Boiler Upgrade Scheme
Free home energy survey for heat pumps, solar panels and battery storage across Wales and the South of England.
Funding, savings and recommendations are subject to eligibility, property suitability and survey findings.
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Designed around your property. Installed by certified professionals. Supported from survey through to aftercare.
£7,500
Standard BUS grant
£9,000
Enhanced grant for oil & LPG homes
If your home is currently heated with oil or LPG, you can take advantage of an increased £9,000 grant to help upgrade to an air source heat pump through the Boiler Upgrade Scheme. Most other homes can access the standard £7,500 grant. We'll determine your best options during your free survey. Ready to find out if you're eligible?
Subject to eligibility, property suitability and scheme rules. Grant values and dates are set by government and may change.
The essentials at a glance - we confirm everything properly during your free survey.
Owner-occupiers, landlords, second-home and park-home owners, and small non-residential properties in England and Wales can all qualify.
Survey-led recommendations, we look at your home before suggesting a system.
Replace fossil fuel heating with a lower-carbon electric heating system.
Best for: Homes using gas, oil, LPG or electric heating.
Generate your own electricity from daylight and reduce grid reliance.
Best for: Homes with suitable roof space and orientation.
Store unused solar electricity and use more of your own energy later.
Best for: Homes generating solar or planning to.
A combined system for a lower-carbon, lower-reliance home energy plan.
Best for: Homeowners wanting a long-term renewable strategy.
Installed By CRS Energy
One MCS-accredited team does the survey, design, grant application, install and aftercare - no handoffs, no marketplace. CRS Energy is responsible from first visit through to sign-off and beyond.
Accreditations
Hundreds of families have upgraded their homes through CRS Energy.
"Highly competent work, from initial design to installation. We had an air source heat pump, solar panels and extensive insulation installed. Large teams of skilled tradespeople arrived in planned succession. Work was completed within agreed timescales. Problems, where they arose, were quickly resolved. They even painted after completing the work!"
Frank Ciccotti
"I contacted my local MP Elwyn Vaughn who gave me the name of a company to contact, who then put me in touch with Complete Remedial Solutions in Bridgend. This company took over the installation to finally sort out the problems and get the system up and running today Wednesday 29/05/2024. The manager Rui and the electricians Mike and Mathew who I would recommend to anyone needing a heating upgrade installation, have been absolutely first class in their care and work for help in sorting things out. I can't thank you enough guys. If I could give more than 5 stars I would."
Ken
"Very helpful, friendly and reliable. I used CRS in spring 2023 to do a fairly big retrofit including installing an Air Source Heat Pump, completely new 'wet' central heating system and a small solar panel array. Keith and the team were really helpful and friendly throughout and although there were a few hiccups and delays for various reasons, they kept communicating with me which really helped, until it was all completed. I wouldn't hesitate to use them again."
Polly
A heat pump, solar panel system or battery should not be sold as a generic package. We check your property, heat loss, current heating, radiator output, roof suitability and funding route before recommending the right next step.
Check Your Home
Calculate Heat Loss
Review Radiators And Hot Water
Check Solar And Battery Suitability
Explain Funding Routes
Recommend Next Step
Your Free Home Energy Survey
We measure how much heat each room loses through walls, floors, ceilings and windows so the system can be sized accurately, not over- or under-specified.
Existing radiators are checked against the lower flow temperatures a heat pump runs at, so we can flag any that may need upsizing for comfortable warmth.
We assess whether your current cylinder is heat-pump compatible, correctly sized for your household, and well insulated, or whether a replacement should be quoted.
We inspect loft depth and wall construction (cavity, solid or timber) to confirm whether your home retains heat well enough for a heat pump to run efficiently.
Window type, seals, doors and obvious draught paths are reviewed, since uncontrolled air leakage is one of the biggest causes of heat pump underperformance.
We identify a suitable position for the external unit considering airflow, noise to neighbours, pipework runs and permitted development requirements.
Your existing fuel (oil, LPG, gas, electric) shapes the running-cost comparison and confirms which grant routes, including the Boiler Upgrade Scheme, may apply, subject to eligibility.
We check roof orientation, pitch, shading and consumer unit space to see whether solar PV and battery storage could pair with the heat pump to lower running costs.
Any heat pump, solar or battery recommendation is based on evidence from your home, not assumptions. We check the points that decide sizing, comfort and grant eligibility.
A side-by-side view of the support routes available, subject to eligibility.
You never handle the grant money and never repay it - it comes off your quote before you pay anything. Here's the process, step by step.
GRANT JOURNEY
We survey your home, run the heat-loss calculations and confirm which grant route applies.
The full grant value is deducted from your quote upfront - before you pay anything. That's £7,500 for most homes, or £9,000 for eligible oil and LPG heated homes from 21 July 2026. It's a scheme requirement, not a favour.
As the MCS-certified installer, CRS Energy submits the grant application and all supporting evidence. Homeowners can't apply directly - the scheme is installer-led.
Ofgem will email you directly (from boiler.upgrade.scheme.ofgem@notifications.service.gov.uk) to confirm your consent and verify your identity. This is genuine and important - you have 14 days to respond, and the application can't proceed without it. We'll remind you when it's due.
Once your voucher is issued, we install and commission your system to MCS standards, then claim the grant directly from Ofgem. Nothing extra for you to do.
Start with a free home energy survey and we'll walk you through your options.
Free Printable Guide
A printable PDF you can keep, share or read offline. Covers the essentials without wading through the full scheme rules.
Choose a topic to see the most common questions.
Still Unsure? Book A Free Survey And We'll Explain Your Options.
Your Free Survey Can Include
Funding and recommendations are subject to eligibility, property suitability and survey findings. The Boiler Upgrade Scheme and Oil / LPG uplift are government schemes with their own rules and application processes. CRS Energy will explain the likely route before any paid work begins.
