AOS Energy Efficient Heating Systems Limited

We have found the whole process with AOS of installation from survey, to quote, to installation to after sales to have been of an excellent standard. Every point of contact every time has done what they have said they would do without fail. Every point of contact has been knowledgeable, polite, efficient and has taken ownership of any issues and dealt with them efficiently. We feel the installation has been executed to an extremely high standard of workmanship and that we are in safe, reliable hands going forward. We have a warmer, "greener" house and are more than satisfied with our choice of supplier who has got us to where we are today.

We contacted AOS, explained our problem - no hot water or heating - boiler just not working. The arranged a date for someone to look at the problem. Person turned up on time, we explained the problem. A thorough inspection was made and the result explained to us with the options available. We chose a replacement boiler and because I am 80 and disabled, got priority treatment in setting a date. On the day, two people turned up and the job duly completed. various ancillary probes found and explained with solutions suggested. The whole experience was excellent and we will almost certainly sign up for a maintenance contract.

AOS replaced our LPG boiler with an Air Source Heat Pump and we were very impressed with the service we received. The engineers were punctual, polite and worked hard. The office staff were extremely helpful with all the paperwork needed both before and after the installation. We would have no hesitation in using them again. Louise Hanzi

A O S Heating I found to be a totally efficient firm, professional, and up to speed with latest products and regs. Friendly, helpful, a joy to deal with

I have recently employed AOS to install an Air Source Heat Pump System in my house to replace the oil fired boiler. The installation team were excellent, turned up on time, completed on schedule and even cleaned up after themselves. When there was a small problem it was resolved quickly with no extra cost. The extra mile was also gone in terms of putting our airing cupboard back together after the new boiler was installed and doing a neat repair on the wall in the breakfast room. I would definitely recommend AOS.

Have been with AOS for over 10 years, all servicing on my old boiler has been carried out regularly and extremely efficiently. Due to the age of my existing boiler I asked AOS to supply and fit new one. Engineer arrived promptly and installed the boiler, cleared up any mess and took great trouble to explain all the new equipment to me. Everything was completed within a very short time. I would thoroughly recommend this company and applaud their efficiency.

AOS surveyed our property and installed an air source heat pump and iBoost. The work was carried out to the agreed schedule and budget. All employees communicated well with us and were very helpful. The installation team were thorough, industrious and considerate.

All aspects of installing the heat pump were excellent: communications with the office staff were clear, informative and comprehensive; the installers were efficient and polite, and everything went to plan. Very pleased with the heating system.

We had a Heat Pump and new cylinder fitted. Staff were great, professional and efficient. We were pleased with the communication before, during and after. The job was completed a day earlier than expected and to the agreed budget. We would highly recommend.

Been with AOS since 2007, boiler servicing, advice and care always good - nearly always send the same guys so seem like a good company. Jack a regular for this and always polite and helpful. This time my immersion sprung a leak. Jack diagnosed the problem and within days this had been organised by the admin team, quoted for, sorted and repaired. Neat and immaculately tidy - even knowledgeably replaced the flooring under the boiler as part of the price so as not to delay work. Asked me to review and if happy at every step - couldn’t be better. Reece is a new member and will clearly be an asset. Both he and his colleague (sorry he did introduce himself but I can’t remember!) worked through lunch from early morning and stayed until late to get everything just perfect. Next day a minor problem was rectified by a future engineer who had liaised with the fitters and solved it promptly, asking if I was happy with all before getting me to check. All in all a really good experience. One minor issue - received an invoice, then 3 follow up calls to pay within 48 hours. When you have had one working day disrupted by work then kind of hassled this seemed a bit ‘off’. In the end I paid within 4 days but it was irritating. Although the bill was ok to be fair for the excellent job done. All in all thanks AOS - recommend!