Smart Home Energy 
If you're in a draughty rental or older home with single-glazed windows and can't justify secondary glazing, Duck's shrink film creates a sealed air gap for about £4 per window — fit it in an hour, peel it off in spring, no landlord permission needed.
Problem it solves
Reduces heat loss through windows by creating an insulating air gap with shrink film, cutting heating costs during winter months.
Who it's for
Renters and homeowners in draughty homes with single-glazed or poorly sealed windows who want to reduce heating bills without replacing windows.
Why we recommend
Quality product from a well known brand.
Savings
- Typical annual saving
- £40–£100/year depending on number of windows treated and heating costs
- Payback period
- Under 1 year
