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Ontario, CA's Trusted Roofers for Every Roof Need

Hey there, and welcome to the Ontario, CA Roofers directory! Whether you've got a leaky roof, a full replacement on the horizon, or you're just shopping around for quotes, we're glad you stopped by. Browse around, compare local pros, and find someone you feel good about hiring.

📍 Ontario, CA 🏢 10 businesses listed 📸 Get AI roofing estimate 🎨 roofer
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Map of Businesses in Ontario

All Listings in Ontario

10 businesses
B & M Roofing

B & M Roofing

Roofing contractor
📍1931 S Benson Ave, Ontario, CA 91762, United States
First Roofing

First Roofing

Roofing contractor
📍1407 S Cucamonga Ave #2, Ontario, CA 91761, United States
Ontario City Roofing LLC

Ontario City Roofing LLC

Roofing contractor
📍541 Brooks St, Ontario, CA 91762, United States
Ontario Roofing and Gutter

Ontario Roofing and Gutter

Roofing contractor
📍116 W G St, Ontario, CA 91762, United States
Sandoval Roofing

Sandoval Roofing

Roofing contractor
📍3117 Thoroughbred St, Ontario, CA 91761, United States
Sunset Roofing Services

Sunset Roofing Services

Roofing contractor
📍4793 W State St, Ontario, CA 91762, United States
Ontario Roofing

Ontario Roofing

Roofing contractor
📍4335 E Lowell St Ste G, Ontario, CA 91761, United States
Rocket Roofing

Rocket Roofing

Roofing contractor
📍9480 Utica Ave #608, Rancho Cucamonga, CA 91730, United States
Kaliber Roofing Inc

Kaliber Roofing Inc

Roofing contractor
📍11182 Poulsen Ave, Montclair, CA 91763, United States
Central Roofing Company Ontario

Central Roofing Company Ontario

Roofing contractor
📍1001 Doubleday Ave, Ontario, CA 91761, United States

About roofer in Ontario

Rain barely touches Ontario roofs. The sun does the damage. Months of Inland Empire heat bake asphalt shingles, dry out underlayment, and crack sealants long before a leak shows up on a ceiling.

That slow cooking drives most of the Roofers market here. Hail is rare and big wind events happen only occasionally. Demand comes from age: tract homes from the 1970s through the 1990s, newer stucco-and-tile builds in the south, and a huge stock of flat, low-slope warehouse roofs near the airport.

The market feels crowded and fragmented. Plenty of small, family-run crews work alongside larger regional outfits. Customers are a mix of long-time homeowners, sellers prepping for escrow, new-home owners fixing builder shortcuts, and commercial owners managing big flat roofs.

Ontario also differs from nearby coastal cities. Fire-rated roofing and "cool roof" energy requirements shape material choices, and the city's permit process applies to most full re-roofs.

Ontario Ranch (South Ontario)

  • Area Profile: 📍 Newer master-planned communities, lots of young families, mostly newer-construction homes with HOAs.
  • Roofers Activity: Mostly repairs, tile and flashing fixes, and solar-related roof work. Full re-roofs are still uncommon on the youngest homes.
  • Price Range: Repairs typically run a few hundred to a few thousand dollars. Full tile re-roofs can land in the $20,000–$40,000+ range.
  • Local Note: HOA architectural approval is common, so tile color and profile matter. Ask who handles that paperwork.

Euclid Avenue & Historic Downtown

  • Area Profile: 📍 Older, tree-lined streets with character homes, a mix of long-time owners and renovators.
  • Roofers Activity: Full re-roofs, decking repairs, and restoration-minded work on older homes.
  • Price Range: Often $9,000–$25,000, depending on pitch, layers, and decking condition.
  • Local Note: Older homes may hide rotted sheathing or multiple shingle layers. Get that possibility addressed in the written estimate.

North Ontario (near Mountain Avenue)

  • Area Profile: 📍 Established middle-income neighborhoods near the Upland border, with mostly single-story ranch homes.
  • Roofers Activity: Steady re-roof demand as 30-plus-year-old composition roofs wear out. Pre-sale inspections drive plenty of repairs.
  • Price Range: Typically $8,000–$16,000 for asphalt shingle replacement.
  • Local Note: Mountain views are lovely, but this edge of town can see stronger Santa Ana gusts that lift loose shingles.

