Diane Serio
Diane Serio at Criswell Chevrolet of Thurmont

Diane Serio

Finance Manager dserio@criswellauto.com

Criswell Chevrolet of Thurmont

111 Frederick Road
Thurmont, MD 21788

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2 Reviews

Finance Manager (240) 575-6108 dserio@criswellauto.com

not yet
rated

2 Reviews

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2 Reviews of Diane Serio

January 06, 2026

Dealership Rating
Employee Rating

RJ was responsive and initiated the call in reference to trading in my 2020 Gladiator. We were in the market for a New Wagoneer/Grand Cherokee/Durango as our 2014 Durango was out of warranty and although a More

by JEEPRMEDIC
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Ray Johns , Andrew Thomas

July 31, 2025

Dealership Rating
Employee Rating

I had a very enjoyable experience with the guys at the dealership. They understood that I was looking around and still saving money for a purchase and mark was incredibly patient and informative in answer More

by Steven.muskett
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Mike Boyce, Mark Blum

Aug 01, 2025

Criswell Chevrolet of Thurmont responded

Our goal is to provide a great sales event that meets your vehicle needs and your budget. We appreciate you taking the time to let us know you were pleased with the results and hope you'll reach out with any additional questions about your new vehicle.

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