
PVC U windows have always been energy efficient. But now thanks to new government building regulations, there are minimum standards of energy efficiency that window, door and conservatories fitted in the UK must meet.
The regulations are known as "Document L" (Document J in Scotland) and they set energy efficiency targets that reduce heat loss from frames and glass to help Great Britain meet its commitment to reduce green house gases under the Kyoto accord.
To ensure that you fit replacement windows that meet these new standards, the Glass and Glazing Federation (GGF) and other industry bodies. With government encouragement, have set up FENSA - the Fenestration Self-Assessment scheme. Companies in the FENSA scheme will provide you with a certificate confirming that their windows comply with the new regulations. Installations by FENSA - registered companies are subject to random inspections by the schemes representatives.

The UK's leading solution for thermal insulation in homes and public buildings, Pilkington K Glass™ is a low emissivity coated glass which is easily stocked, processed and installed. Pilkington K Glass™ has been established for more than 15 years making it the trusted solution for meeting Building Regulations concerning energy efficiency.
Pilkington K Glass™ usually forms the inner pane of an Insulating Glass Unit (IGU) such as Pilkington Insulight™ Therm. The coating reflects heat back into the room whilst also letting in free heat from the sun known as passive solar gain. Pilkington K Glass™ helps windows to achieve high Window Energy Ratings to demonstrate compliance with energy saving Building Regulations Part L.

Since its establishment in 1983, FairTrades has been successfully supplying its contractors with the best in business support and promotion.
FairTrades also provides an efficient .service that assists homeowners throughout the UK to make a more informed choice of Trade Professional, this in turn attracts more business for FairTrades contractors.

The Kitemark® is the world's premier symbol of trust, integrity and quality. Manufacturers having this associated with their product or service will reassure customers and specifiers alike that they have satisfied the most rigorous of quality processes.
Basfords Trade Windows is proud to be accredited with the BSi Kitemark
Synseal products Shield (Kitemark BS7413, BS7950/7413) and Synerjy (Kitemark BS EN 12608, BS7950/BS EN 12608) have also been accredited with the BSi Kitemark.

At the heart of what we do is our national online database, the UK's largest register for pre-qualified contractors and consultants. In terms of efficiency, time and cost saving and best practice, Constructionline is proven to deliver for public and private sector organisations alike. Our service is recommended by the OGC Common Minimum Standards and The Local Government Task Force.