Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Replacement Across Ontario
Roof replacement in Ontario, CA means something specific here: a lot of 1980s and 1990s tile roofs are hitting the end of their underlayment life at the same time. The tile looks fine. The felt underneath is gone. A full tear-off and re-roof in Ontario typically runs $12,000-$28,000 depending on size, pitch, and what we find once the old roof comes off. We’ve worked these exact roofs for years, and we’ll give you a written price before anything starts. Call (424) 766-4937 for a free estimate.
Our crew knows Ontario’s housing stock because we see it every week: stucco tract homes off Vineyard Avenue, older bungalows along Euclid, newer south-side subdivisions. That local knowledge means we already have a good read on what’s under your tile before we set the first ladder.
Why Birchbark Roofing Is Ontario’s Preferred Roof Replacement Company
Erik Lindgren leads our Ontario roofing work with a simple expectation: the house should look better after we leave than it did before we arrived, and the homeowner should never wonder what a charge was for. That shows up in how we run jobs here. Shoe covers at the front door. Drop cloths through the hallway if we need interior access. A photo of the completed clean-up before the crew pulls away. These are not add-ons; they’re how every Birchbark job in Ontario runs.
We’re part of the Cedarwell family of independent local roofing businesses, which means we hold our Ontario work to a written standard: the Cedarwell Care Promise. Clean up like it’s our own home. Ask before we move anything. Respect quiet hours. Explain the price before the work. And every Roof Replacement we complete carries the 365-Day Done Right Promise. If the work isn’t right, we make it right.
A live person answers every call 24/7. You won’t get a voicemail tree when you call (424) 766-4937 about your Ontario roof, even at 9pm on a Sunday.
New Roof Installation in Ontario
New Roof Installation in Ontario usually means one of two situations: you’re building new construction, or you’re tearing an old roof down to nothing and starting fresh. The latter is what most Ontario homeowners face when their 1990s tile roof finally gives out. A full new roof installation in Ontario typically runs $14,000-$28,000 depending on square footage, roof pitch, and material choice (asphalt shingles on the lower end, concrete tile or architectural shingles on the upper end). You’ll see your exact number in writing before we order a single bundle.
Tear-Off and Rebuild
We strip everything to the decking, inspect every sheet, and replace anything that’s soft, water-damaged, or heat-cycled. That’s the step where Ontario’s 100°F+ summers show their work: decking that looks fine from the attic can crumble at the fastener once it’s exposed. We re-deck first, then lay new underlayment, flashing, and your chosen roofing material over a clean, solid base.
New Construction Roofing
For new builds in Ontario, we coordinate with your contractor or builder so the roof goes on before drywall starts. Our crews know Ontario’s permitting process and work with the city’s inspection schedule. We use the same written-price standard on new construction that we use on re-roofs, so your builder’s budget doesn’t move mid-job.
If you’re pricing a new roof in Ontario, call (424) 766-4937. The estimate is free, and you’ll get the number on paper.
Reroofing in Ontario
Reroofing in Ontario almost always comes down to one question: is the underlayment still doing its job? With the city’s large inventory of 1980s and 1990s tile roofs, the answer is frequently no. The tile survives the heat; the #15 felt underneath does not. Reroofing here typically runs $12,000-$22,000 depending on what the tear-off reveals. We’ll write that price down before any work starts, and if we find rotted decking or rusted flashing once the old roof is off, we price those fixes in writing before we touch them.
Full Tear-Off Reroofing
We remove the old tile or shingles, inspect the decking, replace any soft panels, and install new underlayment before putting the roof back together. For Ontario’s tile homes, we often reuse the original concrete or clay tile if it’s still sound, which saves a lot of money versus buying new tile. The new underlayment is what actually stops the leaks.
Overlay vs. Tear-Off
We don’t recommend overlaying a new roof over an old one in Ontario’s heat. The extra layer traps heat and shortens the life of whatever you put on top, and it hides decking damage until it’s much worse. A tear-off costs more up front, which is what we recommend for Ontario homeowners.
