To receive an estimate, please contact us using the form below we'll get back to you as soon as possible. We work with residents and businesses throughout central ohio, including. Socially and environmentally responsible. To keep the warranty valid you will need to have your boiler serviced once a year we can do this for you at £84.50 per year fixed at this price for the 5 years the manufacturers will then cover the boiler for parts and labour should anything go wrong. The best way to.