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Core service

Concrete Repair & Waterproofing in Singapore

Hydroseal repairs and waterproofs concrete structures across Singapore, treating cracks, spalling and water ingress in slabs, decks, planters and walls. We restore the concrete, then seal it with cementitious, crystalline or PU systems and back the work with a warranty.

Hydroseal technician applying waterproofing to a concrete deck at a Singapore waterfront structure
  • Est. 1995
  • 1,000+ projects
  • IRATA-certified
  • BCA-registered
  • bizSafe
  • Up to 10-yr warranty
Concrete is strong but not naturally waterproof, and once water reaches the steel reinforcement, it rusts, expands and breaks the concrete away (spalling). Repairing concrete properly means treating the cause, restoring the structure, and sealing it against future ingress.

Concrete problems we treat

Cracks & water ingress

Active and dormant cracks in slabs, decks and walls, sealed by injection and surface systems.

Spalling concrete

Where rusting rebar has cracked and pushed off the concrete cover, we treat the steel and reinstate the surface.

Decks, planters & basements

Trafficable and buried concrete that must hold water out (or in) under load and movement.

Construction-joint leaks

Cold joints and movement joints that weep, sealed with injection and jointing systems.

Concrete repair & waterproofing methods

PU & epoxy injection

Resin injection to seal cracks and voids and re-bond the concrete against water.

Cementitious coating

Cement-based waterproof coatings that bond to concrete for slabs, planters and wet areas.

Crystalline waterproofing

Reactive crystalline systems that grow into the concrete’s pores and self-seal fine cracks.

Spalling & structural repair

Rebar treatment and patch repair to restore spalled concrete before waterproofing over it.

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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

Common questions

Straight answers to what homeowners and building managers ask us most.

Spalling happens when water and chlorides reach the steel reinforcement inside concrete; the steel rusts, expands and cracks the concrete cover off. It can be repaired: we expose and treat the corroded rebar, reinstate the concrete with a repair mortar, and apply a waterproofing system so it does not recur.

Free quote

Get a free quote for concrete repair

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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