RV Roof Repair in Ontario, CA
Ontario is a working town. Trucks rumble along Mission Boulevard, freight moves through ONT at all hours, and the wind off the Cajon Pass carries enough freeway dust to coat anything left outside for a weekend. That same wind, that same dust, and the long valley summer are hard on RV roofs. If you store your rig at a yard near the 10/15 interchange or in the driveway off Euclid Avenue, your roof has been taking a steady beating you probably haven't seen in months.
That is usually how the story starts. You head out for a long weekend at Lake Perris or up the 15 to Big Bear, you climb up for a quick look, and there is a soft spot near the front cap or a hairline split running along the seam above the slide. By then water has already had a season or two to find its way in.
What Ontario weather does to an RV roof
Sun is the obvious one. The sealants on rubber, fiberglass, and aluminum roofs all break down faster in Inland Empire heat than the manufacturer's bench tests assume. UV breaks down the polymers, the lap sealant pulls back from the screws, and a pinhole opens. Add the freeway grit ground in by the wash mitt every weekend, and the protective layer thins out faster than most owners expect.
Then there is the wind. Santa Ana season pushes branches, palm fronds, and roof debris from neighboring carports across stored rigs. We see punctures from things owners never noticed land. We also see seams worked loose by the constant flexing on rigs parked broadside.
The third factor is storage. Most RV roofs in Ontario sit unattended for weeks at a time. A small leak in March goes undetected through the summer, and by the fall trip the underlayment is already saturated.
What an honest RV roof repair in Ontario looks like
When you call, the first question we ask is what you are actually seeing. A water stain on the ceiling. A bubble in the wallpaper. A musty smell after the rig has been closed up. Each of those tells us something different about how long the leak has been working and where it likely entered.
We do not start with a quote. We start with an inspection. Bring the rig to the shop in Chino, an easy run from Ontario via the 60 or the 10, and we will get up on it, run a moisture meter along the seams, and pull back any soft sealant to see what the substrate underneath is doing. If the damage is cosmetic and contained, we will tell you that. If the OSB or aluminum framing is gone, we will tell you that too. Either way, you leave knowing what you are dealing with.
Why this work happens under our roof, not subbed out
McBride's has been doing RV repair since 1967. We are RVIA certified and PPG certified, and our 40-foot paint booth is built to handle full-size Class A rigs all the way through coach finish. That matters for roof repair because the worst roof jobs are the ones where the leak has compromised the front or rear cap, and the only honest fix is to pull the cap, repair the substrate, and refinish to match. Plenty of shops will say they can do that and then send the cap out for paint somewhere else. We finish it under the same roof the rig is sitting under.
Our techs are also Spartan certified, Cummins Onan certified, Aqua-Hot certified, and Dometic certified. Why does that matter for a roof job? Because while we have the rig open, we will check the A/C condenser drain pan, the vent assemblies, and the seal around the Aqua-Hot exhaust if you have one. Catching one of those before it fails saves you a second trip.
The insurance side most Ontario owners don't expect
If your roof damage came from a falling branch, a low-clearance hit, or any covered event, your policy probably owes you more than you think. We process claims with National General, Progressive, AAA, and GEICO regularly. We are recommended by all four. That means we know what their adjusters look for, what documentation they want, and how to write the estimate so the rig comes back the way it left. Insurance estimates are not binding until the carrier approves them, but we run the back-and-forth on your behalf rather than handing you the phone.
We pull the photos. We submit the estimate. You drive in once and pick up a finished rig.
A short FAQ before you call
How long does an RV roof repair take? A localized seam reseal can be a same-day job. A full membrane replacement on a 35-foot Class A is usually a week to ten days. Hidden water damage adds time, because we will not close the roof back up over wet substrate.
Can you match the original finish on a fiberglass cap? Yes. PPG advanced color-matching is what the booth is set up for. We have done this on rigs from the late nineties through current model years.
Should I keep driving the rig with a small leak? No. Even a small leak can saturate insulation in a long drive. Call us first.
Hear From Our Satisfied Customers
Call us before the next storm
Call McBride's RV Repair & Paint at (909) 627-7566 or stop by the shop in Chino. We are an easy run from Ontario via the 60 or the 10.
We specialize in RV roof repair and will walk you through what is actually wrong, what it will cost, and what your insurance will cover before any work begins.