Cavity Wall Insulation is a cost-effective solution to improve your home's energy efficiency
It fills the gap between your home’s inner and outer walls with insulating material, creating a thermal barrier. Even in older properties, cavity wall insulation can significantly reduce heat loss, lower your heating bills, and create a more comfortable living environment
Cavity Wall Insulation
Improve your home’s energy efficiency, reduce bills, and increase comfort with ECO4-approved cavity wall insulation
Why Cavity Wall Insulation Matters
Reduce your energy bills by up to 25% while keeping your home warm in winter and cool in summer. Without insulation, a quarter of your home’s heat escapes through the walls. With ECO4-approved insulation, heat stays where it belongs. For eligible UK households, this upgrade comes free, saving approximately £315 annually.
Our certified team handles everything from initial assessment to final quality check. Installation takes just 2-3 hours with minimal disruption. We use materials that exceed building regulations (270mm thickness), ensuring maximum efficiency for years. Your home will be noticeably warmer within 24 hours.
Who Can Claim This Opportunity?
You may qualify if you receive government benefits or if your property has an EPC rating of D or below. Homeowners and private tenants (with landlord permission) are eligible.
- Receive government benefits (Universal Credit, Pension Credit, Child Tax Credit)
- Have income under £31,000
- Property has an EPC rating of D or below
- Properties built before 1983 with minimal existing insulation
Beyond immediate bill savings, proper insulation reduces your carbon footprint by 530kg annually and can increase property value by up to 16%. ECO4 funding is limited and available until March 2026. Don’t miss this chance to enhance your home’s comfort and efficiency at zero cost.
Contact us today for a free eligibility check and take the first step toward a warmer, more energy-efficient home at no cost to you.
What is Cavity Wall Insulation?
The Cavity Wall Insulation Grant is a key part of the ECO4 government scheme, designed to help households lower energy bills, reduce carbon emissions, and enhance home warmth.
This grant is available for homes with unfilled cavity walls, allowing homeowners and tenants to benefit from free cavity wall insulation—improving energy efficiency and comfort.
It’s ideal for properties losing heat through uninsulated walls, leading to higher energy costs. Typically, cavity wall insulation can cost between £500 and £2,500, but with this grant, eligible households can get it installed at no cost.
By upgrading your home’s insulation, you can enjoy a warmer home, lower energy bills, and a reduced carbon footprint—all while supporting the UK’s green energy goals.
Why Choose Cavity Wall Insulation?
Cavity wall insulation is a home improvement solution that involves filling the gap between the inner and outer walls of a property with insulating material. This creates an effective thermal barrier that prevents heat from escaping your home during winter and keeps it cooler during summer months. The process typically involves drilling small holes in the exterior walls, injecting insulation material (such as mineral wool, polystyrene beads, or foam) into the cavity, and then sealing the holes afterward. Properly installed cavity wall insulation can significantly reduce energy bills, improve comfort by eliminating cold spots, reduce condensation issues, and lower your carbon footprint by decreasing the energy needed to heat your home. It’s particularly beneficial for properties built between 1920 and 1990, which often have unfilled wall cavities.
How It Works?
Our professional installers drill small holes in your external walls, inject specialized insulation material into the cavity, and then seal the holes with matching mortar. The insulation creates a continuous thermal barrier that prevents warm air from escaping in winter and keeps your home cooler in summer.
How It Works
Our simple 3-step process to get your home upgraded with ECO4 funding
Apply Online
Answer a few quick questions to find out if you qualify for the ECO4 energy efficiency scheme.
Free Home Survey
A certified professional will evaluate your current heating system and property to determine the best upgrades.
Hassle-free Installation
Enjoy stress-free installation from expert and gas safe registered Engineers with minimal disruption to your home.
Cavity Wall Insulation Benefits
Discover how cavity wall insulation can transform your home’s comfort and efficiency
Lower Energy Bills
Reduce heat loss through your walls and enjoy significant savings on your household heating costs year after year.
Carbon Footprint Reduction
Help combat climate change by reducing your home’s energy consumption and carbon emissions with proper insulation.
Year-Round Comfort
Keep your home warmer in winter and cooler in summer with effective thermal regulation from cavity wall insulation.
Maintenance-Free
Once installed, cavity wall insulation requires no maintenance and continues working effectively for the lifetime of your property.
Quick Installation
Enjoy minimal disruption with our efficient installation process that’s completed in hours, not days, with no interior mess.
Government Approved
Benefit from insulation that meets all building regulations and may qualify for government funding through energy efficiency schemes.
Reduced Condensation
Properly insulated walls help prevent condensation and reduce the risk of damp and mold problems in your home.
Increased Property Value
Improve your home’s energy efficiency rating (EPC) and potentially increase its market value with proper cavity wall insulation.
Energy Performance Certificate (EPC) Ratings Explained
EPCs grade properties from A+ (most efficient) to G (least efficient), with each band representing different energy consumption levels. A+ indicates net zero CO₂ emissions, while G represents excessive energy usage.
Ratings evaluate insulation quality, heating system efficiency, boiler type, and renewable energy sources. Since April 2020, properties must achieve E rating or better to meet regulations.
Government initiatives like the ECO4 Scheme and Boiler Upgrade Scheme provide funding to improve energy efficiency. Upgrading your property can significantly reduce energy bills while creating a more sustainable living environment.
Understanding your EPC rating helps determine eligibility for these valuable support programs.
Energy Performance Certificate (EPC) Ratings Explained
EPCs grade properties from A+ (most efficient) to G (least efficient), with each band representing different energy consumption levels. A+ indicates net zero CO₂ emissions, while G represents excessive energy usage.
Ratings evaluate insulation quality, heating system efficiency, boiler type, and renewable energy sources. Since April 2020, properties must achieve E rating or better to meet regulations.
Government initiatives like the ECO4 Scheme and Boiler Upgrade Scheme provide funding to improve energy efficiency. Upgrading your property can significantly reduce energy bills while creating a more sustainable living environment.
Understanding your EPC rating helps determine eligibility for these valuable support programs.
Improve Your EPC Rating with UK Cavity wall Insulation Grants
Transform your home into a cozy, energy-efficient sanctuary. Cavity wall insulation fills the gap between your walls, preventing up to 35% of heat loss, slashing energy bills by £300+/year, and reducing carbon emissions by 670kg annually. Perfect for properties built between 1930-1995 looking to boost EPC ratings and increase market value while enjoying government-funded installation.
Why It Matters for Property Value?
Homes with high EPC ratings (Band C or above) sell 20% faster and attract premium prices. In competitive markets, energy-efficient properties stand out, making cavity wall insulation a smart investment for homeowners planning to sell or rent.
