Quality & Security Windows & Doors For Peace Of Mind

All of Test Valley Windows and Doors are manufactured with quality and security in mind, with the most advanced features, which we feel offers our customers complete peace of mind. We are a double glazing company covering Andover, Basingstoke, Winchester, Hampshire, Wiltshire, Berkshire, Dorset and Sussex that cares about our customers and what is installed. We have to uphold our high standards to achieve the very high percentage of recommendations which is the key to our success.

  • SAC Multi-Point security guaranteed locking as standard
  • Internally beaded
  • 28mm Double Glazed units with all windows achieving a BFRC rating “A” or better.
  • High-security Friction hinges
  • Security guaranteed Euro cylinders
  • Fullex security guaranteed door lock
  • Era Vectis security guaranteed composite door lock
  • 6.8mm laminated acoustic security guaranteed units available

Security Guaranteed

So confident are we in our secure locking systems that, in the unlikely event of a break-in succeeding through the failure of our windows and doors, we will repair or replace the damaged window or door through which access was gained, free of charge. The guarantee lasts for ten years from the date the product was first installed. Test Valley windows have an extensive range of window and door furniture available, and to qualify for this guarantee, the following criteria must be adhered to when ordering these products.

PVCu Doors
  • All glazing 6.4 laminated or 6.8mm acoustic glass to one pane
  • Yale high-security Euro cylinder
  • Fullex security hook lock with anti lift bolts
Door-Stop Composite Doors:
  • All glazing 6.4 laminated or 6.8mm acoustic glass to one pane
  • Era Vectis door lock
Casement Windows
  • All glazing 6.4 laminated or 6.8mm acoustic glass to one pane
  • SAC multi-point shoot bolt locking mechanisms
  • SAC bolt hinge protectors
  • SAC handles
Tilt & Turn Windows
  • All glazing 6.4 laminated or 6.8mm acoustic glass to one pane

Security Guarantee Terms & Conditions

The product installed must comply with the above specification. All doors and windows must be fully locked and not just closed on the latch or left in the locked vent position. They must be purchased and installed by Test Valley Windows. Access must have been gained, through the product for which a claim is to be made, from the outside of the property. This guarantee does not cover forced entry by the emergency services or police. The forced entry must be a criminal act. In the unlikely event of a claim, you simply supply us with the relating crime reference number and allow us access, to inspect the product to confirm compliance with the terms and conditions. The guarantee lasts for ten years from when the product was first installed. The guarantee will be void if the product is moved from its original installation position. Test Valley Windows decision regarding the validity of any claim is final.

Secured By Design

We offer a ‘Secured by Design’ window system, an official Police security initiative, that has been tested by an independent laboratory and meet rigorous standards.


Our window and door systems are tested to the following standards:

Double Glazed Units

BS EN 1096 – Covers coated glass
BS EN 1863 – Covers heat strengthened soda lime silicate glass
BS EN 12150 – Covers thermally toughened soda lime silicate safety glass
BS EN 14449 – Covers laminated glass and laminated safety glass
BS EN 1279 – Covers insulating glass units

PVCu Profiles

BS EN 12608 – Covers white PVC-u extruded welded hollow profiles
BS EN 6375 – Covers thermal reinforcing for air permeability, water and wind specifications

PVCu Windows & Doors

BS EN 6375 – Covers air permeability, water tightness and wind resistance
Pas 24 – Covers enhanced security window scheme for casement PVCu windows