How to Claim the Boiler Upgrade Scheme Grant
Table of Contents
What Is the Boiler Upgrade Scheme and Who Can Claim It
Boiler Upgrade Scheme Eligibility: Check If You Qualify
Documents and Information You'll Need to Gather
How to Apply for the Boiler Upgrade Scheme
The Boiler Upgrade Scheme Application Process Explained
Boiler Upgrade Scheme Installation Timeline and What to Expect
After Your Grant Is Approved: Next Steps
Frequently Asked Questions
Last Updated: October 17, 2026
What Is the Boiler Upgrade Scheme and Who Can Claim It
The boiler upgrade scheme grant is a government funding programme that helps homeowners replace fossil fuel heating systems with renewable alternatives. At Heatgeek Wales, we help homeowners navigate this scheme to transition away from oil and LPG boilers towards sustainable heating solutions.
The scheme provides a grant towards the cost of installing an air source heat pump. This replaces your old boiler with technology that draws heat from the outside air, even in cold weather. It's one of the most practical ways to reduce your heating bills and carbon footprint simultaneously.
The programme is designed for homeowners who want to future-proof their properties against rising energy costs and the phase-out of fossil fuel heating. Unlike older grant schemes, this one focuses specifically on renewable heating technology that delivers long-term savings.
Key Takeaway The boiler upgrade scheme grant provides funding towards air source heat pump installation, making renewable heating accessible to more homeowners across Wales.
Boiler Upgrade Scheme Eligibility: Check If You Qualify
Your property must meet specific criteria to qualify for the boiler upgrade scheme grant. First, you need to own the building or have written permission from the owner. The property must be in England, Scotland, or Wales, and it must be your primary residence or a rental property.
Your heating system must currently use oil, LPG, or electric heating. The property also needs to have an Energy Performance Certificate (EPC) rated D or better. This ensures your home has adequate insulation and is suitable for heat pump installation.
Each property can only receive the grant once.
Watch Out If your EPC rating is below D, you'll need to improve your insulation first. Many homeowners underestimate this step; poor insulation means your heat pump won't perform efficiently, and you'll miss out on the full savings potential.
Key eligibility requirements:
Own or have written permission for the property
Current heating system uses oil, LPG, or electric
EPC rating D or better
Located in England, Scotland, or Wales
Each property receives the grant only once
Documents and Information You'll Need to Gather
Before applying for the boiler upgrade scheme grant, collect these documents. You'll need proof of ownership or written permission from the property owner. A mortgage statement, council tax bill, or utility bill showing your name works well.
Your Energy Performance Certificate is essential. If your EPC has expired, request a new one before applying. Many surveyors can complete this within a week.
Gather details about your current heating system. Note the fuel type, age, and any maintenance records. If you're unsure what you have, a qualified heating engineer can identify it during a survey.
You'll also need details of a qualified installer. At Heatgeek Wales, we're MCS-certified, which means we meet the standards required for grant applications. Any installer you choose must hold current MCS accreditation.
Documents to prepare:
Proof of ownership or written permission
Current Energy Performance Certificate
Details of existing heating system
Installer's MCS certification number
Bank details for grant payment
Identification (driving licence or passport)
How to Apply for the Boiler Upgrade Scheme
The application process begins online through the official scheme portal. Create an account and enter your property details. You'll provide your postcode, property type, and current heating system information.
Upload your Energy Performance Certificate. The system will verify it automatically. If there's an issue, you'll receive a notification asking you to provide an updated version.
Next, enter details of your chosen installer. Their MCS certification number is required. The scheme verifies this to ensure they're legitimate and qualified.
Review your application carefully before submitting. Check that all information is accurate. Any errors could delay your application or result in rejection.
Once submitted, you'll receive a reference number. Keep this safe; you'll need it for all future correspondence.
Pro Tip Apply as soon as you've chosen your installer. The scheme operates on a first-come, first-served basis, and funding can run out during peak periods. Having everything prepared means you can submit quickly when you're ready.
The Boiler Upgrade Scheme Application Process Explained
After submission, the scheme administrator reviews your application within 5 working days. They check your eligibility and verify your installer's credentials. Most applications are approved at this stage if your documentation is complete.

Once approved, you'll receive a grant letter confirming the funding. This letter is valid for 12 months. You must complete your installation within this timeframe to claim the grant.
