Aluminium French Doors
Our aluminium French doors combine sleek, slimline design with exceptional strength, security, and energy efficiency. Whether opening onto a garden, balcony, or conservatory, they create a grand entrance while flooding your space with natural light. With bespoke options to suit any home, these doors feature slim aluminium frames, high-performance glazing, and multi-point locking systems for lasting durability and peace of mind.
For a striking Art Deco or industrial aesthetic, our Crittall-style aluminium doors replicate the look of traditional steel-framed designs—without the drawbacks of rust or poor insulation. They feature classic detailing such as lock blocks and tape or gasket glazing for an authentic period finish. A polyamide thermal break enhances insulation, achieving a U-value of 1.5 W/m²K for modern comfort in a timeless style.
10-year warranty on Manufacturing
10-year warranty on glazing
5-year warranty on ironmongery & seals
10 years on Workmanship
Why Choose Aluminium French Doors?
Whether you’re upgrading a classic period property or installing doors in a modern extension, their slim aluminium frames provide a clean, contemporary look without compromising on strength. Aluminium is also low-maintenance, resistant to rust, and won’t warp or fade over time. This makes it an excellent long-term investment, especially for external doors exposed to the elements.
With advanced thermal break technology, such as gasket or tape-glazed seals to reduce draughts, these doors are highly energy efficient – helping to retain heat and lower heating bills. The Alitherm Heritage range is designed to achieve a U-value of 1.5 W/m²K, making it a strong performer in all seasons.
Security is a priority. Our multi-point locking systems and reinforced aluminium profiles provide peace of mind, ensuring your home stays safe while maintaining an unobtrusive design.
Available in any RAL colour and a range of powder-coated finishes, our aluminium French doors are versatile, durable, and built to last.
Crittall-Style Aluminium French Doors
For homeowners looking for the industrial look without the drawbacks of traditional steel doors, our Alitherm Heritage Aluminium French Doors offer the perfect solution. Inspired by classic Crittall-style designs, these doors provide the narrow sightlines and grid-like glazing bars of traditional steel-framed doors, but with the thermal performance, durability, and security of modern aluminium.
Our Installation Process
Free Consultation & Quote
We start with a detailed consultation, in-person or by phone, to understand your space and needs. Our team assesses dimensions, configurations, and finishes, tailoring every order. You’ll then receive a clear, no-obligation quote.
Custom Manufacturing
Once ordered, your bespoke aluminium French doors are crafted to British building standards using high-quality aluminium with a durable powder-coated finish in your chosen colour.
Expert Installation
Our FENSA-certified installers ensure a precise, weatherproof fit, handling everything from removal to a clean, hassle-free installation.
Why Choose Sash Windows London?
We have been supplying and installing high-quality aluminium French doors across the UK for over 20 years. Our commitment to precision craftsmanship, security, and energy efficiency has made us a trusted choice for homeowners looking to upgrade their properties with durable, stylish, and thermally efficient doors.
- UK-Manufactured Doors: Built to British standards for long-lasting performance.
- FENSA-Approved Installations: Professional fitting that meets essential building regulations.
- 10-Year Guarantee: Giving you peace of mind that your doors are made to last.
- Excellent Customer Reviews: A proven track record of quality service and happy customers.
- Quick Lead Times & Professional Installation: We work efficiently to ensure a smooth process from order to fitting.
Whether you’re replacing old doors, renovating a period home, or installing new French doors with side windows, we provide bespoke aluminium options for your project.
Trustpilot Reviews
Get a Quote on Custom Aluminium French Doors
For high-quality aluminium French doors with slim frames, excellent security, and thermal efficiency, choose Sash Windows London. We offer bespoke designs, quick lead times, and expert installation to ensure a perfect fit for your home. Get in touch with us today – our team is ready to help you find the right doors for your property.
FAQs
Can I install aluminium French doors with side windows?
Yes! We offer French doors with side windows, allowing for even more natural light and a wider glazed area. This is a great option for larger openings, kitchen extensions, or patio entrances, maintaining the slim sightlines of aluminium while making the most of the view.
Are these doors suitable for period properties?
Absolutely. Our Alitherm Heritage range is designed to replicate traditional Crittall-style doors, making them an ideal replacement for steel doors in period homes, renovations, and conservation projects.
How long does installation take?
Installation can take as little as a few days, depending on the size and complexity of the project. Our FENSA-certified installers work efficiently to ensure a seamless fit, leaving your home clean and tidy when the job is done.
Do aluminium French doors require a lot of maintenance?
No. Aluminium is naturally resistant to rust, warping, and fading, making it low-maintenance compared to timber or steel doors. To keep them looking and performing their best:
- Wipe down frames with mild soapy water to prevent dirt build-up.
- Check locking systems periodically to ensure smooth operation.
- Lubricate hinges and handles annually for seamless use.
With quick lead times and a 10-year guarantee, you can enjoy your new doors with total peace of mind.