Overview: RV Repair
An RV is two vehicles bolted together. Underneath sits a chassis with an engine, brakes and suspension that a truck shop understands. On top sits a house with a roof, plumbing, propane, a furnace, a fridge and a battery bank, and the house side is where most of the money goes. Shops in this category work on the house, the chassis, or both. Ask which before you book.
Water is what kills these vehicles. The roof and every seam around a vent, an antenna or a skylight is held together by sealant that dries out and cracks. Once water is into the walls it rots the frame quietly for a season, and the first thing you notice is a soft patch of floor. Inspecting and resealing a roof is the cheapest work you will ever pay for here.
The rest of the list is seasonal and predictable. Winterizing and de-winterizing the water system, appliance and furnace service, holding tank repairs, slide-out adjustment, awning work, battery and converter faults. Book it in the off season, because every shop in the country is full the week the weather turns.
Work through the state and city lists to reach the shops near you. An RV needs tall doors, long bays and room to turn, so these shops sit out on the edge of town, and owners think nothing of driving past three ordinary garages to reach one.
Cost of RV service
Match the quote to the coach system or the motorhome chassis. A pump replacement is a finished repair; diagnostic and hourly rows are allowances or rates, not a completed job.
| Service or charge | Planning estimate | What it covers |
|---|---|---|
| Coach repairs, diagnosis and routine service | ||
| Standard fresh-water pump replacement | $180–$450per installed pump | Replace an accessible standard 12-volt fresh-water pump, including the pump and installation labor.Ask for leak and pressure testing. Diagnosis, mobile travel, wiring faults and plumbing or cabinet modifications may be separate.Scope detailsIncluded in this estimate: Standard replacement pump; Straightforward removal and installation Separate unless quoted otherwise: Mobile dispatch; Separate fault diagnosis; Plumbing or cabinet modification; Wiring repair |
| Appliance or electrical diagnosis | $150–$285per approved hour; mobile dispatch extra | One authorized hour troubleshooting an RV appliance or electrical fault, with findings.A completed repair is not guaranteed. Agree a spending cap and any credit toward repairs.Scope detailsIncluded in this estimate: One diagnostic hour and findings Separate unless quoted otherwise: Extra time, parts or repairs; Supplies and mobile dispatch; Chassis diagnosis |
| RV coach-service labor | $150–$260per billed hour | Routine coach-system repair on a trailer, fifth wheel or motorhome.Parts and mobile travel are extra. Compare billed hours, labor-guide billing and diagnostic minimums.Scope detailsIncluded in this estimate: Coach labor Separate unless quoted otherwise: Parts; Chassis work; Diagnostic minimums unless included |
| Freshwater-system winterization | $100–$200per conventional RV freshwater system | Basic shop winterization with the stated antifreeze and water-heater draining or bypass.List all fixtures. Hydronic heat, washers, ice makers, extra antifreeze, repairs and spring dewinterization cost more.Scope detailsIncluded in this estimate: Listed line winterization, antifreeze and heater draining/bypass Separate unless quoted otherwise: Unlisted appliances or extra antifreeze; Repairs, dewinterization or mobile travel |
| Routine slide-out maintenance | $100–$220per functioning slide-out | Inspect, condition seals and lubricate one functioning slide-out as appropriate.Adjustments, diagnosis, motors/gears, hydraulics, new seals and structural alignment are separate unless listed.Scope detailsIncluded in this estimate: Inspection, seal conditioning and lubrication Separate unless quoted otherwise: Adjustments unless listed; Diagnosis, parts or repairs |
| Roof inspection and minor spot resealing | $200–$500per limited roof-maintenance package | Inspect, clean and spot-seal identified seams or fittings on a sound, accessible roof.List the areas and sealant. Extensive stripping, wet decking, roof coatings and leak tracing are separate.Scope detailsIncluded in this estimate: Inspection, local cleaning, sealant and application Separate unless quoted otherwise: Extensive sealant removal or substrate repairs; Full-roof coating or leak tracing; Separate mobile dispatch |
| Motorhome chassis work | ||
| Gas/diesel motorhome chassis labor | $180–$260per billed shop hour | Mechanical labor on a gasoline or diesel motorhome chassis.Confirm engine/chassis support, minimum billing and diesel premiums. Parts, coach work and mobile dispatch are separate.Scope detailsIncluded in this estimate: Agreed chassis labor Separate unless quoted otherwise: Coach work and parts; Separate diagnosis; Mobile dispatch |
What affects the price
- RV type, length and system access.
- Number of slides, appliances and separate faults.
- Hidden water damage and warranty authorization.
Questions to ask before booking
- Do you service this coach system, appliance brand or engine/chassis, and is this a shop or mobile quote?
- What diagnostic limit can I authorize, and does the completed repair quote include parts, installation, testing, supplies and travel?
- For a roof or slide service, which areas and maintenance steps are included, and is damage repair separate?
Before you book
Visual inspection, fault diagnosis and roof repair are different services.
U.S. planning estimates in USD. Taxes and fees may be extra; confirm the work and written total. Actual quotes can fall outside these ranges.
Frequently asked questions
Can a regular garage work on an RV?
For the chassis, often yes, as long as the bay is tall enough and the vehicle fits: engine, brakes, tires and suspension are truck work. For the house side, no. Fridges, furnaces, propane lines, holding tanks, slide-outs and roofs are a separate trade with separate parts suppliers. Most owners end up using two shops, and that is a normal arrangement rather than a failure to find the right one.
Why does everyone go on about the roof?
Because water ingress is the single failure that writes off an RV. Sealant around vents, skylights, the antenna and every roof edge has a working life and then it cracks. Water runs inside the wall, not down the wall, so the rot is well established before you see a stain. Have the roof looked at every year, and have the seams redone on the shop's schedule rather than after a leak.
What does winterizing actually involve?
Getting every drop of water out before it can freeze. Drain the fresh tank and the water heater, blow the lines through or run antifreeze rated for potable systems, clear the traps and the toilet, and empty and flush the holding tanks. Then the battery comes off the shelf charge, the tires get covered, and the vents get screened against rodents. In spring it runs backwards: flush, sanitize, pressure test, look for leaks.
Who should touch the propane and the appliances?
Someone trained on RV appliances, not a home heating company. The fridge, furnace and water heater in these vehicles run on propane and electricity and fail in ways a house appliance does not. Regulators and lines get tested with a gauge, not a guess. Ask which appliance brands the shop is trained on, because diagnosis and parts are brand-specific and the wrong shop will simply order a whole new unit.
What goes wrong with slide-outs?
Seals, motors and alignment, in that order. The rubber that keeps weather out gets pinched, torn or dried, and then the slide leaks along its top edge every time it rains. Motors, gears and hydraulic rams wear and the room comes in crooked. Run the slides in and out during any inspection, listen for the motor laboring, and check the roof of the slide for standing water and debris.
