earthwool glasswool warranty

Our Earthwool® glasswool range of insulation comes with a 50 year warranty so you can install it with confidence.

We are proud of the quality of the Earthwool® glasswool insulation we produce and back it up with a 50 year warranty. BRANZ also independently certify that when properly installed, Earthwool® glasswool insulation will have a serviceable life of at least 50 years.