Mobile RV Repair in Spokane Valley, WA

Mobile RV service in Spokane Valley

Spokane Valley runs east from Spokane along I-90, Sprague and Trent toward the Idaho line. It’s the most RV-dense part of the metro: driveways with a trailer beside the garage, big storage lots along the freeway, two busy year-round RV parks off I-90, and a lot of camper vans and Sprinter conversions parked in front of houses. Getting a rig into a shop bay here can mean weeks of waiting; we come to it instead.

Looking for mobile RV repair near me or Sprinter repair in Spokane Valley? We handle the RV side of camper vans and Sprinter, Transit and ProMaster builds: house batteries, inverters, solar, DC-DC charging, shore power, water systems, furnaces and Victron systems. For engine, transmission and chassis computer work on the van itself, we’ll be straight with you: a Mercedes, Ford or Ram dealer or a diesel shop is usually the right call, and we’re happy to say so.

United Mobile RV LLC is dealership-trained, 11+ years: a Victron Energy Certified Installer, a weBoost Certified Installer/Reseller, a Dometic Professional and a Peplink Certified Associate.

Where we work in Spokane Valley

• West valley: Millwood, Dishman, Argonne and Pines, plus the Trent and Sprague corridors
• Central valley: Opportunity, University and the neighborhoods around Spokane Valley Mall
• East valley: Veradale, Greenacres and up to Liberty Lake
• South valley: Ponderosa, Saltese and the foothills toward Mica, where driveways get steep and icy
• North of the river: Otis Orchards and the Trentwood area

Storage-lot customers: tell us the facility name and unit or row, and check that outside technicians are allowed. Many valley lots are fine with it during business hours.

RV parks near Spokane Valley

We’re not affiliated with any of these parks. They’re places local RVers stay, and we’ll meet you at your site where the park allows outside technicians:

• Roam Spokane RV Resort (the former Spokane KOA): 3025 N Barker Rd, off I-90 exit 293. Open year-round with full-hookup 30/50-amp pull-through sites; some rows close in winter.
• Trailer Inns RV Park: 6021 E 4th Ave, just off I-90 exit 285 at Sprague. Full hookups, pull-throughs and propane on site.
• Riverside State Park, Bowl and Pitcher: across town on the Spokane River, with standard, partial and full-hookup sites for rigs up to 45 feet.
• Liberty Lake Regional Park: seasonal county park at the east end of the valley with water/electric and a few full-hookup sites.

Long-term residents at the year-round parks are some of our most regular customers in winter: heat tape, frozen hoses, furnace faults and 50-amp pedestal problems all show up when it gets cold.

RV life in Spokane Valley: cold snaps, smoke and full-timers

The valley floor collects cold air on still winter nights, so it can be colder here than on the South Hill. Snow, freezing fog and single-digit cold snaps from December through February are what break plumbing: low-point drains, water pumps, toilet valves and water heater fittings all split when water is left in them.

People living in their rigs year-round have a different list. Heated hoses fail, skirting gaps let wind under the floor, furnaces run constantly and expose weak igniters and sail switches, and 30-amp rigs running space heaters trip breakers and cook shore power plugs. We see a lot of melted plug ends in January.

Lithium batteries need special care here. LiFePO4 must not be charged below freezing, and a good BMS blocks charging when it’s too cold, which looks like a dead battery on a cold morning. In vans with batteries under a seat inside the living space this is rarely a problem; in trailers with an outside battery box it often is.

Summer brings heat in the 90s and, in some years, weeks of wildfire smoke. Solar output drops, the AC runs all day, and generators that sat all winter get asked to carry a full load. That’s when we see surging and shutdowns.

