Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Replacement Across San Gabriel
Roof replacement in San Gabriel runs $11,500-$28,000 for a standard asphalt shingle tear-off on a 1,500-2,200 sq ft home, with clay tile and Spanish Revival re-roofs landing between $32,000 and $60,000 depending on decking condition. We serve every block from the Mission District out to the acreage parcels east of Rosemead Boulevard, and a live person answers (945) 303-9821 around the clock. If you’re putting off a replacement because you’re not sure what it’ll actually cost, call us for a written price before anyone touches your roof.
Tilehurst Roofing is a Kingswell family company founded in 2000. We’re not new to San Gabriel’s roofs. We know the 1920s bungalows near Mission San Gabriel Arcángel, the 1950s ranches further east, and the open-lot acreage parcels where county rules apply instead of city ones. That local knowledge changes how we quote, and it changes how the job goes.
Why Tilehurst Roofing Is San Gabriel’s Preferred Roof Replacement Company
Homeowners in San Gabriel come to us after being burned. A no-show crew. A price that jumped at the door. A repair that leaked again three weeks later. Our answer is boringly simple: written price before work starts, a written guarantee handed over before the crew leaves, and a 365-Day Done Right Promise that says if it’s not right, we fix it for a full year after the job. Not a handshake. Paper.
Greg Holloway leads our crews, and every technician on your San Gabriel roof is background-checked and uniformed. You’ll know who is on your property. You’ll have a phone number that rings to a live person at 2 a.m. or 2 p.m. And you’ll get material options from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. The product should fit the home, not whatever happens to be sitting in the truck.
We’re coordinated from the brand’s Los Angeles office, with local crews serving San Gabriel every week. That means response time is measured in days, not weeks, for most replacement quotes. Call (945) 303-9821 and a person picks up.
Roof Replacement Contractor in San Gabriel
As a Roof Replacement Contractor working San Gabriel’s older neighborhoods and open parcels, our typical job starts with a full tear-off to the decking, then underlayment, flashing, drip edge, and the new roofing system, followed by a two-pass magnetic sweep of the property for nails. Homeowners call us when they see granule loss in gutters, daylight through attic sheathing, or tiles sliding out of place after a Santa Ana event.
Full Tear-Off and Decking Inspection
San Gabriel homes built before 1945 near the Mission often have skip sheathing under original clay tile, with no underlayment at all. A replacement here means fully re-sheathing the deck before any membrane goes down. We inspect every board and tell you what needs replacing before we quote, so the written price reflects what the crew will actually find.
Flat and Built-Up Roofs on Valley Boulevard
The commercial strip along Valley Boulevard has a wave of 1980s-to-early-2000s built-up and modified-bitumen flat roofs hitting end-of-life around the same time. We handle flat roofing replacement with proper drainage evaluation, because a flat roof that doesn’t shed water is a roof that fails early.
Asphalt Shingle Roof Replacement in San Gabriel
Asphalt Shingle Roof Replacement in San Gabriel is the most common job we do, and the inland heat here is the enemy. Summers regularly hit 95-105°F and there’s no coastal marine layer to soften the UV exposure, so shingle granule loss runs faster on San Gabriel roofs than on beach-adjacent or higher-foothill homes. A composition shingle installed in 1995 is usually well past its service life by 2025.
Architectural Shingles for Heat and Wind
We recommend architectural shingles for most San Gabriel replacements. The layered construction holds granules better through hot, dry summers, and the thicker profile resists lift during the Santa Ana wind events that sweep down from the San Gabriel Mountains. Atlas and Tamko both make architectural lines that perform well in this specific inland climate.
Roof Decking Replacement
When we tear off old shingles on 1950s and 1960s ranch homes, we often find decking that’s dry, cracked, or water-stained around old nail penetrations. We replace bad sections with new OSB or plywood, and the quote includes an allowance for it, stated upfront. You won’t get a surprise change order at tear-off.
Trusted Brands We Service in San Gabriel
We install and service roofs from seven major manufacturers, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For San Gabriel homes, Boral clay tile matters when matching original Mission District profiles, while Atlas and Tamko architectural shingles fit the ranch and newer builds. Local stock and direct supplier relationships keep turnaround tight for San Gabriel customers, and when you call for a quote, we’ll tell you which product line fits your roof’s slope, exposure, and budget.
Common Roof Replacement Problems We See in San Gabriel Homes
- Original clay tile over skip sheathing with no underlayment. Homes near Mission San Gabriel Arcángel built before 1945 often have S-curve clay tile set in lime-sand mortar over exposed sheathing. Tear-off reveals bone-dry decking that must be fully re-sheathed before any modern system goes down, a cost flat-rate bids from non-local contractors consistently miss.
