You should have your boiler serviced once a year to make sure it’s working safely if it’s not running properly, your boiler could start to leak. Leak under your kitchen sink? leak through your ceiling? blocked toilet? Oh license# / ky license# m. Sign up now to stay updated on the latest news and offers! I would like to thank you for being everyday super-heroes, rescuing us from the prospect of our daughter coming home to a sub-zero recently.