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, CA typically runs $350 – $950 for targeted fixes like shingle replacement, flashing repair, or flat-roof patching, and most jobs are completed in a single day once we’re on site. Commerce’s building stock is unusual: mid-century stucco homes with low-slope roofs sit a few blocks from tilt-up warehouses with built-up flat roofs, and both fail differently than the pitched shingle roofs you’d find in Downey or Bellflower. We’re a roofing-only contractor in Norwalk, so our crews are in Commerce regularly. If you’re seeing water stains, lifting shingles, or pooling at a scupper, call (866) 617-1004 for a free estimate. We’ll diagnose first and spend second.
Why True North Roof Repair Is Commerce’s Preferred Roof Repair Company
Homeowners in Commerce call us because we’re roofing specialists, not general contractors. Every technician on our crew works exclusively on roof systems: shingles, flat membranes, flashing, underlayment, drainage. That focus matters when you’re dealing with the sun-baked low-slope roofs common across Commerce’s residential streets and the built-up roofs covering its industrial corridor.
Noel Ibarra leads our team with a repair-first philosophy. We stock and install materials from seven major manufacturers including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so product recommendations are driven by what actually fits your roof and budget, not by whatever brand we happen to be locked into. Homeowners near the Commerce Casino and along Slauson Avenue have told us the same thing: they wanted a straight answer about whether a repair would hold, not a pitch for a full replacement. That’s the answer we give.
We carry materials for both residential shingle work and commercial flat-roof coating, which is rare for a roofer in this part of LA County. That means when a Commerce homeowner calls about a leaking low-slope roof on a mid-century house, we’re not guessing at the fix. We’ve already handled the same membrane system on a warehouse off Bandini Boulevard that week.
Written by Noel Ibarra, Owner at True North Roof Repair, serving Commerce since our founding in Norwalk.
Styles & brands we work with
Shingle Roof Repair in Commerce
Shingle Roof Repair in Commerce usually involves replacing wind-lifted or sun-cracked asphalt shingles on the modest single-family homes that line streets east of the LA River. On a typical job we replace the damaged shingles, check the underlayment beneath them, and re-secure any drip edge that Santa Ana winds have started to peel away. In Commerce’s specific climate, the failure usually starts at the roof’s edges and penetrations, where wind gets under the shingle and the sun has already baked the sealant brittle. A standard shingle repair in Commerce runs $350 – $750 depending on how many squares are involved and whether the underlayment has been exposed.
When Shingle Damage Needs Immediate Attention
If you can see missing shingles from the street, or you’ve noticed granules collecting in your gutters after a wind event, the roof is losing its protective layer. The next rain will find whatever decking has been exposed. On Commerce’s older homes, decking is often original mid-century plywood that swells fast once wet, which turns a $400 shingle patch into a $1,200 decking repair.
What We Check Before Replacing Shingles
Before we nail down a single shingle, we look at what’s underneath. On homes near the Commerce rail corridor, we often find the original underlayment has fused to the sheathing from decades of heat. If the seal is compromised, new shingles won’t fix the leak. We confirm the deck is solid, the underlayment is intact, and the flashing at penetrations is still doing its job. Then we lay the new shingles, matched as closely as possible to your existing roof.
Storm Damage Roof Repair in Commerce
Storm Damage Roof Repair in Commerce is mostly wind-driven, not rain-driven. The Santa Ana winds that blow through the LA basin each fall scrape across flat and low-slope roofs, lifting drip edge, peeling back membrane at the corners, and tearing shingles loose before any rain even arrives. After a wind event, the damage is often invisible from the ground but obvious from a ladder: lifted flashing, exposed underlayment, blistered built-up roofing at the edges of warehouse roofs. Storm repair in Commerce typically costs $400 – $950 depending on whether we’re repairing wind-scoured edges on a residential roof or re-coating a built-up commercial roof that has started to delaminate.
Wind-Lifted Flashing and Drip Edge
The edges of a roof take the most abuse in Commerce’s wind conditions. Drip edge that’s pulled away from the fascia exposes the underlayment, and once the underlayment is exposed, the next rain event drives water straight into the roof structure. We re-secure or replace the metal, then re-seal the transition so wind can’t catch it again.
Built-Up Roof Blistering on Commercial Buildings
On Commerce’s flat-roofed warehouses and trucking terminals, storm damage shows up as blisters in the built-up roof where wind has broken the surface seal and trapped air between the plies. Left alone, those blisters crack open and let water into the building. We cut out the damaged section, patch the plies, and roll a coating that stands up to UV and the next wind season. Roof Repair on these systems is not a residential job; it requires a crew that handles commercial flat roofs regularly.
Trusted Brands We Service in Commerce
We service shingle and flat roofs from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Commerce homeowners, that breadth matters in a practical way: if your mid-century home has a low-slope roof that needs a coated membrane, we can match the existing system without tearing everything off. If you’re repairing a shingle roof, we can quote in whichever brand fits your budget and the look you’re after. We stock common repair materials for these brands locally, so turnaround on Commerce jobs doesn’t have to wait on a special order from a distributor across the county. One accountable contractor, seven top-tier brands.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Commerce Homes
- Ponding at scuppers on low-slope roofs. Many Commerce homes built in the 1950s and 60s have roof drains that were sized for a different era. After even a modest rain, water pools at the scupper and sits there for days, degrading the coating and eventually finding a seam or penetration.
