Extensions

Whether the extensions for your home to form a larger kitchen, dining room or lounge.

Do you have your perfect home but it just needs a few home improvements or an extension to give you that much needed extra space? Whether it’s a new conservatory or orangery or an extension to an existing room, at County we bring your home improvement dream to life. We have a team of highly skilled and experienced designers, builders and installers to make sure every part of the process from designing your extension to building the structure and installing the windows and doors is done to the highest possible standards and to your exact requirements.


County has vast experience in home extension building...

Instead of going to the laborious effort of finding a reliable builder, architect, plumber, plasterer and fitter, just appoint County as we can take on all of these roles, and we won’t overstretch your budget.

This will save you time, and an awful lot of money. County is the only project manager you need for your home extension.

  • Dream Big - Head to one of our stunning showrooms to begin designing your home extension with our state-of-the-art 3D software. This will give you an amazing insight into how the finished extension will feel, inside and out.
  • Hassle Free - Anything to do with planning permission and building regulations can be handled by County, leaving you to concentrate on other important things.
  • Huge Choice - We have everything you could possibly want for your extension, including a varied assortment of roofing options (including traditional tile or slate to modern composite), standard or vaulted ceilings, and all manner of window and door styles.
  • Feel Involved - It’s your home extension, so we will get you as involved in the project as we possibly can. You will feel a massive sense of achievement once it’s complete.
  • Surprisingly Affordable - Use one of our finance packages to help you spread the cost of the extension over a 5 to 15-year period.


For help & advice call 0800 542 6103 today!



Explore our extensions range



Arrange Appointment Online

For an initial telephone consultation with one of our Architectural Designers, simply leave us your details and they will contact you to offer some preliminary advice and a no-obligation home visit.

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Make your house a home! Let County take care of it for you – get in touch with us today and see how we can help.

Get a free quote

or call us today on 0800 542 6103.

What our customers say

The glazing elements of our orangery product are all very good quality, measured, designed and installed without any real issues,...


Conservatory / Orangery Hassocks
Guy Whittle – 15th Jan 2020

Conservatory / Orangery Brighton
Mr Nigel Perkins – 2nd Jan 2020

Very pleased with the products.


Conservatory / Orangery Pulborough
Claire Sellwood – 20th Dec 2019

Belatedly, please could you please pass on our thanks to Peter and his varied work colleagues for an excellent job...


Windows & Doors Sussex
Liz & Nigel – 20th Dec 2019

Brilliant products.


Windows & Doors Lydd
Mr Roger Anthony – 6th Dec 2019

Thanks for the work. I am very impressed with the amount of works that have been completed. You have done...


Windows & Doors Heathfield
Mrs Sedgemore – 1st Jan 2019

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County Windows (Heathfield) Limited of Unit 17 Ghyll Industrial Estate, Heathfield, East Sussex TN21 8AW (Registered No. 07451429) is a credit broker and is authorised and regulated by the Financial Conduct Authority. Credit provided by Hitachi Personal Finance, a trading style of Hitachi Capital (UK) PLC, authorised and regulated by the Financial Conduct Authority (Registered No. 704348).