Roof, terrace and balcony waterproofing

One of our main areas of work

Waterproofing is one of our main areas of work. Our teams waterproof pools, tanks and ponds, and we bring the same care to roofs and terraces. Tropical sun, heavy rain and heat movement are hard on flat surfaces. That is why we look at the whole surface, not just the visible crack.

• Flat concrete roofs and roof terraces
• Terraces and pool decks over rooms or parking
• Balconies and walkways
• Slabs and upstands, including junctions with walls, doors and drains

Systems we use

We choose the type of system for each surface after inspection.

If a terrace is tiled, we tell you whether waterproofing can go over the existing surface or the old finish needs to come up first.

• Flexible coatings for exposed roofs and terraces, which move with the slab as it heats and cools
• Rigid cementitious waterproofing where the base does not move, for example under new tiles or a screed
• Careful detailing at drains, pipe penetrations, upstands and joints, where most leaks start

Inspection first

Before we propose anything, we inspect the roof or terrace and, where we can, the rooms beneath. We look at falls and standing water, drains and outlets, cracks, joints, earlier repairs and the condition of the existing surface. Water often travels before it shows, so the stain inside is not always directly below the leak.

Working on occupied buildings

Villas and hotels usually stay in use during roof and terrace work. With your villa manager or hotel engineer, we agree access, protection of furniture and planting, and quiet hours, and we plan around the weather. The programme is agreed for the individual project. Where a terrace runs to a pool, we can combine the work with pool repairs or deck care.

What to send for a first discussion

For a first discussion and a quotation, send us:

• Photos of the roof, terrace or balcony, and of any stains or damp inside
• The property location in Phuket or elsewhere in Thailand
• The approximate area and the current surface: bare concrete, tiles, an old coating or something else
• Any past repairs, and when the leaks appear, for example after heavy rain