How much does a Insulation Specialist cost in Cardiff?
Typical costs for hiring a insulation specialist in Cardiff, Wales. Insulation Specialists pricing is largely consistent across the UK, so the figures below are indicative national ranges. Your actual quote depends on job size, access and materials, so always get 2–3 quotes. Ranges reflect published 2024–25 UK trade-pricing guides.
Quotes below reflect 6 verified local businesses, 4 with websites
Insulation Specialist price guide, Cardiff (2026)
| Job type | Price range | Notes |
|---|---|---|
| Loft Insulation | £400 – £1000 | Top-up to 270mm |
| Cavity Wall | £500 – £1500 | |
| External Wall | £8000 – £15000 | Whole house EWI |
| Underfloor | £800 – £2500 |
Prices updated 2026-08-23. Actual quotes may vary by job complexity and contractor.
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Frequently asked questions
How much does insulation cost?
Loft insulation is typically £400–£1,000 and cavity-wall £500–£1,500; external solid-wall insulation is £8,000–£15,000 for a whole house.
Are there grants for insulation in Wales?
Schemes like ECO4 and Nest can cover or subsidise insulation for eligible households, worth checking before you pay.
What is the best-value insulation?
Loft and cavity-wall insulation give the fastest payback; solid-wall insulation costs more but suits older stone/brick homes.