- Sun-cracked coatings on flat and low-slope membranes. The inland LA sun is relentless. On Commerce’s flat roofs, the coating breaks down from UV exposure long before the membrane itself fails, leaving seams exposed and vulnerable to the first winter rain.
- Wind-scoured roof edges along the freeway corridors. Homes and buildings near the I-5 and Bandini Boulevard corridors take more wind than protected residential streets. We see lifted drip edge and flashing that has been peeled back, exposing the underlayment beneath.
- Failed flashing around older roof penetrations. Mid-century Commerce homes often have plumbing vents, swamp cooler mounts, or old antenna penetrations that were flashed decades ago. The metal corrodes, the sealant dries, and water follows the penetration straight into the ceiling.
Pricing for Roof Repair in Commerce, CA
Here’s what we see in Commerce’s market, based on the work we’ve done across this city:
- Shingle replacement (small area, 3 – 10 shingles): $350 – $650
- Flashing repair at a penetration or chimney: $300 – $600
- Flat roof patch (coating and membrane repair): $450 – $850
- Built-up roof blister repair (commercial): $600 – $1,400
- Scupper/drainage correction on a low-slope roof: $500 – $1,200
The biggest variable in Commerce is what we find once the roof is opened. On older homes, the decking or underlayment is often more damaged than the surface indicated. We handle that with a written scope of work before we touch the roof, and if we find something unexpected, you approve the change in writing before we proceed. No pricing surprises. Call (866) 617-1004 and we’ll put the exact numbers in front of you.
We Also Serve Cities Near Commerce
True North Roof Repair works throughout this part of southeast LA County. Beyond Commerce, our crews regularly handle roof repair in Maywood, Bell, Cudahy, and Bell Gardens. If you’re in one of those neighboring cities and dealing with a leaking roof, the same free estimate applies. We know the housing stock and the failure modes across this whole corridor.
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
Pooling at the scupper means the roof’s drainage path has failed, usually because the low-slope roof has sagged slightly over decades or the scupper itself is undersized for the roof area. On Commerce’s mid-century homes, the original roof framing often settled just enough to create a low spot at the perimeter, so water backs up there after even a light rain. The fix is correction of the drain path, not just patching the surface. We re-pitch the low area using tapered materials, replace the scupper if it’s too small, and roll a fresh coating so water sheds instead of sitting. Call (866) 617-1004 for a free estimate on drainage correction.
Yes. Commerce is a two-market roofing city: modest single-family homes with shingle and low-slope roofs sit alongside a large industrial corridor of tilt-up warehouses and trucking terminals with built-up flat roofs. We work both. Our crews carry materials for residential shingle repair and commercial flat-roof coating on the same truck, which is unusual for a roofing contractor in this area. The same team that repairs a shingle roof off Slauson Avenue can be re-coating a warehouse off Bandini Boulevard the next day.
On a mid-century Commerce home, opening up a roof usually reveals one or more of three things: underlayment fused to the sheathing from decades of heat, decking that’s water-damaged around old penetrations, or framing that was undersized from the start. We recently opened a water-stained ceiling on a stucco house off Slauson Avenue and found the flat-roof scupper clogged and the coating sun-cracked to the seams; pulling the decking revealed rot and undersized framing around a penetration that had leaked for years. We replace what’s compromised and put the new roof together so water moves off instead of pooling. The point of our inspection-first approach is that you know the scope before a dollar is committed.
Ask three questions: what happens if you find additional damage once the roof is opened, whether the price includes the materials you actually want from the brands you’ve chosen, and whether the contractor handles both shingle and flat-roof work in Commerce specifically. If a quote doesn’t address what’s under the shingles or membrane, it’s not a real quote. We write the scope, include allowances for likely findings on a mid-century Commerce roof, and any change is priced and approved in writing before we proceed. That’s how a Commerce roof repair quote should work.
Commerce sits in the hot, dry inland LA basin with intense summer sun, occasional Santa Ana winds, and rare but impactful winter rain. That combination breaks down flat-roof coatings and shingle sealant long before the membrane or shingle itself fails. On flat and low-slope roofs, UV-cracked seams open first. On shingle roofs, the edges lift in wind and the sealant has already been cooked brittle by the sun. Repair in Commerce has to account for both of those forces, which is why we check drainage, re-secure edges, and use coatings rated for inland sun exposure. Call (866) 617-1004 to have us look at your specific roof.
Written by Noel Ibarra, Owner at True North Roof Repair, serving Commerce and the surrounding southeast LA County area.
Ready to know exactly where your roof stands? Call True North Roof Repair at (866) 617-1004 for a free, no-pressure estimate in Commerce. We’ll lay out the options. You choose the path.