Base of Operations

Stockton, CA & Surrounding Central Valley

Certifications

Lippert Slide-out, Room & Landing Gear Specialist

Response Window

Same-Day & Emergency Deployments Available

01 / Climate & Thermal Control

RV Air Conditioning & Heating Repair

Maintaining stable climate systems is critical to preservation and comfort. We provide expert diagnostic testing, component replacement, and preventive maintenance on high-capacity RV air conditioning units, thermostats, and gas furnaces.

— Dometic & Coleman AC unit service
— Condenser coil clean & maintenance
— Capacitor diagnostics & replacement

— Roof-top AC & gasket replacements
— Thermostat and control wiring troubleshooting
— Furnace and distribution line repair

Precision alignment and mechanical tooling

02 / Structural Integrity

Certified Lippert Slide-Rooms, Jacks & Awnings

Mechanical leveling and slide systems require precise structural calibration. Trained directly in Las Vegas, Rob is a Certified Lippert Slide-out and Landing Gear Specialist capable of manual overrides, realignment, and full mechanical restorations.

— Stuck slide-room diagnosis & recovery
— Leveling jack & hydraulic repair
— Lippert landing gear component replacement

— New slide-room topper installation
— Awning fabric & motor upgrades
— Structural seal inspection & mechanical tuning

03 / Power Systems

Electrical Distribution & Generator Tuning

We troubleshoot complex dual-voltage environments (120/240 VAC and 12 VDC). From complete converter/inverter diagnostic swaps to full-service mechanical tuning of onboard Onan generators, we ensure off-grid resilience.

— Onan generator tune-ups (filters, plugs, oil)
— 120/240 VAC & 12 VDC circuit isolation
— Inverter, converter & charger maintenance

— Battery system performance testing & swaps
— Solar & Starlink hardware mounting & wiring
— GFCI protection and grounding fault isolation

04 / Utilities & Life Support

Plumbing, Gas Systems & Appliance Repairs

Leaking plumbing and malfunctioning LP gas lines present serious safety risks. We perform high-accuracy propane leak detection, line replacement, safety alarm calibration, and water system overhauls alongside general appliance repair.

— Propane (LPG) pressure testing & line isolation
— Water heater, pump & plumbing network repair
— Safety solenoid & CO/Propane detector replacements

— Absorption refrigerator service (Dometic/Norcold)
— Ranges, microwaves & onboard dryer troubleshooting
— Plumbing pipe repair and tank sensor maintenance

Active Maintenance Specials

Preventative Service Packages

Maximize performance and structural life before your next deployment with our current service priorities.

Special 01

Fall Generator Tune-Up

Ensure reliable cold-weather and emergency power with our comprehensive Onan Generator Tune-up. Includes clean oil, fresh spark plugs, and air filter maintenance.

Book Service Now →

Special 02

Slide Topper Replacement Package

Upgrade to heavy-duty, weather-resistant slide topper fabric. We have limited premium material in stock to seal and insulate your slides from overhead debris.

Inquire for Sizing →

Owner & Lead Technician

Rob Leal, U.S. Air Force Veteran

Founded in 2022, On-Site Mobile RV Repair was built around precision, technical expertise, and accountability. As a military veteran and certified Lippert Specialist, Rob applies rigorous diagnostic protocols to every mechanical, electrical, and gas system challenge.

U.S. Air Force Veteran Owned

Fully Licensed & Insured

4.5 Star Google Rating

Schedule On-Site Repairs

Request Your Appointment

Fill out the secure intake form below. Describe your system issue and your location. We will confirm dispatch availability promptly.

Phone/Text: (209) 901-7667 • Rob@on-site-rv.com