Four jobs, one method: find where the water gets in, prepare the substrate properly, then apply the membrane made for that exposure — UV and ponding on roofs, steam on wet rooms, immersion in pools, ground pressure below grade. Crews cover the south and centre of the island, from Canggu and the Bukit up to Ubud.
Flat roof leak repair and re-waterproofing. Polyurethane, bitumen, cementitious.
Full details →Wet area membranes, shower waterproofing, tile adhesion failure remediation.
Full details →Pool leak detection, dye testing, crack injection, shell re-waterproofing.
Full details →Crystalline systems, drainage boards, injection grouting.
Full details →Flat concrete roofs, roof terraces and concrete gutters are where most Bali leaks start. We trace the leak to the drain collar, parapet junction, crack or failed membrane, strip what has failed and apply PU liquid, torch-on bitumen or cementitious membrane. PU re-waterproofing costs IDR 260,000–420,000 per m² with substrate prep; a walkable terrace membrane IDR 320,000–480,000 per m². Roof waterproofing details and 2026 membrane prices →
A flexible membrane laid without joints over the whole floor and taken above the shower spray height on the walls, a coved floor-to-wall junction, and drains and pipes sealed into the system — then a flood test before tiling where access allows. New-build wet areas cost IDR 2,500,000–4,500,000 per bathroom; remedial strip-and-re-membrane IDR 6,500,000–12,000,000, with re-tiling as a separate line in the quote. Bathroom waterproofing details →
When tiles let go across the shell or water loss keeps coming back, the membrane behind the finish has failed. We check the water loss first, then drain, strip, treat cracks and re-line the shell with PU or reinforced cementitious membrane before re-tiling in Sukabumi stone, mosaic or ceramic. Shell membrane IDR 280,000–450,000 per m² as a guide. Pool re-lining details →
Villa basements, sunken rooms and retaining walls on sloping plots need negative-side systems — crystalline treatment inside the concrete, drainage behind the wall and injection for active cracks — not a coat of paint on the inside. Crystalline treatment IDR 280,000–420,000 per m²; crack injection IDR 650,000–1,200,000 per crack. Basement and retaining wall details →
A stain on the ceiling below a bathroom can come from the roof, and a damp wall can be a pool, a gutter or ground pressure. Start with photos on WhatsApp or a leak inspection (IDR 500,000–1,000,000, credited to the repair). All guide rates are on the waterproofing price list.