All of the engineers we work with to install boilers are gas safe registered the new boiler will need to be surveyed as part of your gas safety check every months and serviced when necessary. Got a tip, kitchen tour, or other story our readers should see? Great for any sewage situation. Clean blockages without damaging your pipes! Changing the type of boiler that you have could be more disruptive and take longer to install for example, it is much.