Cost guides › External wall insulation › Wales
United Kingdom
External wall insulation cost in Wales
Most homeowners pay £20,000 – £33,400 (mid-range, typical £25,700, including VAT), 1% below the national average.
Most homeowners pay
0% VAT on installing energy-saving materials (heat pumps, insulation, solar) until 31 March 2027
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mid-range, typicalPrice levels in Wales
| Typical | Labour | Materials | |
|---|---|---|---|
| Basic | £23,100 £18,000 – £30,000 | £6,567 | £16,522 |
| Mid-range | £25,700 £20,000 – £33,400 | £6,567 | £19,108 |
| Premium | £30,200 £23,500 – £39,200 | £6,954 | £23,223 |
Why prices in Wales are different
Labour makes up about 26% of a mid-range external wall insulation job, around 201 hours of trade work. Tradespeople in Wales cost about 4% less than the national average (official wage data: ONS Annual Survey of Hours and Earnings, tables 14 and 15), while materials are priced much the same across the country. That is why the total comes out 1% below the national figure.
Wales ranks 8 of 11 UK regions for this job, from most to least expensive.
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Other home projects in Wales
Frequently asked questions
How much does external wall insulation cost in Wales?
A mid-range job typically costs £25,700 including VAT, with most homeowners paying between £20,000 and £33,400. A basic job is about £23,100 and a premium one about £30,200.
Is external wall insulation more expensive in Wales than the national average?
Wales: 1% below the national average. Labour makes up about 26% of a mid-range external wall insulation job, around 201 hours of trade work. Tradespeople in Wales cost about 4% less than the national average (official wage data: ONS Annual Survey of Hours and Earnings, tables 14 and 15), while materials are priced much the same across the country. That is why the total comes out 1% below the national figure.
How much of the price is labour in Wales?
About 26% at the mid-range level, around 201 hours of work at local rates. The rest is materials, equipment and disposal, which vary much less between regions.
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