How Often Should You Service Your RV? A Seasonal Checklist for Ontario Owners

At minimum, once a year. If you're putting on serious mileage, every 3,000 to 5,000 km is the general rule most manufacturers publish. But mileage alone doesn't tell the whole story for Ontario owners, because our climate does things to an RV that a mild-weather state or province never has to deal with.

Here's the honest version of what "regular service" should actually look like if you're storing and driving your RV in Ontario, broken down by season rather than a single generic number.

Manufacturer Intervals vs. Ontario Reality

Coachmen and Keystone, like most manufacturers, publish general maintenance intervals based on mileage and engine hours. Those numbers are a reasonable baseline, but they're written for a national or continental audience, not specifically for a province with five-month winters, heavy road salt use, and long stretches of static storage.

In practice, that means Ontario owners often need two things a purely mileage-based schedule doesn't account for: a proper de-winterization every spring, and a proper winterization every fall, regardless of how many kilometers were actually driven that year. Skip either one and you're gambling with frozen plumbing or a battery that doesn't survive the winter.

The Ontario RV Service Rhythm

Spring (de-winterization)

This is non-negotiable. After months of sitting in freezing temperatures, your plumbing, seals, and battery need a full check before the first trip of the season. Skipping this is how people end up with a burst pipe or a dead fridge on day one.
What typically gets checked in spring:

• Water lines flushed of antifreeze and pressure tested for leaks
• Battery capacity and connections
• Propane appliances tested after months of disuse
• Tire pressure and condition after sitting stationary
• Roof and seal inspection for winter cracking
• Slide-out and awning mechanisms for stiffness

Early summer

A quick once-over after the first few trips of the season. Roads shake things loose that a winter of sitting still simply won't reveal. This is a good point to pair with a pre-trip inspection, checking tire pressure again, brakes, and slide mechanisms, and catching anything that came loose on the drive.

Mid-summer, for heavy users

If you're putting on real mileage over the summer, particularly with a Class A or a fully loaded travel trailer, a mid-season check isn't unreasonable. Oil changes (if applicable to your engine hours), a look at brake wear, and a general inspection catch issues before they turn into a roadside problem on a long weekend trip.

Late summer / early fall

If you've had a full season of use, this is a good point for an oil change, generator service, and a look at the AC and appliances before storage prep starts in earnest. This is also when it's worth addressing any small issues you've been putting off, since fixing them before winter storage is easier than dealing with them frozen solid come spring.

Fall (winterization)

Draining the water system, adding antifreeze where needed, and protecting the unit against freeze damage over the winter months. Miss this one and you're looking at cracked pipes, which is one of the more expensive repairs to fix later. We've covered the full process in RV winter storage tips. This step alone prevents more expensive damage than almost anything else on this list.

Quick Reference: Service Points Through the Year

This table is a simplified version of what we walk owners through during a consultation, since every RV's exact needs vary a bit based on age, usage, and how it's stored. But it's a solid starting point if you're trying to map out a realistic year rather than guessing at what's actually necessary.

What Changes If You Barely Drive It

Even if your RV sits in storage most of the year and only comes out for a couple of trips, it still needs the spring and fall service points. Seals dry out and crack whether or not the unit moves. Batteries drain, sometimes faster than owners expect, especially without a maintainer connected. Rodents find their way into unused units more often than people assume, particularly if food residue or fabric nesting material was left behind from the last trip. "Low mileage" doesn't mean "low maintenance" when it comes to an RV sitting through an Ontario winter.

What Happens If You Skip a Season

Skipping spring de-winterization risks running propane appliances or plumbing that was never properly checked after months of freezing, sometimes with damage that isn't obvious until you're already using the system.

Skipping fall winterization is the bigger risk of the two. Water left in lines through a winter that dips well below freezing for weeks at a time will very likely cause a crack somewhere, and you often won't discover it until spring when you turn the water back on and find a leak you can't immediately locate.

