RV Repair & Service for St. Louis, MO
St. Louis is one of the biggest RV markets in the Midwest, and 3R RV Service Center is just 50 minutes west on I-44 in Union, MO — an easy drive from anywhere in the metro. Whether you're parked at Sundermeier RV Park in St. Charles, camping at Jellystone Park in Eureka, pulling into the St. Louis West KOA on Historic Route 66, or storing your rig somewhere in west county, we're your closest factory-authorized RV service center.
Unlike the big chain shops that shuffle your RV through a revolving door of under-trained techs, 3R RV is family-owned and operated with RVTI Level 4 Master Certified technicians. We work on every make and model — from Class A diesel pushers to fifth wheels, travel trailers, toy haulers, and horse trailers.
What We Do for St. Louis RV Owners
- Full mechanical repair — generators, (brakes, suspension trailers only)
- Roof repair & replacement — EPDM, TPO, fiberglass, and rubber
- Water damage restoration — floor rot, wall delamination, slide-out leaks
- Electrical diagnostics — 12V, 120V, inverters, solar, coach wiring
- Appliance repair — Dometic, Norcold, Suburban, Atwood, lippert, furrion
- Aqua-Hot & Onan certified service
- Complete RV rebuilds and renovations
- Horse trailer repair and service
- OEM and aftermarket parts department
- Secure RV storage
Factory Authorized Service
3R RV is a factory-authorized service center for Newmar, Tiffin, and Keystone — three of the most popular brands on the road. We also service Fleetwood, Monaco, Winnebago, Thor, Forest River, Coachmen, Heartland, Grand Design, and every other manufacturer.
Getting Here from St. Louis
Take I-44 West from downtown St. Louis. It's a straight shot — about 50 minutes with no traffic. Exit at Highway 50 in Union. We're right off the highway at 7819 Highway 47 S, Union, MO 63084
Call us at (636) 583-2244 or Book an Appointment online.