Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
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Before
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Before
AfterFast, Reliable Roof Inspection Across Commerce
A roof inspection in Commerce typically runs $199 – $450 for a standard residential home, with flat and low-slope commercial systems starting around $350 and climbing based on square footage and access. Most inspections take 60 – 90 minutes, and we hand you a written report with photos and line-item findings before we leave the driveway. If you’re off Bandini Boulevard or tucked between warehouses near the 5/710 interchange, call (361) 320-9467 and we’ll schedule a time that fits your day.
Commerce is different from the cleaner air in Downey or Whittier. The rail yards, the truck traffic, the refinery-adjacent air all land on your roof. You need someone who knows what that fallout does to shingles, flashing, and low-slope decking. Our Roof Inspection team does. We’re backed by the Garrison Standard: written price before any work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise in writing.
Why Brennan Roofing Is Commerce’s Preferred Roof Inspection Company
Homeowners in Commerce call us because we show up when we say we will, and we write everything down. No door-knock price changes. No vague hand-wave about “some granule loss up there.” You get a report that names the slope, the material condition, and what it costs to fix now versus what it costs if you wait. That’s the Garrison Code in practice.
Our technicians know the local failure points cold. A post-WWII stucco tract house off Washington Boulevard has a different life expectancy on its freeway-facing slope than its shaded rear slope. We grade each elevation separately. That’s not a detail most inspectors bother with, and it’s exactly the kind of thing that turns a $300 inspection into a $6,000 roof replacement you didn’t plan for. When you call (361) 320-9467, a live person answers. Not a voicemail, not a callback queue.
Travis Oakley runs our inspection crew with one rule: if it’s wrong, it’s in the report. If it’s right, you’ll know why. Every inspection is written, photographed, and explained in plain English. That’s the same standard on every job, every time, no exceptions. We are part of the Garrison Partners family, founded in 2000, independently owned and operated. The inspection you get in Commerce is the same inspection we’d give a homeowner in any city we serve. Disciplined. Accountable. Documented.
Roof Inspection Services in Commerce
Roof Inspection Services in Commerce cover everything from a standard pre-sale visual check to a full slope-by-slope tear-down assessment after a storm. Because Commerce is ringed by freeways and rail yards, we don’t judge your whole roof from the curb. We walk every elevation. We check the freeway-facing slope separately, because that’s the one that sheds granules years early and shows soot streaking down into the valleys. A standard residential inspection here runs $199 – $450. Flat and low-slope warehouse systems start around $350 and go up with square footage and access difficulty.
Slope-by-Slope Granule and Soot Assessment
Homes within a half-mile of the 5/710 interchange collect diesel soot and rail dust that eat away granule adhesion on asphalt shingles. We document which slopes are failing, where granules are collecting in gutters and valleys, and whether the underlayment is still intact beneath. You get a photo of what we saw, not just a note that says “wear on south elevation.”
Flat and Low-Slope Moisture Mapping
A large share of Commerce roofing is flat work on warehouses, truck yards, and light-industrial buildings. On those systems, we check hot-mop and modified bitumen seams, ponding water, and membrane blistering. We also look for the leak source that isn’t visible from below, which is where flat roofs fool people. Failed waterproofing at the decking reads like a worn shingle problem on a pitched roof. We know the difference.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Hail Damage Roof in Commerce
Hail Damage Roof calls in Commerce are less common than in the Inland Empire, but they happen. When a spring storm pushes through the Los Angeles basin, Commerce sees concentrated hail along the warehouse corridors and residential pockets near Bandini. A post-hail inspection here runs the same $199 – $450 range, and it’s worth every dollar: insurance adjusters want dated photos, measured hail strikes per square, and a roof condition baseline before the storm. We provide all three.
Strike Mapping and Granule Displacement
Hail hits hard on steep slopes and leaves deep bruising on flat or low-pitch sections. We circle the strikes, measure the size, and count the concentration per 10-foot-by-10-foot square. That’s the evidence your insurer needs to approve a claim, and it’s the documentation that keeps a disputed claim from stalling for months. We also check gutters, vents, and flashing because hail damage hides in those spots and leaks start there.
Post-Storm Decking and Underlayment Check
After hail, water is already moving through any breach in the shingle layer. We pull a few courses at the ridgeline and along the eave where the slope flattens out, looking for wet decking, cracked underlayment, and failed ice and water shield. If we find damage, you get a line-item estimate with a written price before any repair order is placed. No one touches a square of material until you approve the number on paper.
Trusted Brands We Service in Commerce
We install and service materials from GAF, Atlas, and Tamko, and we keep local inventory for the most common replacement profiles in Commerce’s housing stock. That means a dark, algae-resistant shingle that holds up against the particulate fallout near the rail yards, or a modified bitumen system for a flat warehouse roof off Washington Boulevard. You pick the line and the look; we explain the trade-offs in plain terms and put the number in writing before any work starts.
