Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Ontario
Roofing in Ontario, CA usually means one of two things: a leak you can’t see from the ground, or a tile roof that looks fine but isn’t. Most residential roof repairs in Ontario run between $400 and $1,800 depending on what’s actually failing under the surface. A full re-underlayment on a 1990s tract home typically lands between $12,000 and $22,000. Birchbark Roofing has seen enough of Ontario’s 1980s and 90s subdivisions to know exactly where those failures hide, and we’ll give you a written price before any work starts. Call (424) 766-4937 and a live person answers, day or night.
Why Birchbark Roofing Is Ontario’s Preferred Roofing Company
Ontario homeowners don’t call us because their roof looks bad. They call because water is showing up where it shouldn’t be, and the roof itself still looks fine from the street. That’s the signature problem in this city’s housing stock, and our Roofing Company team has walked enough Creekside and Colony Park roofs to know what’s happening underneath the tile. We’re part of the Cedarwell family of roofing companies, a network that’s been operating since 2000 with each location independently owned and operated.
Every tech who steps onto an Ontario roof is background-checked and uniformed. You’ll know who’s at your door before they climb the ladder. We bring shoe covers and drop cloths on every visit, use pet-safe products wherever there’s a choice, and send you a photo of the completed clean-up before the crew leaves. The 365-Day Done Right Promise covers every repair and replacement we perform. If it’s not done right, we make it right. Written in the price, written in the guarantee, written where you can see it.
Roofing Contractor in Ontario
Roofing Contractor work in Ontario is different from coastal work, and that difference comes down to what the heat does to materials. A roofing contractor in Ontario is really managing a thermal problem: 100°F-plus summers, UV exposure that bakes membranes, and sudden winter rain events that test every seam. The tile on a 1990s Ontario roof often outlasts the felt underneath it by a decade or more. So the contractor’s real job is knowing when the tile is fine and the system beneath it is not.
Underlayment and Flashings
We see more failed underlayment in Ontario than broken tile. The #15 felt installed during the 1980s and 90s tract boom turns brittle and powdery after 25 to 35 years of extreme heat cycling. Flashing at penetrations rusts out when it isn’t stainless or hot-dip galvanized. We specify synthetic underlayment and stainless hardware on every Ontario job because the cheap inland spec fails at the penetrations and drip edge long before the tile does.
When a Roofing Contractor Is Needed
Call us when you see water stains on ceilings, when granules collect in gutters, or when a Santa Ana wind event lifts tile. Call us before you see any of that if your home is from the 1980s or 90s and still has its original underlayment. A written price comes before any work starts, always. Most roofing contractor visits in Ontario for inspection and minor repair run $250 to $600.
Roof Inspection in Ontario
Roof Inspection in Ontario is where we earn our keep, because most Ontario roof failures aren’t visible from the ground. A visual inspection from the street tells you almost nothing about a 1990s tile roof. Our Roof Inspection in Ontario involves walking the tile, checking the valleys and penetrations, and getting eyes on the underlayment wherever accessible. We look for what the heat has done, not just what the wind has broken.
What We Check
We check underlayment condition at the eaves and in the valleys, where thermal expansion opens seams first. We check flashing at pipe boots, skylights, and chimneys for rust and separation. We check for lifted or cracked tile from Santa Ana wind events, especially on the western and northern exposures that take the brunt of those gusts.
Inspection Cost and Report
A roof inspection in Ontario typically costs between $250 and $450. You get a written report, photos, and a written price for any repairs we recommend. No pressure, no handshake estimates. If you’re buying or selling a home in a Creekside or Colony Park subdivision, a roof inspection before closing is the cheapest way to avoid inheriting someone else’s powder-felt problem.
Trusted Brands We Service in Ontario
We work with materials from GAF, CertainTeed, Atlas, and Tamko, among others. For Ontario’s tile-heavy housing stock, that matters: we stock and source underlayment, flashing, and fasteners that are spec’d for Inland Empire heat, not coastal moisture. That means stainless hardware, synthetic membranes, and ice and water shield in the valleys. If your Ontario home needs a specific brand matched to your existing roof, we can source it fast and price it in writing before any work begins. We don’t stock parts for coastal conditions and hope they hold up here; we spec for 105°F summers and sudden winter downpours because that’s what Ontario actually delivers.
Common Roofing Company Problems We See in Ontario Homes
- Powdered underlayment under intact tile. The #15 felt from Ontario’s 1980s and 90s building boom has disintegrated under decades of 100°F-plus cycling. Tile looks fine from above; the membrane underneath is dust.
