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 usually costs between $350 and $1,400 for a typical leak or flashing fix, while larger tear-off work on older homes runs $4,800 to $9,500. Most jobs we handle in Commerce are diagnosed within one visit, and we’ll give you a written line-item quote before any work starts. If you’re seeing water stains on a ceiling or daylight through the attic, call (866) 282-5070 and we’ll get someone out to look.
Commerce sits in a strange spot for roofing. The 90101 zip covers a dense mix of 1950s tract homes off Eastern Avenue and sprawling flat-roofed warehouses along the rail corridors and the 5 freeway. That blend means our crew has to be fluent in two very different roofing languages: residential low-slope composition roofs and large flat commercial-style membranes. We’re one of the few Roof Repair teams working Commerce that keeps both skill sets sharp. Rick Dunnigan, our owner, has built the company around that breadth, not around pushing one product line.
Why Buena Park Roof Repair Is Commerce’s Preferred Roof Repair Company
We’ve spent enough time in Commerce to know the housing stock. The residential streets north of Washington Boulevard hold mid-century tract homes with original shallow-pitch roofs, many of them patched over multiple times with whatever was cheap. The commercial corridors along Slauson Avenue and Bandini Boulevard are a completely different animal. Homeowners appreciate that we don’t pretend otherwise.
What sets us apart is something you’ll feel in the estimate. We stock or can quickly source parts for seven major shingle brands: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That means when a repair calls for matching an existing roof, we’re not stuck telling you to accept a close-enough color or a different profile. We match the material, not the budget pitch.
We also offer a standalone roof inspection in Commerce with no repair commitment attached. You get a written condition report, photos, and a straight answer about whether a repair makes sense or whether re-roofing is the honest call. Rick Dunnigan’s approach is simple: repair when possible, replace when necessary. That philosophy is why Commerce homeowners call us back.
Styles & brands we work with
Roof Leak Repair in Commerce
Roof Leak Repair in Commerce is the service we run most often, and the sequence matters. A leak usually shows up as a ceiling stain near a wall, a drip during the first hard rain, or a musty smell in a closet. In Commerce’s older homes, the real leak source is frequently not where the stain is. Water travels along rafters, pools at a valley, and exits fifteen feet away. We trace it back, not just patch the exit point.
Leak repair on a typical Commerce home runs $350 to $850 when it’s a single flashing failure, a cracked vent boot, or a small section of damaged shingles. If the leak has been running for months and the decking is soft, the number climbs. We’ll show you photos of what we found before we ask you to spend another dollar.
Flashing and Vent Boot Replacement
Flashing is the metal transition where the roof meets a chimney, wall, or dormer. In Commerce’s heat, old flashing expands and contracts until the sealant fails and the metal cracks. We replace it with the right gauge for the pitch and secure it with compatible sealant, not generic caulk.
Vent boots are the rubber collars around plumbing stacks. They bake hard and split in about eight to ten years under Commerce’s sun. A split boot is a quiet leak that rots decking from the top down. Replacement is usually under $400.
Valley Repair on Older Tract Homes
Valleys are the V-shaped channels where two roof planes meet. On 1950s and 60s Commerce homes, the original valley metal is often corroded through, and previous owners may have covered it with roofing cement. We cut out the old valley, inspect the sheathing underneath, replace the ice-and-water membrane where required, and install new valley metal or woven shingles. A valley repair on a Commerce home typically runs $450 to $1,100 depending on length and decking condition.
Emergency Roof Repair in Commerce
Emergency Roof Repair in Commerce means something specific here: a branch through the decking during a Santa Ana wind, or a flat roof leaking into an active workspace after a hard winter rain. We prioritize these calls because water intrusion doesn’t wait. In most cases, we can get a tarp or temporary seal on a Commerce roof within a day, then schedule the permanent repair right after.
Emergency leak response in Commerce generally runs $450 to $900 for a tarp, temporary seal, and water-mitigation prep when the damage is isolated. If the deck is soaked and the section needs to be cut out and re-decked, that’s structural, and you’re looking at $1,400 to $3,200 depending on the square footage. Every emergency scope gets a written line-item quote. No one starts cutting before you approve the number.
Flat Roof Patch on Warehouses and Home Additions
Commerce has a lot of flat and low-slope roofing: on warehouses, on garage additions, on enclosed patios. A flat roof patch means cleaning the area, cutting back the failed membrane, priming, and applying a compatible repair layer. On older built-up roofs, we often find old asphalt mastic cracking at the seams. A patch runs $500 to $1,200, but we’ll tell you honestly if the membrane is too far gone for patchwork to hold more than a season.
Storm and Wind Damage Response
When a Santa Ana wind event rips shingles off a Commerce roof, the exposed underlayment becomes a countdown. We match missing shingles by brand and color from our seven-manufacturer portfolio so the repair doesn’t look like a patch job. Wind damage repair typically falls between $375 and $1,000, assuming the underlying deck is sound.
