Aluminium Double Doors: 2025 UK Buyer’s Guide & Costs
Aluminium double doors solve three common homeowner problems in one upgrade: high energy bills from poor insulation, frequent maintenance on wooden or uPVC doors, and limited natural light because of thick frames.
In the UK and Ireland, 68% of homes built before 2000 still have single-glazed or poorly sealed patio doors (source: Department for Energy Security statistics 2024). Aluminium double doors with thermal breaks and double glazing cut heat loss by up to 42% compared to old timber frames. They also last 30–45 years with almost zero upkeep.
This guide covers every decision point — from choosing the right type to exact costs and installation details — so you can avoid the mistakes most people make when replacing entrance or patio doors.
Why Aluminium Beats Wood and uPVC in Real UK Homes
Wooden double doors rot or warp within 10–15 years in wet climates. uPVC yellows and becomes brittle after 12–18 years in direct sun. Powder-coated aluminium stays colour-fast for 25+ years (tested to BS EN 12206 standard).
Security is another clear win. Most modern aluminium double doors come with PAS 24-certified multi-point locks and internally beaded glazing, making forced entry 4 times harder than standard uPVC ( Secured by Design data).
Noise reduction reaches 42–48 dB Rw with acoustic laminated glass — a big difference if you live near a main road or school.
The 4 Main Types and When to Choose Each
- Hinged French Doors Best for front entrances or narrow openings. Full 180° opening swing. Choose mid-rails if you have young children or pets.
- Lift-and-Slide Patio Doors Ideal when you want zero floor space taken inside or outside. Panels lift slightly on the handle turn for smooth operation even at 400 kg per panel.
- Bi-Fold Doors (2–7 panels) Perfect for wide openings (3–6 metres). Concertina fold gives 90–100% clear opening. Low-threshold option available for wheelchair access.
- Pivot Entrance Doors Statement front doors up to 3 metres wide x 3 metres tall. Centre or offset pivot for dramatic effect.
Key Specifications You Must Check Before Buying
- Frame depth: 70–90 mm for residential, 120 mm+ for commercial wind loads
- U-value: Aim for 1.4 W/m²K or lower (whole door including glass)
- Glass: Double or triple glazing with warm-edge spacer and argon fill
- Thermal break: Polyamide strips (not cheap foam) inside the frame
- Gaskets: Dual or triple weather seals, EPDM
