How can you tell if you have cavity walls?
Is it messy to install?
Insulation without the price tag
The important stuff
1 Savings information is provided from the Energy Saving Trust website and based on an average semi-detached household with an old boiler rating of G. Savings will vary depending on the size and thermal performance of your home. Figures are based on fuel prices as of November 2018.
2 Installation cost is subject to survey and based on installing cavity wall insulation on a mid terrace two or three bedroom gas heated property.