Customer needed hot and cold stops as well as diswasher stop installed under the kitchen sink before remodel is complete. Also needed gas line reworked. Brought the new stop out low enough to be able to loop the new gas line once installed. Tested all work extensively to ensure proper function and no leaks. Mistakenly turned off another meter for that half of the complex when his pilot didn’t quickly go out when testing what was thought to be his meter. Called the gas company and determined the meter belonged to unit 3915. The occupant wasn’t home at the time of work to see. If we need to return and relight their water heater as a courtesy they know they can call the office to have me come out. Was unable to check pressure to unit due to water heater location. Prv is for whole building also.