Contact Us

0800 169 5505
Tel: 0208 561 7791
Fax: 0208 561 8080


london double glazing



JS Windows are specialists in the provision of Windows and Glass.
We manufacture and install both uPVC Windows and Aluminium Windows. We offer a wide variety of Windows such as:

  • Arch Windows
  • Bay Windows
  • Sash Windows
  • Secondary Glazing
  • Casement Windows

Our PVCu profile is manufactured to the highest standards and are capable of:-

  • withstanding cold weather
  • UV light resistant to maintain colour and appearance and prevent the PVCu profile from degrading, bending or warping over the years.

Designed to provide strength, superior thermal properties and excellent weathering performance they will retain their pristine appearance year after year with minimum of maintenance. Suitable for commercial or domestic buildings, in both replacement and new build markets.

All outer frames are fully reinforced with aluminium, the sashes are fully reinforced with galvanised steel.

Structural strength is enhanced through the use of steel through the internal chambers of the profile and to further increase stability and strength all fixings and hardware are secured to the reinforcement.

All window frames are available in a range of Glass textures, below is a sample of the Glass textures we have available.

Below is a sample of just some of the type of Windows we are able to supply.


Bay Window

Bay Window

Fire Escape Window

Casement Windows

Bay Window

Optional Sash Horn

Light Oak, Rosewood & White

Feel free to contact us if you would like more information, we have many other Window designs available.

Click here to view our Glass specifications and explore the options available to you:- laminated or toughened (for security & safety), bevelled or stained (to your own designs), lead square or diamond, Georgian Bar and Obscure Patterns (for style & privacy) and Argon filled units for extra insulation properties (available in conjunction with any glazing application).