Every extension in our range, including our conservatories, orangeries, and home extensions, comes with a 20-year guarantee, which is double the industry standard. This guarantee gives you the confirmation that our extensions are made to last.


A new living space or home extension will be a permanent addition to your home, so it’s essential that it caters for your every need and fits in with your existing home setup. Please, don’t try and cut any corners.

It is poor form that some home improvement specialists don’t give out a guarantee. You will also find that there are guarantees that aren’t insurance backed. 5 Star is proud to provide a 20-year insurance backed guarantee (IBG) which is proof that our home extensions are expertly designed and manufactured and will offer sufficient quality over an extended period. It helps that we insist on using the finest materials and components to build our extensions, as should always be the case.

Windows Guarantee


We have our own self-imposed Environmental Policy, and our 20-year guarantee is a key part of it. By providing living spaces that last and last, it prevents a customer from needing to replace any element of the design further down the line, which leads to over consumption and harmful carbon emissions.

Most customers will only invest in a home extension once and they will pay good money to get one. So, it’s only right that they should get a 20-year guarantee and an extension that provides endless pleasure and an energy efficient atmosphere.

Windows Guarantee


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