Stonum Automotive in 80501, Longmont, CO

• 1812 Sunset Pl
• Longmont,, CO 80501
• 303-485-9303
• Auto Repair, Longmont, CO 80501

Business Description:
We specialize in

• Auto Repair
• Tire and Alignment Service
• Brake Service
• Routine Maintenance
• Advanced Diagnostics
• Engine Repair

Hello! Welcome to Stonum Automotive. With over 20 years in business, we are proud to be your local Automotive Repair experts. As the premier auto repair shop in Longmont,, our highly trained automotive technicians take pride in all of their Auto Repair efforts.

Each and every one of our reliable specialists undergoes extensive automotive repair training, including advanced certification in Scheduled Maintenance, Air Conditioning Service, Electrical Testing, Alignments and Suspension, and Advanced Diagnostics. While preventative maintenance may be one of our specialties, our reputation has been built on our ability to solve all complex mechanical issues on your vehicle bumper to bumper.

No matter your vehicle needs, our team at Stonum Automotive will be glad to provide trustworthy, honest, and reputable service. We are grateful to offer reliable vehicle care to Longmont, residents, as well as those just driving through.

Category: Auto repair shop

	Mark
Fabio R. Longmont, CO	Mark and Caleb were very helpful and thank you for the installation of the headlights
on 7/22/2024 for an auto repair of their Mitsubishi

	Everyone
Rachel B. Longmont,	Everyone at Stonum is so friendly, knowledgeable, and helpful. I think this is the beginning of a beautiful friendship...I won't be taking our cars anywhere else from now on.
on 7/21/2024 for an auto service of their Honda

	I took
Yvonne W. Longmont, CO	I took my car out for a drive yesterday, it runs so much better. It feels a lot smoother
on 7/18/2024 for an auto service of their Nissan

	Fast
Joan H. Longmont,	Fast, through and reasonable service!!!
on 7/12/2024 for an auto service of their Volvo

	As
Bob M. Longmont, CO	As always, the service was great! Mike in the van, and Mark and Caleb behind the counter were polite, knowledgeable and most helpful. I've been a customer for a few years and will back.
on 6/26/2024 for an auto repair of their Buick

	N/A
Harold O. Longmont,	N/A
on 6/21/2024 for an auto repair of their Toyota

	Sean
Woody S. Longmont,	Sean quickly diagnosed the problem with my Tahoe and put me back on the road while keeping my expenses to a minimum. Mark and the service department kept me informed of the progress. They have a great team.
on 6/19/2024 for an auto repair of their Chevrolet

	Good
Riley M. Milliken, CO	Good service
on 6/18/2024 for an auto repair of their RAM

	I highly
Shelly D. Longmont,	I highly recommend Stonum Automative! Excellent customer service & high quality work!
on 6/16/2024 for an auto repair of their Chevrolet

	The
John L. Longmont,	The staff is consistently courteous, efficient and informative. Stonum Rocks!
on 6/14/2024 for an auto service of their Audi

	Excellent
Melanie H. Longmont, CO	Excellent service, these guys are amazing! Highly recommend it.
on 5/22/2024 for an auto repair of their Chevrolet

	Reliably
Noel H. Longmont, CO	Reliably excellent in quality of service to car and customer
on 5/16/2024 for an auto service of their Subaru

	Excellent
Kim A. Longmont,	Excellent customer service, friendly staff, knowledgeable, honest. I trust them with my auto. They have 20 years of good work in Longmont.
on 5/16/2024 for an auto repair of their Mazda

	I trust
Snyder C. Longmont, CO	I trust them implicitly. If they say I need something done I feel comfortable in saying take care of it. Their customer service is incredible. Always friendly and helpful.
on 5/13/2024 for an auto service of their Lexus

	Excellent
Laura W. Longmont, CO	Excellent repair tasks tracker/planner. Staff happy to answer questions about why and when of repair needs. New client auto in depth evaluation was thorough. New client auto inspection, fluids check, no-charge tire rotation, but quite a bit pricier than i had anticipated.
on 5/10/2024 for an auto service of their Mazda

	Honest
Paul G. Longmont, CO	Honest - trustworthy - excellent communication & service
on 5/3/2024 for an auto service of their Toyota

