Phoenix team spraying a waterproofing membrane on a Colombo rooftop

Waterproofing.

Stop leaks at the source, for the long term.

Trusted at Bandaranaike International Airport, One Galle Face Residence and Cinnamon Garden Residence.

Leaks and seepage rarely stay small. They damage finishes, electrical systems and structure, and they disrupt the people who use your building. We trace the true source, select the right system for each surface and apply it with tested products, following the manufacturer's specifications.

Waterproofing is a protective barrier that stops water getting into a structure, or out of one, such as a swimming pool. We use proven systems, including sprayed-on polyurea membranes, and name the exact products in your quotation.

  • 25+ year waterproofing guarantee
  • Fully insured
  • Directors and a dedicated supervisor on every project
  • Rooftops, podiums and wet areas, with rope access for external walls.

Signs you need waterproofing.

  • Damp patches or stains on ceilings and walls after rain.
  • Peeling paint, bubbling plaster or white salt deposits on walls.
  • Mould or a musty smell in rooms, basements or car parks.
  • Water pooling on roofs, terraces or podium decks.
  • Leaks around drains, pipes, upstands or expansion joints.

Scope of work.

  • Rooftop and concrete slab waterproofing
  • Sprayed-on polyurea membranes
  • Damp proofing
  • Roof leak detection and repair
  • Terraces, balconies and rooftop flower troughs
  • Bathrooms and wet areas
  • Swimming pools
  • Car park ramps and podium decks
  • External wall waterproofing
  • Weak concrete rectification

How we do it.

  1. Inspect

    We trace the real entry point, not just the damp patch.

  2. Specify

    We choose a system that suits the surface, its movement and its exposure to sun and standing water.

  3. Prepare

    We clean and repair the surface, treat cracks and weak concrete, and prime where the system requires it.

  4. Apply and detail

    We apply the system to the manufacturer's specification and seal every drain, upstand, junction and joint.

  5. Check and hand over

    We inspect the finished work, hand over a clean site and confirm your guarantee in writing.

Every job starts with a free site assessment and a written quotation.

Get a free quote

Why leaks happen, and how we stop them.

A leak needs three things: water, a gap and a force that drives the water through, such as gravity, wind or pressure. Patching the visible damp spot rarely works, because the water often enters somewhere else.

We find the real entry point, choose a barrier system that suits the surface and its exposure, and detail every junction, drain and upstand so the whole area is sealed, not just the visible patch.

The best time to waterproof is in dry weather, before the monsoon arrives.

Selected projects.

Trusted by

  • Bandaranaike International Airport
  • One Galle Face Residence
  • Cinnamon Garden Residence
  • Dialog Head Office
  • Survey Department
  • Monarch Residence
  • Hemas Hospitals
  • 25+ year waterproofing guarantee

    The exact period for your system is stated in your quotation.

  • Fully insured

    Every project is covered by third-party insurance.

Frequently asked questions.

How long does waterproofing last?

It depends on the system and how exposed the surface is. After the inspection we recommend the right system and state the guarantee period in your quotation.

Can you work while the building is in use?

Yes. We plan the work in sections and agree timings with you, so occupants and operations are disturbed as little as possible.

Do you inspect before quoting?

Yes. A specialist visits the site, identifies the cause of the problem and then prepares a written quotation.

What guarantee do you give on waterproofing?

A written guarantee of 25+ years. The exact period for your system is stated in your quotation.

When is the best time to waterproof?

In dry weather, before the monsoon. If you already have a leak, contact us straight away and we will advise on a temporary and a permanent solution.

Explore other services.

Need expert support?

Talk to our specialists about your building. We'll assess the site and send a clear, written quotation, with no obligation.

Urgent leak? Call +94 77 036 2222.

Get a free quote