Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Commerce
Roof repair in Commerce typically costs $350 – $900 for targeted fixes like flashing or shingle work, while larger structural repairs run $1,500 – $4,500 depending on decking and code upgrades. Most jobs are completed in one to two days once materials are on site. If you’ve spotted a stain on the ceiling or lifted shingles after a rain, call (833) 589-7850 and we’ll walk the roof, find the actual problem, and give you a straight answer on what it takes to fix it.
We spend a lot of time in Commerce, and we know the city’s roofs are not like most of LA County. This is a place where warehouses and rail yards sit shoulder to shoulder with older tract homes, and flat commercial roofs outnumber pitched shingle roofs. The repairs we quote here reflect that reality. Whether you’re dealing with ponding water on a low-slope porch roof over by Veterans Park or wind-torn shingles near the 5, we know what to look for before we quote, not after we open things up.
Why Bedrock Roof Repair Is Commerce’s Preferred Roof Repair Company
Commerce homeowners call us because we lead with inspection before we talk replacement. Our name states the sequence: repair when possible, replace only when necessary. Alan Cofield built the company on that principle, and every estimate starts with a documented evaluation of what the roof actually needs. Seven leading roofing manufacturers, including GAF, CertainTeed, and Owens Corning, are available through us, so if a repair means matching an existing shingle line or upgrading a membrane, we’re not locked into one supplier’s catalog.
We’re in Commerce regularly, which means we know the permit flow at City Hall and how industrial zoning affects even the residential jobs. That local familiarity saves time on the job, because we don’t arrive to a house and have to study the roof like we’ve never seen a 1950s tract home before. We have. And we know exactly where they fail.
Styles & brands we work with






Storm Damage Roof Repair in Commerce
Storm Damage Roof Repair in Commerce is less about dramatic wind events than it is about what happens after winter rains sit on flat surfaces and work into older flashing. The city’s commercial and industrial buildings, alongside dense older housing, take heat all summer and then get hit with concentrated rain in the winter. When that rain finds a seam that the sun has baked open, it shows up as a wet ceiling, a dark streak down an exterior wall, or a rust-colored stain around a penetration.
A typical storm damage repair in Commerce runs $400 – $1,200 for flashing replacement, vent boot resealing, or localized shingle replacement. If the decking underneath is compromised, that jumps to $1,800 – $3,500 because we’re cutting out damaged wood and replacing it before putting the roof back. On flat commercial roofs, the cost is tied to the size of the membrane repair and the condition of the existing surface.
What We Find After a Storm
Mostly we find deteriorated flashing at wall intersections where water has been entering slowly for months. On low-slope porch roofs, we find ponded water that sat long enough to find a path through cracked mastic or a failed seam.
Documentation Before Any Work Starts
We photograph what we find, show you the damage, and write the scope in plain language. If you need a quote for insurance, we’ll provide line items. You approve the repair before we touch it.
Metal Roof Repair in Commerce
Metal Roof Repair in Commerce covers both the standing-seam and corrugated metal roofs on the city’s warehouses and industrial buildings, and the occasional residential carport or patio cover. Sun exposure is the constant here. Fasteners loosen as panels expand and contract through the hot summers. Neoprene washers dry out and crack. Then the first winter rain finds those openings and starts rust streaks down the building’s exterior.
Typical metal roof repair in Commerce for a commercial bay runs $500 – $1,800 depending on the number of fasteners to replace, the length of seam to re-secure, and whether we’re patching panels or replacing them. A residential metal roof or carport repair is usually in the $350 – $900 range.
Fastener and Seam Failure
Most leaks on metal roofs in Commerce trace back to worn fasteners. We replace them with properly sized, sealed fasteners rather than just caulking over the old ones and calling it done.
Sealing Penetrations on Metal Roofs
HVAC units, vents, and old swamp cooler openings are prime leak points. We remove old dried sealant, clean the surface, and install proper pipe boots or curb flashing that will outlast a tube of caulk.
Trusted Brands We Service in Commerce
We install and repair products from seven roofing manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters in Commerce because the city’s roof stock ranges from mid-century asphalt shingles to modern TPO and modified bitumen on commercial buildings. If your home needs a Roof Repair team that can match an Atlas shingle line or replace a failing IKO valley, we’re equipped for it. We keep common flashings, vent boots, and sealants stocked for quick turnaround on typical Commerce jobs, and we order the rest through local suppliers we’ve used for years.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Commerce Homes
- Deteriorated flashing at wall intersections on low-slope porch roofs. The combination of Commerce’s summer sun and winter rains causes sealant joints to fail where a porch roof meets the house wall. Water gets behind the flashing and rots the fascia and soffit before it ever shows up as a ceiling stain inside.
