Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Ontario
Roof replacement in Ontario, CA typically costs between $11,500 and $28,000 for a full tear-off and re-roof, depending on the material, the condition of the decking underneath, and whether the house sits in one of the older tract neighborhoods off Holt Blvd or in the newer infill around the 91761 and 91764 ZIP codes. That’s the honest answer, and it’s what we tell every Ontario homeowner who calls us before we ever talk about signing a contract.
Our crews work throughout Ontario every week – from the 91758 corridor near the 10 Freeway up through the 91762 neighborhoods near Vineyard Ave – so we know exactly what these roofs look like when they come off. Barnwood Roofing has never been a company that shows up with a one-size-fits-all pitch. We’ll tell you if a repair is enough, and if a replacement makes sense, we’ll walk you through why and what it costs before you spend a dime. Call (855) 382-1073 and we’ll schedule a look at your roof.
Why Barnwood Roofing Is Ontario’s Preferred Roof Replacement Company
Ontario homeowners have dealt with plenty of roofers who push a full replacement the moment they step off the ladder. That’s not how we operate. Inspection first, recommendation second – and the inspection is a legitimate standalone service we offer, not a sales funnel. When Ruben Calloway walks an Ontario roof, he’s looking at what’s actually failing: heat-baked shingles, Santa Ana wind damage at the edges, dry-rotted fascia, decking that’s given up after 60 years of inland sun. If a repair buys you five more years, that’s what we’ll recommend.
We source materials from seven manufacturers – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – which means our recommendation isn’t driven by whatever’s sitting in the warehouse. Seven brands, one honest recommendation. That matters in Ontario, where a heat-resistant architectural shingle might serve a 1950s tract home better than a premium designer line would, and where a flat-roof addition off the back of a mid-century ranch needs a TPO assembly spec’d for 100°F summers. We don’t hand off roofing work to subcontractors, and we don’t do “repair now, replace never” math. Our crew does the inspection, the repair, and the replacement under one roof.
Styles & brands we work with
New Roof Installation in Ontario
New roof installation in Ontario usually means one of two things: a complete tear-off on an older home where the original 3-tab shingles or concrete tile have lived past their service life, or a fresh roof on new construction, especially the infill builds going up in the 91761 and 91764 ZIP codes. A full new roof on a 1,500 to 2,200 square foot Ontario home runs roughly $12,000 to $24,000 depending on material choice, decking replacement, and whether the house has a simple gable profile or multiple hips and valleys.
For most mid-century Ontario homes, the job starts with getting down to the decking so we can see what 60 years of heat has done to it. In the tracts off Vineyard Ave, we regularly find dry-rotted fascia and crumbling original underlayment that a reroof-over would have hidden forever.
Tear-Off and Decking Inspection
We don’t quote a new roof without looking at the decking underneath the old one. On an Ontario home built between 1955 and 1980, that decking is often 1×6 planks that have been baked and re-baked through decades of 100°F summers. If the wood is sound, we keep it. If it’s not, replacing it now is cheaper than discovering the problem after the new shingles go down.
Heat-Resistant Material Selection
Ontario’s inland heat punishes asphalt shingles faster than coastal LA weather does. We spec architectural shingles with higher wind ratings and better UV resistance for most Ontario homes, and we explain the cost difference between a basic 3-tab and a 130-mph-rated architectural line so you can decide what fits your budget. The right material for your roof, not just what we stock.
Reroofing in Ontario
Reroofing in Ontario splits into two distinct jobs: a reroof-over, where we lay new shingles over the existing layer, and a full reroof, where we tear off and start fresh. Most Ontario homes with original 3-tab composition shingles are not candidates for a reroof-over because the old shingles have heat-baked into a brittle, curling state and won’t hold fasteners. A reroof-over on a typical Ontario ranch runs $8,500 to $14,000, while a full reroof with tear-off runs $11,500 to $28,000 depending on material and decking condition.
Here’s the thing about reroofing in Ontario: the wind is the problem, not just the sun. Santa Ana gusts funneling through the Cajon Pass hit roof edges and ridges first, which is why we reinforce the starter strip and drip edge on every reroof we do in Ontario. A cheap reroof that skips that step will fail at the edges within a decade.
Edge Reinforcement and Wind Uplift
We use hot-dip galvanized fasteners and a reinforced starter strip at the windward edge on every Ontario reroof. That’s not an upgrade we upsell. It’s the spec this city needs, and we don’t cut the corner on it.
When a Reroof-Over Makes Sense
Some newer Ontario homes in the 91761 ZIP with a single layer of shingles in decent shape are fine for a reroof-over, and we’ll tell you if that’s the case. But if the original underlayment under concrete tile has crumbled, the tile has to come off and the underlayment gets replaced. We won’t put new material over a foundation that’s already failed.
