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Cavity Closers

Cavity Closers – Insulation & Damp Protection At DBM, we supply universal cavity closers designed to eliminate damp and cold bridging around doors, windows, and sills. Cavity closers provide an effective thermal break, helping to improve energy efficiency while also offering long-term damp proofing. Easy to install, they are suitable for a wide range of cavity sizes and construction projects. A reliable choice for builders and contractors, cavity closers ensure compliance with building regulations while delivering a clean, professional finish.