Mainstreet Credit Union in Canada: Contacts & Services
Mainstreet Credit Union official information updated for 2026

HEADQUARTERS LOCATION:
1295 London Rd, Sarnia, ON N7S 1P6
MAIN OFFICE CONTACTS:
Hotline:
866-380-8008
Phone:
519-542-9059
Fax:
519-542-5301
BANK DETAILS:
Transit Number:
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Institution No:
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SWIFT:
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CATEGORY & INFO:
Category:Credit Union
Status:Regulated by OSFI
Email:
Official website:
https://www.mainstreetcu.ca/
Overview of Mainstreet Credit Union
Mainstreet Credit Union is a top-tier cooperative in Southwestern Ontario. Known for its "Real people. Real progress." motto, it recently launched a refreshed digital banking platform in March 2026. The credit union is a major regional lender for both agricultural and residential sectors.
Branch Status (2026)
The London Rd branch is currently under renovation. Staff and services have been temporarily relocated to the 412 Exmouth St location.
Customer Support
Support is available via phone, text, or live chat on Eastern Time (ET).
- Toll-free/Text: 1-866-380-8008
- Email: [email protected]