Replacement Windows

If you’re looking for bespoke replacement windows in UPVC or Aluminium, UK based double & triple glazing manufacturers and installers Hazlemere carefully design all our windows specifically to your requirements. We manufacture all our thermally efficient energy rated replacement windows to the highest possible standards ensuring our range of aluminium windows, sash windows and double glazed UPVC windows will be sure to transform your home - whether you are looking for windows with traditional good looks or a more contemporary or unusual appearance.

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About our windows and doors

Understanding that choosing replacement windows is a big decision, we do everything we can to help it be as easy as possible. Watch our video and discover all the features and benefits of our fabulous range.


View our range of window designs


Find out more about our window materials


Find out more about our glazing options


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

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or call us today on 08000 825 825.

Customer Reviews

Excellent - tidy, efficient, quiet and considerate. Thank you


Windows & Doors Great Missenden
Lucinda Drought – 16th Jan 2020

Excellent Welwyn Garden showroom with helpful staff very nice welcome by receptionist. Installation team worked well together (Ashley & James)...


Windows & Doors Welwyn Garden City
Susan Richardson – 14th Jan 2020

Professional and efficient installation in a morning. Pleased with product.


Windows & Doors High Wycombe
Mark Moorcraft – 14th Jan 2020

Conservatory / Orangery Maidenhead
Jane Almond – 13th Jan 2020

Windows & Doors Woking
Stuart Welch – 8th Jan 2020

Very pleased with product and the installation.


Windows & Doors High Wycombe
Michael Stephen Pitwell – 7th Jan 2020

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© 2020 Hazlemere Window Company Ltd.

Credit is subject to status and affordability. Terms and conditions apply. Finance on windows & doors is available to a maximum loan value of £50,000 with zero deposit. Finance on conservatories is available to a maximum loan value of £30,000 with a 15% deposit. £1,000 minimum order value applies to all finance options. Authorised and regulated by the Financial Conduct Authority. Hazlemere Window Company Limited at Cressex Business Park, Wellington Road, High Wycombe, Buckinghamshire HP12 3PR (Financial Services Registered No. 796507) 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). 12/2019