An RV needs regular maintenance to its roof and seals, tires, brakes, wheel bearings, batteries, plumbing, and appliances. Check the roof and tire pressure monthly, service brakes and bearings annually, reseal seams every year, and winterize the water system before freezing weather to prevent costly damage.
Key takeaways
- Reseal roof and body seams at least once a year; water intrusion is the most common and expensive RV repair.
- RV tires age out before they wear out, so inspect for pressure and cracking monthly and replace roughly every 5 to 7 years regardless of tread.
- Winterize the plumbing system before the first freeze to prevent burst pipes and cracked fittings.
- Repack wheel bearings and inspect brakes annually on towables, and follow the chassis service schedule on motorhomes.
- McClain’s RV service departments across Texas and Oklahoma handle scheduled maintenance through the Keep On Campin’ program.
The core systems every RV owner must maintain
An RV needs maintenance in seven main areas: the roof and exterior seals, tires and wheel bearings, brakes, batteries and electrical, the plumbing and water system, appliances (furnace, water heater, fridge, air conditioner), and the engine or chassis on a motorhome. Neglecting any one of these leads to leaks, breakdowns, or safety issues, and roof and seal failure causes the most expensive damage of all.
Unlike a car, an RV combines a vehicle, a house, and a plumbing system in one unit, so it carries the maintenance needs of all three. The good news is that most of it follows a predictable calendar, and staying ahead of it costs far less than fixing water damage or a roadside failure.
Roof and seals: the most important maintenance
Inspect and reseal your RV roof and every exterior seam at least once a year, and check the roof visually every month during camping season. Sealant around vents, skylights, the air conditioner, and body seams dries out and cracks in the sun, and even a pinhole gap lets water into the walls and floor where rot spreads unseen.
Clean the roof two to four times a year with a cleaner made for its material (EPDM rubber, TPO, or fiberglass), and reapply self-leveling lap sealant wherever the old sealant is cracked, lifted, or discolored. If you catch a soft spot in the ceiling or a stain in a corner, treat it as urgent. Water damage that reaches the framing is one of the few problems that can total an RV.
Tires and wheel bearings
Check RV tire pressure before every trip and inspect for sidewall cracking monthly, because RV tires almost always age out before the tread wears down. Most manufacturers recommend replacing RV tires every five to seven years regardless of how they look, since the rubber degrades from UV exposure and sitting in one spot.
On travel trailers and fifth wheels, repack the wheel bearings with fresh grease once a year or roughly every 12,000 miles. Dry bearings overheat and seize, which can throw a wheel off the axle at highway speed. Keep tires covered when the RV is parked long term, and never exceed the load rating stamped on the sidewall.
Brakes, suspension, and towing hardware
Inspect brakes annually on any RV. Trailer electric brakes need the magnets, shoes, and drums checked and adjusted each year, and the breakaway battery tested. On a motorhome, follow the chassis maker’s brake and fluid schedule just as you would with a truck.
Grease the hitch or fifth-wheel pin box, inspect the safety chains and wiring harness, and check that the leveling jacks and slide-out mechanisms move smoothly and are lubricated. Slide seals should be cleaned and treated so they stay flexible and keep water out.
Batteries and electrical system
Test and clean your RV batteries at least twice a year. Corroded terminals and low electrolyte are the most common reasons an RV will not power up after storage. For flooded lead-acid batteries, check the water level and top off with distilled water; lithium and AGM batteries are sealed but still need a proper charge maintained during storage.
Exercise the generator on a motorhome or towable that has one, running it under load for about an hour each month to keep the carburetor and fuel system healthy. Check the shore power cord, GFCI outlets, and the converter or inverter for normal operation.
Plumbing and the water system
Sanitize the fresh water system at least once a year with a diluted bleach solution, and flush it thoroughly. Inspect for leaks under sinks and around the water heater, and keep the black tank flushed and treated so sensors read accurately and odors stay down.
Winterizing is the single most important seasonal plumbing task in Texas and Oklahoma, where hard freezes hit. Before the first freeze, drain the fresh, gray, and black tanks, bypass the water heater, and run RV antifreeze through the lines, or blow the lines out with compressed air. A single burst pipe behind a wall can cost more to repair than years of routine service.
Appliances: furnace, water heater, fridge, and A/C
Service your RV appliances before each camping season. Vacuum the furnace and water heater burner areas, clear wasp nests and debris from the exterior vents, and check the propane system for leaks with a soapy-water test or a detector. The absorption refrigerator needs its cooling fins cleaned and the exterior vent kept clear.
