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Working Hours : Monday to Friday (9am - 5pm)
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Doors
Doors
Nextlevelwindow double-glazed doors are secure, durable and energy efficient. You’ll find the perfect new door available as French, bi-fold, patio, front and back doors. Choose from composite doors, wooden doors, uPVC doors and aluminium doors. Add that extra space to hang your boots with a new porch or replace your old garage door with a secure colour-matched design. Design your perfect door with our visualiser
Front & Back Doors
Breathe new life into your home with modern or traditional designs.
Porches
Add a secure and spacious extension to give your home the wow factor.
Bifold Doors
Turn your home and garden into one seamless space to enjoy.
French Doors
Opening inwards or outwards, let light and fresh air flood your home.
Patio Doors
Save space without compromising on style with practical sliding doors.
Garage Doors
Choose from a wide selection of secure and durable designs and colours.
Front and Back Doors
Composite Doors
Our best-selling strong, secure and weatherproof door.
uPVC Doors
British-manufactured, practical doors in a range of styles.
Wooden Doors
Sustainably-sourced timber available in 22 designs and a range of colours.
Compare front and back doors
A Door Set Energy Rating, or DSER, is a method of assessing the total energy performance of a door. A door energy rating not only measures the total energy loss, as a U-value does, but also the energy gain and the air leakage through the door.
 uPVC Doors |
 Composite Doors |
 Wooden Doors |
 Aluminium Doors |
|
|---|---|---|---|---|
| Door Designs | 21 | 31 | 22 | 6 |
| Door colours |
9 colours |
Over 30 colours |
200+ RAL colours |
200+ RAL colours |
| U-Value | 1.4-1.6 W/m2K | 1.4-1.5 W/m2K | 1.8 W/m2K | 1.4 W/m2K |
| 3-Star Cylinder lock | Yale | Ultion | Yale | Yale |
Compare other Door types
| French Doors | Patio Doors | Bifold Doors | |
|---|---|---|---|
| Material | uPVC, wood or aluminium | uPVC or aluminium | Aluminium |
| Door colours |
200+ RAL colours (aluminium and wood) |
200+ RAL colours (aluminium and wood) |
200+ RAL colours |
| 3-Star Cylinder lock | Yale | Yale | Yale |
| Decorative and obscure glass* | Yes | Yes | Yes |
| Triple glazing option | Yes | - | - |
What are the benefits of Nextlevelwindow double-glazed doors?
If your door has glass panelling, double-glazing is a must. Double-glazed doors are a great way of insulating your home, reducing noise pollution and boosting the value of your property. Our external doors are fitted with an advanced locking system for extra peace of mind. So, if you’re looking for new doors for your house, choose NextLevelWindow.
Insulate your home
Like our double-glazed windows, an NextLevelWindow double-glazed door is crafted from two layers of glass that keep the heat in and the draughts out of your house. If you have glass doors – especially bi-fold, French or patio doors – double-glazing reduces heat loss through the doors. You’ll save money on your heating bills and have a stylish new door to show off.
Safe and secure
As the main point of entry to your home, it’s important that your external door is as safe and secure as possible. That’s why every NextLevelWindow house door is fitted with multi-point locking systems and a kitemarked cylinder lock as standard. Our doors come with a 10-year guarantee and 15-year sealed unit guarantee as standard.
Built to last
Your door is manufactured by expert craftspeople right here in Britain. Choose to buy from us and we’ll fit your door at your house at a time that suits you. Our installation team will remove your existing door and frame and fit a new one in its place. The golden rule is that we always measure twice to ensure the door and frame fit perfectly. Once fitted, our team make sure you’re happy with your new door or doors and answer any questions you have.
Choosing your Nextlevelwindowdoor is easy
Customise your front door
Complete the look of your new front door in the colour and finish of your choice. There’s plenty of handles, knockers and other door furniture to choose from, including glazing options on selected styles.
Design consultation
All our garage doors are made to measure to match the exact height and width of the space in your home.
Aftercare service
After fitting your new door, our installers run you through product aftercare and how to care for your new door.