RV Repair & Service for O'Fallon, MO
O'Fallon is one of the largest suburbs in the St. Louis metro with over 90,000 residents — and a ton of RV owners. Big driveways, suburban storage lots, and easy highway access mean O'Fallon families are some of the most active RVers in the region. Whether it's weekend camping at Cuivre River State Park, holiday trips to Branson, or snowbird runs to Florida, O'Fallon rigs see heavy use.
3R RV Service Center is just 35 minutes west in Union, MO. We're easier to get to than the shops scattered across the St. Louis metro, and you won't have to navigate your 35-foot fifth wheel through city traffic to get here. Take I-70 West to Highway 47 South — straight shot.
Your Neighborhood RV Shop
Most O'Fallon RV owners have been driving 45 minutes or more into St. Louis County or St. Peters for service, only to wait weeks for an appointment. We're closer, faster, and our RVTI Level 4 Master Certified technicians handle the work that dealer service bays struggle with — water damage, complex electrical issues, roof replacements, and full renovations.
What We Do
- Roof repair and full replacement — all materials
- Water damage restoration — structural rebuilds, floor replacement
- Electrical diagnostics and rewiring — 12V, 120V, inverter, solar
- Slide-out repair, alignment, and seal replacement
- Brakes and suspension — trailers and 5th wheels
- Onan generator service — certified
- Aqua-Hot heating — certified
- Appliance repair — refrigerators, furnaces, water heaters, A/C
- Plumbing system repair
- Awning repair and replacement
- Complete RV renovation and remodels
- Horse trailer repair and service
- Full parts department — OEM and aftermarket
- Secure RV storage
Factory Authorized
Newmar, Tiffin, Keystone. All other brands serviced.
Getting Here from O'Fallon
I-70 West to Highway 47 South into Union. About 35 minutes. 7819 Highway 47 S, Union, MO 63084
Call us at (636) 583-2244 or Book an Appointment online.