Core service
Roof Waterproofing & Repair in Singapore
Hydroseal waterproofs and repairs roofs across Singapore, metal, reinforced-concrete and tiled, using torch-on membrane, protective coatings, crack injection and surface restoration. We trace the leak to its source, treat the cause, and back the work with a Certificate of Warranty of up to 10 years.
- Est. 1995
- 1,000+ projects
- IRATA-certified
- BCA-registered
- bizSafe
- Up to 10-yr warranty
Roof problems we fix
Metal roofs (zinc, aluminium-composite, steel-alloy)
Vulnerable to corrosion, loose screws and joint failures. We re-seal seams and fasteners and apply protective coatings.
RC flat roofs
Prone to ponding, hairline cracks and membrane deterioration. We restore fall, inject cracks and re-membrane or re-coat.
Tiled pitched roofs
Cracked tiles, failed underlay and ridge leaks on landed homes, sealed, coated and restored, often by rope access.
Recurring ceiling stains
When the stain keeps coming back, the real entry point is usually elsewhere on the roof. We find it before we fix it.
Roof waterproofing methods
Four proven approaches, chosen to suit your roof type and condition.
Torch-on membrane
Heat-bonded bituminous membrane, a robust, long-life waterproofing layer for flat RC roofs and decks.
Protective re-coating
Liquid-applied and reflective coatings that re-seal metal and concrete roofs and extend their service life.
Crack & PU injection
Polyurethane injected into cracks and joints to stop active leaks without major hacking.
Surface restoration
Seam re-sealing, fastener treatment, ponding correction and membrane replacement where needed.
How we work
One clear process, start to warranty
The same disciplined method on every job, so you always know what happens next and why.
- 01
Diagnose
A free, no-obligation site inspection. We trace the water path to its true source, not just where the stain shows, using moisture mapping and, where needed, rope-access close-up survey.
- 02
Recommend
A clear written recommendation matched to your building, budget and timeline: the method, why it suits Singapore’s climate, what it costs, and how long it lasts.
- 03
Execute
Our trained crews carry out the works with minimal disruption, surface preparation, treatment and protective coating done to specification, with safety and tidiness on site.
- 04
Document
You receive a photographic record of the works and, for façade inspections, a full condition report, the documentation facility managers need for BCA and building records.
- 05
Warranty
Every completed project is backed by a Certificate of Warranty, from 1 to 10 years depending on the system, so the result is protected long after we leave.
Recent related projects
Common questions
Straight answers to what homeowners and building managers ask us most.
If the roof structure is sound and the problem is the waterproofing layer, failed membrane, open seams, surface cracks, re-coating or re-membraning is the right, cheaper fix. Full re-roofing is only needed when the deck or sheets themselves are failing. Our free inspection tells you which situation you are in, with photos.
Free quote
Get a free quote for roof waterproofing
Tell us about your property and the problem. We’ll diagnose the cause and quote, no obligation.
- Free, no-obligation site inspection
- Certificate of Warranty on completed work
- IRATA-certified, licensed & fully insured
- We respond within 1 business day.
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