What Is Cavity Wall Insulation?
Many UK homes built from the 1920s onwards have two layers of external brickwork with a gap in between — known as the cavity. Filling this cavity with insulation helps to:
- Reduce heat loss
- Improve indoor comfort
- Lower energy bills
Cavity Wall Extraction (Removal of Old or Failed Insulation)
M13 Energy - Insulation experts
Not all cavity wall insulation is installed correctly — and older materials can fail over time.
Poor or defective insulation can cause serious issues such as:
- Damp patches
- Cold spots
- Mould growth
- Internal condensation
- Reduced energy efficiency
We safely remove old insulation using industry-grade equipment that vacuums the material out of the cavity without damaging the wall structure.
