AOS Heating | Heating Installers Hertfordshire | Boiler Installs Hertfordshire

I've just moved out of the area so regrettably won't be able to use AOS any longer We had a monthly pay maintenance contract with them for 15 years. Our old house although new appeared to have inherited a rather flaky boiler that needed 3 PCB replacements within the first 2 years All done by AOS with no extra charge and by pleasant helpful engineers The boiler received a regular annual service and curiously seemed to improve with age I left the house with it working perfectly
AOS are a first rate company offering a good old fashioned genuine service with a smile.

Zoe Matthews, Hertfordshire

We had a new boiler and radiators fitted. The engineers were polite, efficient and professional from start to finish. The girls in the office were also really helpful. Ten out of ten service, will continue to use them.

Keely Blake, Essex

We have been customers of AOS Heating Systems for over 17 years - they installed our Worcester Bosch boiler in 2000. Because of adaptations to our home we needed to move the boiler to a new position and decided, at the same time, to purchase a new boiler. The work was carried out satisfactorily and everything explained. They worked almost an 11 hour day. After dealing with this company for such a long time we had no hesitation in calling them in to fit our new boiler.

Norman, Cheshunt

I have used A O S many times in all of my properties and have always been happy with the service they provide; from the person answering the phone to the engineer who comes out, they are polite, professional, clean/tidy, reasonably priced and I've always been happy with the service they provide. I have recommended A O S numerous times to friends, family and business associates and each of them have contacted me to say how happy they were! An 5* service each and every time.

Tim, Cheshunt

AOS installed a new boiler in my property. The two installers were punctual, polite, tidy and efficient. Their work combined with the excellent admin support from the office showed the professionalism of both the installers and the company.

Christopher, Hertfordshire

We just wanted to say a big thankyou for doing a brilliant job. Everything seems to be working well, and we are lovely and warm. Can you pass on our thanks to Sam, Sam and Tom. They were such a hard workers and left the house clean and tidy.

Victoria, Hertfordshire

A.O.S fitted a new central heating system i.e. boiler, radiators and thermostatic valves. They were punctual, hard working and very efficient. I would certainly recommend their workmanship

Judith, Hertfordshire

Another great repair, protection to floor, disposing of all rubbish, punctual everyday. Polite, knowledgeable and carried out work to a high standard of workmanship.

Johnny, London

AOS fitted a new boiler for us. The engineer arrived on time, and did a very professional job. We would recommend.

Simon, Hertfordshire

Excellent work, prompt, arrived on time each of the three day project. Efficient and knowledgeable workforce, explained the system very helpfully. I would recommend this company.

Annette, Hertfordshire

Good time, keeping, polite, tells you want he is doing, a very nice man. Have recommended him to lady in Park Hill, Ingrid. Clean and tidy.

Janice, Essex

Abbey and Lee installed air source heat pump and radiators and thermostatic valves and new how water cylinder and immersion heater in our home. They were punctual and efficient

David, Milton Kenynes

The engineers worked extremely hard and did a very good job on the complex installation of our air source heat pump. They were without exception polite, considerate and a pleasure to have working here. All the AOS representatives we came across, on site or otherwise, were helpful and responsive. On the basis of this experience I would recommend AOS without hesitation.

Bobby Gittins, Bedfordshire

AOS have completed a boiler replacement and were a pleasure to deal with. Their operatives are polite, courteous, knowledgeable and on-time. I would highly recommend.

Darren, Hertfordshire

Know what they were doing, worked efficiently with no time wasting, Polite & professional

Caroline, Hertfordshire

The engineers were on time and very professional. Didn't stop until lunchtime, would not even have a cup of tea. Very clean and efficient, did a brilliant job at bricking up the old flue hole in the brick wall. They are coming back to do some more work for us, we were impressed.

Beverley, Hertfordshire