Cavity Wall Extraction Specialists
If your cavity wall insulation has failed, it can cause damp, mould, cold spots, and rising energy bills. We specialise in the safe removal of defective cavity wall insulation, restoring your property’s health and thermal performance.
About us
Why Cavity Wall Insulation Fails
While insulation is designed to improve energy efficiency, poor installation, low-quality materials, or prolonged exposure to moisture can lead to serious problems, including:
Penetrating damp
Mould growth
Condensation issues
Structural damage
What is cavity wall extraction?
Cavity wall extraction is the process of removing failed or defective insulation from within your property’s cavity walls. Using specialist industrial vacuum equipment, we safely extract insulation materials that are causing damp, mould, or cold spots.
Why would insulation need to be removed?
Cavity wall insulation can fail due to poor installation, unsuitable materials, age, or prolonged exposure to moisture. When it becomes saturated, it can trap water inside your walls, leading to damp, internal damage, and reduced energy efficiency.
How do I know if my insulation has failed?
Common signs include: Damp patches on internal walls Mould growth or musty smells Peeling paint or wallpaper Cold areas on walls Increased heating bills If you're unsure, we can carry out a professional assessment.
Is the extraction process disruptive?
No. The process is controlled and efficient. Small access holes are drilled into the mortar joints (not the bricks), insulation is removed using high-powered vacuum systems, and all holes are professionally reinstated to match your existing brickwork.
How long does cavity wall extraction take?
Most residential properties can be completed within one to two days, depending on size and the amount of insulation present.
Can I stay in my home while the work is being done?
Yes! We can work around you.
Can the walls be re-insulated afterwards?
In some cases, yes — but only if the property is suitable and underlying moisture issues have been resolved. We provide honest advice based on your specific property.
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Get in touch
If you’re experiencing damp, mould, or suspect your cavity wall insulation has failed, we’re here to help.
At XTRACT-CAV, we provide honest advice, professional surveys, and reliable cavity wall extraction services with minimal disruption to your home.
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