Tokyo Gas Company - (1) 0570-00-2211 if calling from a mobile phone (2) 03-5722-3111
Open weekdays 9am-7pm
Tokyo Electric Power Co., Inc - 03-3501-8111
Open weekdays 8:40am to 6:30 pm
Bureau of Waterworks - 03-5320-6326
Open weekdays 8:30am to 5:15 pm