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Union Auto Service
“When I went to the location he directed me in, the owner of union auto shop had called ahead and let them know what I needed and when I got there they were able to help me.”
Best Car Tune-Up in Union, NJ
24 technicians listed · 11 in Union · 22 open weekends · 16 rated 4.5+
Data verified October 16, 2026
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SK Auto Repair
- Fair
- Truck
- Mechanic
“I will entrust SK with my repairs and maintenance task as this was the second time I have used SK and both times I was pleasantly surprised for the second time with the workmanship and professionalism.”
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Alfredo's Tire & Auto Repair
“Fixed my A/C, with new condenser and refrigerant available immediately upon my walk-in, and done in a fraction of the time most other mechanics would need.”
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City Tires
“Great place to get service”
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Good Guys Auto Service & Repair LLC
- Sound
- Dealership
- BMW
“The best place to get your car fixed he was fast very knowledge in cars problems was in and out after I took my car to other places that they couldn't find out what was wrong but he did he fixed it in 20 minutes place very clean it was a great expe...”
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RJ One Auto Repair
“Recently I had to replace a window regulator and ordered a wrong part for them to install and they have been very accommodating and let me order a replacement to install without extra charges.”
Listed for drivers in and around Union, NJ, these 24 shops handle tune-up work and running faults. What each one says about diagnostics, warranties and service specials comes from its own website; ratings and quotes come from public reviews.
Area overview: Union, NJ
Of the 24 technicians we list here, 11 are in Union itself and 13 come from towns including Union City (10, 13 mi), Belleville (1, 9 mi) and Brooklyn, NY (1, 17 mi). The technicians on this page are rated from 4.0 to 5.0 across 1,681 reviews; 8 have 50 or more reviews and 16 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "fair" and "honest". 22 are open on Saturdays. 1 has a BBB rating of A or A+. 7 have ten or more years of experience, the longest 38 years. 1 is family- or locally-owned. We have a website on file for 4 of the technicians on this page; 1 publishes a contact page and 1 lists a public email. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Which shops listed for Union open on Saturdays or Sundays?
22 of the 24 shops here show Saturday or Sunday hours. Plugs and filters fit neatly into a Saturday. A chase for an intermittent misfire does not, since it can need the car overnight to catch the fault happening from cold.
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Randy's Tire Shop LLC
- Mechanic
- Check Engine Light
- Prices
“I recommend Randy's Auto service”
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One Way Auto
- Light
- Dealership
- Mechanic
“Now, after seeing how they work -- clear, straight-forward, professional and with integrity -- I brought my car in for an AC repair which turned out to be a bigger job than expected due to the car being 20 years old and scarcity of parts.”
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J & M Auto Tech
- Mechanic
- Vehicle
- Price
“Not only did they not install it since it wasn't needed once they had gotten into the repair, but they let me know when they easily could've charged me since I knew they ordered the part to begin with.”
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Stuyvesant Auto Repair
- Mechanic
- Prices
- Job
“He was very kind, knowledagble, and replaced the front brakes and rotors on my BMW X2 within an hour, even though I got there 30 minutes before closing and was planning on leaving my car there.”
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Frank Car Depot Auto Repair
- Honest
- Work
- Prices
“Frank cardepot is the only mechanic shop where customers are always super safe and satisfied, so if you have a problem with your car, come see Frankie, # .....”
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Carlos Auto Repair
“A Great mechanic shop friendly and professional, Carlos has been fixing and doing routine maintenance services for my rides over years, his services are courteous, prompt and very reasonably priced, hands down the best mechanic in county from experie...”
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Beracas Auto Repair and Tires LLC
“Excellent service, highly recommended💯 …”
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Union Auto Body Repair
- Price
“Great customer service and a knack for paying attention to the details.”
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RV Auto Repair
- Honest
- Mechanic
- Work
“Duli is very sincere about what the car needs and if he can't do it he lets you know from the beginning and he is not like others who for the money start saying that he knows how to do it.”
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Diego's Auto Repair
- Price
- Mechanic
“Great service, better of good price”
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T & J Tire Center
“Cesar a magnificent person and Juana phenomenal”
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Chavez Auto Center LLC
- Mechanic
“Honest mechanics.”
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Joe's Auto Repair
- Priced
- Mechanic
“Good professional”
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Junior Auto Repair
- Price
“Excellent service”
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Oscar Navarro Auto Repair
“Oscar was very attentive with answering all my questions that I had regarding a repair I needed for my car .”
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Claudio's Auto Repair
“Reliable and always explains exactly what i need done, with total breakdown on my bill.”
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Autocity
- Price
“Charged a lot but it was worth every penny brung my m6 broke down on me they replaced all belts and power steering pump speak to danny hes the owner and very understanding !”
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Josil Auto Repair
“Very good mechanic”
Why these companies made our list
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