📊 Current Price Points:

  • Budget: roughly $300–$2,500 (leak patches, flashing, a few replaced tiles)
  • Mid-range: roughly $8,000–$18,000 (full asphalt shingle re-roof, the most common segment)
  • Premium: $20,000+ (concrete or clay tile, standing-seam metal, large or complex roofs)

📈 Market Trends:

  • Demand looks steady, with older housing stock keeping re-roof work consistent.
  • Material costs have been unpredictable, and quotes may carry short expiration windows.
  • Pricing has tended to drift upward more than down, driven by labor and materials.
  • Most jobs are dry-weather work. A typical shingle re-roof takes a few days; tile or complex jobs can stretch past a week.

💰 What People Are Spending:

  1. Leak repair and flashing: a few hundred to a few thousand dollars
  2. Full asphalt re-roof: about $8,000–$18,000
  3. Tile underlayment replacement or re-lay: often $15,000–$35,000
  4. Gutter and drainage add-ons: a few hundred to a few thousand

Economic Indicators:

  • Ontario has been one of the Inland Empire's growth stories, with major residential development in the south.
  • Ontario International Airport and the surrounding logistics sector anchor the local economy.
  • Housing ranges from modest older tracts to newer, pricier master-planned areas.

Local Market Dynamics:

Heat and UV wear, aging roofs, and real-estate transactions drive demand more than storms do. Competition is fragmented. You'll find many small operators and a handful of larger names, so quality varies widely.

How This Affects Customers:

You have options, which is good. But it's also easy to mistake a low bid for a good deal. In a crowded field, the affordable quote often skips underlayment, flashing, or permits. Commercial owners and homeowners should both compare scope, not just totals.

Ontario Seasonal Patterns:

  • ☀️ Spring/Summer: Peak install season. Dry weather means busy crews, but extreme heat days can slow work.
  • 🍂 Fall: A good window before winter rains. Crews often have more flexibility.
  • ❄️ Winter: Rain delays scheduling, and leak calls spike after storms. Roofers can be harder to book fast.
  • 📅 Peak months: Act fast right after big rain events. Negotiate in shoulder seasons.

Timing Tips for Ontario:

Crew availability tightens right after major winter storms. Permits and inspections add days, so a full process from first call to final inspection usually runs a few weeks.

Smart Timing Tips:

  • ✓ Book inspections in late summer or early fall, before rain season
  • ✓ Don't wait for a leak. Small repairs cost far less than interior damage
  • ✓ Get at least three written bids before making a decision
  • ✓ If selling, schedule roof work before listing, not during escrow

Credentials to Verify:

  • A valid California Contractors State License Board (CSLB) license. Roofing falls under the C-39 classification.
  • Active workers' comp and liability insurance
  • Manufacturer credentials like GAF Master Elite or Owens Corning Preferred Contractor
  • Reviews on Google and Yelp that read as specific, not generic

Questions to Ask:

  • How long have you worked in Ontario?
  • Can you share local references?
  • What's covered under workmanship versus manufacturer warranty?

⚠️ Red Flags Specific to Ontario Roofers:

  1. Door-knockers offering "storm damage specials" right after rain
  2. Demanding large payment upfront (California law limits down payments on home improvement contracts)
  3. No permanent local address, or only a P.O. box
  4. Pushing you to sign an insurance-claim assignment before an adjuster has inspected

Where to Check Complaints:

  • CSLB's online license lookup, which shows status, bonds, and disciplinary history
  • Better Business Bureau
  • Google/Yelp, where patterns matter more than a single bad review
✓

✓ Established presence in Ontario (not just passing through)

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✓ Verifiable local reviews and references

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✓ Transparent pricing, no hidden fees

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✓ Clear process explained upfront

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✓ Responsive communication

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No CSLB license, or one that doesn't match the name on the contract

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Refusal to provide proof of insurance

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Verbal-only estimates

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Pressure to sign the same day "before the price goes up"

Check Reviews & Ratings

We recommend verifying businesses through trusted review platforms before making a decision.

