Transform your home with our
Premium Composite Doors
Our family-owned business installs composite doors from the top manufacturers in homes around Louth, Lincoln, Scunthorpe, Doncaster, and Grimsby. With us, you may completely personalise your composite door.
Get a free online quote today, or feel free to contact my friendly team to learn more!
Request a quote
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- Family-run for over 35 years
- Made in Britain
- 10 year Guarantee
- Save Energy & Lower Bills
- A-Rated Frames
Composite Door Installation
You may choose from a range of composite door designs and customisation options from our selection. Our installations are constructed using quality components and state-of-the-art production methods, resulting in an incredibly appealing and useful final product for your home. With our top notch composite doors, your property can become more secure, energy efficient, and weatherproof.
Our premium composite doors are offered in a variety of designs, hues, and finishes. You may personalise your door to enhance your house with an interesting selection of decorative glass alternatives.
Our composite doors are made to the highest standards and are extremely robust, requiring minimal maintenance. Our doors are also incredibly secure. You can sit back and unwind knowing that you and your loved ones are protected thanks to cutting edge high security locking systems that are approved by Safe and Secure.
If you want to make an investment that will keep your house looking like new for years to come, our tough composite doors are a terrific choice.
Ready to transform your home with our Doors?
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
Read more
Patio Doors
More Information
Dura Doors
More Information
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 Composite Doors?
If you’re looking for composite doors, we are confident you won’t find a better product or service elsewhere. Here is what sets us apart
Environmentally Friendly
Our composite doors are built with sustainability in mind. Our home renovations are intended to benefit you and the environment.
Low Maintenance
We created our composite doors with the least amount of upkeep in mind. They merely need the occasional cleaning to stay beautifully presented.
Weatherproof Materials
With the help of our composite doors, you can protect your home from the worst winds, rain, and snow. Our composite doors are made from high quality, waterproof materials, which minimises leaks and draughts.
Composite Doors Gallery
Here's some of our most frequently asked questions...
How much does a new composite door cost?
The price of a new composite door depends on your chosen design, glazing options, and hardware – such as slam-shut locks or heritage pull handles. Because composite doors are engineered from a mix of high-density materials for superior strength, they are a premium alternative to standard uPVC doors. At Spire Windows, we manufacture our own high-quality frames and work directly with leading door-slab providers to cut out the middleman. This allows us to offer elite security and style at highly competitive, transparent prices.
How long will a new composite door last?
A high-quality composite door is designed to last at least 30 years. Unlike traditional timber doors, the GRP (Glass Reinforced Plastic) skin is incredibly durable and won’t crack, fade, or require repainting. The lifespan is further enhanced by our robust multi-point locking systems and heavy-duty hinges. Spire Windows has been trading for nearly 40 years, so we only use components that have truly stood the test of time, ensuring your home stays secure and well-insulated for decades.
How long does it take to install a composite door?
Most composite door installations are completed within half a day. The timeframe can vary slightly if you have side panels or if the structural aperture requires specific adjustments. Our team of skilled craftsmen are experts at achieving a perfect, draught-proof fit with minimal disruption to your home. Spire Windows prides itself on a swift and tidy installation process – we even responsibly dispose of your old door and frame, leaving your entrance spotless and secure before we leave.
How do I know if my existing front door needs replacing?
Key signs that it is time for an upgrade include noticeable draughts, a door that “sticks” or becomes difficult to lock in hot or cold weather, or visible fading and peeling. If your current door feels “flimsy” or only has a basic locking mechanism, you are missing out on modern security features. By upgrading to a Spire Windows composite door, you’ll benefit from a 48mm thick solid core and advanced thermal performance, providing your home with an immediate boost in both security and kerb appeal.