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House Extensions
House Extensions
At Britannia Windows, we supply and install many house extensions for your property. House extensions are suitable for adding an extra living space or transforming an existing one. They offer luxury and warmth, so you can stay comfortable all year round. What sets us apart at Britannia is that we offer made to measure fits and outstanding customer care. Get in touch with us to see how an extension can help you!
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Luxury House Extensions
Get Your DesignsHouse extensions are luxurious additions to your property. It can be utilised as an office space or a laundry room, while the ridges give you plenty of natural light. This creates a room that is warm in the winter and cooler in the summer. An extension supports bifold doors and French doors, so you can get an equal blend of panoramic views and ventilation.
The house extensions are as versatile as the roofing and can be customised. Utilise a sold roof, tiled roof, or a glass roof, bringing more light into your property. And, you can choose form a range of colours, such as Slate Grey or Chartwell Green.
A house extension increases the market value as well, which is perfect if you want to sell it further. Potential buyers will be attracted to the illusion of a massive space, as they can use it however they please. Create a guest bedroom with an en suite, or use it as a living room. The possibilities are endless when you choose our extensions.
Customisation Options
Glass Roof
Frame Colour
White
Satin Black
Anthracite Grey
Golden Oak
Mahogany
Rosewood
Slate Grey
Agate Grey
Cream
Chartwell Green
Cornice Type
No Cornice
1 Tier
2 Tier
3 Tier
Curved
Ridge Type
Classic Ridge
Slimline Ridge
Glass Colour
Neutral
Aqua
Blue
Bronze
Orangery
Single pitch
Hip Lean to
Glass Roof
This stunning conservatory extension will fill your home with plenty of natural light.
Complete your conservatory design by choosing high performance glass. Our glazing will stop your room from overheating during summer; it will also prevent it from getting too cold when winter arrives.
We provide a range of choices so you can benefit from a fully configurable system that can cope with most building styles. Our roofs work with most conservatory shapes.
Tiled Roof
Your Tile Colour
Carbon Grey
Harvest Brown
Terra Brick
Cornice Type
No Cornice
Curved
CARBON GREY
TERRA BRICK
HARVEST BROWN
Tiled Roof
If you want to get the most out of your conservatory or orangery space, high-performance tiled conservatory roof replacements are an attractive prospect. By heightening the feeling of space, our sophisticated solid roofing systems can easily transform tired glazed extensions into a space that feels like a full house extension. They are the ideal finishing touch for both new & old glazed extensions, and you can look forward to improved thermal efficiency, better acoustic insulation & increased kerb appeal with a superb solid tiled roof.
Solid Roof
Cornice Type
No Cornice
1 Tier
2 Tier
3 Tier
Curved
Shaped Roof Lights
No Rooflighs
Solid Roof
Solid conservatory roofs are incredibly energy efficient allowing you to enjoy your living space all year round.
The Livinroof is designed to give you the flexibility to combine solid and glazed roofing seamlessly. It enhances thermal performance to deliver a room that you can use all year round. A stunning addition to any home, both new and old.
The internal features of the Livinroof design enables you to install a range of lighting and speaker options. This also helps to reduce heating costs and insulate your home.
Flat Roof
Skylight Type
Lantern
Skylight
None
Lantern Colour
White
Grey
Black
Fascia
Classic Fascia
Curved Cornice
Two Tier Flat Cornice
Four Tier Flat Cornice
Fascia Colour
White
Grey
Soffit Size
Standard
Extended
Large Lantern
Multiple Lanterns
Multiple Skylights
Flat Roof
If you like clean modern lines then a Flat Roof extension with skylights is the perfect choice for you. But if traditional grandeur is more your style, our beautiful pitched lanterns make a stunning alternative.
This high quality Flat Roof system is the most thermally efficient on the market with a U-Value of 0.12W/m2K and is available with either flat skylights, roof lanterns or no roof lights.
Black/Brown
Chartwell Green
Cream
Golden Oak
Irish Oak
Mahogany
Rosewood
Slate Grey
White
Anthracite Grey
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Available Online, In-Store or At Home
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At Home
Have our friendly design expert over to discuss your project, advise and take measurements for an on-the-spot quote.
Book a home visitGrow Your Home and Save Money With A House Extension
Building your house extension will save you plenty of money on energy bills. Our extensions are some of the strongest and warmest builds on the market, giving you low U Values. They come with large glazing patterns that let unnatural light. With energy prices rising significantly, these orangeries will make your home warmer without using central heating.
One of the main reasons why extensions are installed is because they add an extra living space to your home. The versatile options include building an extra kitchen or even an office space if you work from home.
The Perfect Temperature All Year Round
House extensions offer the perfect temperature all year round. They can support both double and triple glazing, saving you money on your energy bills. This keeps you warmer in winter and cooler in summer. And, what’s more, you can choose from solid, tiled, or glass roofs too, giving you a wealth of options.
If you are ready to design your house extension, why not get a free quote? It is free and easy to use, and we will get back to you straight away.
Frequently Asked Questions
How much is a house extension
Your house extension price will vary depending on what you use it for.
For a more exact answer, check out our online quoting engine. Enter your bespoke details and we will generate a bespoke price.
How popular are house extensions?
House extensions are very popular in the UK due to their versatility and space. They can be used for a variety of rooms, such as an office space if you want to work form home, or an extra kitchen to connect your house to your garden.
The extensions add more light to your home, saving plenty of money on energy bills. The glazing deals with robust knocks, which are useful to keep intruders out.
What doors can I use in my house extension?
The choice is entirely yours! House extensions support a vast range of doors such as French Doors and bifold doors. Both these doors create the illusion of a bigger space, and come in a selection of bespoke colours.
What’s more, enhance your security features with our multi point locking systems and advanced shootbolt techniques. These designs ward off intruders, keeping you and your family safe.
Why choose a house extension?
A house extension can be used in a variety of spaces in your home. For example use it for a office space, living room or kitchen.
If you want to spend more time with your family, the extension will help create a versatile area. Use it for a guest room wth en suite. The possibilities are infinite!
Happy Customers
Meg Welch
Great job of our new front door. They couldn’t have been more helpful and even fitted earlier than originally planned. Also gave great aftercare advice and at a very reasonable price! Would 100% recommend.
Annette Clemons
Cannot recommend Britannia Windows enough! Joe & Keith, the installers were great – explained what was to be done, showed me everything I needed to know upon completion, very considerate & tidied up really nicely. Very friendly guys who are an asset to the team!!
I LOVE my new windows & door. Such an improvement.
Rachel Godfrey
We have been extremely pleased with Britannia’s service. From the initial quote through to installation they were great and really easy to communicate with. We had our conservatory roof replaced and they were by far the least pushy and most competitive in terms of pricing.
We can definitely recommend their services and will likely be returning again soon for a new front door!
Peter Burgess
Fantastic job from initial phone call through to final tidy-up.
Britannia provided great advice before purchasing my new windows and fitted them to a high standard being punctual and polite throughout.
No request was a problem and I will definitely be using them again and would recommend to friends and family.
Jerry G
Wow a fantastic job by both sales team and fitting team.
Sam provided excellent service and answered any questions that we had. Luke, Dave, Keith and Joe did a fab job at fitting the windows and doors. Never having had anything like this done before I was a little nervous but the guys were clean and tidy and the outcome is amazing.
Would highly recommend.
