Why Ofgem writes to you
The grant application is made by the installer, not by you. Ofgem, which runs the scheme, needs to know that the owner of the property has actually agreed to the work and to the installer applying in their name. The email is how it checks. It protects you as much as the scheme: an application you did not agree to should never get as far as a voucher.
GOV.UK also says Ofgem may phone or visit to confirm the details, and that MCS may carry out its own checks on the installation.
The 14-day window
Ofgem's guidance gives the property owner 14 days from its request to confirm consent. If no confirmation arrives in that time, the application may be rejected. That does not end your chance of a grant, but the installer would need to apply again, which costs time, and if the budget or a date matters to you (for example the £9,000 rate's application deadline of 31 March 2027), lost time can matter.
Before you confirm, check
- The property address is the one where the heat pump will go.
- The installer named is the firm whose quote you accepted.
- The technology matches the quote: air source, ground source or air-to-air.
- The owner details are yours (or the right owner's, for a jointly owned or business property).
If anything does not match, do not confirm. Contact the installer first, and Ofgem if needed.
If you did not ask for this
If an email about a heat pump grant application arrives and you have not accepted a quote, do not confirm it. Contact Ofgem using the details on its own website, not any link or number in a message you are unsure of.
After you confirm
Once Ofgem has your confirmation and approves the application, it issues a voucher in the installer's name. From then the installer has 3 months for air source (6 for ground source) to install, commission and claim the voucher. The grant, £7,500 for most homes, comes off your bill. Our page on how the grant is paid covers what happens next, and the deadlines guide lists every date.
If you will be away, or own with others
The 14 days run from Ofgem's email, so if you will be travelling or hard to reach when the installer applies, tell them, and make sure the email address on the application is one you check. For a property with more than one owner, agree which owner's details go on the application, because that is the person Ofgem contacts. For a property owned by a company, the contact named on the application needs to be someone who can confirm on the company's behalf.
Keeping a record
Keep Ofgem's email and your reply with the quote. If a question arises later, about the grant amount, the property or the timing, the dated confirmation shows exactly what you agreed to and when.
What the confirmation does not do
Confirming the application does not commit Ofgem to approving it, and it does not sign you up to anything beyond the installer acting for you on this application. It also does not replace your contract with the installer, which sets the price, the dates and what happens if the grant is refused. Read both, and keep both. If anything about the application changes after you confirm, such as a different heat pump or a change of property details, ask the installer whether Ofgem needs to be told.
If you are unsure whether an email really comes from Ofgem, do not click its links: go to Ofgem's website directly and use the contact details there to check.