You can combat the rising energy costs with a thermally retentive conservatory home improvement. We use ‘A’ rated energy efficient windows in our conservatories, ensuring that they comfortably exceed thermal performance requirements.

Conservatories South West
Do you remember old conservatories that were freezing in the winter and sweltering in the summer? We don’t sell those. Instead, we curate high-performance glazed extensions that can be designed specifically for your unique needs and space. Talk to us to find out what we can do for your space.
Why Choose Britannia?
Thermal Performance
10 Year Guarantee
We're confident that our products will offer much to your home. Our products' quality, durability, and security are genuinely second to none through constant innovation. This is why we offer a decade long guarantee with our conservatory installations.
Available Bespoke
Each home is unique, just like each homeowner. This is why we offer bespoke conservatories. We can create the perfect conservatory for you and your home. We believe that no home is too big or small for a conservatory.
Superior Manufacturer
We have invested millions of pounds into our state of the art UK manufacturing facilities, enabling us to provide high quality products at great prices. Our loyal factory workers are well trained and take pride in their work. They really care about conservatories.
High Quality
Our products are tested independently by British Standards. This means that we have to send them to independent test houses in order to be thoroughly tested. Needless to say, we take the quality of our products very seriously indeed.
Add Value
Having a conservatory can make a real difference to your home. It is one of the easiest ways to add space to your property without having to apply for planning permission. This added space can be a great way to add value to your property!


Glazing Options
We have a wide variety of glazing options for our conservatories, including self-cleaning, noise-reduction, UV filters and much more. Our high-performance glass retains heat in the winter and reflects the worst of the sun’s glare in the summer, so it is a comfortable temperature whatever the season.
We spend the time to understand what you want from your glazed extension so that we can provide a multifunctional space that you can use all year round; for entertaining, relaxing or spending some quality family time. We want your conservatory to be as individual as you are, so just organise a home visit, and we can talk you through all the options available to you.


Roofing Options
Homeowners no longer have to choose between a solid or glass conservatory roof with the hybrid roof, Livinroof. This roof can help you extend your living space and create a comfortable room that’s light, bright and suitable for year-round living.
We can also fit Ultraroof - the high performance, tiled conservatory roof. This roof is the lightest and strongest tiled conservatory roof on the market. It is designed to sit on old or new window frames and doors without ever requiring a tie bar.
With fewer and slimmer bars than other systems, the Ultrasky Lantern has the flexibility to respond to your design aspirations. Whatever style of property you own, the Ultrasky lantern will enhance it.
Frequently Asked Questions
Take a look at some of the questions previous customers have asked regarding our casement windows. If there’s something we haven’t covered, contact us online or over the phone to talk to our expert team today.


View Finance Offers
Get the conservatory you deserve, with the cost spread out in a way you can afford.
View Finance Options