Light green composite door surrounded by sash windows and flowers

Welcome to

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Serving Milton Keynes, Northampton, and the surrounding area, we have been installing high-quality windows, doors, conservatories, and rooflines since 1981. As an independent, family-run business, we will always put you first.

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Why Choose Custom Glaze

Family Run Business

Because we are a family-run business, we will be able to provide our services with a personal touch.

Our Own Fitting Teams

We have our own professional fitting teams that we personally ensure are properly trained.

Established In 1981

With several decades of experience, we are market-leading experts in installing double glazing.

Local Company

As we are local to Milton Keynes, we are very knowledgeable about the area.

Which? Trusted Trader

Because we are a Which? trusted seller, you can have peace of mind about our products and services.

Made In The UK

Our products are made in the UK so that it is easier to check them for quality.

Custom Glaze showroom front area

Deacades of Industry Experience

We are an independent, family-run double glazing business with over 40 years of experience in Milton Keynes. Our windows, doors and conservatories are fully backed with a ten-year insurance guarantee and topped with our founding principle of providing our customers with high-quality products, professional design and installation and personal after-sales service, all guaranteed.

It’s not only in our showroom where you can see Custom Glaze installations. Being a local company, we have an added advantage in that you can almost always be directed to a property near your home to see for yourselves how smart our products look once fitted – it’s a rare street that does not have some of our work on show.

We also have the most extensive showroom in the area, so pop in or call for a quote at 01908 650 140.

triple glazed white upvc bay window with a cream sofa in front

Planning & Regulations Requirements

At Custom Glaze, we understand that different areas and buildings are unique and have different regulations and planning requirements. If you live in a heritage conservation area or a brand-new building, then get in touch with our friendly team via our contact form.

We’ll be more than happy to explain and help you receive a window, door, or extension installation or repair that meets all the modern standards.

Happy Customers

We’ve used Custom Glaze to install sliding doors across the back. of our house and have just had a new front door fitted. Both times, we had


Custom Glaze was fantastic; no damage was caused to the tiles where the windows were removed, and they cleaned up after themselves. Very efficient,

Jeff Ankin

Custom Glaze replaced a 31-year-old conservatory. I took the salesman’s advice and now have a fantastic garden room that surpasses expectations.

Tom Primett

Latest News

Keep up to date with us and check out our latest news here.

Frequently Asked Questions

What areas do you serve?

We serve Milton Keynes, Northampton, and the surrounding area, including Leighton Buzzard, Buckingham, Bicester, Bletchley, and Newport Pagnell. If you would like to see if we serve your location, then please get in touch with a member of our team today.

What is double glazing?

Double glazing is a type of glazing that consists of two layers of glass. These layers of glass are stacked on top of each other, and the gap between them is filled with argon gas. This layer of glass and gas makes it more difficult for the cold to get into your home, as the double glazing creates a physical barrier.

What is secondary glazing?

Secondary glazing is when another window is put on the inside of your existing window. This addresses similar issues that double glazing does, such as cold, draughts, condensation, and noise pollution.


Victorian style home with three extensions with a large front lawn

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