RV Repair & Service for Wentzville, MO

Wentzville is booming — one of the fastest-growing cities in Missouri — and the RV community is growing right along with it. With new neighborhoods going up, larger properties, and quick access to I-70 and I-64, Wentzville has become a prime area for RV ownership. The GM plant brings good jobs, the schools are strong, and families here invest in their RVs.

3R RV Service Center is just 30 minutes south of Wentzville in Union, MO. We're the closest factory-authorized RV service center to Wentzville — closer than anything in St. Charles, St. Peters, or the city. And getting here doesn't require fighting metro traffic with your rig.

Growing Community, Limited RV Service

Wentzville's explosive growth hasn't brought a qualified RV service center with it. The nearest options are dealer service departments in the St. Louis metro with week-long wait times. 3R RV fills that gap — we're a short drive south on Highway 61 to Highway 47, and our RVTI Level 4 Master Certified technicians can handle everything from a leaking roof to a ground-up rebuild.

What We Do

  • Roof repair and full replacement — EPDM, TPO, fiberglass, rubber
  • Water damage restoration — floors, walls, slide-outs
  • 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 — certified
  • Aqua-Hot heating — certified
  • Appliance repair — Dometic, Norcold, Suburban, Atwood
  • Plumbing repair — freshwater, grey, black systems
  • 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 Wentzville

Highway 61 South to Highway 47 South into Union. About 30 minutes. 7819 Highway 47 S, Union, MO 63084

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