Daneshill house, danestrete, stevenage, herts sg1 1hn. Your neighbourhood boiler installation and repair services! That this is the same on all taps throughout the property and that there are no leaks. Looking for a discount on your next plumbing service call? sign up for our mailing list and we’ll send you a $10, $20, and $50 coupon that you can use during your next waterwork visit. Electric hot water boilers and electric.