- Rusted flashing at penetrations. Non-stainless fasteners and non-galvanized flashing rust out early in Ontario’s heat-and-UV cycle. Pipe boots and drip edge fail long before the tile does.
- Santa Ana wind damage. Seasonal wind events peel up aging or improperly fastened tile throughout the city. Western and northern exposures get hit hardest.
- Leaks in valleys and at eaves. Thermal expansion opens seams where two roof planes meet. Without ice and water shield in the valleys, a concentrated winter rain event finds every crack at once.
Pricing for Roofing Company in Ontario, CA
Ontario roof pricing is driven by the vintage of your home and what’s actually failed underneath. A standard roof inspection runs $250 to $450. Minor repairs like re-sealing a pipe boot or replacing a few cracked tiles run $400 to $800. Flashing replacement around a chimney or skylight typically lands between $800 and $1,800. A full tear-off and re-underlayment on a 1990s tract home, including new synthetic underlayment, ice and water shield in the valleys, and reset tile with new flashing, runs $12,000 to $22,000 depending on square count and decking condition. If the decking has softened from years of leaks, that adds $75 to $110 per sheet of plywood. You’ll see your exact number in writing before any work starts. Call (424) 766-4937 for a free estimate.
We Also Serve Cities Near Ontario
Birchbark Roofing serves Roofing Company in Ontario and the surrounding communities, including Montclair, Claremont, Upland, and Rancho Cucamonga. Homes in those cities share Ontario’s housing vintage and heat cycle, so the same underlayment and flashing failures show up there too. If you’re just over the city line, we’ll coordinate scheduling from our Inland Empire office and send a crew that knows your neighborhood’s roof profile.
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 Roofing Company in Ontario
The #15 felt underlayment installed during Ontario’s 1980s and 90s tract-home boom has likely turned to powder after 30-plus years of 105°F heat cycling. The tile sits solidly in place, but the waterproof layer beneath it is gone. The only permanent fix is a full tear-off, new synthetic underlayment, and resetting the tile. In the Creekside neighborhood off Vineyard Avenue, we found exactly this: a homeowner with a water stain on the master bedroom ceiling and no broken tile visible from the ground. The felt underneath was dust. We tore off the tile, replaced softened decking, installed new synthetic underlayment and ice and water shield in the valleys, and reset the tile with new flashing and drip edge. Call (424) 766-4937 to schedule an inspection.
If your concrete or clay tile is structurally sound, you replace just the underlayment and flashing. Ontario’s tile itself survives the heat remarkably well; it’s the felt beneath that fails. A full tile replacement is usually unnecessary unless the tile is cracked, spalling, or you want a different look. Re-underlayment runs $12,000 to $22,000 on a typical Ontario tract home. A full tile replacement with new underlayment can double that. We’ll tell you which one your roof actually needs after a $250 to $450 inspection, and you’ll get the number in writing before anything is torn off.
Coastal-spec roofing is built for moisture, fog, and mild temperatures. Inland-spec roofing, what Ontario actually needs, is built for thermal expansion, UV exposure, and sudden concentrated rain. The inland spec uses stainless or hot-dip galvanized fasteners that won’t rust out in the heat, synthetic underlayment that won’t turn to powder, and ice and water shield in the valleys where expansion opens seams. The cheap inland spec, which is what most 1990s Ontario homes got, fails at the penetrations and drip edge within a decade or two. The coastal-spec looks similar on paper but costs less up front. It costs far more later, because you’ll be re-flashing and re-underlaying long before you should have to.
Santa Ana winds peel up aging or improperly fastened tile, especially on western and northern exposures where gusts hit hardest. Lifted tile exposes the underlayment beneath, and once that membrane is compromised, the next rain event does the damage. After a strong Santa Ana event, walk the perimeter of your home and look up at the roofline. If you see tile edges lifted or shifted, call (424) 766-4937 for an inspection before the rain arrives. Re-setting a few tiles and re-securing them with proper fasteners is a small fix now; re-decking a water-damaged roof later is not.
A square is 100 square feet of roof area, and most 1980s and 90s tract homes in Ontario run between 20 and 35 squares depending on the floor plan and roof pitch. The square count drives the bid: more squares means more underlayment, more fasteners, more labor. But the square count alone doesn’t tell you the real cost. Decking condition, valley count, and penetration count all change the final number. That’s why we give you a written line-item price after walking the roof, not a phone quote based on square footage you measured yourself. Call (424) 766-4937 and we’ll walk your roof together, count the squares, check the decking, and put the number in writing.
Written by Erik Lindgren, Owner at Birchbark Roofing, serving Ontario, CA.