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High Performance Double Glazed Windows

Upgrade the style and performance of your whole house by upgrading those tired windows to our sleek, stylish and highly insulating double glazed windows! Whether you choose our aluminium sash windows or our flush casement uPVC windows – you’ll be amazed by how much it boosts the appearance! You can get a quick quote now using the instant quote form, or if you have any questions, feel free to get in touch with our expert and experienced team to find out more!

  • Wide Range of Styles
  • 10-Year Guarantee
  • Energy Efficient
  • Instant Aesthetic Boost
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What Products Are You Looking For?

Casement Windows
Tilt & Turn Windows
Aluminium Windows
Flush Casement Windows
Bow and Bay Windows
Heritage Windows
Sash Windows
French Windows
Triple Glazed Windows
Considering All Options

What is the timescale for your project?

ASAP
1-3 Months
4-6 Months
6+ Months

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Thank you for enquiring with Britannia Windows

The team at Britannia Windows appreciate you taking the time to contact us. One of our friendly and knowledgable advisors will be in touch with you as soon as possible to provide our very best quote.

We look forward to speaking to you soon,

The Britannia Windows team.

Key Features

Fully Accredited

You need to be sure that you’re using a home improvements company you can rely on. That’s why we hold a wide range of accreditations, to give you peace of mind!

Finance Options

Don’t stress about delaying the start of your window upgrades! Thanks to our financing options, you can get the new windows you want, with a payment schedule that works for you.

10 Year Guarantee

You want to know that any upgrades you make to your home will last, so we offer a 10 year guarantee to assure you that we’ll be there in the unlikely event that something does go wrong.

Free Home Visits

Don’t get caught out paying for a quote! We offer free home visits so that we can provide comprehensive and completely free quotes to all of our potential customers!

double glazed sash windows

Thermally Efficient Double Glazed Windows

When choosing new double glazing, consider factors such as energy efficiency, security, and aesthetics. But no matter which style you go for, you’ll still be getting all the amazing thermal benefits of our high-performance designs! Every window we install is double glazed as standard and will provide exceptional insulation to your home.

Because our double glazing can effectively control heat movement, you’ll find that your home can maintain a more comfortable and consistent temperature all year round, without requiring you to depend too heavily on your central heating.

Double glazed window prices can vary, but the long-term savings on energy bills make them a cost-effective choice. Getting your free double glazing quote is easy and can help you understand the potential costs and savings. Did you know we also offer secondary glazing and triple glazing?

new double glazed windows near me

Wide Range of Window Styles

We offer a range of different window shapes and styles so that you can be sure to find something to suit your home.

We also offer aluminium double glazed windows in various styles. From casement windows, sash windows, tilt and turn windows, you’ll be spoilt for choice when it comes to your home’s new double glazed windows!

New UPVC windows offer the latest in window technology, providing superior performance and aesthetics. Replacement windows are a great option when your existing windows are past their best and double glazing will provide you with excellent performance.

double glazed window quote

Customise Your Windows

Our range of window styles are available to customise to your personal preference, whether that’s material, colour and size.

Our aluminium double glazed windows are available in our strong and durable material, giving you the choice of our large range of colours to customise for the aluminium frames.

Alternatively, we offer modern uPVC in our window range. Replacement double glazing can enhance the style of your home, from double glazed sash windows, bay windows and flush casement windows, we have every style for you to customise and make your own.  Get your double glazed window price today by using our quoting form above!

Double Glazed Window Prices

At Britannia Windows, we are your local double glazing company. Use the instant form at the top of the page to get a fast, free double glazed window quote tailored to your specifications, with zero obligations to buy! You’re just a few clicks away from the start of your journey to higher-performing, stylish windows for your home!

From uPVC double glazed windows, to specfic designs like; flush casement windows, classic casement windows, double glazed sash windows, tilt and turn windows and even triple glazing- we have something for everyone! uPVC not your style? We have plenty of aluminium options to offer!

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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.