Auto InsuranceTenant Insurance
Duncan & Marshall Insurance
Excellent
599 Wellington Street, Newmarket, ON M1G 6F8
Profile last updated: February 20, 2026
Est. 1982 2-5 team members
4.1
Welcome to Duncan & Marshall Insurance, your trusted insurance partner in Newmarket, Ontario. We are a full-service insurance brokerage that believes in putting our clients first. By working with a wide network of insurance companies, we're able to shop the market on your behalf and find competitive rates on auto, home, business, and specialty insurance products.
Our experienced team of licensed brokers understands that every client's needs are different. That's why we take a consultative approach, taking the time to understand your risks and recommending coverage that truly protects what matters most to you.
With over 44 years of experience in the insurance industry, we bring deep expertise and long-standing insurer relationships to every client interaction. Visit our office in Newmarket or give us a call to discover how an independent broker can make a difference in your insurance experience.
Contact Information
Location
599 Wellington Street
Newmarket, ON M1G 6F8
Location Map
599 Wellington Street, Newmarket, ON M1G 6F8
Get DirectionsInsurance Lines
Auto InsuranceHome InsuranceTenant InsuranceBusiness Insurance
Specialties
High-Risk DriversLandlord InsuranceCommercial AutoProfessional Liability
Business Hours
SundayClosed
Monday08:00 - 16:30
Tuesday08:00 - 16:30
Wednesday08:00 - 16:30
Thursday08:00 - 16:30
Friday08:00 - 16:30
SaturdayClosed
Languages
English
Photos
Reviews
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4.1
8 reviews
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Y
Yuki Girard
Dec 2025
Renewal was painless
Just went through my annual renewal with Duncan & Marshall Insurance. They proactively reviewed my home insurance and found me a better rate without me even asking.
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E
Emma Pelletier
Oct 2025
Great for home insurance
Bought our first home and Duncan & Marshall Insurance walked us through everything we needed for home insurance. They even bundled it with our auto policy for extra savings.
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K
Kevin Anderson
Sep 2025
Reliable broker
Been with Duncan & Marshall Insurance for a couple of years now. They handle our home and auto insurance well. Sometimes hard to reach during busy periods.
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M
Matthew Cote
Jul 2025
Helpful but slow
The broker at Duncan & Marshall Insurance was very helpful and knowledgeable about business insurance, but it took a few days to get our quotes back. End result was good though.
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D
David Robertson
Nov 2024
Responsive and caring
When my basement flooded, Duncan & Marshall Insurance was the first call I made. They walked me through the claims process and followed up regularly. A+ service.
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H
Harpreet Brown
Sep 2024
Highly recommend
Duncan & Marshall Insurance helped us compare home insurance quotes from multiple providers. We ended up saving over $400 a year. Very professional team.
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Marc-Andre Tremblay
Jul 2024
Trustworthy and reliable
I've trusted Duncan & Marshall Insurance with all my insurance needs for the past five years. They always review my policies at renewal to make sure I'm getting the best deal.
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P
Priya Stewart
Apr 2024
Family business feel
Duncan & Marshall Insurance has that family business feel that you don't get from big insurance companies. They genuinely care about finding you the right coverage.
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