
Waterproofing & rope access · Singapore
Stop the leak at its source.
Singapore’s waterproofing and rope-access specialists since 1995. We find the true source, fix it once, and back it with a Certificate of Warranty.
Established
30+ years of experience
Projects completed
across Singapore
Specialists
trained & certified
Certificate of Warranty
on every completed job
Two ways we help
Whatever you’re protecting, start here
Hydroseal serves homeowners and building managers with one team and one point of accountability, waterproofing and IRATA rope access under one roof.

Homeowners
Fix a leak in my home
Condo or landed home, roof, bathroom, balcony or wall. We diagnose the real source and fix it once, with a warranty.
Residential waterproofing
Facility & building managers
Manage a building or facility
Commercial and industrial buildings, BCA façade compliance, rope-access repairs and documented works with minimal tenant disruption.
Commercial & industrialFive core services, one accountable team
Waterproofing and rope access under one roof, so high-level work needs only one contractor, and one warranty.
Not sure what you need?
Describe the problem and we’ll diagnose the cause for free, then recommend the right fix.
Get a free diagnosis →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.
Real Singapore projects, real outcomes
From CBD towers to landed-home roofs, a sample of what we’ve diagnosed, fixed and warrantied.
The specialist Singapore building owners come back to
Experience, dual capability, and accountability in writing, the things that actually decide whether a leak stays fixed.
30+ years, since 1995
One of Singapore’s most experienced waterproofing contractors, 1,000+ projects and the judgement that only decades on site can build.
Waterproofing + IRATA in one
Dual capability under one roof: we both diagnose-and-fix leaks and reach any height by certified rope access, no second contractor to coordinate.
Certificate of Warranty
Every completed job is documented and backed by a no-hassle warranty of 1-10 years, so the result is protected long after we leave.
Free, honest diagnosis
A no-obligation site inspection that traces the real source of the problem, so you fix the cause once, not the symptom repeatedly.
Trusted on Singapore’s commercial & industrial buildings
A selection of the developments, property managers and facilities we’ve worked with across Singapore.




Leaks fixed, buildings protected
Named references from condominiums, MCSTs and commercial clients across Singapore.
“The quality of the workmanship was evident, and the place was left in a spotless condition.”
George Chua
Sunseap Leasing Pte Ltd
“Everyone was very committed to the job, displaying responsibility and professionalism throughout.”
Shariffah Mastura Alsagoff
Singapore Post Limited
“They are prompt in their response, and their positive attitude made the project smooth sailing.”
Jennifer Peh
Savills Property Management Pte Ltd
“Your team’s spontaneous response and attention throughout the project period demonstrated their commitment.”
Laurence Chan
Pandan Valley Condominium
“I would definitely recommend Hydro-Seal as a waterproofing specialist you can rely on.”
Lionel Ng
Villa Des Flores (MCST 973)
“Their attitude towards their work is truly commendable.”
Sally Wong
Pat’s Schoolhouse
Quick answers before you call
Can’t find what you need? Ask us directly, we’re happy to advise with no obligation.
Hydroseal is a Singapore waterproofing and IRATA rope-access contractor established in 1995. We fix roof leaks, bathroom and balcony seepage, external wall and concrete water ingress, and carry out BCA façade inspections and high-level repairs by rope access, for homes, commercial and industrial buildings.
Get a free, no-obligation site inspection
Tell us what’s going wrong and we’ll diagnose the cause, explain your options in plain language, and quote, with no pressure to proceed.
Prefer to talk? Call +65 6289 6811 · We respond within 1 business day.













