Haxby Builders - Windows & Doors

Sliding Sash Windows

We manufacture our sliding sash windows using the Renaissance profile system.

The PVCu profile is manufactured to the highest standards and has been specifically designed to:-

  • Offer reinforced strength as standard
  • Energy saving thermal properties
  • Excellent weathering performance
  • Low Maintenance
  • Retain their pristine appearance year after year.

All our windows manufactured to your exact specification and measurements and are suitable for commercial or domestic buildings, in both replacement and new build markets.

Front to Back Dimensions:

Outer frame – 135mm
Top & Bottom Sash – 50mm
Integral Cill – 150mm
(180mm or 225mm cills optional)

Min/Max Size Constraints:

Width 350mm – 1500mm
Height 700mm – 3000mm

NOTE: Multiple windows can be coupled or formed into 90 degree & 120-150 variable degree bays.

Fire Escape Option:

Regulations require a clear opening of 0.33m2 with a minimum dimension of 450mm in both height and width.

This is needed to meet the criteria for fire escape design (commonly first floor bedrooms and above).

If this is not possible then the option, demonstrated below, can be used; The special lower sash tilts inwards and slides up to provide the extra space required for means of escape.


The prices shown opposite are for the standard white window. Prices can be given on request for both Cream and Woodgrain, so please get in contact if you require any further pricing information.