Our Services
Cavity Wall Insulation
Fill the gap in your walls and stop heat escaping — cavity wall insulation is one of the fastest payback energy improvements available.
Overview
What Is Cavity Wall Insulation?
Most UK homes built between 1920 and 1990 have a cavity between their inner and outer walls. Without insulation, this gap allows significant heat loss. Filling it with insulation is a straightforward process that delivers immediate, lasting results.
Our CIGA-approved installers drill small holes at intervals in the external mortar, inject the insulation material under controlled pressure, then re-point the holes to a professional finish. The entire process typically takes a few hours and causes minimal disruption.
We use only approved insulation materials — mineral wool, polystyrene bead, or injected foam — selected based on your cavity type and wall construction. Every installation is backed by a CIGA guarantee.
Key Benefits
- Reduce heat loss through walls by up to 35%
- Lower gas and electricity bills
- Improve your EPC rating
- CIGA-backed guarantee
- Minimal disruption — completed in hours
- No interior work required
How It Works
Our Installation Process
Suitability Check
We assess your wall construction, cavity width, and moisture levels to confirm suitability.
Material Selection
We specify the correct fill material for your cavity type and exposure zone.
Installation
Small holes are drilled, insulation injected, and holes re-pointed to a clean finish.
Certification
You receive a CIGA guarantee certificate and updated EPC documentation.
Common Questions
FAQs
How do I know if my home has cavity walls?
Homes with a regular brick pattern (headers and stretchers alternating) typically have solid walls. A running bond pattern usually indicates a cavity wall. Our surveyor can confirm during your free assessment.
Is cavity wall insulation right for all homes?
Not always — some properties have narrow or contaminated cavities. We always survey before recommending, and will suggest alternatives if cavity wall insulation is not appropriate.
Will it affect the appearance of my home?
The drill holes are re-pointed using matching mortar and are barely visible once complete.
Get Started Today
Ready to Improve Your Home?
Book a free, no-obligation survey with one of our certified specialists and find out exactly what your home could achieve.