Top Emergency Roofing Services in Ontario, CA, 91743 | Compare & Call

There are 239 roofing companies server in Ontario CA

Rain Dance Roofing

Rain Dance Roofing

★★★★★ 5.0 / 5 (11)
1506 S Newhaven Ln, Glendora CA 91740
Roofing

Rain Dance Roofing is a trusted local roofing company serving Glendora, CA, and the surrounding communities. We specialize in comprehensive roofing installations and re-roofs, handling everything from...

All About Roofing

All About Roofing

★★★★★ 4.6 / 5 (29)
10149 Mesquite St, Oak Hills CA 92344
Roofing

All About Roofing is a locally owned and operated business in Oak Hills, built on a foundation of over 45 years of hands-on experience. Owner Jim started in the trade right out of high school and spen...

All Weather Roofing

All Weather Roofing

★★★★☆ 3.8 / 5 (23)
4691 Revere Ct, Chino CA 91710
Roofing

All Weather Roofing has been a trusted, family-owned business serving Chino, CA, and the surrounding communities since 1978. Founded by Stephen Roberts, the company has grown through decades of local ...

C S Construction and Roofing

C S Construction and Roofing

★★★★★ 5.0 / 5 (7)
8132 Paisley Ave, Hesperia CA 92345
Roofing, Roof Inspectors, Flooring

C S Construction and Roofing is a locally owned and operated company in Hesperia, founded by a retired veteran with over two decades of roofing and construction experience. We specialize in providing ...

Top Of The Line Roofing

Top Of The Line Roofing

★★★★☆ 3.7 / 5 (6)
2151 Redwood Ave, Ontario CA 91762
Roofing

Top Of The Line Roofing has been serving Ontario homes for over 22 years, founded by a roofer who earned his license in 2002 after years of hands-on work and formal education in California roofing sta...

Espinoza Roofing

Espinoza Roofing

★★★★★ 5.0 / 5 (4)
Upland CA 91786
Roofing

Espinoza Roofing is a family-owned Upland roofing company that has been protecting homes and businesses since 1986. With deep roots in the local community, we provide reliable residential and commerci...

Sierra Pacific Roofing

Sierra Pacific Roofing

★★★★★ 5.0 / 5 (6)
1042 N Mountain Ave Ste B383, Upland CA 91786
Roofing

Sierra Pacific Roofing is a trusted, locally-owned roofing company serving Upland and the surrounding communities. We specialize in providing reliable roof repairs, from fixing minor leaks to addressi...

Sam Roofing

Sam Roofing

★★★★☆ 4.3 / 5 (3)
1004 W Covina Pkway Ste 451, West Covina CA 91790
Roofing

Sam Roofing is a West Covina-based, full-service roofing company established in 2011. With a personal touch, we bring over 30 years of combined experience to every project, serving residential and com...

D & G Roofing

D & G Roofing

★★★★☆ 4.0 / 5 (8)
1407 Foothill Blvd Ste 307, La Verne CA 91750
Roofing, Roof Inspectors

D & G Roofing Inc. has been a trusted roofing provider in Southern California since 1982, offering consistent, reliable service under the same ownership and contact number for over three decades. Base...

W H Byars Roofing

W H Byars Roofing

★★★☆☆ 2.6 / 5 (5)
202 S Bon View Ave, Ontario CA 91761
Roofing

W H Byars Roofing, originally founded in 1946 by William Houston Byars, has been a family-owned and operated cornerstone of the Ontario, CA community for generations. As one of the area's largest roof...



Estimated Roofing Service Costs in Ontario, CA

Emergency Leak TarpingEstimated Range
$439 - $589
Roof Health InspectionEstimated Range
$169 - $229
Minor Roof Leak RepairEstimated Range
$634 - $849
Asphalt Shingle ReplacementEstimated Range
$12,239 - $16,329
Seamless Gutter InstallEstimated Range
$2,739 - $3,659

Methodology: Estimates are dynamically generated using labor multipliers derived from 2025 BLS OEWS (SOC 47-2181) data for Ontario. Prices include standard parts and labor adjusted for 2026 economic projections.

Question Answers

What makes a roof resilient against Ontario's wind storms?

Ontario's 110 mph Ultimate Design Wind Speed Zone requires roofs to withstand atmospheric river events. Class 4 impact-rated shingles are a financial necessity—they resist hail and wind-driven debris damage, reducing insurance claims. Proper installation with enhanced decking attachment and sealed roof edges prevents uplift during December-February peak storms, protecting your home's structural integrity.

Why are my homeowner insurance premiums rising so much in Ontario?

Insurance premiums in Ontario have increased by 18% due to higher claims from storm damage. Upgrading to an IBHS FORTIFIED Home standard roof directly lowers your bill by qualifying for available credits. These roofs meet enhanced wind and water resistance requirements, reducing insurer risk and passing savings to homeowners through lower premiums and potential deductible reductions.

My roof is leaking during a storm. How quickly can a contractor respond?

Emergency tarping crews can typically arrive within 35-45 minutes. From Ontario Town Square, they take I-10 directly to your neighborhood, prioritizing active leaks to prevent structural damage. Immediate tarping secures the compromised area until permanent repairs can be scheduled, minimizing water intrusion and protecting interior finishes from costly secondary damage.

Should I consider solar shingles instead of traditional asphalt in 2026?

With NEM 3.0 and the 30% Federal ITC, solar shingles offer energy generation but cost more upfront than architectural asphalt. Traditional shingles remain practical for Ontario's low hail risk, while solar options provide long-term savings on electricity bills. Evaluate based on your energy usage, roof orientation, and whether immediate storm resilience or gradual energy independence aligns with your priorities.

How do modern roof inspections differ from traditional methods?

Standardized aerial imagery and AI-assisted measurements identify sub-surface moisture in asphalt shingles that traditional walk-overs miss. This technology detects early-stage water intrusion under the surface, revealing compromised decking areas before visible leaks occur. In Ontario's climate, this proactive approach prevents extensive damage by addressing issues during dry periods, saving homeowners from emergency repairs.

My Ontario home was built around 1979. Why does my asphalt shingle roof need replacement now?

Roofs in Downtown Ontario average 47 years old, exceeding the 25-30 year lifespan of architectural asphalt shingles. On 1/2 inch CDX plywood decking, decades of UV exposure and moisture cycles from atmospheric river events degrade the shingle's protective granules and adhesive strips. This leads to curling edges, granule loss, and compromised water resistance, making replacement necessary to prevent decking rot and interior water damage.

What are the current code requirements for roofing in Ontario?

The Ontario Building and Safety Department enforces the 2022 California Residential Code, requiring specific ice and water shield offsets and flashing details. Contractors must hold CSLB licensing for compliance. These standards mandate sealed roof edges and enhanced underlayment in vulnerable areas to prevent water intrusion, ensuring roofs withstand local climate conditions and meet insurance durability expectations.

Can poor roof ventilation cause problems in my Ontario home?

Improper ventilation on a 4/12 pitch roof leads to attic mold and reduced shingle lifespan. The 2022 California Residential Code requires specific intake and exhaust ratios to manage heat and moisture buildup. Inadequate airflow traps warm, humid air from living spaces, promoting mold growth on decking and accelerating shingle deterioration through thermal cycling and moisture absorption.

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