Skipping a season doesn't always cause an immediate, visible problem. That's actually part of what makes it risky. The damage from a missed winterization might not show up until the pipe fails months later, at which point tracing the source of a leak inside wall cavities and cabinetry is its own job.

Signs You Shouldn't Wait For the Next Scheduled Visit

If something feels off between your regular service points, don't wait it out until the next seasonal check rolls around. Unusual noises, slow starts, water stains, and anything electrical are worth a call sooner rather than later.

Why Service Records Matter for Warranty and Resale

Keeping up with seasonal service does more than prevent damage. It also builds a documented history that matters in two situations most owners don't think about until they need it.

If you ever need to make a warranty claim on a Coachmen or Keystone unit, having records showing the RV was serviced according to a reasonable schedule strengthens your case. Manufacturers can and sometimes do push back on claims if there's no evidence of basic maintenance, particularly for components that fail due to neglect rather than a manufacturing defect.

The second situation is resale. A buyer looking at a used motorhome will almost always ask about service history, and a stack of invoices showing consistent spring and fall service is a meaningful selling point. It signals the RV wasn't left to sit through winters unprotected, which is exactly the kind of damage a buyer is trying to avoid inheriting.

Building a Realistic Annual Schedule

For most Ontario owners, a realistic annual rhythm looks like this: spring de-winterization and full inspection in April or May, a light mid-season check if you're a heavy user, and fall winterization in October or November before temperatures drop consistently below freezing. That's two guaranteed appointments a year at minimum, with a third optional one depending on how much you actually drive.

Booking these ahead of the seasonal rush, rather than trying to get in right when everyone else wants an appointment, tends to save both time and stress. Shops get busy in April when the whole province wants to de-winterize at once, and again in October when everyone remembers winterization at the last minute.

Ready to Book Your Seasonal Service?

Whether it's your spring de-winterization or fall winterization coming up, getting on the schedule early beats scrambling during the seasonal rush. Book your appointment with Motor Home Travel here.

FAQ

Do I need to service my RV even if I only use it a few times a year?

Yes. Seasonal changes affect the RV whether it's being driven or not. The spring and fall service points matter regardless of mileage, since freeze damage and battery drain happen on their own schedule, not yours.

What happens if I skip a winterization?

Frozen water lines can crack, and that repair is almost always more expensive than the winterization itself would have been, sometimes significantly so if the damage isn't caught right away.

Can I book both a spring and fall service in advance?

Yes, and it's worth doing. Booking ahead of the seasonal rush means you're not scrambling in April when everyone else is trying to get their RV road-ready at once. Book a service appointment here.

Is mileage or time the bigger factor for RV service intervals?

Both matter, but in Ontario, calendar-based seasonal service (spring and fall) tends to matter more than mileage for most owners, since freeze-thaw damage happens regardless of how much the RV was actually driven.

How do I know if my battery survived the winter?

A technician can test capacity during your spring service. Visually, corrosion on the terminals or a battery that won't hold a charge after a full recharge cycle are both signs it may need replacing.

Should I winterize my RV even if I'm storing it in a heated garage?

If the storage space stays reliably above freezing all winter, the risk is lower, but most owners don't have that guarantee, and it only takes one cold snap during a power outage to cause damage. Winterizing is the safer default.

Do newer RVs need service as often as older ones?

Yes, the seasonal points still apply regardless of age. Newer units may need less repair work overall, but the de-winterization and winterization steps aren't optional just because the RV is new.

What's the minimum service an RV absolutely needs each year?

At the very least, spring de-winterization and fall winterization. Everything else on this list adds value and catches issues early, but those two points are the ones that prevent the most expensive kind of damage.

Can I do the seasonal service myself to save money?

Basic steps, sure, if you're comfortable with the process. But pressure testing plumbing properly and inspecting roof seals thoroughly are easy to get wrong, and a missed step defeats the purpose of doing the service at all.

How far in advance should I book spring service?

As early as possible, ideally in February or March before the seasonal rush hits. Shops fill up quickly once the weather starts warming and everyone remembers their RV at the same time.