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:
-
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.
-
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.
-
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.
-
Brick Removal: We carefully remove a few bricks at the bottom of the wall to create an extraction point.
-
Compressed Air: We drill small holes in the mortar joints higher up the wall and use compressed air to loosen the insulation material.
-
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.
-
Borescope Inspection: We use a specialist camera (borescope) to look inside the wall and ensure every last bit of insulation has been removed.
-
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.
steve
⭐⭐⭐⭐⭐ I recently had Prestige Roofs carry out a chimney repointing on my house and I couldn’t be happier with the service. The lads were very friendly, professional and polite from start to finish. They explained what needed doing, got the job done efficiently, and left everything tidy afterwards. The workmanship looks excellent and the chimney is now solid and secure again. It’s great to find a team that takes pride in their work and treats customers with respect. I’d definitely recommend Prestige Roofs to anyone needing roofing work done. Brilliant job!
5 days ago
Mary King
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.
6 days ago
Gavin Flynn
My father-in-law was very impressed with the speed, cleanliness and efficiency of the replacement of the roofing felt at his property. He was kept fully informed at every stage of the process. A minor adjustment was required after a particularly hard deluge of rain, but this has resolved the problem.
2 weeks ago
Aimee Moliterno
I initially received a flyer threw the door and then around a week later I saw two off there vans doing roofing works on the property on my street , I contacted them for a moss removal they gave me a fixed price which was fair . The office got in contact with a date . Today they finished and safe to say they don’t just walk the walk they talk the talk . Thanks to the team in the office and also the team on the roofs .
1 month ago
Barry Oake
A request for a roof MOT led to the need for renewal of everything under the tiles. Very prompt arrangements went forward and within a week the team was on site. Very efficient and friendly bunch, leaving no mess behind and on time. Helpful in the office also a bonus. A good experience.
1 month ago
Sammi Wicks
What a wonderful company, extremely efficient and kept my mother informed all the way through, as she had to have her whole roof replaced. The work was carried out quickly with 12 men on site to get the job done. They were very thorough, taking pictures as they worked, to show her everything. The men were very polite and they cleaned up very well after the job was done. Thank you Luke for all your help. Thoroughly recommend this company!
1 month ago
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