- Undersized or deteriorated 1950s-era sheathing. Many Commerce tract homes were built with 1×6 skip sheathing or thin plywood that does not meet current code. When shingles are torn off, the decking often shows sag between rafters, which is why shingles crack along valleys and at eaves.
- Failed sealant around old swamp cooler and attic vent penetrations. Dried mastic from decades ago lets wind-driven rain into attic spaces. In Commerce’s older homes, we see this constantly, especially where the original cooler pad was removed and the opening was never properly closed.
- Ponding water on flat commercial and residential roof sections. Commerce has a lot of flat roof area relative to most LA County cities. Clogged drains and settled roof sections hold water after winter storms, and that standing water accelerates membrane breakdown and finds any seam that has begun to open.
Pricing for Roof Repair in Commerce, CA
Here’s what you can expect to pay for common repairs on Commerce roofs. A vent boot replacement is typically $250 – $450. A flashing repair at a wall intersection runs $400 – $900. A shingle replacement job on a small roof section is $500 – $1,200. On the larger side, replacing rotted decking and re-sheathing before installing new shingles can run $1,800 – $4,500 depending on how much rot is found and what the permit inspector requires. Flat roof membrane patches on the many low-slope buildings in Commerce typically cost $600 – $2,500 based on the size and condition of the membrane.
The factors that move the price: how much decking needs to be replaced, whether the roof has multiple layers that must be torn off first, what the city’s permit process requires once the roof is open, and which material system you choose. We quote these as line items. You’ll see the materials, labor, and disposal separated so you know exactly what you’re paying for. Call (833) 589-7850 to schedule your free estimate.
We Also Serve Cities Near Commerce
Bedrock Roof Repair serves Commerce along with Commerce area neighbors including Maywood, Bell, Cudahy, and Bell Gardens. If you’re in any of these surrounding communities and need a roof looked at, the same inspection-first process applies.
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 Repair in Commerce
Expect that the sheathing may not meet current code. In Commerce’s mid-century tract homes, original roof decks are often 1×6 skip sheathing or thin plywood that has sagged between rafters over time. Once we tear off the old shingles, the inspector may require new solid decking, usually 7/16-inch OSB, before we can install the new roof. We write this possibility into the estimate up front as an allowance, so you’re not blindsided if it happens. Call (833) 589-7850 for an estimate that covers this scenario from the start.
Commerce’s zoning map is heavily industrial, which means the city’s building department is oriented toward commercial and industrial work. Residential reroofs still need permits, and the inspectors often apply commercial-grade structural scrutiny to residential tear-offs. That can mean additional sheathing requirements or bracing upgrades before the roof can be signed off. We pull all permits, schedule the inspections, and handle the process so you don’t have to navigate it yourself.
Many flat roofs in Commerce were built with minimal slope, and decades of sun and heat cause the roof structure to settle unevenly, creating low spots. When winter rain falls, water collects in those low spots and has no path to the drains. Standing water accelerates membrane deterioration and eventually finds a seam. The fix is often clearing and repairing drains, or adding tapered insulation to restore slope. Call (833) 589-7850 to have your flat roof evaluated.
Yes. We handle metal roof repair on both Commercial and residential buildings in Commerce. The most common issues are loose fasteners, worn neoprene washers, and failed sealant at penetrations. We replace fasteners with properly sized, sealed components and install new pipe boots or curb flashing rather than layering caulk over failing joints. Pricing depends on the roof area and extent of the damage, but typical metal roof repairs run $350 – $1,800.
A square is a roofing term for 100 square feet of roof area. Contractors quote material and labor in squares, so knowing your roof’s square count helps you compare repairs and reroof bids directly. For repairs, the square count determines how much felt, shingles, or membrane you need, and whether existing materials can be matched. We’ll measure your roof and show you the math in writing. Call (833) 589-7850 for a free roof repair estimate in Commerce.
Written by Alan Cofield, Owner at Bedrock Roof Repair, serving Commerce and surrounding LA Basin communities.