
Jason Mertens
Sales & Leasing Consultant
Russ Darrow Mazda of Greenfield
3520 S 108th St
Greenfield, WI 53228
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
7 yrs, 7 mos
Industry Experience
7 yrs, 7 mos
Specialties & Trainings
Dealer Rater Certified
Mazda Master Certified
Mazda Elite Certified
Certified in Friedman Professional Retail Selling
Mazda Certified
44 Reviews
Write a Review44 Reviews of Jason Mertens
March 09, 2025
Was attentive to everything we were looking for and needed in our new leased SUV needed in our new leased SUV More
Other Employees Tagged: AJ Becker, Darin Alsfelt, Ethan Bicha-Dale, Anthony Hernandez, Marquavis Maddox, Kelly Murray, Ramses Torres-Ramirez, Gustavo Valenzuela
February 11, 2025
Amazing, they made sure I was well taken care of . They got me in a new 2025 Mazda cx5 . I came in there for an appraisal. But I ended up walking out with a new car . Thank you so much ! They got me in a new 2025 Mazda cx5 . I came in there for an appraisal. But I ended up walking out with a new car . Thank you so much ! More
January 26, 2025
People were friendly and knowledgeable, however, the wait on site very long. Darin was called away too much. on site very long. Darin was called away too much. More
Other Employees Tagged: Adam O'Brien, Darin Alsfelt
July 28, 2023
Horrible! !!!! My daughter was there to buy her first car with money she'd received from her father passing away recently. After a test drive she wanted to make !!!! My daughter was there to buy her first car with money she'd received from her father passing away recently. After a test drive she wanted to make an offer on the car. After our salesman going back to talk to someone over and over we decided to pay sticker price including tax,title and fees. Well Garth and the man behind the curtain decided they WOULD NOT sell us the car!!!!!! Informed us they had other people looking at it that had either a trade in or were financing. Garth sweetly said it was ours if we wanted to "up" the offer!! I felt so sad for my daughter that she witnessed the gross display of greed at Russ Darrow. More
Other Employees Tagged: AJ Becker , William Awe, Arnoldo Diaz, Ivan Lawler, Nick Saidai, Nicholas Svec, Garth MIlls
February 24, 2023
I came in the dealership at about 6:45 in the evening. I had the most horrible year so far. Salesman Jason Merten's was wonderful above average kind patient and no pressure he was wonderful before close I had the most horrible year so far. Salesman Jason Merten's was wonderful above average kind patient and no pressure he was wonderful before close at 9 PM I was in my Vehicle and on my way home, they made it worry free, they made it a pleasant experience. Even though I have less than perfect credit I would rate this dealership a hundred and fifty stars if I could. And as far as Jason PERFECT there is no words for how much i appreciate him. Highly recommend Jason Mertens and Russ Darrow. Thank you!!! More
May 21, 2022
I came in for a test drive and was told with complete seriousness "don't crash it" by the salesperson. Funny how nobody has EVER said that to me when my husband was around. Completely sexist and inapprop seriousness "don't crash it" by the salesperson. Funny how nobody has EVER said that to me when my husband was around. Completely sexist and inappropriate. Also, they charge $3,000 in dealer fees on top of MSRP. I asked about the discount listed on the quote and the salesperson literally turned the minus into a plus sign saying that won't be offered to me. Jason also refused to negotiate. Complete rip off on top of being mistreated. Don't waste your time here. More
May 18, 2021
The Russ Darrow Mazda dealership felt welcoming and airy. Everyone working there had pleasant and friendly attitudes. It appeared clean and busy. We were approached by salesman Jason Mertens and with his pos Everyone working there had pleasant and friendly attitudes. It appeared clean and busy. We were approached by salesman Jason Mertens and with his positive, confident and friendly demeanor the new car adventure began. More
May 03, 2021
Russ Darrow Greenfield is always spotless, and organized. Everyone working is friendly and helpful any time I’ve been there for service. This visit was my first vehicle purchase from them, and the process Everyone working is friendly and helpful any time I’ve been there for service. This visit was my first vehicle purchase from them, and the process went super well and will definitely consider them for my next vehicle as well! More
Other Employees Tagged: Gus Valenzuela

