Heat pumps
Boiler Upgrade Scheme
£7,500
£9,000 where the home is off the gas grid and heated by oil or LPG. Since 28 April 2026 a valid EPC is no longer required, which puts a lot of properties back in scope.
For UK installers
The grant question,
The grant question,
answered on your site.
GrantCheck is a grant-eligibility checker built into a UK installer’s own website. A homeowner enters their postcode, it checks the live 2026 scheme rules against real government property data, and returns an indicative figure in about 30 seconds — then the enquiry lands in the installer’s inbox.
Two lines of code · nothing rebuilt · live in days
On your site it wears your logo and your colours.
Try it
Check a real address.
The working checker against the live 2026 rules. Switch the trade and watch the questions and the scheme change with it — that is the same configuration your install would get.
Indicative figures from the current scheme rules. Eligibility is confirmed at application.
Why it matters
Eligibility searches are
Eligibility searches are
the warmest lead there is.
What most installer sites say
“Government grants available — contact us to find out more.”
A dead end. It asks someone to pick up the phone before they know whether it is worth it, so most of them do not. They go back to Google.
What yours says
“You look eligible for £7,500 under the Boiler Upgrade Scheme.”
In about thirty seconds, from a postcode. And because they have just seen a real number, giving you their name is the obvious next step rather than a commitment.
- Someone checking eligibility has already decided
There is a difference between “heat pump cost” and “am I eligible for the boiler upgrade scheme”. The first is research. The second is someone who wants it and is checking whether they can have it — the warmest a homeowner gets before they pick up the phone. That is the search GrantCheck answers.
- And there are more of them every year
The scheme now runs to 2030, and since 28 April 2026 a property no longer needs a valid EPC to apply. Households that were shut out are now eligible, and the first thing they do is search whether they qualify.
- Most installer sites still have the old rules
Any site still telling homeowners to sort their loft insulation out first is turning away households who now qualify — and looking out of date to the ones who already know the rule changed.
- They will not work it out themselves
Eligibility depends on the property, the heating it has now, whether there is a gas connection, and which nation it is in. A homeowner on gov.uk gives up. A homeowner on your site gets an answer.
- They are asking two or three installers
Whoever answers first is in front. A contact form answered on Monday is behind whoever replied at nine on Sunday evening.
- If you pay for clicks, this is what makes them count
Running Google Ads on “heat pump grant” puts you in front of exactly the right person — and then lands them on a page that cannot answer the thing they searched for. GrantCheck catches that click while they are still interested, and turns it into a name and a number. You are not buying leads at that point; you are generating your own.
Every enquiry it produces came through your own website, so it is yours alone — not sold to you and three competitors at the same time. And a figure you cannot stand behind is worse than no figure at all: it dies at the survey and takes the job with it. That is why this reads the live rules rather than a number someone typed in last year.
What the visitor sees
Thirty seconds, start to finish.
01They type a postcode
One field. No account, no form, no twenty questions before they get anything back.
02It finds their actual house
Their address is resolved against the government EPC register — so the answer is about that property, not about properties like it.
03It asks only what changes the answer
Two or three questions, and it stops the moment the outcome is certain. Nobody is interrogated for a "no" it already knew.
04They get a number, or an honest no
£7,500, £9,000 off gas grid, or "not eligible — here is the rule you did not meet".
Under the bonnet
It is not a form with a lookup table behind it.
Anyone can put a grant calculator on a website. Six things separate one that wins you jobs from one that costs you a wasted survey and an awkward phone call.
01
It knows the difference between "no" and "don’t know"
Most checkers are a yes/no form, so a missing fact quietly becomes a yes. This one runs on three answers — pass, fail, and not yet known — and missing information is never treated as favourable. That is the difference between a warm enquiry and a wasted survey.
02
It reads the real property register
The address is resolved against the government EPC register. Where a property has more than one certificate it takes the most recent registration, and where that is genuinely ambiguous it says so instead of picking one.
03
It knows where the border is
The Boiler Upgrade Scheme covers England and Wales; Scotland runs its own. Jurisdiction is decided by the local authority on the certificate, not by the postcode — because CH, SY and HR postcodes straddle the border and a postcode test gets those households wrong.
04
The off-gas uplift needs both conditions
Heating with oil does not by itself mean off grid. The extra £1,500 needs oil or LPG heating and no mains gas connection, so the checker asks about the connection separately. Nobody is shown £9,000 who cannot get it.
