BOILER UPGRADE SCHEME
Boiler Upgrade Scheme: Up to £9,000 towards an air source heat pump
Eligible off-gas-grid homes replacing oil or LPG heating could receive up to £9,000 through the Boiler Upgrade Scheme. Other eligible property owners (including homes connected to mains gas) may still receive the standard £7,500 grant.
Start with a free property check and in indicative estimate for a low-carbon heating system. If you choose to proceed, we manage design, installation, documentation, and even the voucher application for you.
Temporary £9,000 rate available for qualifying applications from 21 July 2026 to 31 March 2027.
Eligibility criteria apply. Ofgem makes the final decision.
MCS-Certified
RECC Member
Free survey & quote
Same-working-day response
MCS-certified
RECC member
Free initial estimate
same-working-day response
What is the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme (BUS) is a UK Government grant for property owners in England and Wales replacing fossil-fuel heating with a low-carbon heating system. Zing Energy is an MCS-certified air source heat pump installer serving Wales and the West, providing survey-led design, managed installation and support with the voucher application.
What support is available?
Boiler Upgrade scheme support
If you’re eligible and replacing oil or LPG heating in an off-gas-grid home, you could receive up to £9,000 towards an air source heat pump.
Standard contribution of £7,500 may apply where higher support is not available.
Enhanced support
£9,000
Maximum contribution
For eligible homes replacing oil or LPG heating.
Standard support
£7,500
Towards installation
May apply where higher support is not available.
Could you qualify for the Boiler Upgrade Scheme?
Property owner
You own the property or are authorised to act for its owner
Existing heating system
You're replacing an eligible existing heating system
Full heating replacement
A full replacement rather than forming a hybrid system
Eligible property
The property is not social housing or an ineligible new build
Certified installation
The system will be installed by an MCS-certified installer and meet scheme requirements
Ofgem approval
All BUS conditions must be met and Ofgem makes the final eligibility decision
Could you receive the full £9,000?
The enhanced rate may apply if your property is currently heated by oil or LPG and has no mains-gas connection. If either condition does not apply, don’t rule yourself out – you may still qualify for the standard £7,500 grant.
Built for real homes
Designed around your property
Every home is different. Our survey-led approach ensures your heat pump system is right for your property, your comfort and your running costs.
- Heat loss assessment
- Radiator suitability check
- Hot water demand review
- Siting, access & noise assessment
- Electrical capacity review
From first check to completed installation
WHY ZING ENERGY?
Survey-led advice. Managed installation. Clear handover.
Expert survey & design
Right system, right size, right for your home.
Accredited installers
MCS-certified teams with quality assured installations.
End-to-end management
We manage design, installation and your voucher application.
Clear handover & support
Full handover, guidance and ongoing support when you need it.
Surveys across Wales and the West
We carry out home surveys across Wales and surrounding areas
South Wales & Border
Plus surrounding areas
west midlands
Plus surrounding areas
south west england
Plus surrounding areas
Thames Valley & S. Central
Plus surrounding areas
Your Questions, answered
Quick answers to the most common questions about the Boiler Upgrade Scheme and heat pumps.
Is an air source heat pump the same as an air-to-water heat pump?
‘Air source heat pump’ is a broad term. On this page, “air source heat pump” refers to an air-to-water system, which transfers heat from the outside air into a wet central-heating and hot-water system.
How much can I get through the Boiler Upgrade Scheme?
The standard Boiler Upgrade Scheme grant for an air source heat pump is £7,500. Until 31 March 2027, eligible properties currently heated by oil or LPG and without a mains-gas connection can receive an additional £1,500, taking the total grant to £9,000. Ofgem makes the final decision on eligibility.
Is the £9,000 guaranteed?
No. Zing Energy can assess the property and manage the application, but Ofgem makes the final eligibility decision. The voucher must be approved before it can be relied upon.
Do I need an EPC?
A valid EPC is no longer mandatory for BUS applications properly made from 28 April 2026. Where there is no valid EPC, the installer must provide the alternative evidence required by the scheme.
Will an air source heat pump work in an older property?
Property age alone does not answer the question. Heat loss, insulation, emitters, hot-water demand, available space and electrical requirements all matter. Zing Energy uses a technical survey to establish what the property needs.
Will I need new radiators?
Some properties need larger radiators or other changes to deliver the required heat efficiently at lower water temperatures. The survey and design will identify any proposed emitter or enabling work before you decide whether to proceed.
How much will I need to pay after the grant?
The remaining cost depends on the property, system size, and any enabling work. Zing Energy provides a property-specific proposal and itemised quotation after the free survey rather than using a potentially misleading example price.
Is the survey free?
The initial property check and indicative estimate are free. If you choose to progress, the survey/design stage costs £180 inc. VAT. This is non-refundable but will be credited from the final price of an installation if you choose to go ahead with the project.
Who applies for the voucher?
If you choose to proceed, Zing Energy’s compliance team applies through the Ofgem BUS Installer framework with the collected evidence and manages the application. Ofgem contacts the property owner directly for consent and may carry out further checks.
Will I need planning permission?
Many domestic air source heat pump installations in Wales can fall within permitted-development rules, but conditions apply to siting, size, boundaries, noise and the property itself. Listed buildings, conservation areas and unusual sites require individual checks.
What happens after I submit the form?
Our customer experience team reviews your enquiry and aims to make the first contact attempt within on working hour, during our Monday-Friday, 9am-5pm opening hours.
We use your address and initial details to prepare an indicative estimate, normally on the same working day. Enquiries outside these hours are picked up the next working day. If you would like to progress after reviewing your estimate, we explain the £180 survey/design stage and arrange the next steps.
Is the Boiler Upgrade Scheme available in Wales?
Can I qualify if my property is connected to mains gas?
Potentially, yes. Having a mains-gas connection means you cannot receive the temporary additional £1,500, but it does not by itself rule you out of the Boiler Upgrade Scheme. Eligible properties replacing an existing gas heating system may still qualify for the standard £7,500 grant.
What will I pay after the grant?
We start with an indicative estimate showing the estimated installation cost, assumed BUS grant and estimated amount you would pay. The property survey and bespoke design establish your final specification and itemised quotation. The grant amount depends on your property meeting the applicable scheme conditions.
Free property check
Start with a free property check
Tell us a little about your property. We’ll review your details and prepare an indicative heat pump estimate, showing any assumed BUS support separately. Your initial check and estimate are free; a £180 survey and design stage follows if you choose to progress after receiving the estimate.
- Takes around one minute
- Free, with no obligation
- Same-working-day response
This is an initial check, not a voucher application.
Accredited. Certified. Trusted.
Accredited. Certified. Trusted.