Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Inspection Across Ontario
A roof inspection in Ontario typically runs $195 – $425 for a single-family home, with larger two-story or steep-pitch homes landing at the higher end. We’ll walk the entire roof surface, attic, flashing, and gutters, then hand you a written report with photos and a line-item estimate if repairs are needed. If you need a straight answer about whether your roof has another season in it or not, call Brennan Roofing at (361) 320-9467.
We know Ontario’s housing stock well. Most of the city’s residential blocks are post-WWII tract homes built between the 1950s and the 1970s, and a lot of those original roofs are past due. When you schedule a Roof Inspection with us, you get a background-checked, uniformed technician who knows what a split 1×6 skip sheathing board looks like and why it matters for your insurance claim. We inspect, we document, we price it in writing. No games.
Why Brennan Roofing Is Ontario’s Preferred Roof Inspection Company
Ontario homeowners call us because we do what we say we’ll do. We show up inside the promised window, in uniform, with a background-checked crew badge and a clipboard. Every inspection follows the same Garrison Standard: written pricing before any work starts, a full one-year written guarantee on any repair or installation we perform, and a live person on the phone around the clock. Not a voicemail. Not a callback queue. A person.
Our reviews from Ontario customers consistently mention two things: the tech actually went into the attic, and the report made sense without a roofing dictionary. That’s not accidental. Travis Oakley, who leads Brennan Roofing, set the inspection protocol to include attic ventilation checks, fastener inspection, and thermal image review when conditions call for it. We’re not a faceless national chain. We’re an independently owned member of the Garrison Partners family, founded in 2000, and we answer to the people of Ontario, not a franchise office three states away.
The local angle matters. A roofer who works mostly in coastal cities doesn’t know what 110°F summers do to a roof deck in Ontario, or how Santa Ana winds lift shingles that were nailed to rotten skip sheathing. We inspect in Ontario because we know what Ontario roofs do when they fail, and we know what it costs to fix them right.
Hail Damage Roof in Ontario
Ontario homeowners need a hail damage roof inspection after any storm that drops hail larger than a dime, because the city’s position inland from the San Gabriels puts it in the path of severe thunderstorm cells that roll through in late summer and early fall. Hail damage roof inspections in Ontario run $150 – $350, depending on roof size and pitch, and they’re often the difference between an insurance claim that pays out and one that gets denied for lack of documentation.
What We Document
On a hail damage roof inspection in Ontario, we document granule loss on shingles, circular impact marks, cracked or bruised shingles, dented flashing, and soft metal damage on vents and gutters. We photograph every impact site and note wind direction, because insurance adjusters in the Inland Empire want evidence that ties the damage to a specific storm date. We use chalk to circle the impact points so the adjuster can see exactly what we saw.
The Insurance Report
Brennan Roofing provides a written report with photos, measurements, and a repair or replacement estimate in dollars. You’ll know before the adjuster shows up whether the roof is totaled or repairable, and you’ll have a document trail that keeps the claim honest. The estimate is free with the inspection, and the price on that paper does not move at the door.
Roof Estimate in Ontario
A roof estimate in Ontario for a full replacement on a typical 1,400 – 2,000 square foot tract home runs $9,800 – $17,500, with repairs landing between $350 – $1,800. We put every estimate in writing before any work starts, and the number stays the number. No change orders because we “discovered” something that should have been caught in the inspection.
What Drives the Price in Ontario
The single biggest cost driver on a roof estimate in Ontario is whether the home was built with 1×6 skip sheathing under wood shake, which is extremely common in the tracts near the 60 Freeway corridor. If the decking doesn’t meet current code, we write a full redeck with plywood into the estimate, and we tell you exactly what that line item costs. We don’t hide it until tear-off day. We also price in wind-rated fastening and cool-rated shingle options, because Ontario sits in a high-wind zone where 110+ mph rated materials are often required to keep a manufacturer’s warranty valid.
The Written Price
Here’s the structure under the Garrison Standard: you get a written price on paper before any work begins. Always. No exceptions. The estimate includes a full-year written guarantee on our work, and if a repair fails within that year, we come back at no charge. That’s the 365-Day Done Right Promise, and it goes on paper with the estimate.
Trusted Brands We Service in Ontario
We install and inspect materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Ontario specifically, we stock or can quickly source the product lines that hold up to the inland heat. We regularly inspect and repair Atlas and GAF shingle systems in Ontario, and we’re familiar with the wind warranty conditions that apply to these brands in the city’s high-wind zone. We’ll explain the price difference between a standard architectural shingle and a cool-rated option in plain English, so you decide with your eyes open.
