Our engineers are highly skilled and qualified and also gas-safe registered. In fact, we are approved and accredited by some of the top manufacturing units such as Worcester-Bosh, Vaillant Ideal Glowworm Ravenheat, and Baxi regarding boiler installation. We have supplied and installed over 10000 boilers around different parts of London. Sign up today to get a free quote! Get your boiler serviced every year by an engineer who is gas safe registered, for your boiler to be eligible for the manufacturer’s guarantee. Arranging a service with MM Heating costs £85 along with which, you will get a free gas certificate.