Your installer will arrange a site survey. They assess your property's suitability for a heat pump and design a system tailored to your home. This is where data-backed design becomes crucial; at Heatgeek Wales, we conduct thorough heat loss surveys to ensure optimal system performance.
The installer submits a claim to the scheme after completing the work. They provide evidence of installation and your signed confirmation that the work is complete. The grant payment is processed to your installer, who deducts it from your final invoice.
Timeline overview:
Application review: 5 working days
Grant letter validity: 12 months
Installation completion: within 12 months
Grant claim processing: 2-4 weeks after completion
Boiler Upgrade Scheme Installation Timeline and What to Expect
Installation typically takes a few days for a standard air source heat pump system. Your installer will arrange convenient times to minimise disruption to your household.
Day one involves removing your old heating system and preparing pipework. The engineer will explain each step and answer any questions. You'll notice some noise and activity, but the process is straightforward.
Day two focuses on installing the new heat pump unit, usually positioned outside your property. Indoor components are connected, and the system is tested. Your engineer will show you how to operate the controls.
Day three involves final checks and system optimisation. At Heatgeek Wales, we use 24/7 remote monitoring to ensure your system performs at peak efficiency from day one. We'll demonstrate the monitoring dashboard and explain how it helps you track your energy savings.
After installation, your system needs 24 hours to settle before full operation. Your engineer will provide comprehensive instructions on system use and maintenance.
Best For Homeowners with solid walls, older properties, or those in rural areas with oil or LPG heating, the boiler upgrade scheme grant makes renewable heating affordable and practical for properties that benefit most from heat pump technology.
After Your Grant Is Approved: Next Steps
Once your installation is complete and the grant claim is processed, your new system is yours to enjoy. You'll see reduced heating bills immediately, with potential for significant savings compared to oil or LPG systems depending on your property's characteristics.
Register your system with your installer's warranty programme. Most MCS-certified installers, including Heatgeek Wales, provide extended warranties and ongoing support. This protects your investment and ensures your system operates reliably.
Monitor your system's performance through the remote monitoring platform. Track your energy consumption and identify opportunities for further efficiency gains. Many homeowners find that understanding their system's operation helps them optimise heating patterns and save even more.
Schedule annual maintenance checks. These are straightforward. Regular servicing keeps your system running efficiently and maintains warranty coverage.
Consider the long-term benefits. Your heat pump will operate for 15-20 years with proper maintenance. Over this period, the energy savings compound significantly.
Claiming the boiler upgrade scheme grant removes a major barrier to renewable heating. The process is straightforward when you have the right information and a qualified installer. Contact Heatgeek Wales for a survey, we'll assess your property's suitability, explain your options, and guide you through the entire grant application process. Our MCS-certified team ensures your installation meets all scheme requirements, so you can claim your funding with confidence and start enjoying the benefits of sustainable, efficient heating today.
Frequently Asked Questions
How do I apply for the Boiler Upgrade Scheme grant?
You apply through an MCS-certified installer, not directly to the government. Once you've chosen an installer and they've conducted a survey, they'll submit your application to the scheme administrator on your behalf. You'll need to provide proof of property ownership or tenancy, energy performance details, and identification. The installer handles most of the paperwork, which speeds up the process significantly and ensures compliance with scheme requirements.
What are the main eligibility requirements for the Boiler Upgrade Scheme?
Your property must be in England, Scotland or Wales; you must own the property or have the owner's written consent. Your existing heating system must be a fossil fuel boiler (oil, LPG, or gas). The property must have a valid Energy Performance Certificate. You cannot claim if you've already had the work completed, applications must be made before installation begins.
Can I claim the Boiler Upgrade Scheme grant after my heating system has been installed?
No. You must apply for the grant before installation work starts. The scheme requires that an MCS-certified installer submits your application and receives approval before any work begins. If you've already installed a heat pump without securing the grant first, you cannot retrospectively claim funding. Always contact an approved installer and complete the application process before your installation date.
How long does the Boiler Upgrade Scheme installation take?
Most heat pump installations take a few days, depending on your property's layout, the complexity of the system design, and any structural work required. Once your grant is approved, the installer will schedule your installation. The entire process from application to completion varies based on installer availability and the time taken to gather required documentation.
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