Helping to save the planet shouldn't cost the earth!
Finance can help spread the upfront cost into more manageable, affordable payments. Reduce your upfront payment for your solar panels, battery and heat pump to as little as £20.

That will depend on factors such as how much you borrow, and for how long.
The following examples are purely illustrative, but will give you some idea. All loans are subject to affordability checks.
Want to personalise costings for your home?
Find out in a matter of minutes how much it could cost to install tech like solar panels, batteries and heat pumps, what that might look like under a finance option, and how much you could save on your energy bill - free, and on a no obligation basis.
Get your free report
Complete a few, quick questions to generate your Thermly report. This will give you an estimate of the cost of your installation, and help you understand the impact of your choices on your home.
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Confirm your details
At this stage, if you’d like an even more accurate estimate, you’ll have the option to provide more detailed, specific information about your home via your Thermly account. Once you’re ready to move forward, we’ll just need to confirm your address and contact details.
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Compare installers
We'll connect you with up to x3 installers in your area who can supply your tech package. Each one will provide a free estimate of their costs, which you’ll receive in your account, presented in an easy to compare format. If you decide if you want to proceed, simply select the one that suits you best.
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Survey
Having selected your installer, book a free home survey. The survey generally takes a couple of hours and will allow the installer to provide you with a final quotation for your chosen package, alongside all the relevant documentation and calculations required by the Microgeneration Certification Scheme (MCS).
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Contract signing
Once any necessary finance arrangements are in place, contracts are signed in your account and you'll have a full record of what's happened and when. You still have a cooling off period of 2 weeks, but you can choose to waive this - entirely it's up to you.
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Pay your deposit
After the cooling off period the installer makes an application to the power network, and applications for any applicable grants are made, at which point your deposit becomes due. You pay the deposit to Thermly, then we arrange payment to your chosen installer to purchase the equipment and materials required for your installation.
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Book installation
You'll receive an email inviting you to book an installation date via your Thermly calendar. Installation can take up to 10 days (depending on the complexity) although typically it’s fewer.
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Completion & Aftercare
The installer will walk you through everything – how to use, manage and control your system. Once completed and your final balancing payments are made, you’ll be able to download all your warranty documentation. You’ll also get a reminder when any servicing is due.
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Get your free report
Your personalised cost estimate will enable a more meaningful illustration of a financing option.
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Compare installers
You receive one (or more) pre survey cost estimates from our installers and can take the first step to start an application for finance with our lending partner.
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Survey
You select your preferred installer, who will come out and do a full survey. That’s free with Thermly! You will receive a full and final post survey quotation. At that stage, if you’re interested in a financing option, you can choose to share details with our lending partner(s) in order to start your application for finance.
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Installation
If your application for finance is approved, we'll get in touch to invite you complete your Thermly journey. Next steps will be to pay your deposit and arrange dates for your green tech installation.
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Completion & Aftercare
We’re available all the way through your Thermly journey on phone, live chat or email (see Contact us for details). That includes afterwards, when we’ll be in touch to find out how everything went, how your installation is working out, and if there’s anywhere you think we might be able to do better.
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Get your free report
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Compare installers
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Survey
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Installation
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Completion & Aftercare
No, we’re not.
And there are a few things we absolutely have to make clear in that regard, namely:
Who’s the lender then?
We’re proud to be working with Lendology CIC, a B Corp certified social enterprise loan provider, with a dual commitment to meaningful social impact and responsible finance solutions.
Lendology has real experience and expertise in providing funding for renewable energy technologies such as solar panels, batteries and heat pumps. They work in partnership with local councils to offer tailored loan schemes based on where you live.
If you decide to apply for finance through Thermly, you’ll be taken to Lendology’s application process and assigned a dedicated Case Manager who will review your application and contact you in 2 working days. Lendology’s review of your application for finance will include assessing your application, running an affordability check, and conducting a credit search to confirm loan affordability.
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Want to know more about our role? Take a look at our Initial Disclosures Document (IDD).
At Thermly we believe it should be easier for people to make decisions that benefit their home, their community, and the planet.
We’re passionate about collaborative projects and initiatives that support this ambition, so we built the Thermly platform to do just that.
Our partners