Common Roof Inspection Problems We See in Commerce Homes
- Freeway-facing slope granule loss and soot streaking. Homes near the 710/5 interchange or the Bandini and Washington rail yards show premature shingle aging on the elevation that takes the most diesel soot. We grade that slope separately and often recommend algae- or stain-resistant lines for that side of the roof.
- Failed waterproofing on flat and very low-pitch sections. Post-WWII tract houses in Commerce often have an addition, a carport, or a porch roof that pitches almost flat. Water pools, underlayment fails, and the leak gets blamed on the shingle slope above it. We trace the actual water path, not the visible stain.
- Rusted flashing and missing drip edge at eave transitions. The industrial air here accelerates corrosion on exposed metal, and older Commerce homes were built before drip edge was required. We check every transition and photograph each rusted length. It’s the difference between a $400 flashing repair and a $4,000 decking replacement later.
- Undersized or improper ventilation on homes built before 1980. Many Commerce tract homes have inadequate soffit and ridge ventilation, which cooks the attic in summer and shortens shingle life. We measure intake and exhaust in the inspection and note whether a ventilation correction is needed before the next re-roof.
Pricing for Roof Inspection in Commerce, CA
A standard shingle roof inspection in Commerce runs $199 – $450, and that includes the written report, photos, and a slope-by-slope assessment. Flat and low-slope commercial systems run $350 – $700 depending on square footage, access, and whether we need to run moisture mapping across the membrane. If the inspection leads to repair work, the inspection fee is credited toward your job. What moves the number on the inspection? Steep pitch, multiple roof sections, missing access points, and whether a drone pass is needed for areas a ladder can’t safely reach. We give you a fixed price before we set foot on the ladder. Call (361) 320-9467 to schedule your free estimate, and you’ll know exactly what the inspection costs before the day arrives.
We Also Serve Cities Near Commerce
Brennan Roofing runs inspection and repair calls throughout the Los Angeles basin, including Commerce, Los Angeles, San Diego, San Jose, and San Francisco. If you’re near the corridor but not inside city limits, call (361) 320-9467 and we’ll confirm coverage for your neighborhood. Dispatch and scheduling are coordinated from the brand’s Los Angeles office; crews serve Commerce locally. The same Garrison Standard applies everywhere: written price before any work starts, and the 365-Day Done Right Promise on every job.
Serving Commerce, CA - Our Local Coverage Area
We’re based in the Commerce 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 Commerce
The freeway-facing slope collects diesel soot, rail dust, and particulate fallout from the surrounding industrial corridor, which accelerates granule loss and staining on asphalt shingles. That slope can age five to eight years faster than the shaded rear slope under the same weather. We grade each elevation separately in every Commerce inspection, and if you’re replacing the roof, we’ll recommend a darker or algae- and stain-resistant line for that side so it doesn’t look worn two years in. Call (361) 320-9467 for an exact assessment and a written report.
Expect to find the same things we find on almost every 1940s-1960s tract home in Commerce: missing drip edge, rusted flashing at the eave transitions, underlayment that was never run past the eave on low-slope sections, and undersized attic ventilation. On a standard inspection we don’t open the roof, we assess what’s visible and probe for soft decking. If we recommend a repair, we often pull a few courses to confirm what’s beneath before writing the estimate. You get a line-item scope with the failed waterproofing and code corrections priced in advance.
If the inspection reveals decking that needs re-nailing to modern spec, rusted flashing that must be replaced, or ventilation that has to be corrected to meet building code, we include those items as written line items in your estimate. We pull the permit, schedule the inspection, and confirm the corrections pass. Nothing becomes a surprise change order at the door. The price you read the night before is the price you approve before any work starts. Call (361) 320-9467 and we’ll walk you through exactly what your inspector flagged.
Look for two separate scopes: one for the shingle slopes, one for the flat or low-pitch sections. A bidder who prices the whole roof as if it were all shingles is missing the hot-mop or modified bitumen work the flat sections need. We write both systems as separate line items, with separate materials, and explain what’s being done on each. That’s the only way to compare apples to apples. Bring us any competing bid and we’ll go through it line by line at no charge.
Yes, on the freeway-facing slopes specifically. Algae- and stain-resistant lines, especially darker colors from GAF or Atlas, hide the black soot streaking that otherwise shows up within two to three years on homes near the 710/5 interchange and the Bandini rail yards. They don’t stop granule loss, but they keep the roof looking clean far longer, which matters if you’re selling or just don’t want your house to look permanently dirty on one side. We can price both standard and stain-resistant options during your inspection.
Get Your Commerce Roof Inspection Scheduled
If you’ve been watching the granules pile up in your gutters or you’re buying a house near the freeway corridor, don’t guess. Call (361) 320-9467 to schedule your free roof inspection estimate. A live person answers, you get a written price before any work starts, and every job is backed by the 365-Day Done Right Promise in writing. If it’s not done right, we make it right, at no charge, for one full year. That’s the Garrison Standard. It’s the same on every job in Commerce, and it starts with a phone call.
Written by Travis Oakley, Owner at Brennan Roofing, serving Commerce and the surrounding Los Angeles basin.