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.
- Free site visit and written quote
- Fully insured, third-generation family team
- No obligation, no sales pressure
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 Roof, 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 Dersingham, Norfolk and the surrounding villages, 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.
Popular areas for cavity wall insulation removal
We carry out cavity wall insulation removal right across Norfolk, Suffolk, Essex and the East of England, working from our base in Dersingham. Popular areas include Cavity Wall Insulation Removal in King's Lynn.
Why choose Prestige Roof for cavity wall insulation removal?
Prestige Roof carries out cavity wall insulation removal across Dersingham, Norfolk and the surrounding villages, working from our base in Dersingham right across Norfolk, Suffolk, Essex and the East of England. We use 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 Norfolk and the East of England.
Free, no obligation quote
Get your free quote in Norfolk
Tell us what is going on and Molly or Julie will call you back to arrange a convenient visit. It only takes about a minute, and there is never any pressure.
- Free site visit and written quote
- Fully insured, third-generation family team
- No obligation, no sales pressure
Real customers
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.
Louise Darlington
We needed a tile replacing, the lady answered the phone so professionally and politely and was friendly throughout our conversation. She booked the appointment and told me what would happen, the tile was replaced and several others by Luke who was very friendly and professional, very pleased with the service and we would thoroughly recommend Prestige Roofs.
2 weeks ago
David Jeanes
After many years of suffering roof drainage/water leaks from a sunlounge joined onto a house ( & numerous contractors) we appear to have had it solved by Prestige Roof Ltd. They came up with proposals for an innovative roof/drainage system & talked us through all the stages with the help of AI generated images. The result? An excellent job completed with 2 Velux roof lights by a team of roofers,plasterers & decorator ,people who knew their jobs & even cleared up afterwards! And all with a 10 year guarantee. On completion we were presented with photos taken prior to the task & then photos of the completed project. Thank you again Prestige Roof Ltd. We would certainly recommend you to people seeking a company to solve any roof problems.
4 weeks ago
Jack High
Prestige Roofing did an outstanding job with the spray foam removal. The team was professional, punctual, and kept me informed throughout the entire process. They worked efficiently, left everything clean and tidy, and the quality of their work was excellent. It’s clear they take pride in what they do and genuinely care about their customers. I wouldn’t hesitate to recommend Prestige Roofing to anyone needing spray foam removal. Excellent service from start to finish!
1 month ago
Gary Jay
Fast and efficient service, this must have been a one off? from quote to completion, including scaffolding 3 days. Inspection and quote on Wednesday, scaffold arrived Thursday and job started and finished on Friday. This was for new roof membrane, new battens cleaned and replaced tiles, as well as a complete new flat roof rubber covering and lagged loft as well for good measure. Left early Friday evening and apart from the skip of rubbish I would not have know they had been, all clean and tidy as promised. A big thank you to James and his crew for an excellent job.
1 month ago
Richard Mallard
I recently suffered from a leak in my bedroom and was really worried about the condition of my roof. I contacted Prestige Roof Ltd to carry out a full roof MOT on my property, and I’m so glad I did. From the moment I got in touch with them, the whole experience was professional and reassuring. The team came out promptly and carried out a very thorough inspection of the roof. They took the time to clearly explain what they were looking at and showed me the areas that had deteriorated. They also explained what a damaged or failing roof looks like, which really helped me understand the problem rather than just being told I needed repairs. After the inspection, they provided me with a fully detailed report along with a clear quotation, which was very helpful and transparent. The office staff were absolutely lovely to deal with—friendly, helpful, and quick to respond to any questions I had. The workers who attended the property were fantastic as well. They were polite, respectful, and worked very professionally throughout the visit. Luke, the owner of Prestige Roof Ltd, clearly knows his trade. He took the time to talk everything through with me and made sure I understood what needed to be done. He was very kind, honest, and genuinely made me feel like he cared about helping me solve the problem rather than just doing a job. Overall, I had a brilliant experience with Prestige Roof Ltd. The service was professional, honest, and very thorough from start to finish. I would highly recommend them to anyone who needs roofing advice, an inspection, or repairs. It’s not easy finding trustworthy tradespeople these days, but this company really stands out.
1 month ago
Patricia Hall
Enquiries dealt with quickly, efficiently and business like. Recommended.
2 months 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.
Norfolk
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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