The good thing about most boilers these days is that they’re sold at around % efficiency give or take a couple of percentage points in fact, if you have a really old, inefficient boiler, a new one could save you up to £! Parts, when they go out, can give signals a foul odor or unusual noise can be a sign that there is a problem with the unit excessive water leaking out or the unit not heating the air to the desired temperature are an additional indicator that there is a problem with the boiler. We’ve been dealing with insurance claims for over a decade, and we’ve seen the damage even a small leak can cause it’s easy to see why leaks are among the top insurance claims when everything from water pipes to water heaters can go awry at any moment these situations can be very stressful, especially when you don’t know what to do first or whom to call let our experts take care of your plumbing headaches call us now for a free quote! We also offer quotes outside the anchorage area for a fee. We are committed to providing you with excellent plumbing service while protecting the health and welfare of your family and we certainly hope you will choose us to be your local plumber! when you google "plumber near me" think of pat's plumbing! Below you’ll find some typical vaillant boiler costs for their combi, system and heat only boilers.