RV and van repairs we do most in Spokane Valley

The most common calls from the valley, with a short explanation of each:

• Camper van and Sprinter house electrical. Dead house batteries, inverters that fault out, DC-DC chargers that never charge from the alternator, solar that reads zero, and shore power inlets that stopped working. Most van builds are a mix of brands and DIY wiring, so we trace the system end to end before replacing anything. Our van build electrical guide covers the basics. See RV electrical.
• Victron, lithium and solar. As a Victron Energy Certified Installer we install and service MultiPlus inverter/chargers, SmartShunt monitors, Cerbo GX and VRM monitoring, DC-DC charging and solar. Many valley vans and trailers are upgrading from lead-acid to lithium. We match the charger, DC-DC charger and solar controller settings to the battery so it actually gets fully charged. See Victron systems.
• Generator service and repair. We service and repair Onan, Generac and Kohler RV generators: oil, filters and plugs, plus surging, no-start and shut-down-under-load problems. Gas units that sit for months often surge because old fuel varnishes the carburetor; running the generator under load about once a month helps. Generators on rigs that full-time at the I-90 parks get heavy winter use, so oil and air filter service intervals come around faster than people expect. See generator service.
• Winterizing and freeze damage. We winterize with a compressed-air blow-out, RV antifreeze where you want it, and a water heater bypass, and we fix the split fittings, cracked pump heads and leaking valves that a missed freeze leaves behind. If you live in the rig through winter, we can check heat tape, heated hoses, skirting and tank heaters instead of winterizing. See plumbing and our winterization guide.
• LP gas, furnace and water heater. Furnaces that click but won’t light, water heaters that fault out, regulators that freeze up or leak, and LP detectors past their date. We leak-test and pressure-check before we call anything fixed. In winter, a furnace that cycles on and off or blows cold usually points to a weak battery, a dirty sail switch or low LP pressure from a regulator that’s icing. See LP gas.
• 12V and shore power faults. At full-hookup sites, we check the pedestal, cord and plug when breakers trip, since a loose or burnt connection is common. We trace dead outlets, tripping GFCIs, burnt shore power plugs, converters that stopped charging and parasitic draws that flatten batteries in storage. See RV electrical.
• Starlink, Peplink and weBoost. Mounting and powering Starlink, Peplink routers that fail over between Starlink and cellular, and weBoost boosters for weak signal. For remote workers living in the valley parks, a Peplink router that fails over between Starlink and cellular keeps calls up. See connectivity.

How a mobile visit works

1. Call, text or book online with the year, make and model, what the rig is doing, and where it’s parked in Spokane Valley. Photos or a short video help.
2. We ask a few questions first. Some problems are a setting or a tripped breaker, and we’ll tell you if a remote session can sort it out without a trip.
3. If we need to come out, we set a day and a time window. Let the park office or storage facility know an outside technician is coming.
4. On site we test before we replace: meter readings, load tests, and thermal imaging where it helps. You get a plain explanation and a quote before any repair starts.
5. Most repairs are finished on the same visit. If a part has to be ordered, we tell you what and how long, then come back to finish.

Pricing

On-site diagnostic visit: $175. Labor: $150/hr. The $175 diagnostic is a standalone fee for on-site troubleshooting. Every visit has a minimum: one hour of labor ($150) or the $175 diagnostic, depending on the job. $75 trip fee within 50 miles. Over 50 miles, $2.00/mile both ways. Parts and supplies vary per job. Details are on our pricing page. Flat-rate winterization is $175 for a travel trailer and $225 for a fifth wheel or motorhome.

What to have ready

• Year, make, model and length, plus the brand of the generator, inverter or fridge if you know it.
• Clear access to the problem: battery bay, generator compartment, water heater door or roof ladder.
• Shore power if you have it, and enough propane to test LP appliances.
• Your site or space number, any gate code, and park rules about outside technicians.
• Error codes, blinking lights or app screenshots (Victron VRM, Onan, Dometic or thermostat codes).

Guides and service pages for this area

• Van build electrical troubleshooting
• Lithium battery buying guide: including cold-weather charging
• Converter and inverter/charger guide
• RV winterization guide: blow-out vs. antifreeze, step by step
• RV generator troubleshooting guide: surging, no-start and load problems
• RV furnace troubleshooting guide
• Surge protector and EMS guide

Nearby areas and services

• Spokane, WA (all areas)
• Liberty Lake, WA
• Airway Heights, WA
• Cheney, WA
• US-2 corridor, WA
• All of Washington
• Generator service
• Plumbing and winterizing
• RV electrical
• Roof and seals
• LP gas
• Victron systems
• Remote RV support
• All RV guides