Trusted Brands We Service in Ontario
We install and service roofing systems from GAF, Atlas, and Tamko, along with other major manufacturers. For Ontario’s tile-heavy housing stock, we keep underlayment, flashing, and fasteners stocked locally so we aren’t chasing parts when your roof is open. Whether you want architectural asphalt shingles on a Euclid Avenue bungalow or a full tile re-roof on a 1990s Vineyard tract home, we’ll put the right material on and stand behind it with the 365-Day Done Right Promise. Call (424) 766-4937 and we’ll walk through which brand fits your home and budget.
Common Roof Replacement Problems We See in Ontario Homes
- Powdered underlayment under intact tile. Ontario’s 1980s-90s tract roofs were built with #15 felt underlayment that bakes to dust after three decades of 105°F+ summers. The tile looks fine, but the waterproofing layer is gone, and leaks show up as ceiling stains after the first real rain.
- Heat-cycled decking and rusted flashing. Once we tear off, we often find soft decking panels along ridges and valleys and flashing that has rusted through at penetrations. These are exactly the surprises that need to be priced in writing before we proceed.
- Santa Ana wind damage. Ontario’s periodic Santa Ana events peel up tile and flashing that was fastened to the original boom-era spec. Reinstalling over old underlayment just resets the same 30-year clock.
- Multiple layers hiding structural issues. Some older Euclid Avenue and 4th Street bungalows carry two or even three layers of composition shingles. Tearing those down often reveals decking problems that couldn’t be seen from the attic.
Pricing for Roof Replacement in Ontario, CA
A full roof replacement in Ontario typically runs $12,000-$28,000. A basic re-roof with architectural asphalt shingles on a single-story tract home lands closer to $12,000-$16,000. A two-story tile re-roof with full tear-off, re-decking, and new underlayment often lands between $18,000 and $26,000. What moves the number: roof size and pitch, whether the existing tile gets reused, how much decking needs replacing, and whether the permit pulls code upgrades into scope. You’ll get your exact price in writing before we order material. Call (424) 766-4937 to schedule a free estimate.
We Also Serve Cities Near Ontario
While this page covers Roof Replacement in Ontario, our crews work regularly in Montclair, Claremont, Upland, and Rancho Cucamonga too. If you’re just outside the city line, call (424) 766-4937 and we’ll let you know if we cover your neighborhood.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Replacement in Ontario
The leak is almost never the tile. Ontario’s 1980s and 1990s tract homes were built with #15 felt underlayment that breaks down after 30-plus years of Inland Empire heat cycling, turning to powder beneath the tile. The tile looks intact because it is; the waterproofing layer is gone, and water finds its way to ceiling drywall after a good winter storm. The fix is a full tear-off, new underlayment, and reinstallation of the tile. Call (424) 766-4937 and we’ll inspect it.
Sometimes, yes, and that’s a good thing to know before you sign. Once the roof is open, an Ontario inspector can flag undersized or heat-damaged framing, rotted fascia edges, or missing fire blocking that wasn’t visible before. We handle this by writing allowances into your contract up front so any permit-triggered repair is priced and approved in writing before we proceed. No mid-job change-order fights.
We price them in writing before we touch them. If we find soft decking, rusted flashing, or framing issues after tear-off, you get a written line item with the cost, and you approve it before we proceed. We don’t order material or start repairs on a handshake. That’s how Erik Lindgren runs every Ontario job, and it’s the only way to keep a re-roof from turning into a runaway budget.
Reroofing means removing the old roofing material down to the decking and installing new underlayment and roofing over the existing structure. A new roof installation can mean the same thing, but it also includes new construction where there was no roof before. In practice, most Ontario homeowners get a full tear-off reroof, and the terms end up meaning the same thing for a 1990s tract home. Call (424) 766-4937 and we’ll tell you exactly what your home needs.
We give you a written, line-item price that breaks out material, labor, decking allowance, permit costs, and disposal. That means you can set our bid next to another contractor’s and see exactly where the differences are. You don’t have to guess what’s behind a lump-sum number. Call (424) 766-4937 for a free, written roof replacement estimate in Ontario.
Written by Erik Lindgren, Owner at Birchbark Roofing, serving Ontario and the Inland Empire. Part of the Cedarwell family of roofing companies since 2000.