Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Commerce
Roofing work in Commerce, CA typically runs $6,800 – $14,500 for a full shingle replacement on a standard post-war tract home, while flat and low-slope commercial roofs range from $9,000 – $22,000 depending on square footage and system type. Most residential repairs in Commerce fall between $450 and $1,800. We schedule and dispatch crews to Commerce directly from our Los Angeles office, so when you call (361) 320-9467, a live person answers and gets your Roof Inspection in Commerce on the calendar.
Commerce is unlike any other city we work in. Freeways wrap the city on multiple sides, rail yards run through the middle, and the air carries particulate fallout that settles directly onto roof slopes. That changes what we look for during inspection, what materials hold up, and what a fair price actually is. A Roofing Company working here needs to understand these conditions, because a crew that treats Commerce like any other LA suburb misses what’s actually happening on the roof.
Why Brennan Roofing Is Commerce’s Preferred Roofing Company
We built our reputation in Commerce on showing up when we say we will and putting the price in writing before anyone climbs a ladder. That matters here because this city does not tolerate vague promises. Homeowners off Bandini Boulevard, near the rail yards, and along the 5/710 corridor have dealt with roofers who quote one number and then find “unexpected damage” after tear-off. Our process removes that entirely. The Garrison Standard means a written price before any work starts, background-checked uniformed technicians on every job, and a 365-Day Done Right Promise in writing on every installation and repair.
Our crews know Commerce’s housing stock. Most homes here are post-WWII stucco tract houses with flat or very low-pitch roofs. That is a completely different job from a steep gable roof in the hills. We inspect for the specific failure patterns this city produces: soot-streaked shingle granule loss on freeway-facing slopes, cupped skip-sheathing under aging composite, and ponding on low-slope areas where rail dust has clogged drainage paths. Homeowners in Commerce call us because they want a Roofing Company in Commerce that already knows what those roofs look like when they are opened up.
Travis Oakley, who leads Brennan Roofing, holds the crews to a standard that does not change from one job to the next. The uniform says who belongs on the property. The written quote says what the work costs. The guarantee says what happens if something fails. Every Commerce customer gets the same thing: live answers on the phone, a written price, and a full year of coverage with a free return visit if a repair or install fails.
Commercial Roofing in Commerce
Commercial Roofing in Commerce is a different discipline from residential shingle work because this city’s building stock leans heavily toward flat-roofed warehouses, truck yards, and light-industrial buildings. These are hot-mop, modified bitumen, and torch-down systems that require a different level of preparation, safety, and code compliance than a house off a residential street. When a Commercial business in Commerce calls us, we quote the roof system it actually has, not a generic shingle price.
Flat and Low-Slope Systems
Most commercial roofs in Commerce are flat or near-flat and built around built-up roofing, modified bitumen, or single-ply membranes. We inspect the roof for ponding, failed flashings at curbs and penetrations, and blisters in the membrane. The estimate reflects the system type and the condition of the deck, because a flat roof fails from water standing where it should not.
What a Commercial Re-Roof Costs Here
A commercial flat roof in Commerce typically runs $9,000 – $22,000 depending on square footage, number of penetrations, and whether the existing system tears off clean or carries hidden deck damage. We write the price before any work begins, no exceptions. That protects a warehouse owner from a quote that moves once the old roof comes off and the deck condition is exposed.
Metal Roof Installation in Commerce
Metal Roof Installation in Commerce makes real sense for homes and commercial buildings sitting under this city’s continuous fallout from the 5/710 interchange and rail yards, because metal sheds soot and particulate far better than asphalt shingles. A standing-seam or metal shingle system costs more upfront, but on a Commerce roof it keeps its appearance and integrity longer, especially on the freeway-facing slopes that collect the worst of the grime.
Standing Seam vs. Metal Shingles
Standing seam panels run vertically and use hidden fasteners, which means fewer penetrations and better water performance on low-slope roofs. Metal shingles look more like a traditional roof but still offer the durability and staining resistance of steel. We walk you through both and price each in writing.
What Metal Costs in Commerce
A metal roof installation in Commerce runs $16,500 – $38,000 for an average residential roof, with commercial standing seam ranging higher based on square footage and deck condition. The price includes underlayment, trim, flashings, and the written guarantee. We quote fixed numbers before work starts, and that number does not move at the door.
