AOS Energy Efficient Heating Systems Limited

AOS' sales explanation of what we would get and how it would work was clear and comprehensive. Their quotation covered exactly what we had asked for and offered a reasonable price. Their offered installation date was well within the timeframe they suggested initially. They arrived on time with all the correct materials (barring one radiator which was the wrong size, quickly corrected), and did a very competent installation job within the time they said it would take. They were polite, helpful and hard-working throughout, and made a good job of tidying up after themselves. So far the system works as expected. I would recommend AOS to anyone looking to convert to a heat pump.

Excellent service from first enquiry to post installation paperwork. Installation crew were superb - courteous, efficient, tidy and punctual. Questions were answered quickly and patiently and price was reasonable. All in all, a very positive experience so I can't ask for anything more!

Friendly, efficient staff in the office. Service staff arrived on time, did a careful and efficient boiler installation, removed old boiler and cleared up afterwards. Couldn't have asked for better service.

As a long standing customer of AOS, I am always surprised at the quality of the service they maintain. I would highly recommend their fast efficient service. Tony and Bradley installed our new boiler quickly, efficiently and went through all the instructions with us needed.

AOS have just completed ripping out our Ducted warm air heating system and installing a standard boiler/radiator system. They also removed the hot and cold tanks in the loft, and most rooms had to have the floors pulled up to run the pipes in. During the initial survey we were given the option of various different Boilers and radiators and explained the benefits of each. We did change our mind during the quote process a few times but this was dealt with helpfully and professionally by the office team. When the work started, I was expecting a really messy job given what needed doing, but every day they covered things up with dust sheets and hoovered up when they were done. Once the work was completed all the floors were made good and carpets re-laid in a very tidy manner. To look at the house now, you wouldn't know they had been here. The work was completed a day early and to the agreed price by a helpful polite and professional team.

I would like to compliment AOS on the manner in which they informed me at the quotation stage and the efficient way their team installed the heat pump immersion tank and radiators in time frame that they quoted.The system is up and running and the house is warmer than it has ever been. So thank you and keep up the good work AOS

From initial contact to end of work AOS have bee an ideal company to work with. Totally professional. Contracted work completed to schedule, full support from office staff and each and every person involved wth actual installation. I would confidently recommend the company.

An excellent job all round. A friendly, administrative approach to begin, with a visit (during lockdown) from an efficient surveyor to assess the project, quickly followed by a clear comprehensive quotation. After contract confirmation, helpful advice on the grant application, with the admin team keeping us up to date on all matters prior to the installation date. The team of plumbers/ engineers arrived on time on the expected date, (and on the following two days) and got on with the project in a well organised and efficient manner. At the end of each day, they packed away and cleaned up all areas before departure. At all times they were polite and careful of our home and kept us informed. Once the installation was complete, the team leader gave us a comprehensive guide to the system. Following settlement of the invoice, the office team have forwarded the relevant documentation and warranties. Unfortunately, the GreenHomes Grant office were not so efficient, the voucher arriving to late to be used, almost 4 months after application.

We were introduced to AOS Energy Efficient Heating Systems Limited by a previous satisfied customer of theirs. We needed to replace an oil-fired CH boiler which was over 40 years old and the idea of going fully electric was very attractive, especially with the Government's green incentives and the fact that with a heat pump you get out more than you put in. We made enquiries of several friends and neighbours who had used AOS to make similar conversions, and they were all enthusiastic. "Very clean and tidy", "extremely good plumbers" were typical comments. We found AOS's approach to be very open and honest about issues and possible problems; above all, they are specialists in this field and we felt confident that they knew what they were doing. The date for the start of the installation arrived, and AOS were there on time, began work with no delays and completed on schedule. So the comments we had received turned out to be no exaggeration. Since the system was commissioned we have had no problems and the house has been warm and comfortable despite recent cold weather, including hailstorms!

AOS Heating replaced our oil fired boiler with an air source heat pump. They also replaced the hot water tank and all the radiators. Prior to installation we were debating our choice of radiators and AOS Heating helped our decision making process by answering many questions we had and providing feedback on potential alternatives. The AOS Heating team that undertook the installation were punctual, courteous and completed the work when they said they would. As the work was undertaken during pandemic restrictions, the team were careful to adhere to social distancing and were very respectful of an elderly relative in the house and worked around him with minimal impact. Each day the installation team answered our questions patiently and did a clear handover when the installation was completed.