Customer had gas leak that AGL came out for. They initially shut the gas off, but due to cold turned back on. Gave customer initial diagnostic price for finding any topical leaks. Found on leak on flared copper connection going to water heater by door of utility room on back of building. Tested all exposed joints in the utility room. No other leaks were found. Charged an initial fee of 215 for topical leak detection. Checked all joints exposed in the main floor utility room and one upstairs utility room. No additional leaks were found except the one on the soft copper line feeding the water heater. Deleted the diagnostic line for the 215 and charged the book price of $673.21. Applied customers 50 dollar coupon to the job. Checked all lines near repair after work was done to ensure no new leaks were formed. None were found. Made customer aware that no new smells were present. There is a 90 day warranty on the line we installed. But if a secondary leak presents itself at a later date, ad