RV Repair & Service for Farmington, MO

Farmington is the hub of St. Francois County and the heart of Missouri's lead belt region. It's a community built on hard work — mining, manufacturing, and trades — and the people here use their RVs the same way. These aren't garage queens. They're trailers and fifth wheels that get towed to campgrounds, hauled to hunting land, and put to real use in the Mark Twain National Forest and the Ozark Trail corridor.

3R RV Service Center is about an hour north of Farmington in Union, MO. We're the closest factory-authorized RV repair facility serving St. Francois County, and we understand the kind of equipment that comes out of this area. Working rigs that need working repairs — not upsells and fluff.

We're family-owned, RVTI Level 4 Master Certified, and factory authorized for Newmar, Tiffin, and Keystone. We've been in business since 2005.

Lead Belt & Ozark Trail RV Country

Farmington, Park Hills, Bonne Terre, Desloge, Ironton — this whole corridor is surrounded by outdoor recreation. St. Joe State Park, Elephant Rocks, Johnson's Shut-Ins, and the Ozark Trail bring campers from all over Missouri. The terrain is rocky, the campground roads are rough, and the humidity eats seals alive. We see the results regularly from rigs that spend time down here.

What We Do

  • Roof repair and full replacement — EPDM, TPO, fiberglass, rubber
  • Water damage restoration — floor rot, wall delamination, slide-out leaks
  • Electrical diagnostics — 12V, 120V, inverters, solar, coach wiring
  • Slide-out repair, alignment, and seal replacement
  • Brakes and suspension — trailers and 5th wheels
  • Onan generator service and rebuilds — certified
  • Aqua-Hot hydronic heating — certified
  • Appliance repair — Dometic, Norcold, Suburban, Atwood
  • Plumbing system repair
  • Awning repair and replacement
  • Complete RV rebuilds and renovations
  • Horse trailer repair and service
  • OEM and aftermarket parts
  • Secure RV storage

Factory Authorized

Newmar, Tiffin, Keystone. All brands serviced.

Getting Here from Farmington

Take Highway 67 North to I-55 North to I-44 West. Exit Highway 50 in Union. About 1 hour.7819 Highway 47 S, Union, MO 63084.

Call us at (636) 583-2244 or Book an Appointment online.