How it works
Pick your product
Pick your plan
We install
Pick your product
Improved energy efficiency
A new boiler will be more efficient, this means it will cost you less to heat your home.
Peace of mind
Our boilers come with up to 12 years parts and labour guarantee, so you can relax and enjoy.
Spread the cost
Use our flexible payment options to spread the cost with little or no deposit.
Why choose us?
Quality products
All of our products come with a manufacturer-backed guarantee and are Which? Best-Buy rated.
Honest pricing
We provide fast and accurate quotations with no hidden fees or costs.
Care packages
We offer flexible and scalable packages to suit your needs.
Friendly & professional
Our engineers carry the correct qualifications for any work they carry out, they follow strict practice guidelines.
What our customers say
Everything went to plan
After getting a number of quotes for a new boiler, we chose Diamond Green Energy and I’m so pleased that we did.
Great installation and customer service
The team at Diamond have been great from start to finish. We’re so pleased with our air conditioning.
Really pleased with the end result
No pushy salesperson, just a genuine solar expert giving us all the facts and figures so that we could make an informed decision.
The cost savings are huge
The job was far from straightforward and Diamond exceeded our expectations with their technical knowledge.
Diamond were quick and professional
Diamond were quick and professional from the initial enquiry, right through to completing the install.
The service has been impeccable
I’ve been a WarmCare customer for nearly 8 years. The service has been impeccable.
Thanks all for great service
Diamond were great and only wanted us to get what we needed. Thanks all for great service.