repair, and rope-access work across HDB flats, private condos, and commercial buildings, using approved materials from Davco, Mapei, Ardex, and KST.
What's the difference between waterproofing and water leakage repair?
Waterproofing is preventive: applying membranes and coatings before water damage starts, usually during construction or renovation. Water leakage repair is corrective, fixing an active leak after it appears through PU grouting, crack sealing, or pipe repair. Both fall under BCA workhead CR13 in Singapore. Most properties need waterproofing every 5 to 10 years; leakage repair is only triggered when symptoms appear.
How long does waterproofing last in Singapore's tropical climate?
Most waterproofing systems in Singapore last 5 to 10 years, depending on membrane type, exposure, and workmanship. Roof waterproofing under direct sun degrades faster than indoor wet-area systems. Heat-reflective acrylic coatings usually need recoating every 5 to 7 years; cementitious membranes and PU systems can last 8 to 10 years. BCA-registered contractors typically warranty new waterproofing work for 5 to 10 years.