Green. Free. Forever
Free Home Upgrades in England – Heat Pumps, Boilers & Insulation
Get a free air source heat pump, boiler upgrade, or loft insulation through the UK government’s ECO4 scheme. If you live in England and claim qualifying benefits, you may be eligible for fully funded home energy efficiency improvements to reduce your heating bills and carbon footprint.
At Warm Wave, we install air source heat pumps, electric storage heaters, loft insulation, and provide free boiler replacements – all at no cost to you. Our fully accredited team serves homes across England including rural and off-gas areas.
✅ High-efficiency air heat source heating
✅ Free boiler replacement under ECO4
✅ Government-funded loft insulation
✅ Electric storage heater upgrade grants
Check if you qualify in 60 seconds – no obligation.
Apply in 60 Seconds
Free Survey
Qualified Engineers
Free install
Live in the UK? You could qualify for a free air source heat pump, boiler upgrade, or insulation under the ECO4 scheme.
Discover
OUR GRANTS
Free Boiler Grant
Get a free boiler replacement under the UK ECO4 scheme.
Lower your heating bills with a new A-rated boiler.
Available for homes with qualifying benefits.
Free Insulation Grant
Upgrade your home with cavity wall or loft insulation.
Reduce heat loss and stay warmer in winter.
Funded through ECO4 grants across the UK.
Free First Time Central Heating Grant
Grants for first-time central heating systems.
Ideal for homes with no existing gas heating.
Fully funded for eligible low-income households.
Free Heat Pump Grant
Get a free air source heat pump installed at no cost.
Energy-efficient, eco-friendly heating alternative.
Offered under the government’s ECO4 scheme.
About
Warm Wave
At Warm Wave, we’re on a mission to make UK homes warmer, greener, and more energy efficient. Through the government-backed ECO4 scheme, we help homeowners and private tenants access free home upgrades — including air source heat pumps, boiler replacements, electric storage heaters, and loft insulation.
Our certified installers work across the UK to deliver zero-cost heating and insulation solutions for households receiving benefits. Whether it’s replacing an old gas boiler with an A-rated model or installing a low-carbon heat pump system, our goal is to reduce energy bills, lower carbon emissions, and create healthier homes.
As a fully accredited installer under TrustMark, Gas Safe, and MCS, we follow best practices and ensure quality installation. Our team is passionate about helping families qualify for free government grants with minimal hassle — and maximum impact.
What Our Customers Say
Homeowners across the UK are loving their ECO4-funded upgrades!
“The Warm Wave team helped us get a free boiler under the ECO4 scheme. The installers were professional, and the whole process was smooth. Highly recommended!”
– Sarah M, Manchester“We got loft insulation and a heat pump fitted at no cost. Our energy bills are lower already, and the house feels warmer. Thanks to Warm Wave and ECO4!”
– James L, Kent“Very impressed with the service. They helped me apply for a free storage heater upgrade. It was quick, and the installers cleaned everything up too.”
– Priya R, Birmingham“Excellent service and friendly staff. I received a new central heating system through Warm Wave with no hassle. Highly recommended for ECO4 grants!”
– Tom W, EssexNationwide Scheme
Switching to a central heating system is one of the most effective ways to cut energy bills and increase home comfort. Unlike standalone electric heaters, modern gas central heating delivers consistent, efficient warmth to every room — ideal for UK homes.
Upgrading to an A-rated combi boiler or Worcester Bosch boiler under the ECO4 scheme can significantly improve your property’s energy performance and even boost resale value. Energy-efficient homes are more attractive to potential buyers.
Today’s central heating upgrades also work seamlessly with smart thermostats, giving you remote control over your heating schedule. You’ll save more energy, reduce your carbon footprint, and make your home future-ready — all with zero upfront cost if you qualify for a government boiler grant.
Understanding Your Property’s Energy Performance (EPC)
Most homes in the UK already have an Energy Performance Certificate (EPC), which provides a clear indication of a property’s energy efficiency. If your property does not currently have an EPC or if the certificate has expired, one will be issued as part of your ECO4 survey.
You can use the official EPC register to find existing documentation for:
An Energy Performance Certificate (EPC)
A Display Energy Certificate (DEC) for public buildings
An air conditioning inspection certificate and report
The EPC certificate includes vital information such as your property’s energy efficiency rating (ranging from bands A to G), floor area in square meters, and the current heating system in place—whether it’s a boiler, combi boiler, or electric heaters.
Under the ECO4 scheme, homes rated in bands D, E, F, or G may qualify for funded home energy upgrades. A key requirement is that the property must show the potential for a two-point improvement in its SAP rating—for example, upgrading from band E to band C.
To achieve this, properties typically require home insulation measures (like loft or wall insulation) followed by upgrades to heating controls or the installation of an efficient central heating system. The EPC report will also recommend suitable energy-saving improvements and outline the estimated annual savings for the household.
ECO4 Grant Scheme – Cut Energy Bills with Free Home Upgrades
The ECO4 Grant Scheme is a UK government-backed initiative designed to help eligible homeowners and private tenants improve their home’s energy efficiency — reducing energy bills and cutting carbon emissions.
If you receive qualifying benefits and live in a property with a low EPC rating, you could be entitled to a range of free home energy upgrades, including:
✅ A-rated boiler replacement or combi boiler upgrade
✅ First-time central heating system installation
✅ Full loft, cavity wall, or solid wall insulation
✅ Renewable solutions like an air source heat pump
✅ Smart heating controls and smart thermostat integration
These fully funded upgrades don’t just make your home more comfortable — they help eliminate cold spots, increase property value, and deliver long-term savings on your energy bills.
Our expert team and certified installers handle everything — from eligibility checks to quick, no-cost installation.
🎯 Don’t miss out. Apply now to see if you qualify for free energy-saving upgrades under the ECO4 scheme.
Activities
WARM WAVE
ECO4 Grant Scheme – Cut Energy Bills with Free Home Upgrades
Through the UK government’s ECO4 scheme, eligible homeowners and tenants can access a range of fully funded energy-saving improvements — with no upfront cost.
- ✅ Free boiler replacement (including combi & Worcester Bosch)
- ✅ First-time central heating system installation
- ✅ Loft and cavity wall insulation upgrades
- ✅ Free air source heat pump installation
- ✅ Smart thermostats and advanced heating controls
- ✅ Lower heating bills and eliminate cold spots
- ✅ 100% funded — no repayments, no hassle
Apply online in under 60 seconds to see if you qualify.
✅ Check Your Eligibility Now