
Keep your RV road-ready with expert service from Iron Buffalo. We provide complete RV repair and maintenance solutions to ensure safety, comfort, and reliability—no matter where your journey takes you.
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RV Repair in Denver, CO, and Kalispell, MT
We specialize in comprehensive RV repair services for diesel and motorhome units in Denver, CO and Kalispell, MT. Our certified technicians are trained to handle all major RV systems, from drivetrains and electrical to HVAC and heating.
We work on Class A, B, and C motorhomes, including commercial RV platforms and high-mileage diesel units. No matter where your trip takes you, we’ll make sure your RV is ready.
Complete RV Service and Maintenance
We provide in-shop and mobile RV services designed to keep your motorhome operating smoothly. Services include:
- Engine diagnostics and repair
- Electrical system troubleshooting and repair
- Generator maintenance and replacement
- Water system and plumbing repair
- HVAC and heating system repair
- Roof inspections and leak repairs
- Battery testing and replacement
- Suspension and chassis service
- Fuel system diagnostics
Our preventative maintenance services include system inspections, fluid checks, and seasonal prep to ensure your RV is ready for long-term use.
What Makes Us Different
Whether you're stopping in for seasonal maintenance or need emergency service on the road, we’re equipped to provide solutions that get you moving again quickly. Our Denver and Kalispell facilities are equipped for large motorhome access, with high-bay service bays, heavy-duty lifts, and RV-compatible diagnostic equipment. And with mobile support available, we bring our shop to you when you can’t make it to us.
Need Motorhome Repair Service?
If your RV needs professional service or urgent repair, call Iron Buffalo at 303-623-7049 (Denver) or 406-890-7001 (Kalispell). We’ll restore comfort, performance, and safety to your home on wheels.
FAQs
What Areas Do You Serve?
We offer 24/7 mobile repairs and roadside assistance in the following areas:
Colorado: Boulder, CO; Aurora, CO; Centennial, CO; Fort Collins, CO; Greeley, CO; Georgetown, CO; Brighton, CO; Castle Rock, CO; Colorado Springs, CO; and Longmont, CO.
Montana: Whitefish, MT; Bigfork, MT; Somers, MT; Polebridge, MT; Thompson Falls, MT; Polson, MT; Rollins, MT; Libby, MT; and Eureka, MT.
Do You Repair Both Diesel and Gas RVs?
Yes. We service diesel pushers, gasoline-powered Class A and C motorhomes, and custom RV builds. Our technicians are equipped to handle all fuel types and configurations.
Can You Fix RV Systems Like Slide-Outs and Water Lines?
Absolutely. We repair plumbing systems, slide-out mechanisms, and other internal features in addition to engine and chassis components.
How Can I Get in Touch?
If you're ready to schedule diesel repairs, call Iron Buffalo today at 303-623-7049 (Denver) or 406-890-7001 (Kalispell).

In-House Diesel Mechanic Repairs
Workmanship & customer service are the cornerstones of our truck repair services. We proudly provide top-rated heavy-duty truck repair & maintenance services from our team of trusted diesel mechanics at Iron Buffalo Truck & Trailer in Denver, CO & Kalispell, MT. From brake and axle repairs, to transmissions and diesel engines, Iron Buffalo will get your commercial truck fixed and running smoothly again. Get in touch with us today to schedule a diesel mechanic repair service at one of our truck repair shop locations.
Customer testimonials

Light, Medium & Heavy-Duty Truck Repair Services in Denver, CO & Kalispell, MT
Trusted Diesel Repair & Fleet Services - Keeping You on the Road & Job Site
Commerce City, CO
5590 E 55th St, Commerce, City, CO
Kalispel, MT
104 Rocky Cliff Lane, Unit 1, Kalispell, MT