Transform your home with our
Aluminium Windows
Our aluminium window system is perfect for a wide variety of projects, including both new builds and refurbishments. Whether for residential homes or light commercial applications, these windows offer the ideal blend of slim sightlines and structural integrity.
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- Family-run for over 35 years
- Made in Britain
- 10 year Guarantee
- Save Energy & Lower Bills
- A-Rated Frames
Premium Aluminium Windows
Aluminium windows offer a wide range of benefits that make them a premier choice for modern British homes and commercial developments. One of the most significant advantages is their exceptional durability; aluminium is naturally robust, resistant to corrosion, and does not warp, crack, or swell. This ensures long-lasting performance and structural integrity with minimal maintenance, even when facing the unpredictable British weather.
The inherent strength of the material also allows for much slimmer frames compared to uPVC or timber. This architectural flexibility means you can fit larger glass units, allowing significantly more natural light to flood into a room. Because of this resilience, aluminium is also the perfect application for windows in high-traffic areas or large-scale installations where slimmer sightlines are desired without compromising on stability.
Ready to transform your home with our Windows?
Need some inspiration?
Get your inspiration and ideas from Spire customers who have transformed their homes.
Our inspirations portfolio is the perfect taster of all the amazing home improvement choices we have to offer.
Conservatory Case Study
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Patio Doors
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Dura Doors
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Visit our showroom
If you’d like to see our designs up close, you’re always welcome at our Louth showroom.
Located next door to our factory, our showroom features a range of our windows, doors, conservatories, and Thermotec roofing. Feel free to discuss your requirements with our helpful team, or simply enjoy browsing.
"The entire team were totally professional from start to finish. Ultra friendly and comprehensive in their systems. Fitters loved a bacon bun too"
"From start to finish we had outstanding customer service. I can honestly say the best of the best windows and doors I’ve seen from spire windows. I’m not just saying this but the quality of each window is outstanding and the 2 men that fitted Ian and Bernard worked extremely hard to get our windows and doors fitted in 4 days they fitted 10 windows and 2doors front and back. Both men were friendly , honest and polite . If you are thinking of getting new windows ,doors etc I can recommend Spire Windows in Louth"
"Very professional from start to finish. From our first visit and quote to the installation of our windows and door. The timeline was pretty much as quoted and the two installation technicians, Paul and Correy, were very good, professional and respectful of our property. Thank you."
"Excellent service from start to finish. Really tidy workers no mess and very efficient all of them .would certainly recommend this company"
"Had 10 windows and 3 doors fitted by Spire. From the initial meeting with Peter to the installation everything was explained in detail professionally. No hard sell like other companies just a fair price for great quality windows. The installation team were friendly, hard working and tidied up after themselves despite some very challenging weather."
The Spire difference
The 
difference
We treat you like you’re a part of the family. Aggressive selling, false promises, hidden charges? Nope! You don’t get any of that nonsense here. Just open, honest, straightforward and friendly service from a family-run team that truly cares.
Design visit
Once we’ve received your enquiry, we’ll arrange for a surveyor to visit your property. They’ll answer your questions and provide you with a quote.
Technical survey
An experienced surveyor will visit your home to conduct the final checks and take measurements for the manufacturing process.
Bespoke UK manufacture
We create made-to-measure products for your home on-site at our Louth factory. If you’d like to see our factory, why not pay us a visit?
Installation
Our experienced local fitters will complete the installation, minimising disruption to your daily routines.
Aftercare
We’ll provide a follow-up call to ensure you’re 100% satisfied. We also offer a 10-year, in-house guarantee.
Why our Aluminium Windows?
If you’re looking for aluminium windows, We’re proud to offer exceptional products and a service you can rely on. Here’s what sets us apart
Lower Energy Bills
Our double glazing and innovative frames can reduce your heating bills and improve the energy performance of your home.
Safe and Secure
To allow for peace of mind and relaxation, our double glazed windows are fitted with the latest security features.
A Warmer Home
Our low emissivity glass reflects heat back into your home and argon gas with a thermal edge spacer bar reducing heat loss and condensation.
Aluminium Windows Gallery
Here's some of our most frequently asked questions...
How much do aluminium windows cost for a typical 3-bedroom house?
The price of fitting a 3-bedroom house with new aluminium windows depends on the profile thickness, the number of openings, and your choice of RAL colour powder-coating. While aluminium is a premium material compared to uPVC, its incredible strength allows for larger glass panes and slimmer frames. Because Spire Windows manufacture our own high-quality aluminium frames, we cut out the middleman, allowing us to offer these high-end, contemporary systems at highly competitive and transparent prices.
How long will new aluminium windows last?
Aluminium is an exceptionally durable material that can easily last 30 to 45 years. Unlike other materials, aluminium does not rot, rust, or warp, and its powder-coated finish is resistant to fading and scratches. The longevity of the window is supported by high-grade hardware and the inherent structural integrity of the metal. With Spire Windows’ nearly 40-year history, you can trust that our bespoke aluminium frames are a long-term investment that will remain stylish and functional for decades.
How long does it take to install aluminium windows?
The installation time depends on the complexity of the project and the size of the structural apertures. Because aluminium frames are naturally slimmer and lighter yet stronger than uPVC, they are often easier to manoeuvre, though they require precision fitting to ensure the polyamide thermal breaks perform at their best. Our team of skilled craftsmen are experts at installing aluminium systems with minimal disruption. Spire Windows prides itself on a swift, efficient process – we even responsibly recycle your old frames, leaving your home spotless.
How do I know if my existing windows need replacing with aluminium?
If your current windows have bulky frames that block your view, or if you notice significant heat loss and “blown” double glazing, it may be time to upgrade. Many homeowners switch to aluminium when they want to achieve a modern, architectural look with slimmer sightlines that let in more natural light. By upgrading to Spire Windows’ latest thermally-efficient aluminium frames, you’ll immediately enhance your home’s security and kerb appeal, providing a sleek, high-performance finish to your property.