All of our engineers are gas safe registered only gas safe registered engineers are allowed to do any work with gas, don’t put your safety at risk with a cowboy who has no regard for you or your home! With state-of-the-art technology, to find cracked pipes is simple! Excellent in all aspects punctual, clean and tidy and polite. What is the eco-mode setting on a boiler? is it cheaper than the normal function? I was able to schedule.