AOS Energy Efficient Heating Systems Limited

Have used Anthony Owen since he was a one-man operation many years ago - he was the only engineer in our area authorised to deal with the sealed heating system in our new build house. We've since moved. This was just a service and put in a new valve that was jammed in a towel rail. Matt our engineer removed his shoes as he entered the house and did the boiler service. When checking the ventilation (ours is an old 1985 boiler) he pointed out the interior vent had a fly screen behind it which I wasn't aware of and this could get blocked with dirt. He unscrewed the cover and carefully cut out the fly screen with a Stanley knife. I was impressed - I'd rather have flies than carbon monoxide. Up to the bathroom and Matt managed to unjam the errant valve so no need for a new one. A very knowledgeable, pleasant and polite engineer. The following day I had a voice mail from Kerri in the office demanding (in the politest possible way) my bank details in order she could refund me the cost of the valve and labour I'd paid in advance. I can't imagine how you can get better service than that?

I have just had an issue with our air source heat pump resolved. As always, AOS have been superb to work with. I like the manner in which it approaches issues and the way this approach is followed up by staff. They are all highly competent and very professional. Communications are excellent and as a result I always know what is going on or proposed at each stage of the process. I can highly recommend AOS.

I left telephone message my boiler dead. Next morning AOS rang took all details, hour later engineer arrived confirming replacement needed due to boiler age. Office staff were extremely supportive due to me having health problems managed for replacement to be done within week. Tony the engineer arrived 8am,he explained all he would have to do and kept me informed of things. He was great, tidy, through clean worker and very pleasant, I felt comfortable with him in my home. When he left in evening I had hot water and heat. He returned following morning for approximately 1-2hours,with an apprentice for final checking, clearing, paperwork. He explained thoroughly things to young lad, I was very impressed and would have no hesitation in recommending.

We were very keen to reduce our contribution to climate change and so wanted to move off our oil boiler. AOS have installed air source heat pumps in a number of our neighbouring properties and came highly recommended. They made the whole process very easy and installed new radiators with minimal mess. The new heat pump is incredibly quiet (quieter than the old boiler system!) and our house is already up to temperature and feeling nice and warm. All paperwork also completed very promptly.

Absolutely delighted with the installation of our heat pump, works like magic! Thanks to everyone in the team, from the first surveys to the finished article a very professional and confidence building experience. I had a bit of a wobble when the oil line was cut off, hoping that a large bungalow on a very windy hill would be warm enough with this new arrangement. I remarked, when it was first turned on, "Oh, this radiator's hot!" Greater surprises came at bedtime when I sank into an up- to- the- neck hot bath, wonderful! The work of art now gracing the wall in our garage is fantastic, Ryan should be exhibiting in the Tate Modern. Everyone was easy to work with and kept us informed at all times. We couldn't be more pleased., Thank you to all at AOS.

AOS installed our heat pump, new water cylinder, many new radiators and controls in just 4 days. Everyone we met was very nice and it was easy to have them working in the house.

Stripping out an oil heating system and installing an Air Source system is a technically complex and physically difficult job. Amazingly, the AOS team achieved this, on a difficult site, in two days, creating a minimum of disruption and inconvenience to us. The administrative support was ever polite, helpful and responsive, keeping us well informed with clear explanations and paper work. AOS is an efficient company that works seamlessly as a team from placing an order to delivery. They removed completely the hassle usually involved with complex work of this sort, leaving a neat and tidy job without a single snag.