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 Replacement Across San Gabriel
Roof replacement in San Gabriel usually runs between $11,000 and $28,000 depending on the material, roof size, and whether the existing underlayment and decking can be reused. On many of the city’s mid-century ranch and Spanish-style homes, the job is less about a full tear-off and more about what’s happening underneath the surface. If you’re noticing cracked tiles, damp ceiling spots after rain, or granules in the gutter, call us at (866) 650-8319. We work throughout San Gabriel including 91775, 91776, and 91778, and we start with an inspection, not a sales pitch.
Why Gable Roof Repair Is San Gabriel’s Preferred Roof Replacement Company
Our crews know San Gabriel’s housing stock because we’ve worked on it for years. The single-story stucco ranches in 91775 and the Spanish-influenced homes along Las Tunas Drive and near the Mission District have their own set of roof problems. Original clay tile from the 1950s, spaced sheathing underneath, old felt that’s turned to dust. A roofer who only does shingle tear-offs on newer homes won’t catch what’s happening on these roofs. We do.
Neil Drummond, who leads Gable Roof Repair, built the company around a repair-first approach. The name isn’t a marketing angle. It’s how we scope every job. When a San Gabriel homeowner calls us about a leak, we don’t jump to a replacement quote. We inspect, identify the actual failure point, and recommend the fix that matches the roof’s condition and the homeowner’s budget. Sometimes that’s a repair. Sometimes it’s a replacement. Either way, the recommendation comes from the roof, not from our sales targets.
We’re certified to work with materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters in San Gabriel because so many homes here have original tile, wood shake, or older architectural shingle profiles that need to be matched or carefully transitioned. A single-brand installer will try to sell you their brand. We work with your roof’s brand, not ours.
Styles & brands we work with
Flat Roof Replacement in San Gabriel
Flat Roof Replacement on a San Gabriel home costs between $8,500 and $19,000 on average, though the final number depends on the roof’s square footage, the condition of the existing membrane, and whether any structural repairs to the decking are needed. Many San Gabriel homes have flat sections over enclosed patios, additions, or detached garages, and these areas fail faster than pitched roofs because water doesn’t drain the same way. After a dry Valley summer, the existing membrane can crack and split at the seams. When winter rain arrives, the leak is already waiting. We replace flat roofs with manufactured membrane systems rated for the San Gabriel Valley’s UV exposure, and we always check the drainage slope before we install anything. A flat roof that doesn’t drain is a flat roof that will leak again.
Membrane and Decking Replacement
On older San Gabriel homes, the flat roof over a converted patio or garage often has original 1960s or 1970s felt still in place. The felt is gone; it’s just sitting there. We strip it, inspect the decking, replace any rotted sections, and install a properly adhered membrane with new flashing at all walls and penetrations. This is the part that keeps water out for the next 20 to 30 years.
Drainage and Slope Correction
Flat roofs in the 91776 and 91778 ZIP codes were sometimes sloped too shallow from the start. If the roof holds water for more than 48 hours after a rain, the membrane will fail early no matter what product is installed. We correct low spots and add tapered insulation where needed before laying the new roof. It’s extra scope, but it’s the difference between a roof that lasts and one that doesn’t.
Roof Installation in San Gabriel
A full Roof Installation on a new construction or major remodel in San Gabriel typically runs from $12,000 to $30,000, depending on the roof footprint, pitch, and the shingle or tile profile the homeowner selects. This is different from a replacement in one important way: there’s no old roof to strip, so the decking goes down fresh and the underlayment is installed from scratch. For San Gabriel homeowners adding an ADU, a detached shop, or a second-story addition, the roof installation is part of a larger build, and the permitting path often runs through Los Angeles County rather than the city. That changes the inspection schedule and the paperwork. We’ve handled enough of these to know what the county inspector wants to see before they sign off.
New Construction and ADU Roofing
When a San Gabriel property owner adds a detached ADU or workshop, the roofing scope includes more than just shingles. There’s sheathing, underlayment, flashing, and often a connected gutter and drainage plan. We coordinate with the general contractor and the county inspector so the roof is signed off without a second trip. Delays on a county project are normally tied to missing roof paperwork, and we don’t let that happen.
Asphalt and Architectural Shingle Installation
Most new roofs in San Gabriel go down in architectural shingles because they hold up to the Valley heat better than three-tab. We carry full lines from GAF, CertainTeed, Owens Corning, IKO, and Atlas. The shingle choice changes the warranty length and the installed price, and we show you the real numbers for each so you can decide with your eyes open. No single-brand upsell.
