Mainstreet Credit Union
Mainstreet Credit Union is a member-owned financial cooperative in Sarnia-Lambton providing personal, business, and agricultural banking services, including chequing and savings accounts, mortgages, loans, GICs and investment accounts. The credit union offers relationship-based financial advice through branch and digital channels, a self-serve Open Anytime platform for remote account setup, and periodic promotions and limited-time rate offers. Mainstreet emphasizes community engagement through scholarships, bursaries, sponsorships and local events while focusing on member satisfaction and local decision making.
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Last updated on Apr 2nd, 2026
Recent Activity
International Credit Union Day celebration
Mainstreet Credit Union invites the public to celebrate International Credit Union Day on Thursday, October 15 with treats, refreshments, and in‑branch giveaways. Most branches host the main celebration from 10 AM to 2 PM, while reduced hours branches like Ailsa Craig and Port Lambton run from 10 AM to 12 PM. Enter via the link in the organization bio for a chance to win prizes including a $500 wealth booster pack.
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Small Business Month: Ontario & Local Small Business Statistics
Mainstreet Credit Union marks Small Business Month with Ontario level data showing 410,154 small employer businesses in 2024, representing 98 percent of all employer businesses. The post also highlights local community patterns, noting nearly half of Chatham-Kent firms employ 1 to 4 people and over 75 percent of Middlesex County firms have fewer than 10 employees.
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Branch closures for National Day for Truth and Reconciliation
Mainstreet Credit Union will close all staffed services and branch locations for the National Day for Truth and Reconciliation on Wednesday, September 30, 2026. The notice honors children who never returned home, Survivors of residential schools, and their families, and is shared with the hashtags #NDTR and #EveryChildMatters.
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Financial savings and budgeting blog
Mainstreet Credit Union published a practical blog on budgeting and paying yourself first to help you save for your next big purchase, with a link to read the full post and an option to book a meeting for personalized support. The post is focused on simple, actionable steps and includes hashtags #MainstreetCU and #FinancialTips for follow up.
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Credit card application sweepstakes
Mainstreet Credit Union is running a sweepstakes where applying for a credit card enters you to win an Atlantic Canada escape valued at $14,000. The promotion emphasizes quick action and links applicants to the online application with terms and conditions noted.
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CU Succeed Youth Bursary Recipients Announcement
Mainstreet Credit Union announced the CU Succeed Youth Bursary recipients for 2026, congratulating members Neveah and Zoey and noting the Ontario Credit Union Foundation as sponsor. The bursary provides financial support to young adults pursuing post secondary education and aims to make continuing education more accessible.
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Open Anytime self-serve platform
Mainstreet Credit Union's Open Anytime self serve platform lets new members join and begin applications for chequing, savings, GICs, and registered investment accounts at any hour. Learn more or start your application at https://mainstreetcu.ca/join.
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Credit Card Basics
Mainstreet Credit Union published a Credit Card Basics blog on 2026-09-23 that explains what credit cards are, how interest and minimum payments work, and how to build credit responsibly. Read the full post on their website for practical tips and next steps at https://mainstreetcu.ca/blog/how-credit-cards-work.
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Fraud prevention reminder
Mainstreet Credit Union reminds you to check messages, emails, and accounts before clicking, sharing, or sending to reduce fraud risk. The brief post points to a short set of practical tips and encourages following the credit union for more safety guidance.
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Financial planning reminder and call-to-action
Mainstreet Credit Union invites you to use the new season as a prompt to check your financial plan or begin one if you have not yet. Swipe through their short guide to learn why a plan matters and simple first steps to get started, with actionable tips shared under #FinancialWellness and #FinancialPlanning.
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Five-year milestone for President & CEO Chris
Mainstreet Credit Union congratulates President and CEO Chris on his five year milestone, thanking employees, leaders, directors, and members for their role in the organization’s progress. The announcement emphasizes shared achievements, resilience through challenges, and optimism about the future.
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Branch Holiday Closure
Mainstreet Credit Union will close all staffed services and branch locations for Labour Day on Monday, September 7, 2026, with branches reopening Tuesday. This brief notice helps members plan routine banking before the holiday, while online and mobile banking remain available.
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Corunna Street Festival
Corunna Street Festival returns as a community day of fun on September 19, 2026, with Mainstreet Credit Union on site inviting you to stop by. Expect a neighborhood festival atmosphere focused on local connection and casual family friendly activities; check Mainstreet channels for any schedule updates.
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Mainstreet x Sarnia Sting Junior VIP experience
Mainstreet Credit Union is offering a Mainstreet Youth VIP sweepstakes with the Sarnia Sting for the 2026 to 2027 season, featuring prime gameday seating for a junior fan and three guests, a swag bag with jersey and puck, a behind the scenes dressing room tour, and exclusive bench viewing. Enter through Mainstreet's website to register and see full rules and entry details.
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Mortgage advisory service announcement
Mainstreet Credit Union announced a friendly, lighthearted mortgage advisory message on September 1, 2026, highlighting support for first time buyers and those moving into forever homes. The post uses a playful social trend to emphasize that advisors make the mortgage process easy and comfortable while staying professional and supportive.
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Open Anytime self-serve platform
Mainstreet Credit Union's Open Anytime self serve platform lets you begin applications for chequing and savings accounts, GICs, and registered investment accounts whenever it suits you. The service emphasizes simple, secure remote account setup; visit https://mainstreetcu.ca/join to become a member and get started.
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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.