Common Roof Inspection Problems We See in Ontario Homes
- Deteriorating 1×6 skip sheathing under original wood shake. In the older tracts near the 60 Freeway corridor, original roof decking has often dried and split after decades of 100°F+ summers, leaving fasteners with nothing to bite into. Current code requires a full redeck with plywood before any modern wind-rated shingle system can be installed.
- Granule loss and curling from intense inland UV exposure. Ontario’s hot semi-arid climate bakes asphalt shingles from above while minimal attic insulation cooks them from below. A shingle that would last 25 years in a coastal city can fail in 12 – 15 years here.
- Shingle blow-off after Santa Ana wind events. The city sits in a high-wind zone where 60 mph Santa Ana gusts are common. If the original shake was removed and shingles installed without enhanced fastening, we find missing tabs and lifted courses on the windward slopes of Ontario homes.
- Failed attic ventilation in mid-century construction. Older Ontario tract homes often have minimal soffit vents and no ridge vent, trapping superheated air in the attic. The roof deck cooks from below, shingles age prematurely, and the manufacturer’s warranty won’t cover it because the failure isn’t a material defect, it’s a ventilation problem.
Pricing for Roof Inspection in Ontario, CA
We Also Serve Cities Near Ontario
Beyond Ontario, our crews cover neighboring Inland Empire communities including Montclair, Claremont, Upland, and Rancho Cucamonga. If you’re in one of those cities and need a roof inspection or a written estimate, the same Garrison Standard applies. You can reach the team that serves Ontario at (361) 320-9467.
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 Inspection in Ontario
Does my Ontario home near the 60 Freeway need a full redeck during a roof inspection?
If your Ontario home was built with original 1×6 skip sheathing under wood shake, current building code requires a full redeck with plywood before any new roof system goes on. During a recent inspection in the older tracts near the 60 Freeway corridor, our tech found original wood shake roofs with sheathing that had dried and split under decades of heat, leaving fasteners loose and shingles vulnerable to Santa Ana wind uplift. We documented the failing decking, recommended a full redeck with plywood plus a cool-rated architectural shingle system with enhanced nailing, and the homeowner avoided a blow-off that would have voided the manufacturer’s warranty. Call (361) 320-9467 to have your sheathing checked.
How does Ontario’s inland heat affect roof inspection findings compared to coastal cities?
Ontario’s summer heat degrades roofing materials faster than coastal climates because sustained temperatures above 100°F and intense UV exposure break down asphalt at an accelerated rate. In a coastal city, a roof inspection might find 15-year-old shingles with normal wear. In Ontario, we commonly find 12-year-old shingles with granule loss, curling, and thermal splitting. That’s why we recommend cool-rated shingles in Ontario and check attic ventilation during every inspection, since heat trapped below the roof deck is often the bigger problem.
What wind rating should I look for on shingles in Ontario, CA?
In Ontario, we recommend shingles rated for 110 mph or higher wind uplift, because the city sits in a high-wind zone where Santa Ana gusts commonly reach 60 mph. Many manufacturers void your warranty if the shingles aren’t installed with enhanced fastening patterns in high-wind zones, so the rating isn’t just about safety, it’s about whether the warranty will pay out. Call (361) 320-9467 and we’ll inspect your roof and tell you what you have.
Why is attic ventilation critical during a roof inspection in Ontario’s mid-century tract homes?
Ontario’s mid-century tract homes often have minimal attic insulation and older ventilation designs, which trap superheated air over the roof deck. That heat cooks shingles from below and causes them to fail early even if they’re wind-rated. During every roof inspection in Ontario, we check the soffit vents and ridge vent, and if the ventilation is insufficient, we recommend a fix and price it in writing.
What does a roof inspection cover for hail damage in Ontario?
A hail damage roof inspection in Ontario covers the entire roof surface for impact marks, granule loss, dented flashing, and soft metal damage, then documents everything with photos and measurements tied to the storm date. We provide a written report you can hand your insurance adjuster, and the estimate is free. Call (361) 320-9467 to schedule a hail damage roof inspection in Ontario.
Schedule Your Roof Inspection in Ontario Today
If you’re in Ontario and want a straight answer about your roof, call Brennan Roofing at (361) 320-9467. You’ll speak with a live person, schedule an inspection, and get a written price before any work starts. The inspection is thorough, the report is clear, and the guarantee is in writing for a full year. We serve Ontario and the surrounding Inland Empire, and we’ll show up inside the window we promise.
Written by Travis Oakley, Owner at Brennan Roofing, operating under the Garrison Standard.