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20 Year Warranty

Unique 20 YEAR WARRANTY ON GLASS SEALED UNITS with Super Spacer Energy Saving.

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'A' Rated Windows

We only manufacture and install the highest quality 'A' Rated Windows into customers’ homes

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Free Quotations

We are happy to help with all your enquiries and quotations. Call, email or complete our online form.

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Welcome

Welcome to Onyx Windows: the ultimate choice for your home. We are a friendly family run windows and door company with the added benefit of offering a total design and build service. With over thirty years’ experience in the industry we pride ourselves on building and maintaining our reputation, and delivering our customers with high quality, innovative products. Enhance your home with new windows and doors, not only achieving aesthetic improvements but also enhancing energy efficiency and added security.
Why Choose Onyx Windows.
 Local Family Business    Supply to Public & Trade
 Manufactured in house    Soffits and Facias
 Very Competitive    Fully Trained Installers

Learn more about Onyx Windows
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R9

A new window system that replicates 19th century timber.

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Warmcore

An innovative Aluminium Folding Door System.

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Conservatory

Extend your living space.

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Composite
Doors

Strength, Security and Performance.

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Energy Efficiency throughout
your home.

Combining energy-efficient frames and insulating glass is critical to deliver the required overall window thermal performance. .

What our customers say

 
User

Mr Bannon

Mr Bannon was recommended to Onyx Windows himself and would both use us again and recommend us himself.

From the initial inquiry to the final installation, the whole process was very efficient and skilful. Very happy with the end result.

User

Mr & Mrs Thompson

Mr and Mrs Thompson were over the moon that Onyx personnel were courteous and professional throughout.

Our new conservatory is GREAT and we would like to thank all involved. We would not hesitate to use Onyx for any future works.

User

Mr & Mrs Wood

Graham fitted our windows with great professionalism, taking great PRIDE in the work he was doing, which I can honesty say is rare these days.

Max was extremely helpful from the outset, assuring us of the companies attention to detail, and GOOD workmanship, which is ultimately why we chose Onyx Windows.

User

Mrs Allsop

All the work was carried out efficiently. I would never use anybody else as all the people I have come into contact with at Onyx, have gone the extra mile for me.

I always recommend Onyx to friends, because from START to FINISH I have always had a friendly, professional and quality service.