You must also pass the industry approved bpec aptitude & selection test, which will be carried out by your employer. Whether it’s a boiler breakdown, leaking pipe, burst water cylinder or seized mains stopcock, we can despatch a gas engineer or emergency plumber within minutes to make your property warm and dry. You may be interested in these other posts. We had a combi okay, hot water whenever you require it, but if somebody turns a tap on when you're in the shower, heavens you know about it! Charlotte.