Came out for a no heat. Found that the gas company had shut off the gas meter but due to the inlet being broken it was not locked. Found no sediment trap on the system and flu pipe is in very rough shape with lots of tape on it. Recommend adding sediment trap and replacing flue pipe to ensure a good connections and no leaks. Once repairs were completed, went to the gas meter turned it on inspected gas lines for leaks with leak bubbles. All connections are good and tight. No leaks. Did not turn furnace on as gas company would need to inspect the meter and everything else to ensure that it is safe.Shut gas meter back off as it was when we arrived. Customer stated she will have us back out once she gets gas on the house