Make a stunning first impression with our premium composite doors. Combining exceptional security, thermal efficiency, and beautiful design in one remarkable entrance.
Design Your DoorMulti-point locking systems and solid composite construction provide outstanding protection against forced entry and intruders.
Dense foam core and weather seals deliver exceptional thermal performance, keeping your home warm and reducing energy costs.
Extensive choice of styles, colours, and decorative glass options to create a door that perfectly reflects your home's character.
Composite doors from Range Windows represent the ultimate in entrance door technology, offering unmatched security, performance, and kerb appeal for discerning homeowners.
Solid Core Construction
Unlike traditional doors, our composite doors feature a solid timber core surrounded by layers of insulating foam and durable GRP skin, creating an incredibly strong and secure entrance.
Low Maintenance Excellence
The GRP skin resists fading, warping, and cracking, maintaining its pristine appearance for years with minimal upkeep. Simply wipe clean occasionally to keep it looking new.
Unlimited Design Possibilities
Choose from hundreds of combinations of styles, colours, glazing patterns, and hardware finishes to create a truly bespoke entrance that enhances your home's character.
A composite door is built from multiple layers of different materials, each chosen for a specific performance characteristic. The outer and inner faces are formed from glass reinforced plastic (GRP) — a material that faithfully replicates the grain and texture of timber while being completely impervious to moisture, rot, and UV fading. Between these skins sits a solid timber frame surrounding a core of CFC-free polyurethane foam insulation, which gives composite doors their characteristic weight and thermal performance.
This construction makes composite doors significantly more secure than hollow-chamber uPVC doors. All our composite doors meet PAS 24:2022 — the enhanced security standard for doors and windows — and are eligible for Secured by Design accreditation, the official UK Police security initiative. Every door is fitted with a multi-point locking system that engages at multiple points along the frame, not just at the handle.
The steel-reinforced frame and compression seal system also means composite doors perform well in the wet North East climate — tightly sealed against wind-driven rain and draughts in a way that older timber or uPVC doors simply cannot match. All our installations are Assure Certified and self-certified to Building Regulations, so you receive a compliance certificate from day one.
One of the most significant advantages of composite doors over standard uPVC is the breadth of design choice. We offer a wide range of door styles suited to every property type across Sunderland and Tyne and Wear:
Our composite doors are available in over 20 colours including Anthracite Grey, Chartwell Green, Cream, Black, Red, Blue, Irish Oak, and Golden Oak — with the option of different colours on the inside and outside face. Hardware finishes include chrome, brushed stainless, black, and gold. Contact us to request a full colour and style brochure.
| Feature | Composite Door | uPVC Door |
|---|---|---|
| Core construction | Solid timber & foam | Hollow chamber |
| Security standard | PAS 24:2022 | Varies |
| Timber appearance | Authentic GRP grain | Limited |
| Lifespan | 30–35 years | 20–25 years |
| Maintenance | Wipe clean only | Wipe clean only |
Book a free home survey — no obligation, no pressure.
Get a Free QuoteCommon questions from homeowners across Sunderland and Tyne and Wear.
A fully fitted composite door typically starts from around £800–£1,200 depending on style, colour, glazing, and hardware choices. We provide free, itemised quotes with no obligation and no pressure to proceed. Contact us to arrange your free home survey.
Composite doors are among the most secure entrance doors available. Our doors meet PAS 24:2022 enhanced security standards and are fitted with multi-point locking systems. The solid GRP and timber core construction makes them significantly harder to force than standard uPVC doors.
A composite door has a solid core — timber surrounded by CFC-free foam insulation — with a glass reinforced plastic (GRP) outer skin. A uPVC door has a hollow chamber construction. Composite doors are heavier, warmer, more secure, and far better at reproducing the look of a traditional timber door.
A quality composite door will typically last 30–35 years with minimal maintenance. The GRP skin does not rot, warp, or fade like timber, and does not discolour like older uPVC. All our composite doors are covered by our 10-year guarantee.
Composite doors with a GRP skin can be painted using specialist GRP-compatible paint, but they are manufactured in a wide range of colours and the finish is designed to last without repainting. Unlike timber, the colour does not peel or flake — repainting is rarely necessary.
Yes. The GRP skin does not absorb moisture, and the multi-point locking system compresses door seals tightly against the frame to prevent draughts and water ingress. They perform particularly well in the wet North East climate — a key reason they've become the most popular front door choice across Sunderland and Tyne and Wear.
In most cases, no. Replacing an entrance door is considered permitted development for standard residential properties. Listed buildings and some conservation areas in Sunderland may have restrictions — our team will advise during your free survey if any consents are required.
Contact us today for a free, no-obligation quote on your Composite Doors.
Get Your Free Quote134 reviews on Google
Lisa Young
4 months ago
Fantastic experience with Lee from Range Windows. Prompt efficient service, windows swiftly measured up and date of installation agreed. Call on the day of installation to confirm the time and Lee arrived as agreed. Fab installation and exceptionally happy with the product. Will definitely recommend.
Keira Hunter
This week
Had a new door fitted by Range Windows and Doors today, door looks amazing and service was brilliant. Everything was all cleaned up after the job was finished too which was a bonus. Highly recommended.
Taryn Cotton
This week
Definitely recommend this company! Service is 5 star, they try to help any way they can. Fitting me in to fit a low profile door so my wheelchair could get in my new home. The door is easy to work, draft free and feels very secure and solid. A very caring genuine company which is hard to find nowadays.
Deborah Younger Martin
A month ago
Excellent service, friendly, helpful, arrived when they said they would, and cleaned up after themselves. Can't recommend enough.
Stephen Raine
A month ago
Adam and Brad came early, on time and got to work straight away. They worked hard, fitting 3 new bedroom windows then a back door — all finished in the day. Every item was installed well. They cleaned up everything inside and out, taking all rubbish away with them. Thank you for your good work.
Sye
2 months ago
Within a day Adam came to the house for a free quote — no pressure, no rush. Very professional and we chose this company just from how Adam represented them. Lee measured everything up within days, giving honest advice where other companies were saying to replace everything. Outstanding service.
Jessica Campbell
2 months ago
I couldn't recommend these guys enough! Service was spot on start to finish. Lee and the guys are so knowledgeable about their products, even dropping off brochures so I could make a decision in my own time. No pressured sales, just down to earth people. Adam and Brad fitted the door — so professional.
Aaron Harfield
A month ago
Amazing job, could not ask for more from Lee and Adam.
Get in touch — and see why homeowners trust Range Windows with their home.
info@rangewindows.co.uk
0191 375 8531
Unit 13
Pennywell Business Centre
Sunderland
SR4 9AR
Monday – Friday: 8:00am – 6:00pm
Tell us a bit about your project and we'll get back to you within 24 hours.