05
Your checker cannot show another trade’s figure
An air-con installer's checker is bound to the air-to-air scheme in the engine, not in the template. It physically cannot render £7,500 — which matters, because that is three times what you can actually deliver.
06
Every answer can be reproduced later
Each assessment is stamped with the guidance version, the assessment date and a hash of the exact rules used. If a homeowner asks in March why they were told what they were told in August, the answer is reconstructable rather than a shrug.
Configured for your trade
One checker. Set to
One checker. Set to
the grants you actually fit.
GrantCheck is not a generic grant lookup. We set it to your trade before it goes live, so a visitor is only ever shown the schemes that apply to the work you do — and never quoted a figure you cannot deliver.
Air conditioning
Air-to-air heat pump grant
£2,500
Air-to-air systems, applied for through the same route as a heat pump. Most air-con installers still do not tell homeowners this grant exists.
Insulation
Warm Homes: Local Grant
Varies
Delivered by participating councils, so eligibility depends on the address, the household and the EPC band. There is no single headline figure and the checker does not invent one.
EV charging
EV chargepoint grants
£500–£2,000
5 separate schemes, all closing 31 March 2027. Which one applies turns on who is asking and where they park rather than on the building, so this checker opens on the applicant instead of a figure.
Figures checked against gov.uk on 22 September 2026. England and Wales; Scotland and Northern Ireland run separate schemes. Fit something not listed? The rules are configuration, not code — ask us.
What you get
This lands in your inbox.
Not “someone visited your website”. A named person, their property, and what they are actually after — before they have rung anyone else.
- Already qualifiedThey answered the questions before you picked up the phone.
- Yours aloneThey came from your website. Nobody else gets this one.
- Email, WhatsApp or bothWherever you actually look.
New enquirynow
Sarah M.
07XXX XXX XXX · mobile
M20 4RT · Manchester · in your area
Semi-detached · EPC D · owner-occupier
Heats with mains gas · no low-carbon heating
Indicative grantBoiler Upgrade Scheme£7,500
Illustrative — this is the shape an enquiry arrives in, not a real customer.
Setup
Two lines of code. Live in days.
Nothing on your site gets rebuilt or ripped out. It works on WordPress, Wix, Squarespace or a custom build.
01
Book a 15-minute call
We look at your site and your trade, and tell you straight whether GrantCheck is worth it for you.
02
We brand it to you
Your logo, your colours, your tone. Configured to the schemes you actually install against.
03
You paste two lines
Or we do it. Either way you are live in a few working days.
<div data-grantcheck="wgt_your_key_here"></div>
<script src="https://installerhq.co.uk/embed.js" async></script>
FAQ
GrantCheck, answered
Which grants does it check?
The Boiler Upgrade Scheme (£7,500, rising to £9,000 for off-gas homes on oil or LPG), the Air-to-air heat pump grant (£2,500), and Warm Homes: Local Grant eligibility for insulation. Which of those a visitor sees depends on your trade.
Where does the property data come from?
The government EPC register, using the address the homeowner picks. That is what lets it answer about their actual property rather than asking them to guess their own EPC band.
Are the figures guaranteed?
No, and it never says they are. GrantCheck gives an indicative figure to start the conversation; the exact amount is confirmed at official application. The wording on screen is deliberately careful about this.
What if someone is not eligible?
It tells them, and it tells them which rule they failed. That is better for you than a false maybe — and it still captures them, because plenty of "not yet" homeowners become customers later.
What happens when it cannot work something out?
It says so, and asks the one question that would resolve it. If it genuinely cannot get there — a register outage, an ambiguous property — it says that too and hands the homeowner to you, rather than guessing in your name. An eligibility tool that guesses is worse than no tool.
How do you know the insulation postcodes and councils?
It holds the published DESNZ datasets — currently 254,014 eligible postcodes and 277 participating local authorities — and keeps two things separate that homeowners conflate: whether the property qualifies, and whether their council is actually running the scheme.
What happens when the rules change?
Scheme rules live in one place and are versioned, so a change is made once and every customer's checker is correct the same day. The Boiler Upgrade Scheme changed twice in 2026 — extended to 2030, and the EPC requirement dropped on 28 April 2026. Most installer websites still have not caught up.
The rest of the kit
What else sits on your site
Put GrantCheck on your site
this week.
Fifteen minutes. We look at your site, show you exactly what it would do, and give you a price.
GrantCheck · SolarCheck · AnswerHQ