	Very
Fabio R. Longmont, CO	Very honest
on 4/24/2024 for an auto service of their Mitsubishi

	Excellent
Richard B. Erie, CO	Excellent!
on 4/23/2024 for an auto service of their Kia

	Very
Pete L. Longmont, CO	Very happy with the service provided to get my truck back on the road, especially considering what was wrong with it.
on 4/19/2024 for an auto service of their Ford

	Couldn't
Reid L. Longmont,	Couldn’t be happier! Amazing service. Amazing people.
on 4/18/2024 for an auto repair of their Fiat

	Only
Ken D. Longmont, CO	Only place I will take my cars to highly recommended
on 4/3/2024 for an auto repair of their Ford

	I really
Diane A. Longmont, CO	I really appreciate the team at Stonum Automotive. Always professional and thorough - that is why I keep returning!
on 3/9/2024 for an auto service of their Honda

	Go to
Ellen H. Longmont, CO	Go to Stonum 🙂
on 2/12/2024 for an auto repair of their Subaru

	That they
Susie E. Johnstown, CO	That they are honest and take very good care of my car.
on 2/7/2024 for an auto repair of their Toyota

	We drive
Matthew F. Johnstown, CO	We drive from Johnstown for Stonum for service on our vehicles. They are always upfront about things and honest to the core on what needs to be done and what can wait. They never force anything and the techs at top notch! They never leave stains inside, marks on the body, etc. so when you pick up your vehicle it is clean…
on 1/30/2024 for an auto repair of their GMC

	Everyone
Tetra T. Longmont, CO	Everyone did a great job helping us get our 2 vehicles serviced in a way that was convenient and efficient. Thanks!
on 1/30/2024 for an auto service of their Chevrolet

	I was
Eleanore D. Longmont, CO	I was very pleased with the honesty and professionalism. Mark seemed so knowledgeable and helpful in his explanation to me regarding the diagnosis of my vehicle.
on 1/27/2024 for an auto repair of their Acura

	Stonum
Boulder County Farmers M. Longmont, CO	Stonum Automotive is a great resource for evaluation and repairs. The team is honest and direct about what your vehicle needs, I look forward to working with John and the team again soon :)
on 1/23/2024 for an auto repair of their Ford

	Great
Ruben H. Longmont, CO	Great job. Service reps always helpful.
on 1/18/2024 for an auto repair of their Toyota

	A+
David M. Niwot, CO	A+++
on 1/16/2024 for an auto repair of their Jeep

	Great
Mary C. Lyons, CO	Great service! First time I brought my Dodge ram 2500 in to the shop. My truck problem was identified quickly and corrected. Work was done as expected. Questions answered promptly! I will definitely be back.
on 1/16/2024 for an auto repair of their RAM

	Best
Bob P. Longmont, CO	Best service ever
on 1/1/2024 for an auto repair of their Dodge

	Very
Diane H. Longmont, CO	Very patient with this elderly lady! Good service and excellent explanations! Nice polite young men at front desk! Only problem is the costs to keep my Buick running!
on 12/8/2023 for an auto repair of their Buick

	They're
Tom T. Longmont, CO	They’re the BEST !! Have helped us out immensely!
on 12/2/2023 for an auto repair of their Toyota

	Customer
Ruben H. Longmont, CO	Customer service personnel are always friendly & ready to help. We appreciate the service from each one. Thanks to all.
on 12/1/2023 for an auto repair of their Toyota

	Great
Robert G. Longmont, CO	Great work, honest Trustworthy
on 11/29/2023 for an auto repair of their Ford

	I appreciate
Patricia G. Erie, CO	I appreciate my longstanding relationship with Stonum. I am grateful for Peter’s advice and knowledge over the years.
on 11/1/2023 for an auto repair of their Toyota

	Very thorough
Phil B. Longmont, CO	Very thorough and professional.
on 10/29/2023 for an auto service of their Nissan

	I trust
Scott M. Longmont, CO	I trust them to be honest and do good work.
on 10/20/2023 for an auto repair of their Ford

	Grateful
James M. Longmont, CO	Grateful for a very helpful team at Stonum
on 10/10/2023 for an auto repair of their Dodge

