Charlotte makes the booking process very easy. I love that you get a message the night before giving a 4 hour slot for the engineer visit and then on the day of the visit you get a message when the... See more
Company replied
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Review summary
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Reviews shaping this summary
We had our boiler moved as part of a loft conversion and Steve and Tom were both brilliant. They genuinely went above and beyond, were really professional throughout, and made the whole process easy a... See more
Company replied
Good service. Company kept in touch about timing. Clean tidy engineer who not only serviced our boiler bought from Diamond but service our gas fire thoroughly too. Excellent service, 9 years we have b... See more
Company replied
Diamond Green Energy installed 18 solar panels, inverter and battery storage. The work was more demanding on an old house. All members of the team were good to have onsite. They were quick to resolve... See more
Company details
- #10 of 45 best companies in Gas installation service
- #4 of 23 best companies in Air Conditioning Contractor
- #8 of 60 best companies in Gas engineer
- #13 of 74 best companies in Central Heating Service
- #13 of 118 best companies in Heating service
- #2 of 52 best companies in Solar Energy Company
Written by the company
We are a family run renewable energy company based in Fareham, Hampshire. Our approach has always been to provide an honest, trusted and reliable service to our clients and this has supported our business growth over the last 16 years. At Diamond Green Energy we ensure that all of our engineers are kept up to date with all the latest training offered by manufacturers, ensuring that our customers receive nothing but the best service. As a MCS registered company, we also offer you peace of mind. We strive to continually keep up to date with industry changes and new and innovative products that are entering the market so that we can offer our clients the best possible energy saving solutions. If you would like to discuss renewable energy solutions for your property or business
Contact info
Unit 4, Apex Centre, Speedfields Park, PO14 1TP, Fareham, United Kingdom
- 01329 234111
- info@diamondgreen.energy
- diamond-gas.co.uk
4.9
Excellent
3k reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 100% of negative reviews
Typically replies within 2 weeks
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
polite
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy. Your business is appreciated.
Great service as always
Great service as always - reliable, friendly, polite and helpful.
Recommend!
1 May 2025
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy. Your business is appreciated.
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy. Your business is appreciated.
Rob your engineer was very polite and…
Rob your engineer was very polite and professional
and as always gave a thorough service.
17 April 2025
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy. Your business is appreciated.
Efficient, polite and professional
The visit was about 90 minutes and the man cleaned, checked and made sure everything was working as it should.
10 April 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Annual Boiler Service
Annual Boiler Service
Always good to have text with arrival time, Robert as always very polite and courteous. Job carried out in a professional manner.
4 April 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Good service
Good service. I had advanced notification of when the engineer would be visiting. He arrived on time was professional polite and the work was carried out well. Would recommend
1 April 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Very knowledgeable and helpful
Arrived at set time , good clean efficient job and very polite and informative
25 March 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Efficient and thorough service.
There was a query about the appointment time which was very quickly sorted. The engineer was polite, efficient, happy to explain everything and professional. He cleaned up as he went along.
Very satisfied customer.
14 March 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Engineer arrived on time with notice…
Engineer arrived on time with notice before, polite and efficient.
6 March 2025
Reply from Diamond Green Energy Ltd
Thank you for taking the time to review us, your business is appreciated.
the engineer was very polite and…
the engineer was very polite and helpful, explaining what he was doing. Left everything clean and tidy.
18 February 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
New ac unit fitted to bedroom
New ac unit fitted very quickly, service engineer was polite and very clean. He went over the new system operation. Whole installation was fitted professionally from the initial quote to fitting of unit.
5 March 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
The engineer was on time for the posted…
The engineer was on time for the posted boiler inspection, carried out the required work, was polite, and left the boiler compartment clean and tidy. The heating system is working as required and I am as ever impressed. Thank you
24 February 2025
Reply from Diamond Green Energy Ltd
Thank you so much for taking the time to review us. We appreciate your business.
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy, your business is appreciated.
An all-round 'DIAMOND' company
'Diamond'-covered for another year, thank goodness!
Staff in the office are always polite, patient and helpful and calls never feel rushed.
Today's engineer, like all others, was personable and knowledgeable and treated me with respect.
Minor mechanical issues during the year have been dealt with by phone; clear, easily understood instructions have given me confidence.
19 February 2025
Reply from Diamond Green Energy Ltd
Thank you for choosing Diamond Green Energy, your business is appreciated.
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