AOS Energy Efficient Heating Systems Limited

AOS have installed the heat pump in a very efficient manner. The engineers were very pleasant and left no mess clearing up after every days work. They were always very polite and courteous.

From the moment that we got in contact with AOS Heating to supply and install a Heat Pump, Cylinder and associated equipment etc. via a referral from a neighbour we were impressed. A technical specialist in their team went out of his way to understand our current system (which was a little unusual) and designed a system to meet our needs. A comprehensive survey and report all added to our feeling that we were dealing with a professional company. Calls to the company to ask questions during the pre-sale process were swiftly routed through to the appropriate person and we were left with confidence that we had a well designed system. Once it came to the installation, again we were impressed with the quality of the Engineers who came to our property. The workmanship was excellent and all of our questions were answered as the installation progressed. The team were polite and tidy and the finished pipework and layout in our loft space was excellent. The handover was comprehensive and the documentation and videos explanatory. We would have no hesitation in recommending AOS Heating to prospective customers.

Have been a client of AOS for a long time and their service is always so very excellent - the whole team is a pleasure to deal with, I could not recommend them highly enough.....Simply The Best !

I contacted AOS in order to replace my old oil-fired boiler with an Mitsubishi Ecodan 8.5kW. As part of the work, I also asked to remove the old water tank in the loft, replace the water cylinder and re-pipe three rooms. The processes of evaluation and installation went smoothly and I was accurately informed about every step. AOS addressed all my questions with precision and without delays. The installation was completed in five days, including a full day for testing, and my property was left clean. The new system seems to work satisfactorily and I am very pleased with the results. I can certainly recommend AOS as an excellent company.

AOS have just installed a new boiler into my house. From the start they were very professional offering advice on the best solution and installation for me. The installation took two days and the engineers were very professional and very tidy.

What can I say about AOS! We started using them in 2013 when we moved to the area that they covered and haven’t looked back since. We recommend them to all of our friends and family! They are a wonderful company! Great work ethic, leave the areas they work in tidy at the end of the day. Explain everything they are doing. The admin team are outstanding! All staff are friendly and helpful! Thank you for everything that you do every single day!

We were in the process of buying an off-mains gas property that previously had an expensive direct electric boiler and central heating system. Before exchanging I was keen to ascertain if an Air Source Heat Pump solution would be viable at the property, how much it might end up costing, and the potential efficiency savings vs direct electric. I had come across AOS through both highly rated online reviews - and a friend's father-in-law who had also had an ASHP system fitted by AOS the previous year and also had very positive things to say about the company and their experience. From booking in an initial phone call with their technical surveyor Lee Wildego who took the time to answer all my initial questions in great detail - to the heat loss survey which led to a competitive quote - through to the installation team who were friendly to have around the house and super tidy in their work, alongside all the post-commissioning aftercare to ensure the ASHP was running efficiently - I found AOS excellent, honest and reliable to deal with throughout. Wouldn't hesitate to recommend AOS to anyone that's looking to see if an ASHP solution is viable for their home.

We were bowled over by the service provided by AOS when our boiler developed a fault. From the call made at 9.15 a.m. until the new clock was fitted to the boiler by Jack at 10.30 a.m. This is why we have remained a customer of AOS as the service is second to none. Much appreciated, Mr & Mrs Lucas

AOS have installed a Mitsubishi air source heat pump, hot water cylinder and upgraded a number of radiators. The process from initial contact to final commissioning was completely seamless. AOS managed the government grant application process on our behalf which made life very easy for us. A key element of the process was the initial heat loss survey; the survey and the resulting heat loss report were both thorough and comprehensive. AOS also present the heat loss report to the heat pump manufacturer for their approval too. This process really gave us confidence that we were dealing with a very experienced organisation and thus made for a very easy buying decision. All of the on-site and off site teams have been incredibly helpful, highly skilled and really friendly. We are very pleased with the quality of the installation, the timescales were accurate and the costs were on budget. I would highly recommend AOS to anyone thinking of heating system upgrades and installs.

Went with AOS for a heat pump install because the reviews are so good. It has been installed for almost a month now and all is working well. The process from start to finish was made very easy by AOS, right from when I first contacted them for advice and through the various visits and installation stages etc. I asked a lot of technical questions and their responses were always prompt, clear and helpful. Can’t fault them really!