AOS Energy Efficient Heating Systems Limited

We would not hesitate to recommend this Company. They were professional, competent and friendly from the initial survey to the completed job. They worked hard to finish the installation of an urgently needed new boiler just before Christmas. We were impressed by the efficient way they made good on any repairs that resulted from this work and we will be taking out their Service Cover and continue to use them.

Following a presentation by AOS, much research & early discussions, we had a survey & energy report. Then made the decision to commit to changing from oil to an air source pump. We have been very impressed at every stage of the process. The ‘no pressure ‘ sales, the efficiency and courtesy of the team, who made sure we were happy at each stage. We were particularly impressed with the way they worked with a potential apprentice, carefully explaining techniques/checking his work. The handover explanation was clearly done, with all questions answered. One week in and we are thrilled with our new heating system. Many thanks to all concerned.

Not having any mains gas in our village we decided it was time to replace our existing expensive storage radiators. Having attended an AOS presentation on Air Pumps we decided to get a survey and quote for a full system. We are totally satisfied with the outcome. The installation team were punctual, professional, personable and efficient. They always tidied up before leaving at the end of the day, we were never left without hot water and they complemented my wife on her home made "Short Bread". I recommend AOS for reliable and efficient service.

We have just replaced our LPG heating system with an air source heat pump, installed by AOS. We were very pleased with the way the work was carried out and appreciated the courtesy of everyone we dealt with. We were grateful for the lack of 'pressure' before we went ahead, and feel supported post-installation.

AOS provided my parent's Worcester Bosch boiler around 16 years ago and, with Winter 2018 approaching I considered it time to assess and replace if necessary. I asked AOS to provide a quote when servicing the existing boiler which they promptly did. The quote (for London) was extremely reasonable, and I recommended to my mother to proceed, despite always obtaining several quotes normally. The removal was more difficult due to the boiler being located in the loft, but AOS undertook the task on and within the time quoted, with no fuss or mess. New boiler works perfectly. My mother (now on her own), asked them back to explain operation again, which AOS happily did. As I live over 225 miles away any such undertaking is a concern, but the people from AOS provided a top class, professional service from start to finish, giving me considerable comfort throughout, great stuff.

We had AOS replace our existing oil-fired boiler central heating system with a new Ecodan air source heat pump as we wanted something more reliable and less costly to run. We had done a considerable amount of research into alternative heating systems and air source heat pumps were the best option for us. AOS were our choice of installer as we were impressed by the open and honest information we were given by them from the start as well as the lack of pressure selling which was refreshing. It took us some time to take the final decision and they were fine with that. The job was carried out with efficiency and courtesy and we felt that the installation team were taking care of our house during the work. There was a small accident where an item of furniture got knocked but AOS were very quick to apologise and rectify the situation. I would recommend them to anyone for similar work.

AOS is an outstanding company. We have been delighted not just with the ASHP installation itself but also the full support we have received both before and after the installation. Our project was particularly problematic because of obstructive neighbours but, throughout the process, AOS helped at every step. The installation itself was impeccably carried out - the team were great: courteous, efficient, friendly and highly skilled. AOS are highly professional but also provide a very personalised service. would not hesitate to use them again in the future.

We had an Air Source Heat pump installed by AOS. They provided us with excellent service and the work was done professionally and neatly. There were a couple of issues post installation, which were resolved quickly. We are very pleased with the service we were provided and would recommend AOS for Air Source Heat pump installation.

We used AOS to install a new Worcester Bosch boiler. Staff were very helpful throughout the process, the appointment was quickly arranged and the team who completed the work were tidy and completed the job in one day. Very friendly and I can thoroughly recommend. My neighbour is now using AOS for a new boiler also!