25/03/2026
Basement waterproofing shouldn't be a gamble.
Our BS25 Performance Solution provides a professional, 4-step pathway to NCC compliance, following the strict ABCB process and developed with reference to BS 8102:2022—the international benchmark for structural waterproofing.
Every solution is prepared by a CSSW-qualified specialist (Certificated Surveyor in Structural Waterproofing), ensuring your project is backed by expert risk assessment and technical proficiency.
We take you from brief to approval:
1️⃣ PBDB: We define the scope and regulatory objectives.
2️⃣ Risk Assessment & Outline Design: We identify hydrostatic and site-specific failure points, developed with reference to BS 8102 protection grades.
3️⃣ Performance Specification: Technical documentation of the exact materials and systems required to meet the performance criteria.
4️⃣ Final Report: Your definitive "Evidence of Suitability" for the certifier, authored by a certified CSSW specialist.
Don't risk water ingress or building delays. Get the CSSW-backed performance solution for your next basement project.