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Jason Mertens
Jason Mertens
Sales & Leasing Consultant
Russ Darrow Mazda of Greenfield
3520 S 108th St
Greenfield, WI 53228
72 Reviews
I am a husband and father of six with one Grandson. My wife and I have been married for 25 years now, and we look forward to another 25 years! I love to play golf, read Anne Rice novels, and to engage in good conversations. I believe that customer satisfaction is the core foundation of any business. If the customer is taken care of above and beyond what is expected, then everything else will fall into place.
Read moreDealership Experience
9 yrs
Industry Experience
9 yrs
Specialties & Trainings
Dealer Rater Certified
Mazda Master Certified
Mazda Elite Certified
Certified in Friedman Professional Retail Selling
Mazda Certified
72 Reviews
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72 Reviews of Jason Mertens
August 04, 2026
Jason Merten was my salesman. Mr. Merten was very informative and helpful throughout the entire process. Provided advice throughout the process as well ensured I got anything I ne Mr. Merten was very informative and helpful throughout the entire process. Provided advice throughout the process as well ensured I got anything I needed before closing the sale. More
by benjaminbaxter77
August 04, 2026
Mr. Merten was very informative and helpful through the process. He answered all my questions and concerns in a manner that put me at ease with the transaction. process. He answered all my questions and concerns in a manner that put me at ease with the transaction. More
by benjaminbaxter77
Verified CustomerOther Employees Tagged: Jason Mertens
July 23, 2026
I liked that I was able to book an appointment the same day I called. I appreciated the video inspection and Michael going through the paperwork and answering all my follow up questions. day I called. I appreciated the video inspection and Michael going through the paperwork and answering all my follow up questions. More
by Kmy
Other Employees Tagged: Michael Schultz
June 24, 2026
Very good speed getting through the buying process. Communication was extended in a very. Timely fashion Communication was extended in a very. Timely fashion More
by WHITEOWL45
Other Employees Tagged: Cayden Czaplewski
May 03, 2026
Longstanding, ethical local business with well trained, knowledgeable employees who are courteous and willing to work hard to meet their customers needs. knowledgeable employees who are courteous and willing to work hard to meet their customers needs. More
by SUSAN3FROMM
Other Employees Tagged: Maxwell Munsell
February 10, 2026
Great team: Jason, his trainee, Dinovan and the polish finance lady were fantastic Welcoming building with nice amenities finance lady were fantastic Welcoming building with nice amenities More
by XAVPIL
Other Employees Tagged: Donavin Alsfelt , Jeanne Holtz
January 15, 2026
The dealership was clean and friendly. The dealership was welcoming and professional. Our sales person Tracey B was kind and went out of his way to educate us about our new car. The prices The dealership was welcoming and professional. Our sales person Tracey B was kind and went out of his way to educate us about our new car. The prices were very competitive with all of the other dealerships in a 50 mile radius. We were very happy with the customer based team oriented atmosphere. More
by EDCATHYS111
Other Employees Tagged: Gustavo Valenzuela, Tracy Baskin
January 03, 2026
After hitting a deer and totaling my Mazda CX-5 right before Christmas, I needed a new car and wanted the process to be as easy/quick as possible. There was no question that we would go back to Jason Mer before Christmas, I needed a new car and wanted the process to be as easy/quick as possible. There was no question that we would go back to Jason Mertens at Russ Darrow Greenfield! My husband, brother, and grandfather have all purchased cars from Jason and we have nothing but positive things to say about our experiences. Jason came in on his day off to help me purchase a car, which shows his dedication and how much he cares about his customers. He never once made it feel like we were inconveniencing him. When making such a big purchase, it’s really important to trust that you’re getting a fair deal. I never question that with Jason. The process was smooth sailing and he made sure I got the exact car I wanted. Jason is incredibly knowledgeable, easy to work with, and goes above and beyond for his customers. My family will keep buying Mazdas as long as Jason Mertens keeps selling them!! And, of course, because they are great, reliable cars! More
by brynnteaman
December 29, 2025
⭐⭐⭐⭐⭐ Adam and Jason were both amazing throughout my new car purchase. Jason even came in on his day off to make sure my car was delivered to me, which truly meant a lot and shows the level of care he has f car purchase. Jason even came in on his day off to make sure my car was delivered to me, which truly meant a lot and shows the level of care he has for his customers. Gus, the finance manager, was great as well he wasn’t pushy at all and made sure I got the best deal possible. Jason, I truly appreciate you coming in on your day off and providing such excellent service. Overall, an outstanding experience from start to finish. Highly recommend! More
by Samantha Flores
Other Employees Tagged: Adam O'Brien, Gustavo Valenzuela
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