Loft Insulation
The easiest, cheapest insulation. Stop 25% of heat escaping through your roof. Often free with grants
Get Free Quotes from InstallersWhat is Loft Insulation?
Loft insulation is mineral wool laid between and over the joists in your loft space. Heat rises, and without insulation, up to 25% of your home's heat escapes through the roof. Loft insulation stops this heat loss.
It's the cheapest, easiest insulation to install - usually taking just a few hours. Current recommendations are for 270mm depth. If your loft has less than this (or none at all), topping up or installing can save you £200-£400 per year on heating bills.
Why Choose Loft Insulation?
Cheapest Insulation
Lowest cost per m² of any insulation type
Quick Install
Typically completed in 2-4 hours
Big Savings
Save £200-£400/year on heating bills
Often Free
ECO4 and GBIS grants cover cost for eligible homes
Warmer Home
Stop 25% of heat escaping through roof
Long Lasting
Lasts 40+ years - minimal maintenance
Loft Insulation Costs
Free with ECO4 or GBIS Grants!
Most eligible households get loft insulation completely free through government grant schemes
Quick Grant Finder
Answer 3 quick questions to see which grants you may qualify for
Loft Insulation Options
Blanket Insulation
Mineral wool rolls laid between joists
- Most common and affordable
- 270mm depth recommended
- Easy to install and top-up
Blown Insulation
Loose-fill material blown into loft
- Fills awkward spaces
- Very quick installation
- Good for irregular joists
Ready to Insulate Your Loft?
Get free quotes from certified installers. Often free with grants
Get Free Quotes from Installers