We've done the sums for you
Nine new windows for the cottage
Heating now
£2,000
With new windows
£1,380
You save £620 a year. The windows cost £7,400 and pay for themselves in about 12 years, plus no more draughts from the sills.
A rough guide based on your usage. Exact figures once we've measured up.
Mark Holloway, windows and doors