Aluminium Doors are strong & durable products manufactured from aluminium sections which give structurally sound doors for your peace of mind. Warmth & Comfort are benefits enjoyed by homeowners because our doors are thermally efficient and contribute to a reduction in the cost of heating bills. A versatile range of profiles can provide many solutions for residential and light commercial applications. At Rainbow we use an innovative polyamide thermal break technology which creates a barrier between the cold air outside and the warm air inside. This technology significantly reduces thermal transmittance and enhances the overall uValue of a product.