Hello,I wish to highly commend both Bob and Bill for their expertise, diligence, skill and ... honesty.It was the end of the pandemic. Many of the previous Boulder mechanic businesses were reduced to fiscal rubble by the quarantine in Boulder. Including the shop where I had previously taken my vehicles. It had taken me 4 years of living in Boulder to find a competent, trusted mechanics shop. That was 2 years ago. They are now gone.I was in a jam. My Nissan Maxima SE stuck in a parking lot in Superior, CO.I picked up my car yesterday afternoon (6/23/21). Bob and Bill did excellent work with a fair, honest and firm estimate of P&L in advance of repairing my vehicle.These days? How can I put a price on ... Honesty ... at an auto-repair shop?How can I say ... Thank you ... to Bob and Bill?BTW, My name is Doug Keltz and I live in Boulder, CO. Please see FB to msg. me w/ any questions you might have.I began doing mechanics work on my own car in 1967.My vocation for my life is: Senior Electronics Design Engineer, with a dual-major in Feedback Systems Controls Theory.Bob and Bill are amongst the 3 most competent, honest, diligent, intelligent men I have had the privelege of meeting since I relocated to Boulder, CO, 6 years ago.I thank Bob and Bill with all respect and honesty.Doug Keltz10:48 AM/MT, Thurs., 6/24/21@@@

Easily the best mechanic Ive seen. I moved to Denver and still drive the hour to get my car serviced

Me and my family have gone here for years and they are without a doubt the most honest and thorough mechanics Ive ever met. Every time something went wrong with my Jeep Bob would take me back to the shop and show me exactly what the problem was. I would Highly recommend the 4 Wheeler to anyone looking for a mechanic.

I have been using The 4 Wheeler as my primary auto service provider since 2012. I have always received excellent service, fair and transparent pricing, and quality repairs. Everything from the full installation of a lift kit, to spark plugs, to oil changes, this has been my primary shop. Highly recommended.

Very good! Older Dodge truck! Bob and Bill helped oil pressure problems last year, had similar issue this year, bad sender, still under warranty! Great service we trust!

My 4 wheeling buddy and I wont take our Jeeps anywhere else. Since the late 90s theyve been providing us with honest, skilled work. They even fixed my vent vacuum pump for free with an old part they had laying around! Their trouble-shooting diagnostics skills are fantastic too.

I am a happy repeat customer. Bob is very good, very honest, and great at fixing my older high-mileage vehicles. He explains things clearly and his estimates are usually spot-on.

Bob can always be counted on to do a great job, and is always there when we need him!

I brought my car to the 4 wheeler because it had a strange wobble at all speeds. This problem had persisted even after seeing two other mechanics. Mike was genuinely interested in solving the problem, took the car for a drive with me and was able to diagnose (and fix) the problem.

After years of honest work, I wont take my car anywhere else. Im committed for life!

Excellent, honest service, a shop you can trust

The best