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ZACH COSTELLO

Overview Reviews (5)

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ZACH COSTELLO

SALES CONSULTANT

Mazzei Chevrolet

631 Orange Drive
Vacaville, CA 95687

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5.0

5 Reviews

Overview Reviews (5)

5.0

5 Reviews

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This rating includes all reviews, with more weight given to recent reviews.

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5 Reviews of ZACH COSTELLO

September 17, 2026

Dealership Rating

Employee Rating

Always takes care of my vehicle's needs. The customer service is great and they treat you like family. The customer service is great and they treat you like family. More

by mserika1983

Verified Customer

Service Price Transparency

Workmanship

Service Time

Service Communication

Recommend Dealer

Yes

Other Employees Tagged: Corey Hummel, Jonathan Krueger , Mark in Service

Sep 17, 2026 -

Mazzei Chevrolet responded

We’re glad our service team consistently looks after your Hyundai Sonata’s needs. Knowing you feel like part of our family means a lot to our team.

September 14, 2026

Dealership Rating

Employee Rating

Excellent and easy transaction. I love my new truck! Thank you to the whole Mazzei team. I love my new truck! Thank you to the whole Mazzei team. More

by s.sanchez03

Verified Customer

Service Price Transparency

Workmanship

Service Time

Service Communication

Recommend Dealer

Yes

Other Employees Tagged: Russell

Sep 14, 2026 -

Mazzei Chevrolet responded

We’re glad the service process felt seamless for you. Your kind words about our work on your Chevrolet Silverado 1500 mean a lot to our team.

August 24, 2026

Dealership Rating

Employee Rating

Zach at Mazzei is the best salesperson you will meet your needs are first before his pay needs are first before his pay More

by chbreed707

Verified Customer

Recommend Dealer

Yes

Other Employees Tagged: Numan Ilayan, Ryan Banuelos

Aug 24, 2026 -

Mazzei Chevrolet responded

Hearing that Zach put your needs first means a lot to our service department. Thank you for your five-star rating.

August 21, 2026

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Employee Rating

Service and understanding that the customer was excellent only complaint. I have I like to receive new windshield wipers. only complaint. I have I like to receive new windshield wipers. More

by VILDABARTEK

Verified Customer

Sales Price Transparency

Trade-in Experience

Purchase Time

Finance Experience

Recommend Dealer

Yes

Other Employees Tagged: Russell Self, Ryan Banuelos, BRISON WARDLE, ADAM KANE, RON KAELL, TIM Haley, Jonathan Krueger , Dakota Dummert

Aug 21, 2026 -

Mazzei Chevrolet responded

Knowing you felt our service on your Chevrolet Silverado EV was attentive and understanding means a lot to us. Our service department would be happy to install new windshield wipers whenever you’d like to come by.

June 30, 2026

Dealership Rating

Employee Rating

I had a great experience buying my 2022 Chevrolet Trailblazer. Jessica was amazing from start to finish. She was friendly, patient, honest, and took the time to answer all of my questions without mak Trailblazer. Jessica was amazing from start to finish. She was friendly, patient, honest, and took the time to answer all of my questions without making me feel pressured. Buying a car can be stressful, but Jessica made the whole process smooth and easy. She genuinely cared about helping me find the right vehicle and made sure I understood everything before I signed. I love my Trailblazer, and I’m thankful for the excellent customer service I received. If you’re looking for a new or used vehicle, I highly recommend asking for Jessica. She made this one of the best car-buying experiences I’ve had. Thank you again! More

by rivjourney

Verified Customer

Sales Price Transparency

Trade-in Experience

Purchase Time

Finance Experience

Recommend Dealer

Yes

Other Employees Tagged: Stephen Reyes, Russell Self, BRISON WARDLE, ADAM KANE, RON KAELL, TIM Haley, SAUL SANTAMARIA , Dakota Dummert, JASMINE LEE

Jun 30, 2026 -

Mazzei Chevrolet responded

We’re delighted to hear that buying your 2022 Chevrolet Trailblazer was smooth and stress-free. It’s rewarding to know our associate guided you with honesty and patience from start to finish. Thank you for recommending us and enjoy every adventure in your Trailblazer.