How hard water can affect my heating system?
Soft water has a low content of calcium carbonate, magnesium, and other minerals. Hard water contains a high amount of…
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- Step 1 - Arrange your free no obligation installation survey
- Step 2 - Arrange an installation date for AOS to carry out the install
- Step 3 - Sit back and relax with peace of mind
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*10 Year manufacturer's Guarantee subject to manufactures filter being installed.
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Customer Reviews
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…
Tim, Cheshunt
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
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
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
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…
Norman, Cheshunt
What are Heat Pumps?
What are Heat Pumps?
An air source heat pump extracts heat from the outside air in the same way that a fridge extracts heat…
The difference between hard and soft water
We all use the terms "hard" and "soft" to describe the water that comes out of our taps, but the…