Metal roofing
Architectural shingles
Tile roofing
GAF
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across San Gabriel
Roof repair in San Gabriel usually runs $350 – $1,900 depending on what’s actually wrong once we open things up. Most repairs we handle in the 91775, 91776, and 91778 zip codes are done in a single day. If you’re seeing water stains on a ceiling or cedar fragments piling up in your gutters after a heat wave, call us at (866) 974-2271 for a free inspection.
We know San Gabriel’s housing stock the way only a local roofing crew can. The Mission District’s 1920s Spanish Colonials behave differently than the 1960s tract homes east of San Gabriel Blvd. That matters when you’re deciding between a $400 flashing fix and a $3,200 redeck. Koreatown Roofing does only roofing, and our Roof Repair team has opened enough San Gabriel roofs to know what’s hiding under the old shake before the first shingle comes off.
Why Koreatown Roofing Is San Gabriel’s Preferred Roof Repair Company
We’re roofing specialists, not generalists. Every job we take is a roof job. That focus means our crew knows the difference between a nail pop on a 2005 CertainTeed install and the split skip sheathing under a 1938 cedar shake roof. Both show up as leaks. One’s a two-hour patch, the other’s a full redeck. San Gabriel homeowners call us because we explain that difference in plain English before any money changes hands.
Our reputation travels street by street through San Gabriel. When we fix a leak near the San Gabriel Mission Playhouse, neighbors ask who did the work. That’s how we’ve built trust here. Manny Cordero, who runs our crew, answers the phone himself and shows up on job sites in San Gabriel. You’re not getting a call center or a rotating crew. You get the same people from inspection to final walkthrough, and they know exactly what happened on your roof last time.
Styles & brands we work with






Storm Damage Roof Repair in San Gabriel
Storm damage roof repair in San Gabriel is usually tied to the Santa Ana wind season from late September through November. Dry gusts off the mountains lift shingle tabs, tear flashing, and send tree limbs into low-slope roofs across the San Gabriel Valley. We see it every year between the Mission District and the newer developments south of Las Tunas Drive.
A typical storm damage call in San Gabriel runs $475 – $1,400, depending on how many shingles tore loose and whether the underlayment stayed intact. Most of it is shingle replacement and flashing re-sealing. We document everything with photos, write the scope line by line, and get your approval on the price before we start. No change order surprises.
Wind-Raised Shingles and Lifted Flashing
Santa Ana winds find every weak spot on a San Gabriel roof. Old shingles with brittle seal strips let go first, usually at the eaves and rakes. Flashing at chimneys and vent pipes takes the next hit. We re-seal what’s sound, replace what’s torn, and tell you honestly if the rest of the roof is going to survive another wind season. Some roofs are worth patching. Some aren’t.
Debris and Impact Repairs
Limbs from mature camphor and magnolia trees around San Gabriel’s older neighborhoods come down hard in wind events. When a branch punches through a roof, we tarp it fast, then repair the decking and match the surrounding shingles as closely as the material allows. On older roofs, a repair like this often reveals decking that was already deteriorating. We’ll show you photos and walk you through what we found before proceeding.
Metal Roof Repair in San Gabriel
Metal roof repair in San Gabriel covers a range of systems on mid-century apartment buildings, patio covers, and the occasional custom metal panel roof on newer rebuilds. The most common problems are failed fasteners at the EPDM washers, seam separation at the panel lap joints, and rust-through at roof penetrations. Our San Gabriel team sees all three within a few miles of the San Gabriel Mission.
Metal repairs here run $550 – $1,800 depending on the panel profile and how many fasteners need replacement. Sheet metal work costs more than shingle repair per square foot, but the fix usually lasts longer when the underlying issue is addressed properly. On metal roofs, the fastener is the weakest point, and heat cycling in San Gabriel’s inland summer will find every worn washer before the winter rains arrive.
Fastener and Seam Repairs
Metal panels expand and contract through San Gabriel’s 90-degree summer days and cool winter nights. That movement eventually causes screws to back out and panel seams to open. We replace the old fasteners with fresh ones that seat correctly, re-close the seams, and treat the areas where moisture has already started to work. Ignoring a small leak on a metal roof is a losing game.
Penetration and Curb Sealing
Exhaust fans, plumbing vents, and HVAC curbs are where metal roofs in San Gabriel leak. The boot flashings degrade under UV exposure much faster than the metal panels themselves. We strip out the old sealant, inspect the surrounding metal for rust-through, and re-seal the penetration with materials that hold through heat waves and Santa Anas. It is a small repair that prevents a much larger one.
