Calculate your external wall insulation cost
External wall insulation cost per m² in Glasgow
External wall insulation by property type in Glasgow
The UK figures are current property examples; the city column applies the same moderated 18% regional weighting as the live calculator.
UK £5,000–£7,000 · avg £6,000£4,950–£6,950 · avg £5,950
UK £6,000–£10,000 · avg £8,000£5,950–£9,900 · avg £7,950
UK £14,000–£20,000 · avg £17,000£13,850–£19,800 · avg £16,850
UK £15,000–£21,000 · avg £18,000£14,850–£20,800 · avg £17,850
UK £20,000–£30,000 · avg £25,000£19,800–£29,750 · avg £24,750
Current UK system benchmarks
What can change a real Glasgow quote?
- External wall area
- EPS, mineral wool or board system
- Render or cladding finish
- Scaffolding
- Gutter and pipework changes
- Existing wall condition
Local planning considerations
Scottish projects can have different regulatory and grant contexts, so check current official rules alongside the cost estimate where relevant.
- Scottish building standards and scheme rules should be checked separately from any England-and-Wales guidance linked elsewhere on the site.
- Tenement or managed-flat work can add common-property, access and approval considerations beyond the physical installation cost.
- Traditional masonry and older fabric may need specialist repair specifications that are not represented by a simple regional multiplier.
How the regional model works
The live external-wall-insulation calculator uses only 18% of the broad Scotland regional difference because insulation boards, fixings and render systems contain a substantial nationally priced material component. The resulting Glasgow EWI factor is 0.991× and is applied to the current £150–£200 per m² installed benchmark.
Sources
External Wall Insulation Cost: 2026 UK Guide
Published / checked: July 2026
Used for: Installed external-wall insulation cost-per-m² and property-type ranges
Frequently asked questions
How much does external wall insulation cost in Glasgow in 2026?
The current UK installed benchmark is £150–£200 per m², averaging about £175 per m². Using the same moderated regional factor as the live calculator gives a Glasgow planning rate of about £149–£198 per m².
How much is external wall insulation for a semi-detached house in Glasgow?
The current UK semi-detached example is £14,000–£20,000, averaging £17,000. Applying the moderated Glasgow model gives about £13,850–£19,800, with a modelled midpoint near £16,850.
Why is the Glasgow EWI adjustment smaller than the broad regional factor?
External wall insulation contains a large material and system component, so the live calculator applies only 18% of the broad regional difference rather than treating the entire installed price as locally variable labour.
What can make external wall insulation more expensive?
Wall repairs, scaffolding, architectural detailing, moving rainwater pipes and services, premium finishes, difficult access and larger exposed wall areas can all increase the final quote.