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WARMroof with Velux roof lights

Prefix WARMroof
Prefix WARMroof® can be specified with a Velux rooflight. We only use Velux as it’s a quality brand and a name that we can trust. All Velux rooflights are pre-fitted in the factory to ensure speed and quality of installation.

The Prefix WARMroof® is our award-winning solid roof and is the most configurable and structurally robust, insulated and tiled roof in the UK. Thanks to our Prefix WARMroof® technology, our building control approved roof provides the highest levels of thermal efficiency.

The Prefix WARMroof® is designed to keep you warm in winter and cool in summer for all year round comfort. Perfect for conservatory roof replacements and refurbishment projects or new extensions, the Prefix WARMroof® will give you a highly functional, comfortable everyday living space to relax or entertain in.

Energy Efficiency

First class thermal efficiency

U Value

Thermal insulation U-value of 0.18 W/m2K as standard

Versatile

Customisable design. The Prefix WARMroof® is incredibly versatile to perfectly fit your home. No matter what shape or size, there’s a Prefix WARMroof® for you.

Building Control Certification

Building Control Approved

Find out more on the WARMroof website

Brochure Downloads:

Prefix WARMroof Brochure

Prefix WARMroof Collection

Prefix WARMroof Maintence Guide

Prefix WARMroof
Maintenance

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Visit  our showroom at Unit 78 Sandford Lane Industrial Estate, Sandford Lane, Kennington, Oxford OX1 5RP

Local Showroom with Friendly Staff Offering Expert Advice

Andy Glass Windows takes pride in offering:

Help planning your project

We’ll talk through your ideas and help you work out what’s right for your home. We can arrange a quote and organise a visit to your property or our showroom. 

Expertly installed with attention to detail

Our trained team takes care on site, fitting everything with precision and leaving things tidy. We’ll remove and recycle your old windows and doors as part of the service.

Supply-only options available

If you’re working with a builder or have a contractor in place, we can supply the products you need. A good option if you’re managing your own project.

Support after installation

We’re on hand if you need us after the job’s done. You’ll receive full manufacturer warranties and we’ll register your installation with FENSA for you.

Virtual showroom tour coming soon

Call us on 01235 530035
Showroom visits available Monday to Friday
preferably by appointment.

Please contact us to arrange.

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Office and Showroom Address:
Andy Glass Windows
Unit 78 Sandford Lane Industrial Estate, Sandford Lane, Kennington, Oxford OX1 5RP

T: 01235 530035
E: sales@andyglasswindows.co.uk

© Copyright 2000-2025 Andy Glass Windows | Company name - AGW Ltd trading as Andy Glass Windows | ID number - IFD66870 
Registered England & Wales | Company Reg. No. 02657318 


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