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Washington Aluminium Services Ltd UPVC double-glazed windows are manufactured using the industry-lead British Profile Systems. This carries all the major quality accreditations, including British Standard Kitemark and British Board of Agreement (BBA) approval.

We specify the leading  UPVC window frame system – 70mm Fully Sculptured. Our supplied and fitted double-glazing windows were first introduced into the UK back in the late 1970's. Our UPVC double-glazing windows have developed considerably overtime to become the market leader it is today.


This system carries the leading technology and benefits of PVC-U double-glazed windows whilst maintaining the aesthetics and characteristics of traditional timber frame windows.


Our UPVC window frames are fully welded, are internally glazed, carry stainless steel friction stays and are re-enforced with galvanised steel and RCM (Recycled Composite Material). 


Our double-glazed windows, triple glazed windows go through more internal quality checks than any other window and door fabricator nationally. Our fabrication methods and the resulting product has been tried and tested for the past 30 years.



Explore our latest supplied and installed uPVC windows in and around Washington.

Available in a wide choice of colours and styles, our full range includes 19 finishes, all designed to meet the needs of modern, design-conscious homeowners.

Guaranteed not to crack, peel or fade, your doors will maintain their authentic looks with virtually no maintenance. You can also select from an extensive range of patterned glass options.

upvc door colours


Our products offer the highest standards in quality and performance. We are pleased to offer an exclusive 15 year performance guarantee on all GT Glazing profile and products, including white and foil laminate colours.

Our products are strong and durable by design. Advanced locking systems are fitted to our all products, ensuring your home is kept safe and secure. Our products meet the requirements of ‘Secured by Design’.

Our products are fully sculptured, giving a shaped and curved appearance for extra character. Personalise your windows and doors with a traditional grain-effect foil, or a sleek and smooth spray-painted RAL colour finish.

For maximum thermal efficiency, select our high-performance triple glazed windows. Featuring Soft Coat Xtra glass and Argon gas fill, Washington Aluminium Services Ltd triple glazed windows achieve whole window U-values as low as 0.8 W/m 2 K.

Washington Aluminium Services Ltd products are thermally efficient by design; multichambers within the profile, combined with energy efficient glazing, reduces both heat loss and home heating bills. All our double glazed casement windows achieve “A” ratings as standard.

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