Clean or replace the air conditioner filters monthly in use and rinse the roof unit’s coils each season. Test the propane and carbon monoxide detectors, and note that RV LP and CO detectors expire, usually after five to seven years, and must be replaced, not just re-batteried.
RV maintenance schedule at a glance
| Interval | Tasks |
|---|---|
| Before every trip | Tire pressure, lights, brakes, hitch, fluid levels |
| Monthly (in use) | Roof visual check, tire inspection, A/C filters, generator run, battery check |
| Seasonally | Appliance service, roof cleaning, detector test, slide seal treatment |
| Annually | Reseal roof and seams, repack wheel bearings, brake inspection, water system sanitize |
| Before winter | Winterize plumbing, drain tanks, protect batteries |
| Every 5 to 7 years | Replace tires, replace LP and CO detectors |
What you can do yourself and what to leave to a shop
Most owners handle the routine items: checking tire pressure, cleaning filters, testing batteries, treating tanks, and inspecting the roof. Resealing seams and basic cleaning are within reach for a handy owner willing to get on the roof safely.
Leave brake service, wheel bearing repacks, propane system repairs, appliance diagnostics, and any suspected water damage to a certified RV technician. These involve safety systems and specialized tools, and a missed leak or a bad brake adjustment is far costlier than the service. If the RV is under warranty, using a factory-authorized service center also protects that coverage.
Where to get scheduled RV service in Texas and Oklahoma
McClain’s RV runs full service and repair departments and offers a maintenance program called Keep On Campin’ to keep owners on a regular schedule. With locations in Corinth (serving Denton), Fort Worth, Rockwall, Sanger, Kerrville, and Oklahoma City, most owners across North Texas, the Hill Country, and central Oklahoma have a service bay within reach.
McClain’s RV also runs a body shop for collision and water-damage repair, sells RV parts for owners tackling their own maintenance, and services the brands it carries, including Grand Design, Winnebago, Tiffin Motorhomes, Thor Motor Coach, KZ, Highland Ridge, Open Range, Renegade, and Grech. Whether you need an annual reseal, a bearing repack before a long haul, or full winterizing, booking service ahead of peak season means your RV is ready when you are.
Frequently asked questions
How often should you service an RV?
Service an RV on a layered schedule: check tires, brakes, and fluids before every trip; inspect the roof, filters, and batteries monthly during use; service appliances and treat slide seals each season; and complete a full annual service that includes resealing seams, repacking wheel bearings, and a brake inspection. Winterizing is required once a year before freezing weather.
How much does RV maintenance cost per year?
Annual RV maintenance typically runs a few hundred dollars for routine items like resealing, winterizing, and appliance service, and more if brakes, bearings, or tires are due. Costs vary by RV type, size, and whether you do the work yourself. The real savings come from prevention, since catching a roof leak early avoids water damage repairs that can reach thousands of dollars.
How often should RV tires be replaced?
Replace RV tires every five to seven years regardless of tread depth, because the rubber degrades from UV exposure and long periods parked in one spot. Inspect them monthly for sidewall cracking, uneven wear, and correct pressure. RV tires almost always age out before they wear out, so the date code on the sidewall matters more than the tread.
Do I need to winterize my RV in Texas?
Yes, winterize your RV in Texas and Oklahoma before the first hard freeze. Both states see freezing temperatures that can burst water lines and crack fittings, and a single frozen pipe behind a wall can cost more than years of routine maintenance. Drain the tanks, bypass the water heater, and run RV antifreeze through the lines or blow them out with compressed air.
What is the most important RV maintenance task?
Sealing the roof and exterior seams is the most important RV maintenance task. Water intrusion through cracked sealant is the most common and most expensive RV problem, because it spreads unseen into walls and framing where it causes rot. Inspect the roof monthly, reseal cracked or lifted sealant at least once a year, and treat any soft spot or ceiling stain as urgent.
Can I do RV maintenance myself?
You can handle most routine RV maintenance yourself, including tire checks, filter cleaning, battery testing, tank treatment, roof inspection, and resealing minor seams. Leave brake service, wheel bearing repacks, propane repairs, appliance diagnostics, and suspected water damage to a certified RV technician, since these involve safety systems and specialized tools. McClain’s RV service departments handle the technical work and stock parts for DIY owners.
