Assert Heating Services

Assert Heating Services was founded in 2003 and have been bringing innovative, specialised heating services to London ever since. We are established partners and approved installers of a number of boiler manufacturers including Worcester Bosch and Vaillant. Our customers know that we are committed to our quality of service and aim to deliver an impeccable heating solution to your home or business in and around London.

We provide thorough 12 point checks on your Valliant Boiler, carried out by an expert gas safe engineer. Our Valliant boiler service in London will ensure that your Valliant boiler is working safely and efficiently. Future issues can also be spotted earlier, reducing the chances of a replacement being required.