Foundation, flat roof, terrace and parapet wall waterproofing across both sides of the island — manufacturer-certified Henry Blueskin, Henry CM100, Sikalastic Roof Pro and Soprema systems.

Most waterproofing failures in Sint Maarten and St. Martin aren't material failures — they're installation failures. The product was fine. Someone applied it wrong, skipped a primer, used the wrong sealant, or rushed the cure. Premier Roofing & Waterproofing Systems is a certified applicator for Henry Blueskin, Henry CM100, Sikalastic Roof Pro, Sika SikaProof, and Soprema membranes. Every system we install is registered with the manufacturer and carries the real warranty — not a verbal promise.
We waterproof concrete homes, foundations, flat roofs, terraces, parapet walls, planters, swimming pool surrounds, and cistern interiors across Philipsburg, Cole Bay, Simpson Bay, Cupecoy, Maho, Marigot, Grand Case, Orient Bay and Terres Basses. If water can reach it, we can stop it.
Get a Free SXM Waterproofing QuoteHenry, Sika, Soprema and Tremco certified applicator — written warranties on every install.
Most SXM homes are concrete. We understand rebar corrosion, salt-air penetration, and how to stop them at the source.
Soprema, Sika and Henry systems carry up to 20-year manufacturer warranties when installed to spec.
Same systems we installed on Belmond Cap Juluca and Four Seasons Anguilla — applied to your SXM property.
Liquid-applied and membrane systems for flat and low-slope concrete roofs — Sikalastic Roof Pro, Soprema 80-mil PVC.
Henry Blueskin peel-and-stick — stops moisture before it reaches your block walls.
Henry CM100 cementitious waterproofing for terraces, balconies, planter boxes and rooftop decks.
The #1 leak source on flat concrete roofs — flashed and waterproofed properly.
Liquid-applied membranes for pool surrounds and pool deck waterproofing.
Potable-water-safe waterproofing — properly sealed to manufacturer specification.