Safer, Quieter, Warmer and more Stylish than ever

uPVC double glazed windows by Jeffrey James are made to last. Manufactured to the highest quality, they won't peel or flake, rot or rust to keep them looking their best all they need is an occasional wipe down with soapy water. All our windows are A+ energy rated as standard and some of our specialist designs are the warmest windows that we have ever made!

Our windows come with a comprehensive 10-year guarantee on materials and workmanship as standard with our contemporary designs offering a 12 year guarantee. They are more secure than ever with each one made-to-measure to ensure a perfect fit, they come complete with a sophisticated multi-point locking mechanism which exceeds the current British Standards and has been awarded 'Secured by Design' an official police security initiative award that is only awarded to products that pass stringent testing. The windows also comfortably exceed the latest Building Regulations for energy efficiency. Take a closer look at the styles that we offer to see what makes Jeffrey James Stand out from the crowd.

Efficiency and Innovation is part of our ethos. When making or designing a product, we always look to improve on what the current market place has to offer. Our continued progress contributes to the energy savings of your home. All our windows offer either a double or triple glazed unit with the latest technology to achieve the best results.

By ensuring that our windows adhere to the above, our warmest double glazing unit has an impressive 1.3 U-value and an A+ 12 Rating. Our Triple glazed units have achieved an unprecedented A+ 27 and a U-value as low as 0.7 and when you compare these to others on the market place you can see why we are so proud of these windows.