Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
ASHP install contract and BUS grant money
Hello! I today received my first quote from an installer who actually came to the house (two others so far were preliminary online-only guess-quotes). I was a little surprised to see one thing in the contract: it states that I have the pay the £7500 extra if the BUS grant does not go through.
Is that a typical way that installers deal with the BUS grant in contracts?
My first thought was: they are MCS certified, so they know what is required to be done with the actual install and the paperwork ... I have no ability myself to influence if the BUS grant succeeds, so why am I on the hook for the cost (lack of rebate) if Ofgem does not pay out?
I searched on this forum and found @grahamh Graham's post about BUS ( https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/the-new-heat-pump-grant-bus ) and he did mention something that made me have a second thought -- to quote him:
They will quote and then register the quote with the BUS website. Ofgem who run the BUS scheme will contact the homeowner to check they have been quoted and are happy, if they are the installer will be told to proceed and a voucher will be put aside for the job. Once the job is installed the installer will invoice the homeowner the cost of the heat pump minus £5000. The homeowner will be asked to confirm to Ofgem that they are happy. When they confirm they are the voucher will be issued to the installer, they will or should receive the £5000 within a week from Ofgem.
(He wrote this before it went up to £7500)
Is the installer just trying to cover himself if I do NOT confirm to Ofgem that "I'm Happy" with the installation? That part I guess I do control.
Sounds to me like a bit of rear-end covering tactics; should things go pear shaped for any reason, you are on the hook for the ‘Bus Ticket’ element. This may be a component in their standard contract terms, but if so, it suggests that they may not have sufficient confidence in their own workmanship! Are you otherwise happy with the installer? What is your gut feeling telling you? Regards, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
Posted by: @sussex-greenishHello! I today received my first quote from an installer who actually came to the house (two others so far were preliminary online-only guess-quotes). I was a little surprised to see one thing in the contract: it states that I have the pay the £7500 extra if the BUS grant does not go through.
Mine did that also, I wouldn't be surprised if its common/written into the MCS contract template.
You get about 3 emails from the BUS people either asking you to confirm the installer or confirming that the grant has been provisionally authorised, so in practice there is a reasonable degree of reassurance. In particular there is a point in the process (before the installation) where the installer has made the application for the grant and you have to confirm that you authorise the installer to access the grant on your behalf. Until this point I wouldn't regard it as secure, so no way would I let an installer go ahead until this point was reached.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
-
Issue with Samsung Cascade System
5 days ago
-
Air to air bus grant installer anywhere
2 weeks ago
-
New Vaillant Arotherm Plus 7kW (cooling enabled) + Jaga Briza cooling + Sunamp Thermino – costs, experiences & Sunamp choice (EnerPHit-level retrofit)
3 weeks ago
-
Surface mount or bury primaries for heat pump installation?
1 month ago
-
Design Of Cascade System Replacing Undersized ASHP
1 month ago
- 27 Forums
- 2,738 Topics
- 64.3 K Posts
- 497 Online
- 7,143 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Electricity price predictions
Interesting read from NESO on their Demand Flexibility ...
By Old_Scientist , 2 hours ago
-
RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 4 hours ago
-
RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 14 hours ago
-
RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 17 hours ago
-
RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 21 hours ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
One of the other mods has just reminded me that @ashp-b...
By Majordennisbloodnok , 23 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
My ideal install would have my battery installed before...
By BlizzardGreen , 2 days ago
-
RE: PV and battery long payback - sense check query
@old_scientist I have now drafted 2 replies - both have...
By DavidB , 3 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: adrian Manufacturer: Appliandirect.co....
By Adrian , 3 days ago
-
RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 4 days ago
-
RE: Digest of UK Energy Statistics
@jeff Yes my brother in Oz told me of that charge year...
By Jancold , 4 days ago





