Insulation Maintenance

Cavity Wall Insulation Extraction & Removal

Ineffective cavity wall insulation needs to be removed and replaced. Contact us for our cavity wall extraction service across England.

Key Information

What is a Cavity Wall Extraction Service?

Cavity wall extraction involves removing insulation material from the cavities within your external walls. This process is essential when the existing insulation has degraded, become damp, or is no longer effective.

Successful cavity wall extraction demands expert knowledge and specialised equipment.

Professionals trained in this service can effectively identify and address insulation problems, ensuring the integrity and efficiency of your home’s insulation system. Whether for maintenance, repairs, or upgrading to a more efficient insulation solution, cavity wall extraction is a crucial service for maintaining a comfortable and energy-efficient home.


Why may you need this?

Remove your Cavity Wall Insulation

Prevent Damp & Mould

Old or poorly installed insulation can trap moisture within your walls, leading to dampness and mould growth. Removing the compromised insulation helps maintain a dry and healthy living environment, preventing structural damage and health issues.

Improve Energy Efficiency

Over time, insulation can settle or degrade, reducing its effectiveness. Extracting and replacing old insulation enhances your home's thermal efficiency, resulting in lower energy bills and a more comfortable indoor climate.

Avoid Structural Damage

Retained moisture within cavity walls can weaken the structural integrity of your home. By removing ineffective insulation, you prevent potential damage to the walls and foundation, ensuring the longevity and stability of your property.

Upgrade Insulation Quality

Advances in insulation technology mean newer materials offer better performance. Investing in cavity wall extraction allows you to upgrade to modern, more efficient insulation, improving your home's overall energy performance and value.

The Process

How to Remove Cavity Wall Insulation?

Complete the entire project in approximately two days for an average 3-bedroom detached property.

Step 1

Insert a compressed air line into the cavity wall.

Step 2

Attach a flexible suction vacuum by removing a single brick below the air line to collect the fallen insulation.

Step 3

Use the air line to push compressed air into the wall, breaking up the insulation and directing it towards the suction nozzle.

Step 4

Safely extract the damaged insulation material from the cavity.

Step 5

Remove the vacuum and air line & restore any holes and gaps in the wall.


Cavity Wall Insulation
Cavity Wall Insulation
Read More
Good work all round, all questions answered promptly and thoroughly, folks knew their stuff and were careful to check the best possible result given existing bits of broken polystyrene in the back wall. Larger than average 3 bed semi done in about 3.5 hours once they were set up. More aesthetic than practical, but I was particularly pleased with how well they matched the morter to the existing one for filling the holes at the end of the job. 25 year warantee was a particularly nice touch. Came sooner than booked due to a cancellation which was a bonus. Really noticing the difference already.
Cavity Wall Insulation
Cavity Wall Insulation
Read More
Absolute perfection. Courteous, cleaned up after. Explained procedure and very efficient all round
Cavity Wall Insulation
Cavity Wall Insulation
Read More
The 2 engineers did an excellent job of keeping the drilling holes to a minimum and cleaned up very well afterwards. In addition to the cavity wall insulation, they also had to fit a new vent due to our wood burner in the living room. They checked with us throughout the project that we were happy with what they were doing and asked for feedback at the end. Very professional and polite guys. We will hopefully learn over the hot summer and cold winter how effective the work has been. Well done team!
Cavity Wall Insulation
Cavity Wall Insulation
Read More
Terry Dunford did the surveying for our property he was very knowledgeable and gave very good advice which we check and was correct in everything he said. The men who came do the cavity wall insulation were also very good, they respected us and our home,they explained what they were going to do and warned us about the noise. They cleared up after they had completed the work and asked us to check that we were happy with the way they had left our property which we were. We would highly recommend this company to anyone thinking of having any cavity wall insulation done .
Cavity Wall Extraction

Get Cavity Wall Insulation Removal Near You

Homeowners in London, Essex, and Manchester can easily access our professional cavity wall insulation extraction services. Our team operates extensively across these regions, ensuring prompt and efficient service no matter your location. By contacting us, you can schedule an inspection and receive a tailored solution to improve your home’s insulation and overall energy efficiency. Our experts are equipped with the latest technology and knowledge to ensure the highest standards of workmanship, giving you peace of mind and a more comfortable living environment.

Expert Installers



Contact Eco Systems today at 0203 411 4885 for expert guidance in selecting the ideal external wall insulation solution for your needs.

Benefit from stress-free installation and exceptional aftercare services, ensuring top-quality results and optimal energy efficiency.

Fill out our contact form to embark on your energy-saving journey with confidence.

Cavity Wall Removal

Frequently Asked Questions

The cost of cavity wall insulation removal varies depending on the size and complexity of the job. On average, homeowners can expect to pay between £1,500 and £3,000, there may also be funding available.

Cavity wall insulation is removed by inserting a compressed air line into the cavity wall to dislodge the insulation and then using a specialised vacuum to extract the material safely.

While it is technically possible to remove cavity wall insulation yourself, it is highly recommended to hire professionals due to the specialised equipment and expertise required for safe and effective removal.

A cavity wall should ideally be insulated with EPS (Expanded Polystyrene) beads. EPS beads provide excellent thermal performance, are resistant to moisture, and offer long-term durability. However, there are other insulation materials that can be used for cavity wall insulation.

Yes, there may be grants available for cavity wall insulation removal, especially if the existing insulation is causing issues such as dampness. Contact us directly and we can provide all funding and costing information for you.

The entire process typically takes around two days for an average 3-bedroom detached property, though this can vary depending on the specific circumstances.

Removing old or damaged insulation can prevent issues like dampness and mould, improve energy efficiency, and protect the structural integrity of your home.

When performed by professionals, cavity wall extraction is done carefully to minimise any damage. Any necessary holes or gaps created during the process are restored afterwards.

Signs that your insulation may need removal include damp patches on walls, mould growth, increased energy bills, or noticeable drafts.

After removal, the cavities can be refilled with modern, efficient insulation materials such as EPS beads, ensuring improved thermal performance and comfort in your home.

Information HUB

Latest News & Insulation Information