Spray Foam Removal Cost UK — 2026 Price Guide
What does spray foam removal actually cost in the UK right now? In 2026 the realistic range is £1,500 to £12,000+, and the majority of homes settle in the £2,500–£6,000 band. Where your job sits depends on whether the foam is open or closed-cell, the size of the roof, how easy the loft is to work in, and what the rafters look like once they are exposed.
Average UK spray foam removal costs (2026)
Across our network of UK spray foam removal specialists, the average cost in 2026 is approximately £3,800 for a typical semi-detached. Below are realistic ranges by property type:
| Property | Open-cell | Closed-cell | Time |
|---|---|---|---|
| Mid-terrace (~40 m²) | £1,500–£2,800 | £2,800–£4,500 | 1–2 days |
| Semi-detached (~60 m²) | £2,200–£3,800 | £3,800–£6,500 | 2–3 days |
| Detached (~90 m²) | £3,200–£5,500 | £5,500–£9,500 | 3–5 days |
| Large detached (120 m²+) | £4,500–£7,500 | £7,500–£12,000+ | 5–7 days |
| Bungalow (~80 m²) | £2,800–£4,800 | £4,800–£8,000 | 2–4 days |
Cost per square metre
Most UK spray foam removal specialists price by the m² of foam to be removed:
- Open-cell foam: £40–£70 per m²
- Closed-cell foam: £60–£110 per m²
- Loft floor / horizontal foam: £35–£60 per m²
What affects the price?
- Foam type — closed-cell is denser and harder to remove
- Foam thickness — 100mm+ takes considerably longer than thin coats
- Accessibility — restricted lofts, low headroom or external scaffolding add cost
- Timber condition — additional treatment if rot or decay is found
- Waste disposal — spray foam is bulky non-recyclable waste
- Location — London and the South East tend to be 10–20% higher
What's included in a typical UK quote?
- Hand removal of all spray foam from rafters and roof deck
- Dust extraction and protection of the property
- Full waste removal and disposal certificates
- Timber inspection report
- Mortgage-ready removal certificate
Is it cheaper to leave it?
No. The cost of leaving spray foam in usually appears as a £20,000–£60,000 reduction in property value when you come to sell, or a refused mortgage on remortgage. Removal is the only cost-effective fix.
Frequently Asked Questions
In 2026 UK spray foam removals run from £1,500 up to £12,000+, with around £3,800 being typical for a semi-detached home. Closed-cell jobs sit at the higher end of the range.
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