Full cavity survey
We inspect the cavity with a boroscope and thermal imaging camera to map the foam and check for damp, rot or blocked vents. You get a written survey summary before we start, so you know exactly what we found and what we recommend.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
5+ Years Trusted in Cheltenham
What our cavity wall spray foam removal includes
Every cavity foam removal job is different, but our standard service covers the survey, the extraction, the cavity check and the report. We tell you upfront what is included and what would be an extra, so there are no surprises when the invoice arrives.
Foam extraction
We remove all injected foam from the cavity using thermal tools, dry ice blasting or sand blasting as needed. We work in sections to keep dust contained and we use an industrial vacuum and air scrubber throughout. Most cavities are cleared within a day.
Cavity clean and check
After extraction we clear out any foam debris, check the cavity with a boroscope and test exposed timber with a moisture meter. We clear blocked air bricks and weep holes so the cavity can drain and ventilate properly again.
Timber treatment
If we find rot or damp in timbers near the cavity, we treat it as part of the job. That includes applying treatment to affected wall plates, lintels or joist ends. If the damage is severe, we tell you what a carpenter would need to do before we close up.
Photographic report
You get a written removal report with before-and-after photographs, which is what mortgage lenders and building control ask for. We can email it to your lender or surveyor directly if that helps speed things up. Most reports are sent within 48 hours of finishing.
Waste removal and clean-up
We take away all foam and debris and leave the site clean. Floors are vacuumed, sheets are removed and your property is left as we found it, minus the foam. You do not need to arrange a skip or a separate waste collection.
Cavity wall spray foam removal in Cheltenham explained
Cavity wall spray foam removal in Cheltenham means pulling out the injected polyurethane foam that sits between your inner and outer walls, then checking the cavity for damage. Foam was sold as an easy fix in the 2000s and 2010s, but it traps moisture against the brickwork, blocks ventilation and can rot timber lintels and wall plates. We use a boroscope and thermal imaging camera to map exactly where the foam sits before we touch anything, so we know what we are dealing with.
Most of our Cheltenham work comes from three situations: a mortgage lender refusing to lend until the foam is gone, a surveyor flagging condensation or damp patches on internal walls, or a homeowner who has noticed the cavity is no longer breathing. If you are searching for cavity wall insulation removal near me Cheltenham Gloucestershire, we cover the whole town and the surrounding villages. We have been doing this since 2021 and we know exactly what local surveyors want to see.
How our cavity foam removal process works
We keep the process straightforward. You get a clear survey, a fixed price and a clean site. Most cavity wall foam removals in Cheltenham take one to three days depending on the size of the property and how far the foam has spread.
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Schedule
Call or book online — a real human picks up and confirms a 2-hour arrival window.
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Diagnose
Licensed tech inspects on-site, then walks you through the cause and your options.
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Fix
The job is completed to code and done right the first time — no shortcuts, no surprises.
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Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools and methods we use for foam removal
Tools & Equipment
Boroscope
A boroscope lets us see inside the cavity without knocking holes in your wall. We use it to map the foam, check for damp and inspect timber before and after removal.
Thermal imaging camera
A thermal imaging camera shows us where foam is trapping moisture and where the cavity is not ventilating. It helps us target the removal and confirm the cavity is dry afterwards.
Moisture meter
We test exposed timbers and plaster with a moisture meter to check for hidden damp. It tells us whether rot treatment is needed and whether the cavity has dried out properly.
Dry ice blasting machine
A dry ice blasting machine freezes and cracks the foam so it can be pulled out without damaging the surface underneath. It is clean, fast and ideal for delicate brickwork.
Sand blasting equipment
We use sand blasting equipment on stubborn foam that has bonded hard to the brickwork. It is powerful, so we only use it where necessary and always with full dust containment.
Industrial vacuum and air scrubber
These keep the dust and foam particles contained while we work. We run them throughout the job so your home stays as clean as possible and no debris escapes into other rooms.
Scaffolding and respirators
For higher walls and tight access we use scaffolding erected to PASMA standards. Our technicians wear respirators to protect themselves from foam dust and any spores released during removal.
Methods & Standards
Thermal removal
We use heated tools to soften and slice through the foam, making it easier to pull out without damaging the wall. This is our main method for closed cell foam, especially in narrow cavities or where access is tight.
Dry ice blasting
Dry ice blasting freezes the foam so it becomes brittle and cracks away from the brickwork. It is a clean method that leaves no residue and is ideal for older or more delicate walls where sand blasting would be too abrasive.
