Who Are We?
Windows and Doors Milton Keynes & Northampton
Fenster Glazing deliver high quality uPVC and aluminium windows and doors to homes across Milton Keynes and further afield. Our expert installation service will provide you with home improvements that are designed to be the perfect mix of style and substance. We’ll leave you with a perfectly fitting installation that provides an excellent performance for years to come.



Customer Service You Can Trust
Customer service will make a huge impact on your own home improvements journey. Here at Fenster Glazing, we’re dedicated to leaving every customer completely satisfied with their new windows and doors. Going above and beyond other double glazing companies, we’ll take time and care to get to know you and your home. Your home will look better than ever with Fenster Glazing.
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FENSA Accredited Home Improvements Milton Keynes
You don’t have to take our word for the quality of our home improvements products and installations. We have a wealth of testimonials from past customers whose homes we have transformed with our windows and doors. Also, we have full accreditation from top UK authority FENSA, ensuring the thermal performance is top notch and that your windows are Building Regulation compliant.
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Thermally Efficient uPVC Windows and Doors
Fed up with draughts and cool temperatures inside your home? Then it might be time to upgrade to uPVC home improvements. All across the UK, including right here in Milton Keynes, homeowners are choosing uPVC windows and doors for their homes to increase thermal efficiency. With these new front entrance doors and double glazed windows, your home could be at a more consistent temperature throughout the year. You could even see a reduction in heating bills!
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The SureFlap Cat Flap
It's not just windows and doors that we specialise in. We also offer state of the art SureFlap cat flaps, the perfect solution to keep your cat safe while also offering freedom. The innovative system allows your pets to freely move between the interior and exterior of your home. A microchip in the collar means the flap will only open for your feline friend. This will help keep your home safe from potential intruders. If you're looking for a cat flap that grants freedom without any of the hassle, choose SureFlap.
Start Your QuoteFinance Available
Fenster Glazing offer finance across our range of products. This allows customers to pay for their windows and doors over a flexible timeframe that suits them. To find a payment plan that suits you, use our online finance calculator. This will provide you with all the details you need to find the perfect plan for you.
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Our Testimonials
There’s no better recommendation than those of our past customers. Take a look at what they have said about our home improvements products and installations.

Water Stratford
We recently completed work on a 300 year old property local to us in Water Stratford, near the stunning area of Buckingham. Our team has always enjoyed working in the Buckingham region, what with its vastly different architecture. No two projects are the same!
Eye catching flush sash windows were specified by the happy homeowner, who knew th...