Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
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Before
AfterRoofers in Commerce, CA
Roofing in Commerce, CA means working with a housing stock and air quality most roofers in neighboring cities never think about. The city is small, heavily industrial, and ringed by the 5 and 710 freeways, rail yards, and warehouses, which means residential roofs here collect diesel soot and particulate fallout faster than homes in Downey or Whittier. Asphalt shingles stain, lose granules early, and age unevenly on the freeway-facing slopes. If you need a roofing company in Commerce that understands flat and low-slope work alongside standard shingle replacement, call Brennan Roofing at (361) 320-9467.
Why Commerce Homes Are Different
Commerce is mostly small post-WWII stucco tract houses on flat or very low-pitch lots, mixed with a large share of flat-roofed warehouses, truck yards, and light-industrial buildings. So the work here splits into two worlds: hot-mop and modified bitumen flat systems on commercial structures, and standard shingle replacement on the modest single-family homes tucked between them. A roofer who only does pitched shingle roofs is not the right fit for this city.
The climate is a real factor. Commerce sits in the Los Angeles basin with hot, dry summers, mild wet winters, and persistent inland smog. Homes near the 710/5 interchange and the rail yards along Bandini and Washington Boulevards show black soot streaking on the freeway-facing slopes. That particulate works into the shingle surface and accelerates granule loss, which is why many homeowners here opt for darker or algae- and stain-resistant shingle lines just to keep the roof looking clean between washings.
Permits in Commerce follow Los Angeles County standards, and because much of the housing stock has low-pitch roofs, water ponding after winter rains is a common call driver. We check decking, underlayment, and drip edge conditions on every Commerce job because the air here shortens the service life of those materials just as much as the shingles above them.
Our Main Commerce Services
Homeowners in Commerce call Brennan Roofing most often for two reasons: a roof that is showing its age and needs replacement, or a specific leak or damage issue that needs repair. Each service has its own Commerce page with full pricing and process detail.
Roofing Company in Commerce
Full roof replacement in Commerce starts with an honest read on what the existing roof is doing. On low-pitch tract homes, the decking under the shingles takes more moisture exposure than a steeper roof would, so we inspect it before quoting. On flat warehouse roofs, we look at the hot-mop or modified bitumen condition, flashing seams, and drainage points. You get a written price before any work starts, and the job is backed by the 365-Day Done Right Promise. See the full breakdown on our Roofing Company in Commerce page.
Roof Repair in Commerce
Repair calls in Commerce usually involve soot-stained shingle slopes, lifted flashing around vents or chimneys, or ponding water on low-pitch sections after winter rains. We identify the source, explain it in plain English, and put the repair price in writing before work begins. If the repair fails within one year, we return at no charge. Details and pricing are on the Roof Repair in Commerce page.
Roof Inspection in Commerce
Given the particulate fallout and flat-roof inventory in Commerce, an inspection here is not just a visual walk-around. We check granule loss on freeway-facing slopes, drainage on low-pitch sections, flashing condition, and underlayment integrity where accessible. The inspection report gives you a straight answer about remaining roof life and what needs attention now versus later. Learn what the inspection covers on our Roof Inspection in Commerce page.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Commerce
We install shingle and flat-roof systems from GAF, CertainTeed, and Owens Corning, and we can source Atlas and Tamko lines for Commerce homeowners who want a specific look or stain resistance. Parts are stocked locally for faster turnaround. See our brands for a full list and what each line offers.
Pricing for Roofers in Commerce, CA
These are the price ranges we quote most often for Commerce jobs. Every number below is a typical installed range, not a bid. Your written quote covers the exact scope and materials before any work starts.
| Service | Typical Range in Commerce |
|---|---|
| Shingle replacement (standard asphalt, per square) | $350 – $550 |
| Full roof replacement on a Commerce tract home | $8,000 – $16,000 |
| Flat roof replacement (modified bitumen) | $7,000 – $14,000 |
| Flat roof replacement (hot-mop) | $6,500 – $12,000 |
| Flashing repair or replacement | $300 – $800 |
| Leak repair (minor, no structural damage) | $400 – $900 |
| Underlayment replacement (partial, per section) | $500 – $1,200 |
| Drip edge replacement (per linear foot) | $8 – $15 |
| Roof inspection | $150 – $400 |
| Emergency tarp or temporary patch | $500 – $1,000 |
What pushes a Commerce price toward the top of the range is usually decking that has softened from ponding water, or a freeway-facing slope that needs full underlayment replacement beneath soot-damaged shingles. Whatever the number is, it goes on paper before any work starts, and it does not move at the door.
Neighborhoods We Serve in Commerce
We run crews throughout Commerce, from the residential blocks south of the 5 to the streets east of the 710 and the homes tucked behind the industrial corridor along Bandini Boulevard. Our scheduling coordinates from the Los Angeles office, and Commerce crews typically arrive within the promised window.
- Bandini Boulevard area
- Washington Boulevard corridor
- South Commerce (near the 5)
- East Commerce (near the 710)
- Telegraph Road area
Service Area – Cities Near Commerce
Brennan Roofing serves Commerce and the surrounding Los Angeles basin. We also cover Los Angeles, CA, San Diego, CA, San Jose, CA, and San Francisco, CA. If you are just outside Commerce, call (361) 320-9467 and we will confirm coverage.
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 Roofers in Commerce
For urgent leak calls, we dispatch a Commerce crew within one business day in most cases. Emergency tarp service is scheduled the same day when needed. Call (361) 320-9467 and a live person will confirm the schedule, not a voicemail system.
Commerce follows Los Angeles County building code, so standard roof replacements require the same permit process as neighboring cities. We pull the permit and schedule the inspection as part of the job. The permit fee is included in your written quote.
Constant diesel soot, rail dust, and particulate fallout from the 5/710 corridor settle on shingle surfaces and accelerate granule loss and staining. Freeway-facing slopes age first. Choosing algae- and stain-resistant shingle lines helps, but annual inspection is the real defense.
If your roof is showing its age or leaking, call Brennan Roofing at (361) 320-9467 for a free estimate. A live person answers, the price goes in writing before any work starts, and the job is guaranteed in writing for one full year.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Commerce Customers Say
"Quality work and clear communication. Rain pushed the start by two days, which is fair, but we were hoping to be done sooner."
- Cathy N."Storm took off a section of shingles. They were here next morning to tarp it and finished the repair that week."
- Elaine D."Ridge vent added and the attic is cooler. Fair price compared to the other two quotes."
- Vernon C.