All guarantee time periods come into effect from the point of collection or installation.

  • 10 years - All white uPVC products are guaranteed against discolouration and weather performance during this time period.
  • 5 years - All coloured or foiled uPVC products are guaranteed against discolouration and weather performance during this time period.
  • 1 year - All hardware and working parts.
  • 1 year - Polycarbonate roof sheets for conservatories.
  • 1 year - External uPVC trimmings.
  • 5 years - Composite door panels.
  • 5 years - Glass sealed units are guaranteed from failure during this time period. Failure constitutes misting between glass panels.
  • 5 years - uPVC door panels are guaranteed against warping or twisting during this time period.



The above guarantees do not cover the following:

Fair wear and tear, wilful damage, abnormal storage or working conditions, accident, negligence by you or a third party, inclement weather where it would not be reasonable to expect the product to withstand such weather, damage due to subsidence, penetration of insects, misting or mould between polycarbonate sheets.

Minor imperfection in uPVC or glass will only be covered under guarantee subject to our supplier's recommendations.

The above guarantees will not be valid if you have not followed manufacturers guidance for use and maintenance.

Stained glass and leadwork are not guaranteed against fading or discolouration.

uPVC products such as panels are the closest match available from our supplier at the time of purchase. Please ask to see colour samples before ordering, as colour differences cannot be rectified after they have been ordered.

We give no guarantee that the installation of the product will eliminate or reduce condensation from your property, as condensation is inevitable in any property that is not adequately ventilated.

These guarantees are not transferable.

All claims under these guarantees must be made in writing to Crown Windows & Doors Hull Ltd.

These guarantees are in addition to, and do not affect, your legal rights as a customer in relation to any products or services that are faulty or not as described.