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Abacus Energy Solutions Limited

Denbighshire

MCS Certified

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Technologies

Solar PV

Reviews

5.0(19 Google reviews)

What customers say on

5/5

Installation of an EBAC air source heat pump carried out before Christmas. Cost was the same (after the grant applied) as a new gas boiler. No hard sell, kept all the existing radiators (40 years old), which I will replace over next few years anyway. Odd teething issue, which Abacus sorted quickly. A very solid and tidy installation. House is same temperature all day every day, the only other consideration is thinking ahead to boost hot water for a bath as it takes all the hot water in the cylinder but a quick boost resolved that. Happy to recommend Abacus.

Martin Cooper16 Feb 2026
5/5

Abacus have now completed an Air source heat pump Installation for me. They installed a Nibe SMO S40. This was complex and was done to replace an existing electric heating system in a stone Barn conversion. It was integrated with the existing under floor heating and radiators system and it is operating exactly as they said it would. The installation engineers arrived on time with all the equipment and completed within the projected time. They were extremely knowledgeable and adaptable and didn’t leave until they were sure it was working perfectly. Abacus dealt with all the necessary paperwork and it all went exactly as planned and on time.

Ray Sabell4 Feb 2026
5/5

No nonsense approach from Michael. Whilst other companies tried to push sub-optimal kit first, then changing their quotes, Mike came over, understood my needs, asked pertinent questions and suggested a solution. And for a decent price. Frequent communication with the office during the process. A small issue with their roofers (external company) being messy but overall positive experience.

Filip Stepien21 Jan 2026
5/5

From start to finish the Abacus team were fantastic. We are thrilled with our solar panels and would definitely recommend Abacus to anyone. We are looking forward to benefiting from reduced bills from now on.

Val Owen6 Feb 2026
5/5

I’m really pleased with the standard of the work and I would certainly recommend Abacus. Michael came out initially and was very helpful with his advice. There was no salesman like pushiness. Before the engineers arrived I had an idea how I hoped the solar panels, battery, inverter, and gubbins need to be placed and the wires taken from outside to inside. Without any input from me, the ‘Lead’ Engineer suggested the best way to do this and it matched my idea totally. All was completed in one day, the workmanship was excellent, and any holes that had needed to be drilled for the wiring looked as if they were part of the original house build. Consequently when they left, other than a little dusting, there was little for me to do to tidy things. Post installation there have been no problems with the system and all I’ve done is watch the app to see the kWh the panels are generating. The only negative, but it would be unfair to remove a star for this, is the communications and updates regarding the wait for the installation were not forthcoming unless I rang up to ask.

Mark Wilson12 Jun 2024

What customers say on Trustpilot

1/5

A disorganised office?

I had a site survey booked in for 2 December through Ellis. No one turned up at the designated time and I contacted the office the same day, speaking to someone who sounded like a manager. They said they would get one of the sales guys to contact me that day. I'm still waiting...................☹️☹️☹️. Based on the other reviews I presume they do a decent job when they actually get to your house but the poor communication and missed appointment suggest a lack of organisation at their main office, which doesn't inspire confidence. Further to your reply: - I have a text message from Ellis dated Wednesday 20 November at 11.15am confirming the 2 December appointment. - I have a record of a phone call to your office on 2 December at 11.40 You will have access to this information so this should provide you with everything you need.

Undergardener16 Dec 2025
5/5

Why wouldn't you?

I had a meetings with a number of installers. They ranged from being just Salesmen, wanting to sell you their equipment and not being open to a discussion, through to knowledgable practical blokes, prepared to listen. The prices for similar solutions spanned over £6k difference. Do your research, pick your installer. I found Michael, Alex and the team at Abacus absolutely superb. Nothing was too much trouble, everything was explained and there was no pressure sales involved. They kept me informed every step of the way from the initial sales meeting through to the final sign off once the system had been installed. I have no hesitation in recommending the team at Abacus. Thank you!

Paul Harrison9 Dec 2025
5/5

Top marks

Abacus helped us out with both ASHP and Solar Panels. Michael was very good at explaining to us in layman's terms and didn't mind answering dozens of questions. Alex is on top of all the necessary paperwork and I felt comfortable at all times in the process. Would recommended without hesitation.

Matt21 Oct 2025
5/5

Look no further than Abacus energy solutions

After a lot of research I decided to appoint Abacus for Solar panels, heat pump, water cylinder and batteries. The installation for the heat pump happened in November on a very cold winters day, the install took 2 days and I was without heating for a couple of hours once the gas boiler was disconnected.The Air source heat pump quickly heated the house. Extremely courteous professional tradesmen who worked in the bitter cold. Once the heat pump had been installed the Solar panels were installed a few days later, this was a very quick process to put them on the roof once in place it was over to the electricians who installed the panels and batteries to the mains electric. Again extremely professional and with minimum disruption. Prior to install I switched my energy to octopus who have several energy tariffs for solar export and for heat pumps and electric car charging. I have had my Solar system with heat pump batteries and hot water cylinder for nearly 12 months and it is the best decision I have made. I have saved nearly £2000 on my energy bill and I have been paid nearly £400 for the export of the excess electricity. Abacus energy solutions managed my expectations brilliantly, they under promised and over delivered. In my opinion if you are looking for a company to install solar, heat pumps, water cylinders and batteries, look no further than Abacus

David Johnston22 Sep 2025
5/5

Abacus were the best and helped us when…

Abacus were the best and helped us when we needed it. We moved into a new house which had an old boiler and in the second week the boiler stopped working. We already had plans to have an air heat source pump fitted. I called Abacus and a few other companies and I felt from the beginning that Abacus were the best fit. Alex and Ellis where great at answering all questions. They offered open and honest advice over the phone which led me to book an appointment with Michael After the appointment with Michael, Abacus realised the urgency of our needs and helped rush through the installation. They helped with all the paperwork for the grants and updated us frequently about all aspects of the the order and installation. The installers that work for Abacus are amazing. They know exactly what they're doing how best to install the systems. Very friendly. Very tidy. You can tell when people are professionals and Abacus are true pros

Graham Hardcastle23 Apr 2025
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