Trusted Brands We Service in Commerce
We install materials from manufacturer lines including Atlas, Tamko, and GAF, and we stock common components for fast turnaround on Commerce jobs. If your roof needs a specific Tamko shingle color matched or an Atlas underlayment system rated for this climate, we have straightforward access to it. That means you are not waiting on a special order for a standard repair. These are materials we trust because they hold up to the particulate load this city puts on a roof, and we explain the differences between lines so you can choose with confidence instead of guessing.
Common Roofing Problems We See in Commerce Homes
- Soot-streaked shingles on freeway-facing slopes. Diesel soot and rail dust from the 5/710 corridor and Bandini/Washington rail yards settles onto roof slopes and accelerates granule loss. Darker, stain-resistant shingle lines often hold their appearance years longer here.
- Cupped or delaminated skip-sheathing under old shingle fields. The original board sheathing on post-WWII tract homes near Bandini Boulevard sometimes pulls loose from the rafters once soot-loaded granules hide the early warning signs. Tear-off is when the real scope shows up, which is why we inspect thoroughly before quoting.
- Ponding on flat and low-slope residential roofs. Rail dust and particulate buildup clog drains and low spots, leaving water standing on roofs that were barely sloped to begin with. Ice and water shield at valleys and penetrations becomes critical here.
- Incorrect flat-roof quoting on commercial buildings. A warehouse or truck yard roof is not a shingle job, and bidding it like one leads to a failed flat-work inspection. We quote hot-mop or modified bitumen systems as they are, not as a convenient shingle swap.
Pricing for Roofing Company in Commerce, CA
Roof repairs in Commerce run $450 – $1,800 for most leak fixes, flashing replacements, and small shingle patches. A full shingle re-roof on a standard Commerce tract home runs $6,800 – $14,500. Flat and low-slope commercial work runs $9,000 – $22,000, and metal roofing starts around $16,500 on a residence. What moves the number is the deck condition once the old roof comes off, the pitch, and the number of penetrations. We write the price before any work begins and we do not change that number at the door. Call (361) 320-9467 to schedule a free estimate with actual line-item numbers.
We Also Serve Cities Near Commerce
Beyond Commerce, our crews cover roofing work in Los Angeles, San Diego, San Jose, and San Francisco. If you are in a neighboring city and want a Commerce-standard quote, we bring the same written pricing and the same live-person phone answer to every job we take.
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 Roofing Company in Commerce
Freeway-facing roofs in Commerce collect diesel soot and rail dust from the 5/710 interchange and the Bandini/Washington rail yards, which settles into shingle granules and accelerates wear. Your neighbor’s roof may face away from the freeway and simply get less fallout. The fix is often a darker, stain-resistant shingle line that hides the streaking and holds its appearance longer. Call (361) 320-9467 and we will walk the roof and tell you what you are actually seeing.
When a roof is opened for replacement in Commerce, the permit inspection can trigger code upgrades the older home never had: fascia repair, eave and rake board hardening, improved ventilation, even ice and water shield requirements at valleys and penetrations. We plan for these by inspecting first and writing allowances into the contract, so any surprise is priced and approved in writing before we touch it. Call (361) 320-9467 for a walk-through quote that accounts for what a permit here actually exposes.
We install flat and low-slope systems including hot-mop and modified bitumen, and we install these on both residential and commercial buildings in Commerce. This city is mostly flat-roofed, so a roofing company that only does shingles is leaving out more than half the work here. Call (361) 320-9467 and we will quote the system your roof actually needs.
Compare what is included line-by-line: underlayment type, deck replacement allowance, ice and water shield coverage, ventilation, and the warranty term. A bid that skips deck replacement money will move once the old roof comes off, and a bid without a written guarantee is not a finished price. Our quote is written before work starts and the 365-Day Done Right Promise is in writing for a full year, with a free return visit if anything fails.
Yes, a new roof in Commerce can meet high wind ratings when installed with the right materials and fastener schedule, which matters for the Santa Ana wind events that hit the LA basin. We install systems rated for the wind exposure this area sees, and we can document what was installed so you have a record if an insurance or code question comes up later. Call (361) 320-9467 to talk about wind-rated installation on your specific roof.
Written by Travis Oakley, who leads Brennan Roofing and holds every Commerce job to The Garrison Standard: written pricing before work starts, background-checked uniformed crews, and a one-year written guarantee with a free return visit if anything fails.






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