Trusted Brands We Service in Ontario
We work with seven manufacturer lines so a Ontario homeowner gets the product that fits their roof, not the product that fits our inventory. That means GAF architectural shingles on one job, CertainTeed on another, Owens Corning or IKO where the price point and performance line up best. We keep common materials and fasteners stocked for the Ontario market, which means we’re not waiting on a shipment from Texas when your roof is opened up and the Santa Ana forecast starts to turn. Roof Replacement done right starts with using the product that actually belongs on the house.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Ontario Homes
- Heat-baked 3-tab shingles off Holt Blvd and Vineyard Ave: Original 3-tab shingles from the 1950s and 1960s turn brittle in Ontario’s summers. By the time we’re called out, wind-driven debris punches straight through them instead of deflecting.
- Santa Ana wind damage at edges and ridges: The gusts that come through the Cajon Pass don’t peel roofs from the middle. They tear at drip edge and starter strip first, and if those were installed with cheap coastal-spec fasteners, they corrode at the exposed edges within a decade.
- Dry-rotted fascia and crumbling underlayment under concrete tile: Decades of heat cycling make the tile and the original felt fail together. We find fascia boards along the windward rake that crumble when you touch them, and underlayment that’s turned to dust.
- Attic heat buildup from poor ventilation: Inland Ontario homes with original ridge and soffit ventilation bake their attics every summer. A replacement is the right time to fix the venting, and it’s the difference between an attic that holds 140°F and one that actually releases heat.
Pricing for Roof Replacement in Ontario, CA
Here are the numbers we quote for Ontario right now. A basic reroof-over on a 1,800 square foot ranch runs $8,500 to $14,000. A full tear-off with architectural shingles runs $11,500 to $20,000. A concrete tile replacement with new underlayment, repaired fascia, and hot-dip fasteners on a mid-century Ontario home runs $18,000 to $28,000. The spread comes down to decking condition, roof complexity, and whether we’re dealing with a simple gable or a multi-hip profile with valleys that need ice and water shield. If your roof has a flat section – common on Ontario additions and carports – a TPO or modified bitumen system adds $6 to $10 per square foot. We give you a written line-item quote before work starts, and the price we quote is the price you pay. No change orders when the roof comes off and the decking is worse than expected, because we inspect it before we quote. Call (855) 382-1073 for an exact quote – estimates are free.
We Also Serve Cities Near Ontario
Our crews cover all of Roof Replacement in Ontario and the surrounding communities, including Montclair, Upland, Chino, and San Antonio Heights. If you’re in one of those cities and dealing with a failed roof after a Santa Ana blow, we’re already working in the 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
Ontario’s inland heat and Santa Ana winds attack roof edges differently than the salt air and marine layer do in LA. Coastal-spec fasteners corrode at exposed drip edges and starter strips within ten years here because the wind-driven grit and dry UV exposure work them harder. We specify hot-dip galvanized or stainless fasteners at every windward edge. A cheap roof that uses coastal-grade hardware costs more within a decade because the edges fail first, and that’s exactly where the wind pulls. Call (855) 382-1073 and tell us what you’re seeing, and we’ll tell you straight if a repair holds or a replacement makes sense.
If the original underlayment under the tile has crumbled – and on most 1960s Ontario tract homes it has – the tile has to come off so we can replace the felt and inspect the decking. A reroof-over that skips that step hides dry-rotted fascia and failing decking that will cost far more to fix later. We’ll assess it before we recommend anything. Inspection first, recommendation second, and the inspection is a standalone service you can book without any obligation to proceed.
Yes, but only if the ventilation gets fixed at the same time. We’ve redone Ontario roofs where the attic dropped from unbearable to tolerable the same summer because we corrected ridge and soffit venting while the roof was open. A new roof with the original venting still bakes the attic. A new roof with proper intake and exhaust lets the heat out, and that’s the difference between a house that cools down by evening and one that radiates heat all night.
Line up the line items: decking inspection, underlayment type, fastener spec, drip edge and starter strip reinforcement, ventilation, and whether the material is a 3-tab or an architectural shingle with a real wind rating. A lower Ontario bid often means no edge reinforcement and no decking repair contingency, which is why it looks cheaper now and costs more inside ten years. We give you a written line-item quote so you can compare apples to apples with any other contractor in the city.
Yes, when they’re rated for it and installed with reinforced edges. We spec architectural shingles with 110 to 130 mph wind ratings for Ontario homes because the Cajon Pass wind uplift is real, and we install them with a reinforced starter strip at the windward edge. A properly installed architectural shingle roof handles Ontario’s wind better than a cheap 3-tab ever did – and the warranty stays intact because it was installed to spec. Call (855) 382-1073 to schedule a free estimate, and we’ll walk your roof with you before we ever talk price.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving Ontario and the Inland Empire with inspection, repair, and replacement roofing.