William and team did a good job resolving a leak in my roof. Despite the unpredictable weather, they resolved the issue in 2 days and the price was also highly competitive. William was also very responsible and was present onsite to personally oversee the waterproofing works.
Waterproofing in Singapore, ranked by real evidence
157 businesses · Honestfix score · checked 20 Sep 2026
How do I find the best waterproofing company in Singapore?
Start with proof, not promises. Check the business is a registered company. BCA registration applies to structural work, so ask whether the job needs it. Read its recent reviews for finished jobs like yours, not just a star average. Get a written quote that names the job and the call-out fee, then call two businesses, not one. The 157 waterproofing companies below are ordered by that evidence: what is on record, with the date it was checked. Nobody pays to be here or to move up.
Reviews describe a waterproofing firm handling roof and balcony leaks, wall seepage, ceiling leaks and bathrooms.
Reviews are mostly about bathroom waterproofing without hacking, often after HDB recommended them, with several jobs finished in half a day.
Reviews describe waterproofing for bathrooms, roofs, windows and wall seepage.Reviews describe waterproofing for bathrooms, roofs, windows and wall seepage, plus an office reinstatement, with Kelvin named most often.
Reviews keep naming Stephen: bathroom and ceiling leaks, wall seepage and roofs, often with a survey and quote soon after the call.
Roof leaks come up most (9 reviews), then bathrooms (5), roof and balcony work (4) and ceilings (3), and several customers describe honest advice.
Reviews centre on Marc and his crew.Reviews centre on Marc and his crew, with Ohid named as site supervisor, for roof leak repair and re-roofing, with waterproofing and painting.
Reviews name Joseph, who does the site inspections, for toilet leaks, ceiling cracks and roof terraces.
Highly recommend the toilet warranty! I’ve had mine since 2022, and when a leak happened recently, Eddie settled it within a week. Professional, fast diagnosis, and great service. Don't wait for a leak to happen—get the peace of mind now. Thanks, Eddie!
Reviews describe a waterproofing firm that tracks down hard-to-find leaks, from ceiling seepage to roof, wall and grouting jobs, with Terry and Wei Jie each named by several customers.
Accepts urgent enquiries. Confirm availability and any additional charges.
Reviews name Anik, who surveys the leak and sends his team, for ceiling, bay window and kitchen pipe leaks.
Reviews are mostly roof leaks, RC slabs, polycarbonate and ceiling spalling.Reviews are mostly roof leaks, RC slabs, polycarbonate and ceiling spalling, with Sebastian and Max named for inspecting, photographing the problem and explaining the fix.
Bathrooms come up most (4 reviews), then wall seepage (2), plus roof leaks.Bathrooms come up most (4 reviews), then wall seepage (2), plus roof leaks, with Swan and Terence named for inspecting and explaining the options.
Reviews describe zip blinds, aluminium ceiling panels, awnings, polycarbonate awnings and full roof replacements for homes.
Customers describe good service and good quality, and say thank you to the team. Registered as a business in Singapore since 2026, it holds a 5.0 rating from 11 Google reviews.
Contact details not on record.
Reviews describe a laptop repair shop, mostly for MacBooks, fixing water and coffee spills, logic boards, batteries and keyboards.
Reviews describe a fabrication and installation firm that builds pergolas, awnings, roof and glass work.
Installed a glass awning at the entrance of our shophouse. The team recommended laminated safety glass which was the right call sturdy and looks premium. The installation was clean and the silicone finishing was neat. Got several compliments from neighbours after. Very satisfied.
Reviews describe roof leak repairs, gutter cleaning and outside wall painting on houses.Reviews describe roof leak repairs, gutter cleaning and outside wall painting on houses, with Sujan and his team named for punctual, tidy, clearly explained work.
Customers mention umbrellas, awnings and shades.Customers mention umbrellas, awnings and shades, including a linkway shelter at an estate entrance and shades for commercial use.
Customers mention metal roofs, awnings, roof replacement with waterproofing and leak repair.
Top-notch service with great attention to detail.
Reviews describe an office offering many services, with a one-stop solution for businesses. Customers also mention a resting area downstairs for guests.
Customers mention awnings, zip track blinds, panoramic blinds and invisible grilles.Customers mention awnings, zip track blinds, panoramic blinds and invisible grilles, with Cheong named for patient, knowledgeable advice.
Reviews name Sumon as the tradesman on roof and patio leak repairs, water heater replacement, retiling and kitchen countertop work.
Reviews describe shelters and aluminium composite shades.Reviews describe shelters and aluminium composite shades, with Bob named for patient guidance and quick after-sales help.
Accepts urgent enquiries. Confirm availability and any additional charges.
Customers mention ceiling and inter-floor leaks, a balcony leak into the apartment below and toilet ceiling leaks solved with PU grouting.
Reviews show a family-run awning and blinds business.Reviews show a family-run awning and blinds business, with roof terrace awnings, roller blinds and balcony installations.
Customers mention roof leaks and waterproofing for houses.Customers mention roof leaks and waterproofing for houses, with praise for experienced workers who find the cause of the leak.
Good service
Of 22 written reviews, 8 say the problem was fixed, 6 say the team came quickly, 5 used the business again and 3 knew the price first.
Customers mention renovation, roofing and ceiling repairs, tiles and fans.Customers mention renovation, roofing and ceiling repairs, tiles and fans, with practical advice on options.
Reviews describe plumbing and small handyman jobs as much as waterproofing: taps, sink leaks, water heaters, lights and roof leaks, with Shamol named most often.
Did waterproofing at the WC and Bathroom as downstairs neighbour complained of leaks due to the old age of the place. GCG did it very fast. a few months past, and there is no issues after the work was done. Recommend to give a try.
Reviews mention waterproofing a shower and advice on a water leak.Reviews mention waterproofing a shower and advice on a water leak, with the team called professional, knowledgeable and friendly.
Reviews name Ken as the person who assesses and quotes roof leaks, wall seepage and facade sealing, with repeat customers going back over a decade.
Accepts urgent enquiries. Confirm availability and any additional charges.
Reviews describe mould removal and treatment in homes, often followed by anti-mould painting, plus soot cleaning and disinfection.
Visit website ↗Contact details not on record.
Engaged their services to do the railings, waterproofing and tiling for my balconies. Though it is not a big project, the 2 brothers (Aaron and Ravits) made an effort to explain and check on the progress during the renovation. All their workers were great in their scope of duties especially the China man who did the waterproofing and tiling. He is a very experience guy who knows his job well and make sure that everything is in good order. Ravits also gave me some advice on certain parts of my house that do not require to fix yet as these can be done 2 years later in order to save the money for now. I am very happy and satisfied with the renovations. I will definitely recommend your company to anyone who needs to do any renovations. Thank you guys for a smooth and job well done! Thumbs Up !
Reviews describe a roofing and waterproofing contractor called in for roof leaks.Reviews describe a roofing and waterproofing contractor called in for roof leaks, including a repeat customer of several years.
Of 5 written reviews, 3 say the problem was fixed and 1 says the business came quickly. The written reviews are all five stars and mostly call the price reasonable.
Listing data checked 20 Sep 2026.How Honestfix works