James S. Sullivan Insurance

Williamson, NY · Auto insurance agency

Rating
4.9/5
★★★★★ 4.9
Reviews
20
Rank in Williamson
#1
of 4 insurance agents
City Percentile
33%
rating percentile
Address
James S. Sullivan Insurance, 3800 Railroad Ave, Williamson, NY 14589
Phone
(315) 594-7133
Website
www.insureone.com/locations/williamson-insurance/?utm_medium=directory&utm_source=google&utm_campaign=SWIL_Williamson_NY
Status
Closed · Opens 9 AM Mon

James S. Sullivan Insurance is an insurance agent located in Williamson, NY. It is one of 4 insurance agents listed in Williamson. Its 4.9-star rating matches the Williamson city average of 4.9 stars. Based on combined rating and review volume, it currently ranks first among insurance agents in Williamson. There are 10 photos associated with this location.

About James S. Sullivan Insurance

InsureOne Insurance company provides insurance solutions at competitive rates in Williamson, New York. Get affordable New York car insurance, New York homeowners insurance and New York life insurance. We specialize in business insurance and provide... More

Hours

Friday9 AM–5 PM

Customer Reviews

★★★★★ 5.0 Bristol Utter · Nov 2025

Laura is and has been the most helpful and kind person throughout all of our insurance needs! She’s helped each family member with multiple things throughout the years with the utmost professionalism and down to earth kindness. You’ll never have an email or a phone call without some laughter involved. Highly highly recommend the James S. Sullivan Insurance Agency!!!

★★★★★ 5.0 Craig Fenn · Oct 2025

Karin is simply the best!!! Our previous insurance provider wanted to double our premiums when we added our teenage son to our auto policy. Karin worked to get us the same coverage elsewhere and saved us almost $2k per year. She's always professional, courteous, and easy to work with. Thanks again, Karin!!!

★★★★★ 5.0 Alexandra Winkler · Oct 2025

Karin Montgomery is very easy to work with. She is very fast and has worked on multiple policies for home and auto over the years. Can't recommend enough!

★★★★★ 5.0 Claudia Marshall · Aug 2025

One phone call to Karin Montgomery was all it took to get Homeowner's Insurance immediately. She was so helpful and professional. She was also so personable and a pleasure to work with! She is truly a great asset to your agency!

★★★★★ 5.0 Deidre Beach · Oct 2025

Karin Montgomery is the best agent! She is quick to respond to an email and provides information immediately. I highly recommend the Sullivan agency!

Accessibility & Amenities

✓ Wheelchair Accessible Entrance ✓ Wheelchair Accessible Parking Lot ✓ Wheelchair Accessible Restroom ✓ Wheelchair Accessible Seating

Services

Auto insurance agencyHome insurance agencyInsurance agencyInsurance brokerMotorcycle insurance agencyRenter's insurance agency

Top Insurance Agents in Williamson

NameRatingReviews
Ashley Insurance★★★★★ 4.85 reviews
Farm Family Mortimer Branch★★★★★ 5.01 reviews
Farm Family Casualty Insurance Co - Carter-Gray Agency Inc.★★★★★ 5.01 reviews

This listing is informational. Contact the business directly to verify credentials, services, and availability.