At 23 Doors, we specialise in supplying bespoke aluminium doors, windows and roof systems—tailored to suit the Manx climate, built to last, and designed to look incredible.
Aluminium bifold doors, sliding doors & windows crafted for strength, slimlines, and thermal efficiency.
Local Isle of Man service: manufacture to your specs, delivered direct and installed with care.
Made from premium Alunet architectural aluminium systems with outstanding durability, security, and low maintenance.
Our ultra-slim aluminium bifolding doors are manufactured using the renowned Alunet profile and offers market leading performance and aesthetics, whilst still being exceptionally strong and durable.
Our aluminium frames feature a 25mm sightline providing some of the slimmest sliding doors available on the market.
We can help you realise your design and build project, by giving you access to a spectacular range of aluminium windows that will perfectly match your slimline sliding and bifolding doors.
We only use top-tier aluminium profiles, powder-coated finishes, and premium hardware. That means elegant aesthetics that won’t fade, warp or corrode—perfect for the Isle of Man’s varying weather.
Aluminium with thermal breaks, triple glazing options, and excellent weather sealing ensure your windows and doors help control heat loss—even through harsh winters.
Our doors & windows resist salt air, moisture and temperature shifts better than timber or uPVC, requiring minimal maintenance while keeping your home secure.
Choose your frame sizes, colours, glazing styles, hardware, and finishes. We build to your exact measurements, whether for character filled cottages, modern homes, or larger commercial projects.
We stand by predictable lead times, transparent quotes, and a customer-first approach—from initial enquiry to final installation.
