Diamond Green Energy
Fareham
Checkatrade member since October 200615
Services
- Air Source Heat Pump Installation - ASHP
- Ground Source Heat Pump Installation - GSHP
- Solar Photovoltaic / Electric
Customer Reviews
Write a review9.92 /10
Based on 13 reviews over the past 12 months
Quality of work
9.92
Reliability
9.92
Communication
9.92
What customers are saying
AI-generated from customer reviews over last 24 months
Customers consistently praise this trade for their professional, efficient, and tidy work, frequently highlighting the polite and knowledgeable engineers. However, a small number of reviews mention issues with communication and resolving problems.
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Reviews (739)
10 Very helpful
Posted 28 November 2025
Job location: PO15very helpful engineer who serviced our boiler but also fitted our new Tado thermostat controller. As Tado is quite new, there was a bit of learning from both of us of getting it set up but we got there - appreciate their patience!10 We would recommend Diamond Green Energy
Posted 18 July 2025
Job location: PO13We had 2 air conditioning units installed, not central heating, but air conditioning wasn't on the list I had to choose from. Good experience using Diamond Green Energy. Tradesmen were nice, arrived on time. Cleared up after themselves and explained how to use the units10 A/C Install
Posted 19 May 2025
Very happy with the quote and installation from Diamond Green Energy, went way faster than I assumed, very happy!Verified reviewerJob location: RG2510 Full check of a new gas system
Posted 20 April 2025
Steve was a great help ensuring we got the service we were looking for. Robert Nugent provided an excellent service, explaining what he was doing at every step, performing a thorough check of the boiler, cooker and central heating system which included bleeding all the radiators…no more clunking. Well done and thank you.Verified reviewerJob location: GU2710 New boiler installation
Posted 15 April 2025
We needed our very old boiler replaced with a new boiler and Hive system. They did an excellent job, especially as the original boiler was in an awkward position and they went out of their way to fit the new boiler close to the original. They were very knowledgeable, reliable, polite and hard-working. Very pleased with the work done. Great customer service - from going through the boiler survey and boiler options to the installation. Happy to recommend them.Verified reviewerJob location: GU5110 Annual Service
Posted 27 February 2025
The technician was punctual, informative and very politeVerified reviewerJob location: PO2
Photos
Company Info
Owner
Mr Ian Simm
Ltd Company
20 years on Checkatrade
VAT Registered
No
We are a family run renewable energy company based in 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
Our main services include:
- Solar Pv
- Battery Storage
- Ev chargers
- Airconditioning
- Air Source Heat Pump
- Ground Source Heat Pump
- Boilers
- Breakdowns
- And lots more
Finance options Available.
Very competitive rates - no call out fee - free no obligations quotes.
Accreditations and awards
This trade passed up to 12 Checkatrade vetting checks
Member since October 2006
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Identification
Proof of address
Financial
Qualifications and accreditations
County court judgement
Open source media
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Customer Reviews
Company trading history
Company duplication
County court judgement
Enhanced business check
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