SERVICES
Cavity Wall Insulation Removal
Damp patches on your internal walls? It could be your old cavity wall insulation failing. Over time, insulation can slump or become wet, bridging the gap for moisture to travel inside. We use specialist equipment to extract the old, wet material, clearing the cavity and allowing your walls to dry out properly.
Why choose Prestige Roof for cavity wall insulation removal?
Prestige Roof carries out cavity wall insulation removal across Norfolk, Suffolk, Essex and the wider East of England, using experienced teams, quality materials and a focus on tidy, reliable workmanship.
Free surveys
Arrange a no obligation inspection and quote.
Fully insured
Work covered by insurance and clear paperwork.
Local team
Based in Dersingham, covering the East of England.
Solving Damp and Cold Spots in Your Home
Cavity wall insulation was installed in millions of homes with the promise of lower heating bills and warmer rooms. For many, it works well. However, if the insulation was installed incorrectly, or if the material has become wet over time, it can cause serious problems for your property.
If you are suffering from unexplained damp patches on internal walls, peeling wallpaper, or "cold spots" that never seem to warm up, your cavity wall insulation might be to blame. At Prestige Group, we provide a specialist removal service that extracts the wet, failed material and allows your home to breathe again.
Why Does Insulation Fail?
Cavity wall insulation works by filling the air gap between your brick walls to trap heat. But if that gap is bridged by wet material, it acts like a sponge. Instead of keeping the cold out, it draws rainwater from the outside brickwork right through to your plasterboard.
Common reasons for failure include:
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Driving Rain: In exposed areas of Norfolk, Suffolk, Essex and the East of England, heavy rain can saturate the brickwork. If the insulation gets wet, it slumps and creates a bridge for damp.
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Rubble in the Cavity: If the cavity wasn't cleared of builders' rubble before the insulation was blown in, it creates voids and cold spots where condensation forms.
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Wrong Material: Some older types of urea-formaldehyde foam break down over time, turning to dust and settling at the bottom of the wall.
The Removal Process
We use a safe and effective method to remove the old insulation without damaging the structure of your house. We do not need to knock down walls or make a mess inside your home.
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Brick Removal: We carefully remove a few bricks at the bottom of the wall to create an extraction point.
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Compressed Air: We drill small holes in the mortar joints higher up the wall and use compressed air to loosen the insulation material.
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Extraction: A powerful industrial vacuum is connected to the bottom extraction point. This sucks out the old fibre, foam, or beads, leaving the cavity completely clear.
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Borescope Inspection: We use a specialist camera (borescope) to look inside the wall and ensure every last bit of insulation has been removed.
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Making Good: We replace the bricks and re-point the mortar holes with a colour-matched mix, so you can hardly tell we were there.
Let Your Walls Dry Out
Once the wet material is removed, the air can circulate freely in the cavity again. This allows your internal walls to dry out naturally over time. You should notice the damp smell disappearing and the walls feeling warmer to the touch.
Mortgage & Selling Issues
Just like spray foam in the loft, failed cavity wall insulation can sometimes be flagged by surveyors when you try to sell your home. If a surveyor spots damp caused by insulation, they may recommend retention on the mortgage until it is fixed.
We can provide the necessary documentation and photos to prove the cavity has been cleared, helping your sale proceed smoothly.
Get a Professional Assessment
If you suspect your insulation is causing damp, do not ignore it. It will likely get worse over time.
Give the team in the pink vans a call. We can carry out a borescope inspection to see exactly what is happening inside your walls. We will give you an honest assessment and a fixed price for the removal if it is needed.
Get your free quote
Tell us about your property and the work you need.
It only takes a couple of minutes to complete.
What our customers say
We take pride in every project and it shows in the feedback we receive. Here are some of our latest reviews from Google.
Bryann Ward
50+years moss accumulation on the roof was causing us concern. Difficult to find local firm that did not use pressure washing to clean so when a R.Mail leaflet drop came through the door, decided to contact Prestige. Their response was quick and a quote was soon provided to clear the moss by hand which we accepted. an early date was agreed. Unfortunately this uncovered more serious damage to the underlying structure (as shown by photos) and a revised quote provided to completely re-tile. We agreed a new price and within a week the work started. The team of 4 worked hard completing the re-roof in 2 days, keeping us informed of progress, and leaving the area in a clean and tidy state. As well as a guarantee we were given a report on what was done, supported by photos. Overall a very professional approach.
1 week ago
Georgia Bradley
I recently had work carried out by Prestige Roof, and I cannot recommend them highly enough. As a young homeowner, I was understandably cautious about who I chose, but from the very first interaction, the team put me completely at ease. Luke, the director, took the time to come out personally and explain everything to me in a clear and thorough manner. He was extremely professional, patient, and well-mannered throughout, ensuring I fully understood the process and even encouraging me to take time to review the quotation with my family before making any decisions. This level of honesty and transparency was very reassuring. The work itself was completed to an exceptional standard. The team on site were punctual, respectful, and genuinely lovely to deal with. It was clear they took pride in their work, and the finished result truly reflects that. The completed project has transformed the appearance of my property, and I am extremely pleased with the outcome. The aftercare provided was equally impressive. Any questions I had were handled promptly and professionally, and the office staff were always friendly, helpful, and efficient in their communication. Overall, my experience with Prestige Roof has been outstanding from start to finish. Their professionalism, quality of workmanship, and excellent customer service make them a company I would confidently recommend to anyone.
3 weeks ago
Peter Lowe
We discovered a small leak in the kitchen ceiling of our home in Snettisham. Prestige Roof came out and fixed the problem quickly. A small job but one they were happy to do. Great service from a local company.
1 month ago
Harvey Cross
I’ve have used Prestige multiple times on different projects / properties. I can’t say I’ve ever had a problem with anything they have done for me, they have always been professional from the roof survey through till they cleared site.
1 month ago
Amy Bright
We received a flyer through our door at the start of the month and decided to get in touch. Although it was only a small job, it’s definitely worth leaving a review ! Prestige responded quickly, came out the next day, and provided a quote on the same day . Work started the following week and lasted three days. They carried out a full roof clean, as well as cleaning the fascia and gutters. As an added bonus, they also jet-washed our driveway at no extra cost, which was a really nice touch. A big thank you to the team at Prestige, and especially to Luke for the excellent service. Highly recommended.
1 month ago
John Collins
I called prestige roof after receiving one of there flyers threw my door , I wanted a price for a roof replacement . They gave me that , the office stuff was easy do deal with and they worked at a good speed and so did the Prestige team what done my roof . Finding a good roofing firm who do what they say they are going to do is hard to come by but Prestige definitely meet there expectations. Thanks to the prestige team and I hope you like your cakes what Marry baked aswell 10 star job
1 month ago
Other areas we cover for cavity wall insulation removal
Choose your nearest area to see a more localised page and example projects for cavity wall insulation removal near you.
Ready to book your free survey?
Whether you need a new roof or insulation removal, the Prestige Roof team can visit, assess the property and provide a clear, no obligation quote.
- Free, no obligation surveys
- Honest advice on the best options for your home
- Written quotes with no hidden extras