Sand blasting
When foam is particularly stubborn, we use sand blasting equipment to break it down. We contain the area fully with sheeting and air scrubbers, and we only use this method where the brickwork can take it.
Cavity inspection and reporting
After removal we inspect the cavity with a boroscope and thermal camera, check timbers with a moisture meter and photograph every stage. The report we produce meets the standards mortgage lenders and building control expect.
When to book cavity wall spray foam removal
01
You are selling your Cheltenham home and the buyer's surveyor has flagged injected cavity foam.
What we do: We survey the property, remove the foam and provide the photographic report your buyer's lender needs. We can usually get the survey done within 48 hours and the removal completed within a week, depending on the size of the house.
→ Your sale goes through without a price reduction for foam removal, and your buyer's mortgage offer stands.
02
You have noticed damp patches or a musty smell on internal walls and suspect the cavity foam is to blame.
What we do: We use a boroscope and thermal imaging camera to confirm whether the foam is trapping moisture. If it is, we remove it, clear the vents and treat any damp or rot we find. We also check for hidden leaks while the cavity is open.
→ The damp dries out, the smell goes and your walls stay dry through the winter.
03
You are remortgaging and your lender has asked for evidence that the cavity foam has been removed.
What we do: We remove the foam and send a full removal report with before-and-after photographs directly to your lender. The report includes the survey findings, the extraction method and confirmation that the cavity is clean and ventilated.
→ Your lender releases the funds and your remortgage completes on schedule.
04
You have bought a property at auction and discovered it has cavity foam that was not mentioned in the legal pack.
What we do: We carry out an urgent survey and removal, often within a few days of your call. We check for rot, damp and blocked vents at the same time, so you know exactly what you are dealing with before you start any renovation work.
→ You get a clear picture of the property's condition and a fixed price for the removal, so you can budget for the rest of the work.
How cavity foam removal works in Cheltenham
Cheltenham has a mix of building stock that affects how we approach cavity foam removal. The town has thousands of Victorian and Edwardian terraces, especially around Tivoli, Montpellier and The Suffolks, where cavities are narrow and brickwork is soft. We use thermal tools and dry ice blasting on these properties rather than sand blasting, because the bricks cannot take the abrasion. In the post-war estates around Hatherley, Benhall and Whaddon, cavities are wider and the foam is often closed cell, which takes longer to remove. The local climate matters too. Cheltenham sits in a sheltered valley, so walls dry out slowly after rain, and foam that traps moisture causes problems faster here than in more exposed areas. If you are looking for cavity wall insulation removal near me Cheltenham Gloucestershire, we know exactly what your property needs. We also work with local surveyors and lenders every week, so we know what they want to see in a removal report.
Neighborhoods We Serve
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Tivoli
Victorian terraces with narrow cavities and soft brickwork. We use thermal tools and dry ice blasting here to avoid damaging the walls, and we check the timber lintels carefully because they are prone to rot.
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Charlton Kings
A mix of older cottages and 1960s semis. Cavity foam is common in both, and we often find blocked air bricks that need clearing before the cavity can ventilate properly again.
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Hatherley
Post-war housing with wider cavities and a lot of closed cell foam. Removal takes longer here, but the wider cavity makes it easier to inspect for damp and rot once the foam is out.
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Pittville
Large Victorian and Regency properties with deep cavities and original features. We take extra care with scaffolding and protection, and we check for hidden leaks in the larger wall voids.
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Bishops Cleeve
Modern estates on the edge of Cheltenham where foam was injected more recently. The foam is often still intact but already trapping moisture, so early removal prevents bigger problems later.
Local Conditions We Plan For
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Sheltered valley location with slow drying walls
Walls in Cheltenham dry out more slowly than in exposed areas, so foam that traps moisture causes damp and rot faster. We check for hidden damp on every survey and treat it before it spreads.
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Older brickwork that cannot take abrasive blasting
Victorian and Edwardian bricks are softer than modern ones, so we use thermal tools and dry ice blasting instead of sand blasting on these properties. It takes longer but protects the wall.
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High proportion of injected foam from the 2000s and 2010s
Many Cheltenham homes had foam injected during government-backed insulation schemes. That foam is now failing and causing mortgage and damp problems, so we see a steady stream of removal work across the town.
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Local lenders and surveyors who know foam issues
Cheltenham surveyors are experienced at spotting cavity foam and lenders are strict about it. Our reports are written to meet their standards, which helps sales and remortgages move faster.
