Roof Replacement in Ontario — Written Price, Workmanship Warranty

Fast, Reliable Roof Replacement Across Ontario

Roof replacement in Ontario, CA typically runs $9,500 to $18,000 for a standard single-family home, and the biggest factor isn’t the material cost, it’s whether the installation actually meets the wind-uplift standards this city demands. Ontario sits in the Santa Ana wind corridor where 60-80 mph dry gusts off the Cajon Pass strip aged shingles and tile every fall. We know these neighborhoods, we know the housing stock, and we know what a compliant roof here has to include. Call (866) 850-2496 for a free estimate and we’ll walk the roof with you before any numbers get discussed.

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Why Windmill Roof Repair Is Ontario’s Preferred Roof Replacement Company

We’re led by Ruben Ochoa, whose crew has replaced roofs across Ontario’s older cottage-style homes near downtown and the stucco tract subdivisions off the 60 and I-15. Homeowners here tell us the same thing: other roofers quoted them one brand and one option. We don’t work that way. We carry seven major shingle brands, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so the recommendation is driven by what your roof actually needs, not what we’re incentivized to sell.

Ontario homeowners also value that we offer roof inspections as a standalone service. You can get a professional assessment of your roof’s condition without signing anything or agreeing to work you don’t need. That’s the Windmill approach: repair when you can, replace when you must. Our Roof Replacement team documents everything, from the tear-off through the final inspection, because we know insurance claims after a wind event depend on that paper trail.

When you call us from the 91761 or 91762 ZIP code, you’re talking to a roofer who understands what original 3-tab shingles look like after 25 years of triple-digit summers. Ruben has walked more of these Ontario roofs than he can count, and the honest assessment is always the same: see it before you sign anything.

Roof Installation in Ontario

Roof installation in Ontario means more than laying shingles. It means building an assembly that holds together when the Santa Anas hit. The first sentence is the point: a code-compliant, wind-rated installation here starts around $11,000 and runs to $18,000 depending on square footage, pitch, tear-off complexity, and the product you choose. Our crews install architectural shingles with enhanced nailing patterns, high-wind underlayment, and full documentation of every layer. That’s what a Ontario roof needs.

High-Wind Underlayment and Nailing

The difference between a roof that survives October and one that doesn’t often comes down to what’s under the shingles and how many nails hold them. In Ontario, we install peel-and-stick underlayment in valleys and around penetrations, plus synthetic felt rated for high-wind exposure. Shingles get six nails instead of four when the wind rating calls for it.

New Construction and Full Replacement

New construction in Ontario’s newer subdivisions off the 15 requires the same wind-uplift approach as a 1980s tract home replacement. We handle both. For full replacements, we strip to decking, inspect for rot or delamination, replace damaged decking, and rebuild the roof as a system, not just a surface.

Roof Replacement Contractor in Ontario

A roof replacement contractor in Ontario should be able to tell you what wind rating your new roof will carry and why. That’s the threshold question. Most replacement work here runs $9,500 to $16,000 for asphalt shingle systems, with concrete tile or flat roofing pushing higher. We’re the contractor who explains which products earn a 130 mph rating and what the permit and inspection process looks like before you commit.

Documented Compliance for Insurance

Ruben and his crew take photos at every stage: old roof stripped, decking exposed, underlayment laid, shingles nailed. After a Santa Ana event, that documentation is what lets you file a claim that holds up. We provide the paperwork that shows your roof was installed to meet local wind-load standards, which is exactly what an adjuster looks for after the ridge caps end up in your neighbor’s yard.

Repair When You Can

Not every Ontario roof with wind damage needs full replacement. If the decking is sound and the shingles are less than ten years old, a targeted repair may be the right call. That’s a decision we’ll make with you, not for you.

Trusted Brands We Service in Ontario

Windmill Roof Repair is material-agnostic, which means we’re not pushing one manufacturer. We work with seven leading shingle brands, including GAF, CertainTeed, Tamko, and Boral, because Ontario’s housing stock varies enough that one brand doesn’t fit every roof. A 1950s cottage near downtown with a low-slope roof has different needs than a 1990s stucco tract home off the 60. We keep a range of products available and can typically source what your roof needs without weeks of delay. Seven brands, one crew.

Common Roof Replacement Problems We See in Ontario Homes

• Santa Ana wind blow-off: 60-80 mph gusts off the Cajon Pass rip ridge caps and field shingles off roofs where sealant strips baked away years ago. We routinely find entire sections of shingles missing after October wind events.
• Heat-aged granules: Triple-digit summers accelerate granule loss and sealant failure. Many Ontario roofs reach the end of their usable life a few years earlier than the 25-year warranty suggests.
• Original 3-tab shingles on 1970s-90s tract homes: These roofs are at or past their lifespan, and the original nailing patterns don’t meet current wind-load requirements. The result is premature blow-off and insurance claims that get denied for lack of documentation.
• Missing or deteriorated starter strips: Cheap past installations skipped starter shingles or used poorly fastened edge details. This is the first place wind gets under a roof, and it’s invisible until the roof starts coming off.

Pricing for Roof Replacement in Ontario, CA

We Also Serve Cities Near Ontario

Our crews regularly work in Ontario and the surrounding communities, including Montclair, Upland, Chino, and Claremont. If you’re in one of those cities and need a roofer who understands Inland Empire wind and heat conditions, we’ll come out the same way we do for Ontario homeowners: inspection first, honest recommendation second.

FAQs About Roof Replacement in Ontario