A Newbury-based plumbing and heating business is doing its bit for the elderly and vulnerable this winter. Mike Longsmith of 777 Plumber is offering them free emergency call outs and repairs. For the past year, Mr Longsmith and his team have been offering services for free to those in need. What started off as kind gestures for those who looked to be struggling quickly became something the business openly offered as a way to give back to the community. “The word started spreading and it got quite popular,” said Mr Longsmith, a father of six. “We just wanted to put it out there, that we are sti…