Frequently Asked Questions

How much should I expect to pay for a roof repair versus a full replacement in Ontario, CA? +
Look, it depends a lot on your roof type, but small repairs like fixing a few shingles, resealing a flashing, or patching a leak often land somewhere around a few hundred to $1,500 in Ontario, CA. Full replacements on a typical single-family home usually run from roughly $8,000 to $20,000 for composition shingle, and tile or specialty systems can climb well past that. Size, pitch, number of layers to tear off, and decking repairs all swing the price. (Get at least three itemized quotes so you can see where the differences come from.) Be wary of any number that's dramatically lower than the rest, because that's usually where corners get cut.
How do I know a roofing company in Ontario, CA is actually legit and licensed? +
Here's the thing: in California, anyone doing roofing work over a small dollar threshold needs a C-39 (Roofing) license from the CSLB, and you can look up any license number on the CSLB website in about two minutes. Check that it's active, that the name matches the contract, and that there's a current contractor bond and workers' comp coverage on file. Ask for a certificate of liability insurance sent straight from their insurer, not just a photo of one. If a Roofers company in Ontario can't or won't give you a license number up front, walk away.
When's the right time of year to book a roofer in Ontario? +
In Ontario, CA, the sweet spot is usually late spring through early fall, when it's dry and shingles seal properly. The catch is that summer heat out here can be brutal for crews, so good Roofers often start at dawn. Rainy season (roughly late fall through winter) and any big Santa Ana wind event tend to create a rush of calls and longer waits. If you can, book your replacement before the rains hit instead of scrambling after the first leak. Expect scheduling to be tighter right after storms, and a bit more flexible in quieter stretches.
What should I ask a roofer before signing anything? +
Start with a written, itemized estimate that spells out materials (brand and line), tear-off, underlayment, flashing, cleanup, and who pulls the permit. Ask about two warranties separately: the manufacturer's material warranty and the contractor's workmanship warranty, and get the length of each in writing. In California, a home improvement contract has to include specific details and a notice of your right to cancel, so if what you're handed looks like a one-line scribble, that's a problem. Also ask who will actually be on your roof (employees or subcontractors) and whether they'll work with your insurance company if you're filing a claim. A solid Roofers company in Ontario, CA will answer all of that without getting defensive.
How long does a roof replacement usually take, and what's the process like? +
For an average home in Ontario, CA, the actual work often takes anywhere from one to five days, depending on size, roof type, and weather. Tile roofs and complex rooflines usually take longer than a straightforward shingle job. Before that, you may be waiting a few days to a couple of weeks for scheduling, material delivery, and the city permit. Expect noise, debris in the yard, and crews starting early, so move cars away from the house and cover anything in the attic. A good crew will do a magnet sweep for nails and give you a final walkthrough.
Which roofing certifications actually matter in California? +
The big one is the active C-39 license from the CSLB, because that's the legal baseline for Roofers in CA. Beyond that, manufacturer certifications (think GAF, Owens Corning, or CertainTeed programs) matter because they can unlock stronger warranties on your materials, but they're a bonus, not a substitute for the license. Ask exactly which certification level they hold and whether the warranty will be registered in your name. Also, since California has energy efficiency rules for roofing, it's smart to ask if they're familiar with cool roof requirements that can apply in Ontario. Fancy badges on a truck don't count for much until you've verified them.
What are the common roofing scams or red flags to watch out for around Ontario? +
Watch out for door-knockers who show up right after a storm or windy spell claiming they 'just happened to notice' damage on your roof, especially if they pressure you to sign the same day. Another red flag is a big upfront payment demand: in California, the down payment on a home improvement contract is generally capped at a small amount (the lesser of 10% or a modest flat figure), so someone asking for half the job up front is breaking the rules. Be cautious of cash-only deals, no license number on the contract, vague materials descriptions, or offers to 'cover your deductible.' If something feels rushed in Ontario, CA, slow it down and check the CSLB before you sign.
Is it really worth hiring a local Ontario roofer instead of a bigger outfit from out of the area? +
Honestly, yes, in most cases. A local Ontario, CA roofer already knows the city's permit process, the typical Inland Empire stucco-and-tile or shingle setups, and how heat, sun, and wind wear roofs out here. They're also much easier to reach if a leak shows up a year later and you need warranty work. Out-of-area outfits can come and go, which makes workmanship warranties hard to enforce. Look for a Roofers business with a real local address, a history you can check through the CSLB and reviews, and neighbors you can ask about their work.

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