Union Gas Ltd Contact Information
Updated on
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From emergency contact to customer service, here you can find comprehensive contact information for Union Gas Ltd.

Customer Service
Customer Service Number |
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1-888-774-3111 Operating Hours: Monday - Friday, 8:00 a.m. to 6:00 p.m. (closed holidays) |
Emergencies
Emergency Number |
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1-877-969-0999 Available 24/7 |
You should call Union Gas on this number without delay if you:
- Smell gas or suspect a natural gas leak (e.g. you have a broken gas pipe or meter, you notice your natural gas equipment is overheating, you experience a fire that involves natural gas
- Suspect a carbon monoxide build-up
Bill Payment
Bill Payment and Inquiries Number | |
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1-888-774-3111 Operating Hours: Monday - Friday, 8:00 a.m. to 6:00 p.m. |
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Bill Payment Mailing Address | |
Union Gas Ltd PO Box 4001, STN A Toronto, ON M5W 0G2 |
Find out more about payment options for your Union Gas bill
Office Addresses
Head Office (Chatham): | |||
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50 Keil Drive North PO Box 2001 Chatham, Ontario, Canada N7M 5M1 Phone: (519) 352-3100 or (800)-265-5230 |
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District Offices | |||
Brantford: 348 Elgin St Brantford, ON N3S 7P6 Phone: call Customer Service at 1-888-774-3111 Fax: (519) 758-2389 |
Burlington 4475 Mainway Burlington ON L7L (905) 335-7348 |
Kingston 1653 Venture Drive Kingston, ON K7P 0E9 Phone: (613) 389-4000 or (800) 360-9203 |
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London 109 Commissioners Rd West London, ON N6J 1X7 Phone: (519) 667-4100 Fax: (519) 667-4111 |
North Bay Po Box 3040 Stn Main North Bay ON, P1B 8K7 Phone: call Customer Service at 1-888-774-3111 Fax: (705) 474-4717 |
Sarnia 50 Keil Drive North Chatham-Kent, ON N7L 1C5 Phone: call Customer Service at 1-888-774-3111 |
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Sault Ste. Marie 10 Industrial Court A Sault Ste. Marie, ON P6B 5W6 Phone: (705) 759-6339 Fax: (705)759-2950 |
Stoney Creek 918 South Service Road Stoney Creek, ON, L8E 5M4 Phone: (289) 649-2075 or call Customer Service at 1-888-774-3111 Fax: 905-548-3483 |
Sudbury 828 Falconbridge Road Sudbury, ON P3A 4S4 Phone: (705) 566-4301 Fax: (705) 525-5413 |
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Thunder Bay 1211 Amber Drive Thunder Bay ON, P7B 6M4 Phone: (807) 684-8818 Fax: (807) 684-8805 |
Timmins 615 Moneta Avenue Timmins, ON P4N 7X4 Phone: (705) 268-6141 Fax: (705) 268-7982 |
Waterloo 603 Kumpf Drive Waterloo, ON N2V 1K3 Phone: (519) 753-8611 Fax: (519) 885-7575 |
Windsor 650 Division Rd North Cottam, ON N0R 1B0 Phone: (519) 250-2200 |
Meter Readings
Meter Reading Number |
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1-888-774-3111 Automated Service available anytime. To submit a reading, press 3, then 3 again, then 1. You will need your 14 digit account number. |
Other Contacts
Call Before You Dig |
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1-800-400-2255 Available 24/7 |
New Gas Line & Sales Inquiries |
1-866-772-1045 Available Monday - Friday, 7:30 a.m. - 5:30 p.m. |