We serve residential homes, businesses and property owners in west michigan and provide:â. We service all of your residential plumbing needs! Choose us to provide safe and reliable boiler repair for your chicagoland home you’ll find that bishop employees exceed expectations during any plumbing or hvac project. Hire London boiler repair services now! Sometimes the flue gases get so cool that the water vapour in the gas condenses out (hence the name), and even more energy is recovered from the condensing.