Trusted Brands We Service in Commerce
We’re authorized to install and warranty products from seven leading manufacturers, which matters more in Commerce than in most places. The 90101 zip has such a wide mix of roof types and ages that a single-brand roofer simply can’t match existing materials accurately. We work with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For a partial repair on an older IKO or Atlas roof, we can source the matching shingle rather than telling you to re-roof the whole plane. Choose your material, not ours.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Commerce Homes
- Asphalt-mastic patches that mask real damage. Commerce’s older homes often have multiple layers of silver aluminum coating and black mastic over failed underlayment. These patches seal out water briefly, but the saturated decking underneath keeps rotting. We see it constantly near the rail corridor.
- Ponding on low-slope roofs. The original 1950s and 60s tract homes were built with shallow pitches that don’t shed water fast enough. When flashing around vent stacks and valleys fails, water backs up and sits. Under summer heat above 100°F, that ponding accelerates sealant failure and deck rot.
- Failed drip edge and rafter tails. Older Commerce homes often lack proper drip edge, so water wicks back under the shingle edge and rots the rafter tails. By the time a homeowner sees a stain, the wood is usually soft. This turns a simple repair into structural work.
- Smog-cracked vent boots and sealant. Commerce’s air quality isn’t just a health concern. Ozone and heat degrade rubber and sealants faster here than in coastal cities. Vent boots and pipe collars that would last ten years in Long Beach fail in six or seven in Commerce.
Pricing for Roof Repair in Commerce, CA
Here’s what we quote on most days in Commerce. A shingle replacement for a small leak runs $350 to $800. Flashing repair runs $400 to $850. Flat roof patches run $500 to $1,200. Valley repair runs $450 to $1,100. A full tear-off on a smaller mid-century Commerce home usually lands between $4,800 and $9,500, with larger homes or custom work above that. What moves the number is what we find under the surface: soft decking, undersized rafters, code upgrades triggered by the permit. We’ll give you a free estimate with a line-by-line scope. Call (866) 282-5070 to schedule one.
We Also Serve Cities Near Commerce
If you’re just outside the 90101 boundary, we run regular routes through Maywood, Bell, Cudahy, and Bell Gardens. The housing stock and roofing failure patterns are similar across the southeast LA basin, so our crew shifts between these cities without missing a beat. If you’re in Commerce or any of the surrounding areas, Roof Repair in Commerce is one call away at (866) 282-5070.
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
Because the leak you see today is rarely the first leak the roof has had. On many Commerce homes, previous owners or handymen covered problems with asphalt mastic and aluminum coating instead of fixing the underlying damage. The result is a roof with saturated underlayment and soft decking hiding under multiple patch layers. Once we open that area up, the rot often extends far enough that a patch would be irresponsible. We price the repair and the tear-off separately so you can see the numbers and decide with full information. Call (866) 282-5070 and we’ll show you what’s actually under your shingles.
Yes, often. When a repair on an older Commerce home requires pulling a permit and opening the roof structure, the inspector may require upgrades to meet current code. The most common in Commerce are improved attic ventilation, additional hold-down clips, and upgraded underlayment fastening. We factor those requirements into our quote before work begins, and we handle the permit and inspection process. You won’t get a surprise charge after the roof is open. Call (866) 282-5070 and we’ll walk you through what your specific roof would trigger.
Start by looking at what each bid actually covers. A lower Commerce bid often excludes the decking repair, the permit, or the code upgrades. Ask each contractor to itemize the decking replacement allowance, the underlayment type, and whether the price includes permit fees. If a bid won’t put those in writing, treat it with skepticism. Our quotes always include a line for allowances and a written approval process for anything we find once the roof is open. That’s the only way to compare numbers honestly.
Yes. When a winter storm hits Commerce, we prioritize calls from residents with active water intrusion. We can usually get a temporary seal or tarp in place the same day or next morning, then schedule the permanent repair once the roof is dry enough to work safely. A tarp and temp seal for a storm-related leak in Commerce typically runs $450 to $900. Call (866) 282-5070 as soon as you see water. The sooner we get there, the less decking gets wrecked.
It depends on the roof’s age, the decking condition, and how many patch layers are already up there. A repair on a relatively sound roof, with properly matched shingles and new flashing, will hold up fine. But if the roof is original to the 1950s or 60s, or if it’s been patched repeatedly with mastic, we’ll tell you straight: a repair buys time, not permanence. Our inspections are designed to distinguish those two situations before you spend anything. The inspection exists for that exact purpose.
Ready for a real assessment? Call (866) 282-5070 and we’ll schedule a free estimate or a standalone roof inspection. We’ll tell you what your Commerce roof actually needs, not what’s most profitable for us to sell.
Written by Rick Dunnigan, Owner at Buena Park Roof Repair, serving Commerce since day one.