	Stonum
Serena M. Longmont, CO	Stonum is by far the best auto repair shop that I’ve taken my cars to. They’ve worked on my cars for more than 15 years and I couldn’t ask for better service. They do the job right the first time, they never surprise me with unapproved extra charges, and if the repairs are less, they pass the savings on to me. Plus they are courteous, respectful & patiently answer any questions. I guess the highest recommendation I can give them is that I can trust them to do the job right & not to rip me off. High praise indeed for auto repairs.
on 10/6/2023 for an auto repair of their Kia

	Best
Jim P. Longmont, CO	best service i have ever had without a doubt.
on 9/22/2023 for an auto service of their Toyota

	Good
Mike S. Longmont, CO	Good
on 9/20/2023 for an auto repair of their Buick

	Great
Pete S. Longmont, CO	Great work!
on 9/18/2023 for an auto service of their Dodge

	Friendly
Martin R. Longmont,	Friendly and knowledgeable clean environment and honest I highly recommend any issues you may have give them a call and schedule your appointment.
on 9/11/2023 for an auto repair of their Chevrolet

	Appreciate
Deb S. Longmont,	Appreciate the fast service and great customer service. I realize your initial estimate was just that- an estimate. But I was a little surprised the final ticket came to almost $400 higher. But so far so good with the brakes.
on 9/6/2023 for an auto repair of their Subaru

	Best
Shelley S. Longmont, CO	Best service
on 9/2/2023 for an auto service of their Subaru

	Highly
Melanie H. Longmont, CO	Highly recommended!
on 8/15/2023 for an auto repair of their Chevrolet

	The Stonum
Micaela P. Longmont, CO	The Stonum Automotive staff provides exceptional customer service, honesty, and quality work.
on 8/14/2023 for an auto service of their Ford

	Having
Joe N. Longmont, CO	Having been a customer for a very long time and have had several vehicles serviced by Stonum over the years, I must say I am very satisfied with the work they do for me. I am elderly and appreciate their honesty, advice and appreciation of my wishes as well as their shuttle service when I leave my car with them. You will not be disappointed.
on 8/9/2023 for an auto service of their Ford

	Honest
Sam H. Longmont, CO	Honest and knowledgeable and very good with explaining the issues
on 8/3/2023 for an auto repair of their Ford

	Great
John T. Longmont, CO	Great shop, knowledgeable & skilled techs & advisors!!
on 8/3/2023 for an auto service of their Chevrolet

	I appreciate
Diane A. Longmont, CO	I appreciate the service and honesty of the crew at Stonum. They are top notch.
on 7/27/2023 for an auto repair of their Saturn

	Good
Bob B. Longmont, CO	Good customer service and very informative!
on 7/26/2023 for an auto repair of their Honda

	The best
Barbara W. Longmont, CO	The best! Honest and reliable. On time; offer shuttle service in the area. Much appreciated!
on 7/13/2023 for an auto service of their Honda

	I am
Bruce K. Longmont, CO	I am a retired Chry tech and can really appreciate it when a company like yours offers me the chance to provide service to my 2018 KIA Soul. Service is everything,along with honesty and understanding please keep up the amazing service and your establishment is top notch, keep up the good work and I will be back for future service. Thank you Bruce (Buck) Karst. P.S. your shuttle driver is a very courteous young man!!
on 7/6/2023 for an auto service of their Kia

	Quality
Barry G. Longmont, CO	Quality service, good communication with staff during the job. Am a repeat customer over several years.
on 7/5/2023 for an auto service of their Toyota

	Best
Ruben H. Longmont, CO	Best service. Everyone is polite & professional.great group of guys.
on 6/23/2023 for an auto service of their Toyota

	I trust
Meribeth W. Longmont, CO	I trust Stonum Automotive to keep my car in top running condition and let me know of any potential problems.
on 6/19/2023 for an auto service of their Toyota

	They are
Betsy H. Longmont, CO	They are knowledgeable, professional and always do a great job. Each time I bring a vehicle to them, they go above and beyond. I am always confident the work is of the highest quality. It is why I continue to use them again and again.
on 6/19/2023 for an auto repair of their Hyundai

