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Patio Doors

Patio Doors

With our smooth operation high performance patio doors, you can open up your house in style. We manufacture in Clevedon and have showrooms in Bristol and throughout the South. Begin your patio door quotation online right now!

Natural Light with Patio Doors

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A great alternative to bifold doors, our patio doors allow a generous amount of natural light and fresh air into your home, creating a more open atmosphere. This is particularly useful if your connecting room is a little on the darker side. Where sliding doors let light flood in, they also create the illusion of a bigger room.

Our patio doors are a beautiful way to open your home to your outside space, resulting in a light and spacious atmosphere within your home. Available in both uPVC and aluminium, our sliding doors are durable, easy to maintain and attractive. With a choice of two, three or four panes, our doors are simple to operate and provide easy access to the surrounding outside space.

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Select your favourite designs, input your specifications, and we’ll send you a FREE door quote based on your design preferences.

Available Online, In-Store or At Home

Experience the freedom of obtaining the products you desire, tailored to your preferences. Our dedicated team is always available to assist you whenever you require assistance. Your satisfaction is our priority.

Modern Design

Patio doors could be just what your home needs to be brought into the 21st century. With some of the sleekest and slimmest sightlines available, these double glazed doors can transform your property. Make your home truly stand out with our sliding doors.

Contemporary Performance

Matching their modern looks and design, the performance of these patio doors is similarly state of the art. Our sliding doors are made with the finest quality materials at our Clevedon factory. The result? A sliding door that offers the highest level of security, weatherproofing, and efficiency.

10 Year Warranty

We have complete faith in the home improvements we install in the South West. We use skilled and well trained workers to ensure a great patio door installation. You can rely on the quality of our installations since we give a 10 year warranty as standard.


You don't have to take our word for it when it comes to the quality of our patio doors. We have a variety of certifications from some of the most prestigious UK agencies. With CERTASS accreditation and Secured by Design status, you can be certain that our uPVC doors will meet your expectations.

Made in the United Kingdom

Britannia likes to keep an eye on our windows, doors, and conservatories. We can assure the greatest levels of quality control by manufacturing our patio doors in our Clevedon plant. Trust our British made windows and doors.

Finance Options

Choosing new patio doors for your house may be a huge choice. Britannia offers a variety of financing alternatives to make things simpler. We'll be able to discover a solution that works for you, including choices for interest free finance. Investigate our financing options online now.

Customisation Options


Chartwell Green


Golden Oak

Irish Oak



Slate Grey


Anthracite Grey

Patio Doors That Save Energy

Over the past several decades, energy efficiency has grown in importance. Energy expenditures are always rising, putting a burden on your house and family. Fortunately, there is something you can do to combat growing expenses. Modern uPVC doors, such as our patio doors, may have a significant impact on the thermal efficiency of your house.

Modern materials are an energy efficient material by nature. In addition to our high quality glass, our patio doors are intended to trap a lot of heat in your house throughout the winter. At the same time, it will keep your house from being too hot during the hot summer months. As a consequence, you may find yourself using less central heating and maybe even seeing a decrease in your energy expenses in the future.

Sliding Doors That Are Weatherproof, Safe and Secure

Thermal efficiency isn’t the only area in which our patio doors excel. When it comes to weatherproofing, they offer a great performance. Modern weather seals, in addition to being double glazing, will guarantee that even the harshest UK weather is rejected.

But it’s not simply the weather that your patio doors will keep out. Intruders will be kept at bay. Double glazing will make your house safe and secure, and a variety of multipoint locks will contribute to a strong profile. You’ll be able to sleep well at night, knowing your home is safe and secure.

Frequently Asked Questions

How much does a patio door cost?

The cost of patio doors can vary widely depending on various factors. This includes the material you make them out of, the size of patio doors you want, and the type of glass you want. Start your online quote today!

Are sliding patio doors easy to break into?

Although sliding patio doors are made mostly of glass, they are incredibly secure. Double or triple glazing is very difficult to break, and at Britannia, we fit toughened glass as standard on all doors and windows.

Do you have a showroom?

We have a few showrooms for you to visit. Come and pay us a visit in Bristol, Clevedon and throughout the South East and South West and see our range of windows, doors and conservatories in person.

Happy Customers

Lady drinks coffee and watching through windows and doors

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Credit is subject to status and affordability. Terms and conditions apply. Authorised and regulated by the Financial Conduct Authority. Network Britannia Windows Limited FCA Register no. 738269 trading as Britannia Windows Bognor, Britannia Windows Bristol, Britannia Windows Eastleigh is an appointed representative of Ffenestri Limited FCA Register no. 716352 Kimberley Road, Clevedon, Somerset, BS21 6QJ is a credit broker, not the lender. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC. Authorised and Regulated by the Financial Conduct Authority.