Mortgage refused in Tivoli
Cavity foam problems we solve in Cheltenham
Injected cavity foam causes a handful of predictable problems, and we see them all over Cheltenham. If you recognise any of these, the foam is probably the cause and it is worth getting a survey before the damage gets worse.
Problem
Mortgage lender refuses to lend
Your sale or remortgage stalls, you lose your buyer and you may have to drop your asking price. The longer it drags on, the more it costs you in legal fees and stress.
Our Fix
We remove the foam and provide the photographic removal report your lender needs. We can usually get the report to them within 48 hours of finishing the job, so your sale can get back on track quickly.
Problem
Damp patches and condensation inside
Foam stops the cavity from ventilating, so moisture sits against the inner wall. You get damp patches, blown plaster, musty smells and eventually mould on skirting boards and in corners.
Our Fix
We remove the foam, clear the blocked air bricks and check for hidden leaks. Once the cavity can breathe again, the damp dries out and the condensation stops. We treat any mould or rot we find before we finish.
Problem
Timber rot near the cavity
Wall plates, lintels and joist ends sit close to the cavity. When foam holds water against them, rot sets in quietly. By the time you notice it, you may be looking at structural repairs costing thousands.
Our Fix
We check every exposed timber with a moisture meter during removal and treat any rot we find. If the damage is severe we tell you straight away so you can get a carpenter in before the problem spreads further.
Problem
Blocked roof ventilation and insulation failure
Foam in the cavity can block ventilation paths that connect to the roof space. That leads to condensation in the loft, wet insulation boards and, over time, rot in the roof timbers.
Our Fix
We clear the cavity and check the roof space for blocked vents. If we find wet insulation boards or signs of rot, we can remove those too and restore airflow so the roof can dry out properly.
Why Cheltenham homeowners remove cavity foam
Cavity foam removal is not just about satisfying a lender. It protects the fabric of your house, restores the cavity's ability to breathe and stops small problems becoming expensive structural ones.
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Unblocks your mortgage
Most high street lenders will not release funds on a property with injected cavity foam. We provide a full removal report and photographic evidence, which is what valuers ask for. In many cases we can get the foam out and the paperwork back to your lender within a week, so your sale or remortgage keeps moving.
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Stops trapped moisture
Foam stops the cavity from ventilating, so moisture sits against the inner leaf. Over time that shows up as damp patches, blown plaster and musty smells. Removing the foam lets air move again and gives any hidden leaks a chance to dry out before they cause timber rot.
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Protects timber and lintels
Timber wall plates, lintels and joist ends sit close to the cavity. When foam holds water against them, rot sets in quietly. We check every exposed timber with a moisture meter during removal. Catching it early saves thousands compared with replacing a lintel or floor joist later.
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Restores ventilation
A cavity is designed to drain and dry. Foam blocks the air bricks and weep holes that make that happen. Once we have removed the foam and cleared the vents, your walls can manage rainwater and condensation the way they were built to. That alone prevents most of the damp problems we get called out to.
Certifications and reviews
Licensed & Certified
- CHAS Accreditation — issued by CHAS
- Constructionline Registration — issued by Constructionline
- SafeContractor Approval — issued by SafeContractor
- PASMA Certification — issued by Prefabricated Access Suppliers' and Manufacturers' Association
- IPAF Certification — issued by International Powered Access Federation
Verified Reviews
Google ★★★★★4.9
Removed cavity foam from our Tivoli terrace so our buyer's mortgage could go through. Survey within two days, foam out within a week, report sent straight to the lender. Professional, tidy and knew exactly what they were doing.
Google ★★★★★5.0
We had damp patches for two years and three builders missed the cause. Spray Foam Heritage Homes found the foam was trapping moisture, removed it and cleared the vents. No damp since. Highly recommend them for cavity foam removal in Cheltenham.
Checkatrade ★★★★★4.8
Used them for a rental property in Hatherley with cavity foam and condensation. They removed the foam, checked the timbers and gave me a full report. Tenant is happy, mould has gone and the remortgage went through without a hitch.
Google ★★★★★5.0
Booked an urgent survey after our lender refused to lend. They came out the next day, quoted a fixed price and started work the following Monday. Foam removed, report issued and our sale completed. Cannot fault them.
