There are many things to think about when it comes to. If you’re certain that you’re going to have a go at tackling the problem yourself, make sure you’re wearing the appropriate protective clothing you’ll also want to get hold of set of. Journey plumbers with 5+ years of experience. Our plumbing technicians are ready to help! get in touch with us by calling the number or filling out the form below. The combination boiler, or combi, is very popular in small residences.