Mainstreet Credit Union
Mainstreet Credit Union is a member-owned financial cooperative in Sarnia-Lambton offering personal, business, and agricultural banking services, including mortgages, loans, investment products, and GICs. The credit union provides student and youth banking, relationship-based financial advice through digital and in-branch channels, and limited-time savings and investment offers. Mainstreet emphasizes community engagement, member satisfaction, and local reinvestment through scholarships, donations, sponsorships, and event participation.
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Last updated on Apr 2nd, 2026
Recent Activity
Employee 5-year milestone announcement
Mainstreet Credit Union celebrates Travis for five years as their Director of Commercial and Agricultural Experience, highlighting his leadership with Commercial, Ag, and Business Account Managers and his hands on member work. He says the best part of his time is working with members, supporting his team, and joining community events to learn about the people they serve.
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Being an Executor of an Estate webinar
Doug Carroll from Aviso Wealth Inc. leads a free, 60 minute webinar on becoming and acting as an executor of an estate, hosted by Mainstreet Credit Union. The session is scheduled for September 10, 2026 at 12:00 PM, and registrants who cannot attend will be emailed a recording.
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Student budgeting tips and guide promotion
Mainstreet Credit Union published a Student Budgeting Guide on 2026-08-26 designed to bust common student budgeting myths and show how to budget without giving up social life. Read the guide at the provided link or book a meeting for personalized advice.
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Limited-time GIC rate offers
Mainstreet Credit Union is offering time limited GIC rates, including a 3.00% 1-year cashable GIC and a 3.65% 30-month GIC, with offers ending on August 31, 2026. Visit https://mainstreetcu.ca/gic to learn more or book a meeting to secure these rates while they are available.
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Student line of credit blog announcement
Mainstreet Credit Union published a blog on August 24 about student lines of credit, covering how they work, the benefits, and when to consider one. Read the post at the provided URL and connect with a Mainstreet advisor for personalized help planning tuition and living expenses.
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Personal mortgage services
Mainstreet Credit Union offers personal mortgage services in Southwestern Ontario, focusing on personalized advice and local decision making for buying, renewing, or switching a mortgage. Book a one on one meeting online to review options and next steps at https://mainstreetcu.ca/personal-mortgages.
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Student banking options
Mainstreet Credit Union is promoting student banking options to help students open accounts, build budgeting skills, and manage everyday spending this school year. Visit your local Mainstreet branch or go to https://mainstreetcu.ca/student-and-youth to learn more about available accounts and resources in Southwestern Ontario.
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Mainstreet balance transfer offer
Mainstreet Credit Union is offering a balance transfer promotion with 0% interest for nine months and a one time 3% transfer fee. Visit the linked offer page to review terms and begin a transfer to a Mainstreet Credit Card.
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Student financial tips social post
Mainstreet Credit Union shared quick financial tips for students heading to college or university this fall and invites readers to book a meeting at https://mainstreetcu.ca/. The social post emphasizes budgeting, building good habits early, and encourages students to share their own money tips using hashtags like #StudentBanking and #FinancialLiteracy.
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Move your mortgage cash back offer
Mainstreet Credit Union is offering up to $4,500 cash back for a limited time when you move your mortgage to them. Book an appointment with an advisor at https://mainstreetcu.ca/mortgage-offer to learn how the offer could apply to buying, moving, or refinancing your mortgage; terms and conditions apply.
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Promotional social post: Financial confidence
Mainstreet Credit Union shares a stylish prompt to boost financial confidence, encouraging intentional saving and investing while inviting followers to define their own money moves. The short social post uses friendly language and hashtags to start conversations about financial wellness.
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30-month GIC rate promotion
Mainstreet Credit Union is offering a 3.65 percent guaranteed rate on a 30 month GIC as a limited time rate offer that ends on August 31, 2026. Visit https://mainstreetcu.ca/gic to learn more or book a meeting to start saving.
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Student Scholarship Program
Mainstreet Credit Union is awarding three $1,000 scholarships to Mainstreet members aged 17 to 23 who will attend a Canadian post secondary institution in September 2026. Applications require a short essay on community involvement and an essay or video about healthy financial habits and are due August 14, 2026; apply online at the link provided.
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Employee 20-year milestone celebration
Mainstreet Credit Union celebrates Chelsey for 20 years of service, noting her journey from Greeter to Executive Assistant to the CEO and now to Member Experience Support on the Operations team. The announcement thanks her for two decades of dedication and highlights her role in creating positive experiences for members and colleagues.
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Credit card application sweepstakes
Apply for a Mainstreet Credit Union credit card for a chance to win a trip to Canada’s East Coast valued at $14,000, per the published sweepstakes. Follow the provided link to view the offer and the terms and conditions before applying.
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1-Year Cashable GIC and 30-Month GIC offers
Mainstreet Credit Union is running a limited time GIC promotion offering a 1-Year Cashable GIC at 3.00% and a 30-Month GIC at 3.65%, with the offers available through August 31, 2026. Visit mainstreetcu.ca/gic to book an appointment with a Mainstreet Advisor and compare which option best suits your savings goals.
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Graduation financial planning support
Mainstreet Credit Union is offering graduation financial planning support to help new graduates build budgets, savings strategies, and next step plans. Visit their blog at mainstreetcu.ca/blog to learn more and to book a meeting with a planner tailored to students and recent graduates.
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Playful social post
Mainstreet Credit Union published a playful social post on 2026-08-03 that reads "What can we say? Guilty as charged!🤭". The short, cheeky caption showcases a friendly brand voice and is primed for engagement on social channels.
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Holiday Closure Notice
Mainstreet Credit Union will close all branches and staffed services for the Civic Holiday on Monday, August 3, 2026, and will reopen on Tuesday. The brief notice encourages members to plan transactions around the closure and points to the credit union’s social tags for updates.
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Mainstreet community appearances in August
Mainstreet Credit Union will be visiting several community events in August 2026, including Big Brothers Big Sisters of Sarnia Lambton, Parkhill Fair, Bayfield Fair and CK Pride. Drop by their table to chat with staff, ask questions, or pick up swag during these local appearances.
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The Big Squeeze fundraiser
Mainstreet Credit Union hosts The Big Squeeze fundraiser on August 5, 2026, inviting the community to grab a friend and stop by for lemonade to support local kids. The one day event emphasizes togetherness and community support, with hashtags to help spread the word.
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Nearly 75 Years of Member Financial Service
Mainstreet Credit Union marks nearly 75 years of helping members with personalized financial guidance, from first home purchases to retirement planning. The celebratory post highlights everyday banking support and invites members to share in the many stories built over those decades.
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Family movie night: Zootopia 2
Mainstreet and Captain Kidd Days host a family movie night at Corunna Athletic Park with Zootopia 2 on 2026-08-01 at dusk, plus a Zoo2You live animal experience for kids before the film. Bring a blanket and friends for an evening of community fun under the stars.
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1-year Cashable GIC
Mainstreet Credit Union is promoting a 1-year Cashable GIC at a 3.00% rate with the flexibility to access funds before maturity. This limited time rate offer ends August 31, 2026, and you can learn more or book a meeting at https://mainstreetcu.ca/gic.
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Home insurance savings (add auto, save up to 55%)
Mainstreet Credit Union members are offered exclusive home insurance rates through partner CUMIS, with savings of up to 55% when you add an auto policy. Visit the insurer quote page at insurelinkdirect.com/en/HA/Pages/HomeAutoQuote.aspx to get started and see member pricing.