Trusted Brands We Service in San Gabriel
Your roof, your material choice. When we quote a repair in San Gabriel, we’re not limited to whatever one manufacturer happens to have in stock that week. We work with GAF, CertainTeed, Owens Corning, and IKO, among others, so you get a recommendation based on what fits your roof and your budget rather than what’s easiest for us to source. Need to match an existing CertainTeed architectural shingle on a 2015 install near Alhambra? We’ll get it. Want the fire-rating of Owens Corning on a roof near the historic district? That’s a straightforward spec. We stock the materials we use most for San Gabriel homes so the common repairs don’t wait on supply chain swings.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in San Gabriel Homes
- Split skip sheathing under old wood shake. The 1×4 boards under pre-war cedar roofs in the Mission District have dried and split over 80+ years of heat cycling. Fasteners won’t hold, and any repair that opens the roof turns into a redeck once we start checking the substrate.
- Failed underlayment at valleys and eaves. Clay tile and low-slope built-up roofs on mid-century homes east of San Gabriel Blvd often hide cracked waterproofing where two roof planes meet. Heat bakes the felt, Santa Anas dry it further, and leaks start before the surface material shows damage.
- Brittle cedar fragments in gutters. Late-summer heat waves in San Gabriel cause old shake roofs to shed. Homeowners find the evidence in downspouts and valleys weeks before a leak shows on the ceiling. It’s a warning sign that the roof’s service life is over.
- Flashing failures at chimneys and vents. Pre-war and mid-century homes throughout the 91775 and 91776 zip codes have original flashing that has outlived its sealant. Once the bond gives out, water finds the gap and works down into the framing. The flashing repair itself stays simple; the framing repairs underneath are what move the quote.
Pricing for Roof Repair in San Gabriel, CA
Here’s what San Gabriel homeowners should expect when we quote the common repairs.
- Shingle replacement: $350 – $650 for a small section, $800 – $1,500 for a larger wind-damaged area
- Leak repair (flashing or vent boot): $400 – $900 depending on access and number of penetrations
- Flashing repair: $450 – $1,100 for chimney, wall, or valley flashing on typical San Gabriel homes
- Flat roof patch: $500 – $1,200 for built-up or modified bitumen roofs; larger areas move toward $1,800
- Vent boot repair: $250 – $500 per boot when the surrounding shingles are sound
- Valley repair: $600 – $1,400 when waterproofing at the valley has failed but framing is intact
Costs move when we find split skip sheathing requiring a redeck, soft fascia from long-running leaks, or a permit trigger for a Class A assembly upgrade. We write those allowances into the contract before we begin and price every change order in writing before we touch the roof. Estimates are free. Call (866) 974-2271 to schedule one.
We Also Serve Cities Near San Gabriel
Our repair crews cover East San Gabriel, San Marino, Alhambra, and Rosemead regularly. The housing there has the same pre-war bones and mid-century infill we know from San Gabriel, and we handle it with the same care. If you’re nearby and wondering whether a roof is worth repairing, call us. We’ll give you the same straight answer we’d give a neighbor in the Mission District.
Serving San Gabriel, CA — Our Local Coverage Area
We’re based in the San Gabriel 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 San Gabriel
Very often, yes. In San Gabriel’s Mission District and other pre-war neighborhoods, the original shake sits on 1×4 skip sheathing that has dried and split over 80+ years of inland heat. Those boards cannot be re-nailed to current code, so any repair that opens the roof usually triggers a plywood redeck before new underlayment can go on. We will identify that early and price it as an allowance in the contract so nothing surprises you later. Call (866) 974-2271 for an inspection and a written quote.
In some areas, yes. The historic overlay and Mission-adjacent aesthetic can constrain what materials are acceptable for reroof projects, and even repair work on visible slopes may need to match the existing character. We work with GAF, CertainTeed, Owens Corning, and IKO to find materials that satisfy the overlay requirements and perform well in San Gabriel’s climate. If your street has design restrictions, we’ll tell you what’s allowed before you commit to a material.
We stop work and document it with photos. Once we open a San Gabriel roof and find soft fascia, rotted decking, or split skip sheathing, the repair scope changes and so does the price. We write a change order that shows exactly what we found, what the fix requires, and what it costs, and we get your written approval before proceeding. Nothing gets hidden in the final bill. Manny Cordero’s rule is simple: no work without a signed scope.
The short answer is deferred maintenance on aging homes. A large share of San Gabriel’s housing stock is 30+ years old, with roofs that are past service life and leaking in isolated spots rather than failing everywhere at once. When the rest of the roof has a few years left, a targeted repair makes financial sense. When the decking is compromised throughout, repair becomes throwing good money after bad, and we’ll tell you that straight. We’ll show you the evidence either way.
The big questions are: how many squares is the repair actually covering, and what is the wind rating on the materials going back on? San Gabriel is not in a coastal wind zone, but Santa Ana gusts can exceed 60 mph in exposed pockets. The shingles we replace should meet the building code wind requirements for the area, not just whatever is cheap. We’ll show you the spec on the quote and explain why it matters for the windy months. Estimates are free, so you lose nothing by asking.
If you have a leak, a wind-damaged roof, or the gutters full of cedar fragments, call (866) 974-2271 to schedule a free inspection. We’ll show you what’s actually happening up there and give you the honest price before any work begins.
Written by Manny Cordero, Owner at Koreatown Roofing, serving San Gabriel and the surrounding San Gabriel Valley communities.