Five years of cavity foam removal in Cheltenham
Spray Foam Heritage Homes has been removing cavity wall spray foam since 2021. In that time we have worked on hundreds of properties across Cheltenham and Gloucestershire, from Victorian terraces in Tivoli to 1970s estates in Hatherley. Our technicians hold PASMA and IPAF qualifications for safe access, and we work to CHAS, Constructionline and SafeContractor standards. We know the local building stock, the surveyors who inspect it and the lenders who want the foam gone. That local knowledge is why most of our work comes from repeat customers and referrals.
- PASMA and IPAF certified for safe scaffolding and access work on Cheltenham properties.
- CHAS, Constructionline and SafeContractor accredited, so we meet the compliance standards lenders expect.
- We use boroscopes, thermal imaging cameras and moisture meters on every survey, not just a visual check.
- Experienced with Icynene, Lapolla, Demilec, BASF and Huntsman foam types found in local homes.
- We provide full photographic removal reports that satisfy mortgage lenders and building control.
Frequently Asked Questions
Real answers to the questions we hear most often from local homeowners and property managers.
How much does cavity wall spray foam removal cost in Cheltenham?
Most cavity wall spray foam removal jobs in Cheltenham cost between £1,200 and £3,500 in 2026. The price depends on the size of the property, how much foam was injected and whether scaffolding is needed. A standard three-bed semi usually falls at the lower end, while larger detached houses or properties with rot damage cost more. We give you a fixed written quote after a free survey.
Can you remove spray foam from cavity walls in Cheltenham Gloucestershire?
Yes. We remove open cell and closed cell spray foam from cavity walls across Cheltenham and the whole of Gloucestershire. We use thermal removal tools, dry ice blasting and, where needed, sand blasting equipment to clear the cavity without damaging the brickwork. After removal we check the cavity with a boroscope and treat any damp or rot we find before we finish.
What is the best cavity wall insulation removal near me in Cheltenham?
The best removal is one that clears the full cavity, checks for damage and gives you a report your lender will accept. Look for a contractor who uses boroscopes and thermal imaging, not just a visual inspection. We have been removing cavity foam in Cheltenham since 2021, we are CHAS and SafeContractor accredited, and we provide a full photographic report with every job.
Does cavity wall spray foam removal need building control in Cheltenham?
In most cases you do not need building control approval to remove spray foam from a cavity wall, because you are taking something out rather than adding it. However, if the removal is part of a larger renovation or you are changing the insulation specification, building control may need to be involved. We can advise you during the survey and provide the documentation your local authority asks for.
Related Services
Spray Foam Removal near me
If you are searching for spray foam removal near me, we cover Cheltenham and the surrounding villages. We remove foam from cavity walls, lofts and roofs, and we can usually survey your property within 48 hours of your call.
View Spray Foam Removal near mesame day Spray Foam Removal
We offer same day spray foam removal for urgent cases in Cheltenham, such as a collapsed sale or a lender deadline. Call before 10am and we will do our best to get a technician to you that day for a survey or emergency extraction.
View same day Spray Foam Removal24/7 Spray Foam Removal
Our 24/7 spray foam removal line is for emergencies like water pouring through a foam-blocked cavity or a sudden leak behind injected foam. Call 01242375143 any time and we will arrange an emergency response across Cheltenham and Gloucestershire.
View 24/7 Spray Foam RemovalResidential Spray Foam Removal
Most of our cavity wall spray foam removal work is residential. We remove foam from houses, bungalows and flats across Cheltenham, taking care to protect your home and leave it clean. We provide a full report for your lender or surveyor.
View Residential Spray Foam RemovalCommercial Spray Foam Removal
We also handle commercial spray foam removal for offices, shops and warehouses in Cheltenham. Cavity foam in commercial buildings can cause the same damp and mortgage issues as in homes, and we work around your business hours to keep disruption low.
View Commercial Spray Foam Removalloft spray foam removal
Loft spray foam removal is often needed alongside cavity removal, especially in older Cheltenham properties where both have been injected. We remove loft foam, check the roof timbers for rot and restore ventilation to the roof space.
View loft spray foam removalContact our Cheltenham team
Call us on 01242375143 or email [email protected] and we will arrange a free survey at your Cheltenham property. Our phone line is answered 24/7, and we aim to book surveys within 48 hours across Gloucestershire. If you have photos of the foam, send them over and we can often give you an initial view before we visit.
Spray Foam Heritage Homes
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Phone
01242375143 -
Address
15-21 Clarence Street, Cheltenham, GL50 3JL, UK, Cheltenham, Gloucestershire
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Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available