Aluminium French Doors
Aluminium French Doors – Classic, Elegant and Secure
Commercial & Domestic Aluminium Ltd (CDA) designs, supplies and installs premium aluminium French‑door systems for homes, extensions, apartments and commercial properties across the UK. Whether you’re refreshing a countryside cottage in Devon, upgrading a townhouse in London, or installing balcony access on a new development in Manchester, our bespoke French doors combine timeless aesthetics with modern build quality, thermal efficiency and security.
With over 25 years’ glazing experience and partnerships with leading aluminium system brands such as Comar Architectural Aluminium Systems and Smart Architectural Aluminium, we offer slim‑profile, thermally broken frames, a wide choice of finishes and glazing options all installed by our experienced in‑house team to deliver a seamless, compliant and enduring result.
Why Choose Our French Doors?
Aluminium Bifold Doors ›
Create open-plan spaces with ultra-slim frames and smooth concertina action.
Aluminium Patio Doors ›
Maximise glass area and natural light with minimal frame interruption.
Aluminium Entrance Doors
Secure, stylish, and available with custom thresholds and glazing options.
“We manufacture and install aluminium French door systems to the highest standards, with a focus on longevity, security, and style.”
Slim, Strong Frames
Fully Customisable
Secure By Design
Thermally Broken
Useful Information
Our French Door Systems
Performance & Technical Specs
| Feature | Typical Range / Value | Notes |
|---|---|---|
| U-value | ~1.2–1.6 W/m²K | Dependent on system, glazing & spacer. |
| Security | PAS 24 capable | Enhanced UK security standard for doors. |
| Air tightness | Class 4 | Helps reduce draughts and heat loss. |
| Water tightness | 600–1200 Pa | Suitable for UK exposure conditions. |
| Acoustic reduction | Up to ~45 dB Rw | With laminated/acoustic units. |
| Accessibility | Part M low threshold | Wheelchair/pram-friendly access. |
Figures are indicative; we confirm exact values for your chosen system and glass.
Configurations & Design Options
- Open-in or open-out double doors
- Equal or lead leaf set-ups (choose your main traffic door)
- Side lights / top lights for wider apertures and extra daylight
- Trickle vents and integrated glazing bars if desired
- Handles & hardware in coordinated finishes (colour-matched options)
Sliding & Bifold Alternatives (Quick Comparison)
Which should you choose?
- French — classic look, excellent ventilation, simple everyday use
- Sliding — the largest uninterrupted glass areas and minimal internal/external space conflict
- Bifold — the widest fully openable aperture for entertaining
Installation Process & Timeline
- Survey — measure opening, confirm thresholds and swing direction
- Design & Order — CAD sign-off, choose hardware and finishes
- Fabrication — precision-built aluminium and IGU assemblies
- Installation — clean, efficient fitting by qualified installers
- Handover — care guide and warranties issued
Typical duration: ~4–6 weeks from sign-off, depending on spec and diary.
Colours & Finishes
- 200+ RAL colours
- Dual-colour options (different inside/outside)
- Textured and anodised finishes for coastal durability
- Colour-matched hardware and trims available
Warranty & Maintenance
- 10-year frame & hardware warranty (system-dependent)
- 5-year glazing warranty
- Clean frames with mild detergent twice yearly
- Lubricate hinges/locks annually; keep thresholds and drainage clear
Aluminium French Door FAQs
Are aluminium French doors secure?
Do you offer low thresholds?
Can I have side panels or a top light?
Absolutely — fixed side lights and fanlights are common to increase light and suit wider openings.
Which areas do you cover?


We only use high-quality products in our installations. All our systems comply with BS EN 14351-1 and Building Regulations Part L
Brochures
Aluminium Doors Brochure
