Cavity wall insulation removal across England, Scotland and Wales
Failed cavity wall insulation, removed properly
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Four details and we do the rest. No charge, no obligation.
Wet, slumped or crumbling insulation is taken out, the brickwork is made good and you receive a completion certificate when the work is done. If a lender or surveyor has flagged a filled cavity, that certificate is what you show them.
- Free survey
- Completion certificate
- Payment on completion
1,800+
insulation removals completed in 2025
9.74 / 10
on Checkatrade from 141 reviews
4.9 / 5
on Trustatrader from 25 reviews
Remove Sprayfoam Limited's own published figure, and its Checkatrade and Trustatrader scores and review counts as read on 2 September 2026.
Failed insulation
Signs your cavity wall insulation has failed
Four things homeowners notice. Each links to what it means and what a survey checks. If a lender or surveyor has flagged a filled cavity and a mortgage, removal may be the way through.
Damp patches on inside walls
A patch on the inside of an outside wall that darkens after rain and has no other source.
Read about it
Mould and condensation
Black mould in corners, behind furniture and around windows, on walls that are colder than they should be.
Read about it
Cold rooms that will not warm up
Cold bands and patches on outside walls where the fill has slumped, got wet or was missed.
Read about it
Wet or slumped insulation
What the borescope shows when wool, bead or foam has failed inside the cavity.
Read about it
The free survey
Not sure it is the insulation?
If it is not the cause, we say so and there is nothing to pay.
Borescope through a mortar joint
Moisture readings across the wall
A quote in writing
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What we remove and how
Extraction, cavity cleaning, surveys and guarantee claims
How the removal works
The five stages of every job
The survey
We confirm the insulation actually needs to come out and assess the cavity: an outside walk round, moisture readings inside and a borescope through the mortar joints. You get a quote for your wall, not a national average.
The original injection holes are reopened
We find the holes the installer drilled near the top of the wall and open them up again. Compressed air goes in through them to break the old fill up and move it down the cavity.
Bricks out at the base, and the vacuum on
Selected bricks come out at the bottom of the wall to make extraction points. A high powered industrial vacuum then draws the old insulation out of the cavity and into bags.
The cavity is checked before anything goes back
The borescope goes into every cleared elevation to confirm the cavity is clear, and fit to take a refill if you are having one. Fibre on ties, bead in corners and foam on the inner leaf get more air and more suction until it is.
Refilled or left clear, then brickwork made good
Most customers have the cavity refilled with the thermal bead system. If you would rather leave it clear, or the survey says it should stay clear, it stays clear. The bricks are bedded back and pointed to match, and the original drill holes are filled and colour matched to the wall. You receive a completion certificate when the work is done.
What customers say
What homeowners tell us once the wall has dried
Great work! Arrived in time, worked through the day and cleaned up after themselves. Operatives were polite and considerate minimising disruption during a very messy process
My elderly Mother needed to have the sprayfoam removed from her loft for selling. We were very happy with this company from start to finish. The work was carried out quickly and without leaving the house in a mess. It was a very daunting task but our minds were put to rest quickly...
Removal of sprayfoam is not a pleasant task but the team were thorough and professional! They arrived on time and worked through the day with minimal breaks, always behaving politely and in a considerate fashion. The work was completed in one day including a thorough cleaning of the affected areas...
The work carried out to remove the sprayfoam at my mums property was very well done and the guys were extremely courteous, prompt and left everything immaculate. Everything from first seeing Steve, to then dealing with Karen was excellent and would highly recommend to anyone.
I needed urgent help, and this company was the first to respond. From my first contact with them, they went above and beyond. Always answered the phone, kept me updated, and no challenge I threw at them was ever too much. Despite the tight timescale, they made everything happen...
The team that came to my house from removesprayfoam were polite, curtious and very tidy in the work they did
Reviews of Remove Sprayfoam Limited as shown on Checkatrade (9.74 out of 10 from 141 reviews) and Trustatrader (4.9 out of 5 from 25 reviews) on 2 September 2026, quoted as written there; names, job postcodes and dates as the platforms show them.
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