	Very friendly
Kendall W. Longmont, CO	Very friendly, informative employees that offered fair pricing and great services. I will return for future vehicle services and recommend others to do the same!
on 6/14/2023 for an auto repair of their Subaru

	I was in
Ellen M. Longmont, CO	I was in to have some things checked out today. Will be back in a couple of weeks to have new struts put in. Excellent customer service.
on 6/2/2023 for an auto repair of their Toyota

	Fast, friendly
Kerry C. Longmont, CO	Fast, friendly and honest. Good quality work
on 5/17/2023 for an auto repair of their Mazda

	Best
Carol K. Longmont, CO	Best service ever.
on 4/20/2023 for an auto repair of their Subaru

	They are
Barbara O. Niwot, CO	They are very efficient and professional to deal with. Very thorough in explaining the work that they did and to be done.
on 3/31/2023 for an auto service of their Kia

	Stonum
Philip C. Longmont, CO	Stonum lives up to its slogan--Honest car care and repair! Fast, fair, excellent service on our 2006 Beetle.
on 3/3/2023 for an auto service of their Volkswagen

	Professional
Kathy B. Longmont, CO	Professional and attentive. I would recommend them to others.
on 2/21/2023 for an auto service of their Honda

	They know
Robin T. Longmont, CO	They know there stuff! They are friendly and take the time to explain in detail. Reasonable in price.
on 2/19/2023 for an auto repair of their Dodge

	Me personally
Fabio R. Longmont, CO	Me personally I've always had very good rapport with the guys they've always helped me out I've even called him out of state when I get in the gym they've helped me out they've done well for me all the work and everything is always upfront no hidden fees just really honest
on 2/9/2023 for an auto service of their Mitsubishi

	Very fair
Gustavo N. Niwot, CO	Very fair prices and quality work!
on 2/3/2023 for an auto repair of their Chevrolet

	I am
Ken P. Niwot, CO	I am always comfortable with their diagnosis and the professionalism of their work.
on 2/1/2023 for an auto repair of their Jeep

	Good
Brian C. Longmont, CO	Good customer service. Seems to have issues with "Attention to detail", though. On my friend's vehicle, Stonum forgot to reinstall the oil dipstick. On my truck, after the turbo was replaced, the coolant that was lost during the repair was not replaced, so I got an alert in the evic that my coolant was low. The coolant level was normal on the day I took my truck to Stonum, as I had popped the hood and checked all the fluids before I took it in.
on 1/30/2023 for an auto repair of their RAM

	Absolutely
Mary R. Johnstown, CO	Absolutely yes
on 1/27/2023 for an auto service of their Ford

	Great
David H. Longmont, CO	Great. I have come to trust what they tell me over time. It feels like they are working in my interest for the best solutions.
on 1/25/2023 for an auto service of their Toyota

	Very
Yamilet L. Longmont, CO	Very professional!
on 1/20/2023 for an auto repair of their Subaru

	Fine
Laurie P. Longmont, CO	Fine
on 1/9/2023 for an auto repair of their Toyota

	This was
John J. Longmont, CO	This was my second visit with Stonum and everything is on the up an up service performance is exactly what I was looking for in an auto repair shop!
on 1/5/2023 for an auto repair of their Ford

	Very good
Jim P. Longmont, CO	very good. I was well pleased
on 12/14/2022 for an auto service of their Toyota

	Y'all
Tetra T. Longmont, CO	Y'all do a great job taking care of our fleet vehicles. thank you!
on 12/12/2022 for an auto service of their Chevrolet

	Great
John T. Longmont, CO	Great service Dept. I trust them. They’ve solved problems the truck mfgr couldn’t fix!
on 12/9/2022 for an auto repair of their Chevrolet

	Fantastic
Judy L. Longmont, CO	Fantastic!!!!:::
on 12/9/2022 for an auto repair of their Honda

	I have been
Aundrea P. Greeley, CO	I have been coming to Stonum for my car repairs for years. When I moved to Greeley it was difficult to try to find a mechanic that was trust worthy and reliable, and I still found myself turning to Stonum for my cars needs. Peter is very kind and explains everything patiently to ensure that I understand what they did. I will recognize that the price can seem a little high, though the quality of service and the kindness this company continues to demonstrate is worth it. Thank you!
on 12/8/2022 for an auto service of their Ford