Today we had a worker knock on our door(not national grid) asked to take a look at the gas meters) when he leaves the gas is off and meters disconnected) not professionally done and no shutoffs where locked. With all the banging and drilling something could have fell and open the valve. The workers then finish there 8 hr day and go home. Leaving multiple homes with no gas and in a very dangerous situation with no locks on the shutoffs and the meters disconnected . I called national grid. They came out put a lock on the meter and left. I reported this to the dpw Bob knocks I believe his name was. His response was it's not his problem. After telling him in many ways that I believe it is his problem or at least the city of Malden problem for workers leaving a entire block in danger. ANYONE leaving gas in hope that a 20 year old shutoffs will hopefully holdup over the weekend and no kill someone. If they where leaving this like this it should have been locked and capped off. Then Bob knocks started saying he would help. He then called back to let me know he called national grid. I told him they came and did nothing and left . He said again it's not my problem. Its now been 11 hrs with a no gas. No answers no hot water no stove for tenants and a scary situation for the 8 people in our house and the kids playing on the street.