AOS Heating | Heating Installers Hertfordshire | Boiler Installs 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

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,…

Beverley, 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

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

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