Our bubble sweep and adjustable aluminium sill combination is built to last. Technologically advanced all-composite substrates,
synthetic caps and nosing mean no rotting, warping or deterioration over time. Screw covers keep debris out for easy adjustability
anytime. Integrated seals stop water and air. Our heavy duty low temperature bubble sweeps wont freeze, and are engineered to withstand the wear and tear of everyday use while maintaining a tight fit and energy efficiency.