Product Warranties

Protected for Years to Come*

Which? Recommended

Trusted Installer

Trading Standards

Buy with Confidence

Product Warranties

Protected for Years to Come*

Which? Recommended

Trusted Installer

Trading Standards

Buy with Confidence

Dorset Windows 10-Year Guarantee and Aftercare Service

At Dorset Windows, we don’t just install your doors and windows – we stand by their high quality for the long haul.  Every installation comes with our comprehensive 10-year guarantee, giving you complete peace of mind that if anything goes wrong due to manufacturing or installation fault – we’ll put it right, free of charge. 

Whether it’s a minor adjustment or replacing a faulty unit, our dedicated service care team is on hand to help. With a highly trained service engineer and a fully equipped van ready to respond, we’ll make sure your home remains secure, efficient and looking great for years to come.

WARMroof Interior with Skylights and BiFolds

Quality You Can Trust, Support You Can Rely On

So, what’s covered? For a full ten years from the date of installation, we’ll repair or replace any part of your windows or doors that develops a fault due to defective materials or workmanship — including issues like condensation between the panes of sealed glass units.

All labour and materials are completely free of charge, if your purchase has been paid for in full.

Book a Free Quote
Call us on 01202 825225

What’s Not Covered

Our Service Care Promise doesn’t cover damage or faults caused by:

  • Everyday wear and tear
  • Accidents, misuse, or neglect
  • Alterations or repairs not carried out by us
  • Condensation that occurs on the inside or outside surfaces of the glass

(Full details are available in our warranty terms and conditions.)

Built on Experience, Backed by Quality

With decades of experience and long-standing partnerships with trusted suppliers, we only use products we know will stand the test of time. That’s why we can confidently offer such a comprehensive aftercare service — and why homeowners continue to choose us year after year.

Our commitment doesn’t end once the installation is complete. Whether it’s a question or a valid service visit, we’re here for you — today, tomorrow, and for years to come.

Call us on 01202 825225
WARMroof Interior with Skylights and BiFolds

Investing in a Greener Future

Alongside our dedicated service engineer is our new hybrid service van. We’re proud to support a more sustainable future and implement changes which help to improve our carbon footprint – whilst continuing to deliver the fast, reliable aftercare our customers expect. Just another way we’re investing in the future, our community and our planet.

Find out more about our hybrid van
A red van displaying "Dorset Windows Ltd" and contact details, parked outside their showroom with a ladder on top.

Please note: Our 10-year guarantee does not apply to blinds within glass. Any other exclusions, where applicable, will be clearly stated at the time of purchase