Trusted Brands We Service in San Gabriel
We install and service roofing systems from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. On a San Gabriel replacement, that means we can match your existing roof rather than force you into whatever brand our shop happens to carry. It also means stock and parts for common San Gabriel roof profiles are available quickly when a repair is needed mid-project. If your landscape contractor dropped a tile and you need a match, we can usually source it. Seven brands, one standard of installation. That’s the way we work.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in San Gabriel Homes
- Failed underlayment under intact clay tile. Homes built between the 1940s and 1970s in 91775 and 91776 often still have their original felt underlayment. The tile on top looks fine, but the felt underneath has disintegrated. The first heavy winter rain pushes water through the tile seams and into the house.
- Original wood-shake roofs on spaced sheathing. Older San Gabriel homes with wood shake roofs don’t have solid decking underneath. That means any replacement requires new sheathing, which changes the scope and the cost. It also means the old roof was never sealed the way a modern roof is.
- Low-pitch stucco tract homes with poor drainage. On single-story ranches with near-flat rooflines, water pools against fascia boards and soffits. Rot follows. By the time a homeowner sees peeling paint or soft wood, the drip edge and nearby decking are usually compromised.
- Santa Ana wind damage to ridge caps and flashing. Foothill wind gusts stress the ridge and hip caps on tile and shingle roofs across San Gabriel. Loose ridge caps let water in at the highest point of the roof, which then runs down rafter lines and shows up as a ceiling stain far from the actual leak.
Pricing for Roof Replacement in San Gabriel, CA
For a typical 1,600 to 2,200 square foot single-story home in San Gabriel, a full asphalt shingle replacement runs $12,000 to $18,000. Architectural shingle upgrades land between $15,000 and $22,000. Clay tile replacements, where the tile itself must be replaced rather than lifted and reused, start around $20,000 and can exceed $35,000 on larger Spanish-style homes. The biggest wild cards in San Gabriel are underlayment and decking condition. Homes with original 1950s underlayment and spaced sheathing need more material and more labor before the new roof goes down. For an exact number on your roof, call (866) 650-8319. Estimates are free, and we give you a line-item breakdown before any work starts.
We Also Serve Cities Near San Gabriel
Beyond San Gabriel, our crews regularly handle roof replacements in Roof Replacement in San Gabriel neighboring communities including East San Gabriel, San Marino, Alhambra, and Rosemead. We know the housing stock in each of these areas, and we’re familiar with local permit offices and how they differ from San Gabriel’s. If your property is on the border of any of these cities, we can tell you which jurisdiction your roof falls under and what that means for your permit timeline.
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 Replacement in San Gabriel
If you’re replacing a roof on the primary home within San Gabriel city limits, the city permit applies. But if the roof work is on a detached ADU, shop, or outbuilding on an acreage parcel, Los Angeles County often has jurisdiction instead. County inspectors will want to see that well and septic setbacks are verified before they approve the roof. We pull the right permit for the right agency so the project doesn’t stall at final inspection. Call (866) 650-8319 if you’re unsure which authority applies to your property.
If a boom truck or material lift can reach the roof, the job moves faster and costs less. On larger San Gabriel properties with long driveways, tight gates, or structures blocking access, shingles and tear-off debris have to be hand-carried or shuttled. That adds labor and time and shows up on the estimate before you sign, not as a surprise. We scope access during the free inspection and include it in the quote. Call us at (866) 650-8319 to schedule that site visit.
In most 91775 homes built before 1975, the tile is still sound but the underlayment beneath it is not. Felt laid 40 to 60 years ago degrades even in the dry Valley climate, and homeowners only find out after water seeps through during the first winter rains. We replaced a failed underlayment on a 1950s Spanish-style stucco ranch in the 91775 ZIP code, where the original clay tile was still in place but the felt beneath had disintegrated. Our crew carefully lifted and stacked the existing tile, installed new GAF underlayment and ice and water shield in the valleys, replaced cracked tiles, and re-flashed the penetrations, restoring the roof without a full tear-off. The homeowner avoided the cost of new tile and the roof has stayed dry through two rainy seasons. If you haven’t had your tile roof inspected in years, call (866) 650-8319. We’ll tell you what’s actually underneath.
Yes, we can match most existing architectural shingle profiles because we work with materials from seven manufacturers, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. If your roof has storm damage or failed decking in one section, we can source a close color and profile match and blend the repair so it doesn’t look patched. We’ll also give you an honest read on whether a partial replacement makes sense or whether the rest of the roof is close enough to end of life that a full replacement is the better financial call. Either way, the number is free. Call (866) 650-8319.
On larger San Gabriel lots, groundwater and runoff often pool against the fascia and soffit, and that constant moisture rots the wood along the roof’s edge. Before we quote a replacement, we look at the grading and downspout discharge points. If the ground slopes toward the house, we may recommend adding drainage corrections so the new roof’s drip edge isn’t sitting in water. We include that scope in the estimate so the final price reflects the real job. For a free assessment of your roof and site drainage, call (866) 650-8319.
Written by Neil Drummond, Owner at Gable Roof Repair, serving San Gabriel and the surrounding San Gabriel Valley communities.