Renlon Information

Renlon is a specialist contractor delivering structural waterproofing, remedial works, roofing and building condition assessment across London and the surrounding regions. For more than 45 years, we have supported main contractors, developers, architects, surveyors and property professionals from initial investigation and design through to installation and aftercare. Our core capabilities include: • Structural waterproofing, including Type A and Type C systems • Basement, podium deck, lift-pit and external waterproofing • Water-ingress investigation and leak-containment systems • Ground-gas protection • Condition surveys, testing and technical reporting • Concrete repair and specialist remedial works • RenStrength structural reinforcement systems • Specialist roofing, including pitched, flat, liquid-applied, green and blue roof systems Our roofing capability covers new roofs, re-roofing and repairs, traditional built-up felt systems, cold-applied liquid waterproofing, roof overlays, leadwork, roof condition surveys and reporting, drone surveys and leak investigation. We install systems from established manufacturers including Polyroof, Sika, Lancastria, Mapei and Proteus, with specifications selected to suit the substrate, site conditions and required guarantee period. Our qualified surveyors and experienced installation teams focus on practical, compliant and buildable solutions, with clear accountability from survey through to completion. Renlon carries £10m Professional Indemnity insurance and provides its own 10-year guarantee on qualifying works. Planning a waterproofing, remedial or roofing project? Visit our website or contact the Renlon team to discuss your requirements.