<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2750563055187690&amp;ev=PageView&amp;noscript=1">

Earthwool® Glasswool Insulation

Earthwool® Glasswool, sustainable fibreglass insulation.

Earthwool® Glasswool Insulation

12 Months

Interest Free

*T&C Apply

Why Earthwool® Glasswool?

Earthwool® Glasswool insulation is a high performing, quality and economical fibreglass insulation, that is manufactured by Knauf and Earthwool® Glasswool has practically no smell.


Thermal performance

Thermal performance

ES-Low Cost




No added formaldehyde

No added formaldehyde


Made from up to 80% recycled glass


Extremely durable


BRANZ appraised


ECOSE® technology

Natural colour

Natural colour

50 Year Warranty

Earthwool® Glasswool offers a 50 year warranty guarantee, so you can have confidence that it will last.

Earthwool® Glasswool Insulation FAQs

Do you have interest free options available for your Insulation purchases?

Yes, we have a range of interest free payment options available. Find out more about what interest free payment options may be available to you.

What is Earthwool® Glasswool made of?

Earthwool® Glasswool is made from fibreglass. It is made using up to 80% recycled glass and sand.

Is Earthwool® Glasswool BRANZ appraised?

Earthwool® Glasswool is BRANZ appraised. All our Insulation products are BRANZ appraised.

Does Knauf manufacturer Earthwool® Glasswool?

Yes, Knauf are the manufacturers of Earthwool® Glasswool.

Home heating & insulation

Get a Free In-Home Assessment

Create a warmer, drier and healthier home today, from the best people at the best price.

Why EnergySmart?

We pride ourselves on our trustworthy, friendly and professional service, offering expert advice, assessment and installation of a range of Insulation and Heat Pumps that are best for you and your budget.

Call us now and our friendly team will make a booking for a safe in-home measure and quote  at a time that suits you.

0800 777 111

Mon – Fri: 8.00am – 5.30pm

Closed Saturdays, Sundays and Public Holidays