AOS Heating | Heating Installers Hertfordshire | Boiler Installs 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

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

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…

Zoe Matthews, 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