Cavity Wall Insulation UK – Reduce Heat Loss and Lower Energy Bills
Cavity Wall Insulation UK – If your home was built after the 1920s, it likely has cavity walls, which are constructed with two layers of brick separated by a gap. Without proper insulation, as much as 33% of your home’s heat can escape through these walls, leading to higher energy bills and colder living spaces.
At E-Green, we provide professional cavity wall insulation services across the UK, helping homeowners improve energy efficiency, reduce heat loss, and save significantly on heating costs while keeping their homes warm and comfortable.
Discover if you qualify for
100% FREE energy
efficiency upgrades!
Fully funded solutions to improve your home’s energy efficiency
Find out if you are eligible for 100% FREE energy efficiency upgrades, simply by entering your postcode:

Benefits of Cavity Wall Insulation
Save up to £400 per year by preventing heat loss and reducing the need for central heating.
Maintain consistent indoor temperatures throughout the year—warmer in winter, cooler in summer.
Reduce your carbon footprint and improve your home’s Energy Performance Certificate (EPC) rating.
Most cavity wall insulation jobs are completed within a day, with minimal disruption to your property.

Installation Booking
Our engineers will be in touch to book a survey and installation.
Cavity Wall Insulation Costs & Grants
Depending on your property size and type, cavity wall insulation typically costs between
£500–£1,500. But here’s the good news:
You may qualify for 100% free cavity wall insulation under UK government-backed schemes
such as:
- ECO4 Scheme
- Great British Insulation Scheme (GBIS)
- Local Authority Flex (LA Flex)
We help you check your eligibility and apply for funding—so you pay nothing in many cases!

Cavity Wall Insulation Costs & Grants
Depending on your property size and type, cavity wall insulation typically costs between
£500–£1,500. But here’s the good news:
You may qualify for 100% free cavity wall insulation under UK government-backed schemes
such as:
Installation Booking
Our engineers will be in touch to book a survey and installation.
- ECO4 Scheme
- Great British Insulation Scheme (GBIS)
- Local Authority Flex (LA Flex)
We help you check your eligibility and apply for funding—so you pay nothing in many cases!

How Cavity Wall Insulation Works
- Small holes are drilled into the exterior walls.
- High-quality insulation material (e.g., mineral wool or polystyrene beads) is injected
into the wall cavity. - The holes are filled and matched to your brickwork—leaving your home looking the
same, but performing better.
How Cavity Wall Insulation Works
- Small holes are drilled into the exterior walls.
- High-quality insulation material (e.g., mineral wool or polystyrene beads) is injected
into the wall cavity. - The holes are filled and matched to your brickwork—leaving your home looking the
same, but performing better.

Who Is It For?
Cavity wall insulation is ideal for:
✅ Homes built between 1920–2000
✅ Brick walls with a cavity of 50mm or more
✅ Properties in good structural
✅ condition Households looking to improve energy efficiency and reduce heating costs
Not sure if your home is suitable? We offer free home surveys and expert advice.
Why Choose E-Green?
✅ Certified, experienced installers
✅ Full support with grant applications
✅ Competitive pricing and free quotes
✅ Nationwide UK coverage
✅ Friendly, reliable service you can trust
We make the process smooth, from initial consultation to final installation.
Get Your Free Cavity Wall Insulation Quote Today
Ready to make your home warmer and more energy-efficient? Click below to book your free survey or speak to our team.
Call Us:
0800 999 1590
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Find out if you are eligible for 100% FREE energy efficiency upgrades
Fully funded solutions to improve your home’s energy efficiency
Find out if you are eligible for 100% FREE energy efficiency upgrades, simply by entering your postcode:
Fully funded solutions to improve your home’s energy efficiency
Find out if you are eligible for 100% FREE energy efficiency upgrades, simply by entering your postcode:
Address
Birmingham (Head Office): 1 Cranmore Drive, Shirley, Solihull, West Midlands, B90 4RZ
London: One Canada Square, Level 8, London, E14 5AB
Lancashire: Unit A1, Arundel House, Foxhole Road, Chorley, PR7 1NY
Sunderland:
Unit 5, Wapping Park, Gresley Road, Peterlee, SR8 2LU
Scotland:
The Pentagon Business Centre, 36–38 Washington Street, Glasgow, G3 8AZ
Wales:
Suite 99, 33-35 Cathedral Road, Cardiff, CF11 9HB
Phone
08009991590