Gas leak repair. Nicor shut off the gas to the house because of a gas leak. They could not determine where it was coming from. They could smell it at the back kitchen patio door and said it was most likely coming from underneath the floor, in the basement ceiling is the best they could narrow it down. Checked every accessible gas joint inside and outside of the house. Cut holes in the ceiling of the basement and found no leaks in the basement that I could smell with a gas sniffer. Did found a leak on the supply line to the gas dryer on the first floor and fixed it. Found a leak on a 1/2” gas nipple going into the water heater gas valve and fixed it. I did find that the gas range in the kitchen is leaking at the burners when the gas handle is shut off, and it was detected within 8 ‘ of where the original gas smell was detected. She is calling the appliance company to fix the issue. The customer wants us to come back and do a gas piping pressure test to make sure no leaks.