Our Versatile Range of Composite Back Door
Crafted right here in the UK, our composite back doors combine unbeatable security, energy efficiency, and long-lasting performance. Built to PAS 24 standards for enhanced protection, each door offers peace of mind without compromising on style. Whether you’re after a modern or traditional look, you can customise everything—from colour and finish to glazing and hardware—to suit your home perfectly.
Explore our full range below to find the perfect composite back door that delivers a secure, stylish, and energy-efficient upgrade for your property.
Composite back doors are gaining popularity among homeowners. Why? They’re more than just a way in and out—they combine strength, security, and style. Unlike wooden or uPVC doors, composite back doors are made from a mix of materials like GRP (glass-reinforced plastic), wood, and uPVC. This blend makes them sturdy, efficient, and visually appealing, giving you the best of each material.
Key Features and Benefits

Energy Efficiency
Keeping your home warm in the winter and cool in the summer is important, both for comfort and saving money. Composite external back doors are great at keeping heat in or out, depending on the season. This means you can use less energy for heating and cooling, leading to lower bills. Back doors with glass can also come with double glazing, which adds extra insulation.

Weather Resistance
The British weather can be unpredictable, but back doors can handle it all. Wooden doors can swell, crack, or lose their finish when exposed to moisture. Composite back doors are designed to resist these issues, so they stay looking good and working well, no matter the weather.

Low Maintenance
Unlike traditional wooden doors, external back doors with glass need very little upkeep. No painting or varnishing is required—just clean them every now and then with soapy water. They don’t need special treatments or products, which makes them ideal for homeowners who want a low-maintenance option.

Durability
Composite back doors are built to last. Unlike wooden doors, which can warp or rot, composite doors are designed to endure tough weather. Whether it’s heavy rain, intense sunlight, or freezing temperatures, these doors keep their shape and look completely intact. In the UK, where the weather changes often, back doors are a reliable choice that will serve you for years.

Security
Security is a big deal, especially for back doors. Composite back doors have reinforced cores and multi-point locks, which makes them much safer than traditional doors. With high-quality materials and advanced locking systems, you can be confident that your home is secure. If you’re considering back doors, composite options provide some of the best security features available.
Design and Customization Options
One of the best things about composite modern back doors is how customizable they are. Whether your home is modern or classic, you can find a composite back door that fits perfectly.

Styles and Finishes
Composite back doors come in a wide range of styles, from sleek and modern to traditional. If you’re looking for something on-trend, Anthracite Grey is a popular colour choice for a stylish, contemporary look. The variety of colours and woodgrain effects means you can find something to match your taste.

Glass Options
If you want more light in your space, back doors with glass are a great choice. You can choose between frosted, clear, or decorative glass, depending on your style and privacy needs. Adding glass panels not only makes the door look more attractive but also allows natural light to enter your home.

Hardware
The details matter. From handles and letter plates to knockers, you can customize the hardware to add the perfect finishing touches to your door. These small features can make a big difference in the overall look.
Composite Back Doors vs. Other Door Types

Composite vs. Wooden Doors:
Wooden doors have been around for a long time, but they come with issues like regular maintenance and vulnerability to weather. Composite back doors, on the other hand, are more durable and less likely to warp or rot. They don’t need constant upkeep, making them a better long-term solution for back doors.
Composite vs. uPVC Doors:
uPVC doors are another common option for back doors because they are affordable. However, they aren’t as strong as composite doors. Composite black back door offer better security with their reinforced cores and advanced locks. They also have more options for customization in terms of style and finish.
Installation and Maintenance Considerations
Professional Installation: To get the best results from your composite back doors, professional installation is key. If the door isn’t installed correctly, you could have issues with drafts or reduced security. A professional installer will make sure the door fits properly, providing a tight seal that keeps your home comfortable and secure. A well-installed door not only looks good but also works efficiently. Contact us and let us know how we can assist you!
Maintenance Tips: Composite back doors are easy to care for. Give them a quick clean with soap and water now and then—there’s no need for harsh chemicals or special products. Use a soft cloth to avoid scratching the surface, and occasionally lubricate the locks to keep them working smoothly. With just a little care, your door will look great and last for years.

Cost and Investment
Composite Back Doors Prices:
The price of composite back doors depends on the features you want. Style, glass options, and hardware all affect the cost. Generally, composite back doors prices start from £671, with additional costs for professional installation. Special options like decorative glass or a particular finish, such as Anthracite Grey, may increase the price, but they also add value and kerb appeal.
Return on Investment:
Investing in composite back doors isn’t just about the upfront cost—it’s about long-term value. These doors help improve energy efficiency, which means you could save on energy bills for years to come. Plus, they enhance your home’s overall appearance, which can be a huge bonus if you decide to sell. Imagine a stylish, secure back door that not only keeps your home safe but also adds to its overall appeal. Considering their durability, security, and visual charm, composite back doors are a smart choice for homeowners looking to make a lasting upgrade.
Stylish Composite Back Doors From Colin’s Sash Windows
Composite back doors offer a blend of style, security, and energy efficiency that other doors can’t match. You can customize them in so many ways—from colour and finish to glass and hardware—so they fit any home. They’re low-maintenance, weather-resistant, and provide excellent security, all while looking fantastic. Whether you’re interested in composite back doors in bespoke colours or prefer a more traditional design, there are plenty of options. If you’re thinking about a home upgrade, composite back doors are a worthwhile investment that will pay off in comfort, security, and savings.
Ready to make an upgrade? Call us on 01525 552131, or use our contact form – we will be happy to assist you with getting your dream back door!
















































