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We Supply Slimline, Ultra Performance, Aluminium Bi-fold Doors We Supply Slimline, Ultra Performance, Aluminium Bi-fold Doors
We Manufacture Ultra-performance, PVCu Bi-fold Doors for Trade and Homeowners We Manufacture Ultra-performance, PVCu Bi-fold Doors for Trade and Homeowners
We Fabricate Energy Efficient Trade Frames on-Site We Fabricate Energy Efficient Trade Frames on-Site
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Windows Doors Conservatories Bi Fold Doors Patio Doors
Welcome to Abacus Windows, Chelmsford Abacus Windows are your local, professional manufacturers and installers of top quality PVCu windows, doors and conservatories. As a family run business located in the heart of Chelmsford we have been manufacturing and installing windows since 1996 to local installers, general public and commercial contractors.

We offer a tailor made service that works closely with their customers. We are confident that we will guide you through your home improvement ideas converting them into a reality, our reputation relies on it. We openly invite you down to our manufacturing factory to see your windows as they are being made to give you full confidence in the work we do.

Click the tab in the top left to see some of our projects!
Aluminium Bi Fold Doors Superior, slimline, aluminium, bi folding doors made to measure and available in a wide range of powder coated finishes and free quotes available. READ MORE Replacement Windows Whether you're a trade customer or a home-owners, we fabricate all our energy efficient windows onsite, on time and on budget. Get a quote today. READ MORE Quality Doors From sliding patios to composite doors, we can fabricate a wide range of doors to suit your requirements. Get a door quote today or read more. READ MORE Conservatories Create extra space with a new conservatory built to your exact specification, we can deliver on quality, service and finish. Get a conservatory quote today. READ MORE
upvc windows, energy efficient

Energy Efficient Windows

Offering a sculptured or chamfered edges and available in a variety of colours and foils, our superior windows are energy efficient and offer the best acoustic performance on the market.

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Customer Reviews Can't decide if we are the right company for you? Click below to see reviews which will help you make a well informed choice. Or maybe you would like to leave us a review? View or leave a review for us

Solid Composite Doors

Ultra-performance composite doors, offering style and security and available in a selection of vibrant colours and designs. Our doors are made to measure and installed to perfection.

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composite doors
upvc conservatory

Create Extra Space

Tailored UPVC conservatories available in many different shapes and sizes. Offering superior energy efficiency complimented by double glazed windows and a variety of doors styles.

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