Spray foam removal isn't a fixed-price service, but that's no reason to keep homeowners guessing. Below are guide prices for Plymouth homes, what moves a job up or down, and what a complete removal quote should include.
Guide Prices for Plymouth Homeowners
| Size of job | Indicative cost | Usually means |
|---|---|---|
| A slope, a section or a little loft | £1.5k – £3k | Foam on one slope, a trial area opened for inspection, or a compact loft that is easy to reach. |
| Both slopes of an average family house | £3k – £5k | Both slopes sprayed in an average family home, with reasonable access and typical bonding. |
| Large roofs, rigid foam or tricky access | £5k – £8k+ | Big or awkward roofs, rigid foam stuck hard to felt or slates, or very restricted access. |
| Measured rate | £40 – £80+ a square metre | Based on the sloping roof surface that has been sprayed, not the loft floor. |
Indicative Plymouth figures only — the fixed price comes after we’ve looked at the foam in person or through good photographs. A few roofs fall outside these bands.
Reading the per square metre figure
The m² guide refers to the sloping area of roof that has been sprayed, not the floor area of the loft. On a pitched roof the two slopes together are noticeably bigger than the floor below them. Purely to illustrate the arithmetic: 45 m² of sprayed roof at £40 to £80+ per m² would suggest roughly £1,800 to £3,600 or more. Smaller jobs often carry a minimum charge, so the per m² figure is most useful for medium and larger roofs.
Where different Plymouth homes tend to land
- Towards the lower end: partial or one-slope coverage, soft open cell foam, a clear loft and reasonable access — some smaller terrace lofts in Mutley, Milehouse or Mount Gould fit this pattern.
- Around the middle: both slopes sprayed in an average 3-bed semi or larger terrace, with typical bonding — common in Peverell, Crownhill and Plympton.
- Upper end and beyond: rigid closed cell foam on large or hipped roofs, foam bonded to bare slates, converted lofts with foam behind plasterboard, or tall period houses around Mannamead and the Hoe.
Treat these as tendencies, not categories. Two similar houses on the same Plymouth street can be priced quite differently once someone looks inside the loft.
What Affects the Cost?
Most of the cost is labour, so anything that adds time adds cost. The main factors are:
- Loft size — a bigger sprayed roof simply means more foam to cut away.
- Foam type — soft open cell foam usually comes off faster than rigid closed cell foam.
- Access — a tight hatch, low eaves, boarded floors or a long carry to the van all add hours.
- Roof condition — fragile felt or slates relying on the foam need gentler work and may need repair.
- How strongly the foam has bonded — the harder it grips timber and felt, the slower careful removal becomes.
- Waste disposal — removed foam is bulky and has to be bagged, carried out and disposed of properly.
- New insulation — nearly every loft needs fresh insulation laid over the ceiling afterwards.
- Photos or documentation — a dated photo record or written summary for a lender or buyer.
Why Prices Vary Between Plymouth Homes
Plymouth's housing is unusually mixed, and that shows in quotes. A two-up two-down in St Judes with foam on one slope is a short job, even if the loft is cramped. A detached 1960s house in Plymstock with a hipped roof sprayed throughout is a much bigger one. A bungalow in Plympton with a low-pitched roof can be slower than its size suggests, because the eaves leave so little room to work.
Practical details count too. Steep streets, limited parking in central areas and long carries from loft to van all add time, and waste has to be disposed of properly whatever the job size.
Open Cell Versus Closed Cell Cost Factors
Open cell foam is softer and usually comes away faster. Closed cell foam is rigid and grips harder, so it has to be cut and pared back — often taking noticeably longer for the same roof area. If you know which you have from a survey or old paperwork, mention it; otherwise, photos help. See our closed cell spray foam removal page for the detail.
Access and Roof Condition
A small hatch, a loft ladder that stops short, low headroom, boarded floors and stored belongings all slow things down. So does a roof covering in poor condition: brittle felt or slates that rely on the foam to stay put need gentler handling, and may need repairs once exposed. Repairs are a separate cost, and we’ll warn you on the quote if they look likely.
Photos, Reports, and Re-insulation
If a lender, buyer or equity release provider is involved, documentation matters. Before-and-after photographs and a short written summary of the work and the condition of the timbers may be included in the price or charged as an extra. Confirm what's needed with your lender or solicitor first — our spray foam mortgage problems page explains what to ask.
Once the foam has gone, most homeowners want the loft insulated again, normally at ceiling level with the roof space ventilated above. We can quote for this, or point you to an insulation installer. Either way, build it into your budget.
Why a Quote Is Usually Needed Before Giving a Firm Price
Guide prices only go so far. Which foam, how deep, how stuck, the roof’s health and the way in are tough to gauge from words, and even sharp photos leave gaps. So we fix the figure once we’ve seen it, in person or in good pictures. A price based on what's actually in your loft is worth far more than a cheap figure that grows once work starts.
Comparing Quotes
Put quotes side by side and check each one answers the same questions:
- Does the figure cover taking the foam away and disposing of it?
- What protection is planned for carpets, stairs and the hatch surround?
- Will you get dated photos and a short written report, and is that extra?
- How are repairs handled if a rafter, slate or section of felt needs attention?
- Is new insulation included, quoted separately, or left to someone else?
- How many days on site, and how soon can they start?
A cheaper quote that skips the paperwork your lender wants can end up costing more. Ready for a figure? Request a quote, or read about loft spray foam removal.