CM Automotive

Auto Repair Shops in Helena, Montana

4.7 (89)

Category	Auto Repair Shops · Battery store, Diesel engine repair service, Repair service, Tire repair shop
Address	3005 Prospect Ave, Helena, MT 59601
Street	Prospect Avenue
Area	Helena, Montana
Phone	(406) 422-4805
Google rating	4.7 (89)
Source	Google Maps and public records · listed Oct 19, 2026

Hours

Monday	8 am–5:30 pm
Tuesday	8 am–5:30 pm
Wednesday	8 am–5:30 pm
Thursday	8 am–5:30 pm
Friday	8 am–5:30 pm
Saturday	Closed
Sunday	Closed

About CM Automotive

At CM Automotive, our goal is to ensure you continue to get where you need to go in the years to come with a reliable and safe vehicle. We provide the products and services you need to keep your car, light truck, or SUV dependable. We offer automotive and diesel repair that you can trust. You'll love our proven integrity with digital inspections and photos. Call or Text today, and we will get you on your way. CM Automotive- Take a ride on our reputation.

CM Automotive is an auto repair shop in Helena, Montana. It is listed at 3005 Prospect Ave, Helena, MT 59601, which places it among the local businesses of Helena that residents and visitors turn to when they need this kind of service close by. Google also lists it under battery store, diesel engine repair service, repair service, which is worth knowing if you are comparing several options in the area.

The business lists hours on 5 days of the week. Typical hours are 8 am–5:30 pm. It is closed on Saturday, Sunday. As with most places, expect changes around holidays; the phone number below is the fastest way to confirm. You can reach CM Automotive at (406) 422-4805; calling is usually the quickest way to ask about availability, prices or directions. Its website is cmautomotivemt.com, where you may find menus, price lists or booking options.

Customers rate it 4.7 out of 5 on Google across 89 reviews.

How CM Automotive compares with other auto repair shops in Helena

It shares Prospect Avenue with 4 other listed businesses.
Nearest other auto repair shops: Northwest Battery and Automotive (0.0 mi), R & R Diesel Repair (0.5 mi), DJ's Automotive (0.8 mi)

Before you go

Check your vehicle for open safety recalls on NHTSA.gov; recall repairs are free at a franchised dealer.
Ask for a written estimate before work starts and to approve any extra repairs first.
Ask whether technicians are ASE-certified and what warranty covers parts and labor.

Latest Google reviews

The 5 most recent reviews shown on Google Maps. Reviews belong to their authors; read all of them on Google.

Genie Thompson 3 months ago

I recently had parts installed on my vehicle at CM Automotive and the experience was EXCELLENT from start to finish. The staff was professional and super quick to respond. Everything fits perfectly, and my car runs noticeably smoother. Pricing was fair, and they made sure everything was thoroughly checked before returning my vehicle. Overall, I highly recommend this shop for quality work and reliable service, and I will definitely return for future needs.

Lori Cole 3 months ago

CM Automotive did a great job on my truck. Thought the transmission was going and it was not. Saved me a ton of money. Have a couple more things to get done and I would choose them anyday. Fantastic staff. Thank you!

David Reeves-Mendoza 9 months ago

These guys did a great job installing my new engine. Super communicative and always kept me in the loop on what was going on. You don’t get that kind of service everywhere anymore. I’ll definitely keep bringing my truck back here!

Rob Clover 9 months ago

Great experience. A busy shop reflecting quality service and it took a week to get an appointment. They did a great job of solving my Nissan's starting problem. Highly recommended!

Jack Marks 10 months ago

CM Automotive in Helena, MT, is truly outstanding. I brought in my old cabin truck with multiple issues, initially suspecting chipmunk damage to the wiring. I couldn't have been more wrong, but thankfully, the team at CM Automotive was up to the challenge. Despite the truck's age and the scarcity of parts, they managed to breathe new life into it. Their expertise in handling older vehicles is impressive, and they went above and beyond to source hard-to-find components. Special mention goes to Red, who kept me informed throughout the entire process. Her professionalism and communication were top-notch. If you have an older vehicle or are dealing with complex automotive issues, I highly recommend CM Automotive. They have the skills, resources, and dedication to tackle even the most challenging jobs. Thank you, CM Automotive, for reviving my trusty old cabin truck!

All reviews on Google ↗

Frequently asked questions

Where is CM Automotive located?

CM Automotive is at 3005 Prospect Ave, Helena, MT 59601, in Helena, Montana. Use the “Open in Google Maps” button on this page for directions.

What kind of business is CM Automotive?

CM Automotive is listed as an auto repair shop and is also tagged on Google as battery store, diesel engine repair service, repair service.

What are the hours of CM Automotive?

Published hours are Monday: 8 am–5:30 pm; Tuesday: 8 am–5:30 pm; Wednesday: 8 am–5:30 pm; Thursday: 8 am–5:30 pm; Friday: 8 am–5:30 pm; Saturday: Closed; Sunday: Closed. It is closed on Saturday, Sunday. Hours can change on holidays, so call before a special trip.

Is CM Automotive open on Sunday?

No, CM Automotive is closed on Sunday.

What is the phone number of CM Automotive?

You can call CM Automotive at (406) 422-4805.

How is CM Automotive rated on Google?

CM Automotive has a Google rating of 4.7 out of 5 from 89 reviews.

Does CM Automotive have a website?

Yes, the website of CM Automotive is cmautomotivemt.com (linked on this page).