- UV-baked composition shingles. The inland summer heat and lack of marine buffering accelerates granule loss on shingle roofs. By the time a homeowner sees bare patches, the shingles have typically lost most of their protective surface.
- Drainage failures on flat and low-slope roofs. Valley Boulevard commercial strips and some mid-century ranch additions have built-up or modified-bitumen roofs where standing water near drains and scuppers eats through membranes. Proper slope and drain inspection is part of every flat roof replacement we quote.
- Unpermitted or poorly tied roof sections from past additions. We see additions where old and new roof planes meet with bad flashing or mismatched underlayment. A full replacement is the right time to fix those transitions properly, with new flashing and a continuous underlayment plane.
Pricing for Roof Replacement in San Gabriel, CA
A standard asphalt shingle tear-off and replacement on a San Gabriel home runs $11,500-$28,000, with most 1,500-2,200 sq ft single-story ranches landing in the $14,000-$22,000 range. Clay tile re-roofs on Mission District and historic-sensitive homes start around $32,000 and can exceed $60,000 when full re-sheathing is required. Flat roof replacement starts around $9,000 for smaller Valley Boulevard-adjacent structures. What changes the price: decking condition, number of roof planes, access for equipment, whether the parcel is county-permitted acreage, and whether a detached shop or ADU roof is included. Every quote is written, line-itemed, and free. Call (945) 303-9821 and we’ll send a crew lead out to put numbers on it.
We Also Serve Cities Near San Gabriel
Our crews work throughout the surrounding San Gabriel Valley: San Marino, Temple City, Alhambra, and Rosemead. If you’re in one of these cities and looking for Roof Replacement expertise, the same written-price-before-work standard applies. You can also read more about our service area on our San Gabriel page. Same crews, same guarantee, same live person on the phone.
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
Yes, usually 15-30% more. Roofs on acreage parcels east of the Mission District are permitted through LA County rather than the City of San Gabriel, which pulls in county building review, well and septic setback clearances, and outbuildings that a lot-line city job never touches. Long material hauls down private, unpaved access drives and equipment staging on soft ground add labor and time. Call (945) 303-9821 for a written quote that accounts for all of it before work starts.
Because early 20th-century craftsmen set S-curve clay tile in a lime-sand mortar bed over skip sheathing with no underlayment. There is no membrane between the tile and the attic, so once the tile shifts or the mortar fails, the decking has been exposed to weather for decades. Modern code and manufacturers require a solid, clean deck before any new underlayment or tile system goes down, so full re-sheathing is often mandatory, not optional. We scope it during the quote so the written price reflects it.
San Gabriel sits at the base of the San Gabriel Mountains with summer highs regularly 95-105°F and no coastal marine layer, so UV degradation and granule loss run faster here than in Pasadena’s shadier foothill zones or beach-adjacent markets. Santa Ana wind events also lift clay tile that was never hurricane-strapped under older installation standards. We recommend architectural shingles with strong wind ratings or properly strapped tile systems to match the actual conditions on your San Gabriel roof. Call (945) 303-9821 to talk through what fits your home.
Yes, and we quote it as part of the same job. Acreage parcels and many San Gabriel residential lots include detached garages, shops, and ADUs that need re-roofing at the same time as the main house, often with different slopes or materials. We scope every structure on the property during the estimate, not just the house, so the written price covers the full property. Call (945) 303-9821 and we’ll walk the whole parcel with you.
We check that roof water sheds away from every structure, not just the house. On open lots, runoff from a new roof can undermine a detached shop or ADU foundation within a season or two if the grading isn’t right. Before tear-off we map existing slope and drainage, and after the roof is closed up we re-check grade and downspout discharge so the new roof doesn’t create a new problem at the foundation line. Call (945) 303-9821 for a free replacement quote that includes this check.
Why the Acreage on the East Side Changes Everything
Roofs on the acreage lots east of the Mission District are permitted through LA County rather than the City of San Gabriel, so a replacement here pulls in county building review, well and septic setback clearances, and outbuildings that a lot-line city job never touches. It also means long material hauls down narrow private access and grading that has to be re-established after tear-off so a detached shop or ADU doesn’t take water. A flat-rate quote built for a city lot misses all of that. We scope it before we quote, because we’ve done enough of these to know what it costs.
On an acreage parcel off the east side of the Mission District, we tore off a failed 25-year composition shingle roof on the main house plus a detached shop roof half a day’s haul from the street. The skip-sheathed, mortar-set tile on the original section had no underlayment, so we fully re-sheathed the deck, ran ice and water shield and a modern underlayment, set new drip edge and flashing, and tied the shop’s ridge vent and soffit venting into the same system before closing it up. That job, and jobs like it, are why we quote acreage differently.
If you’re in San Gabriel and your roof is nearing the end, or you’re not sure, call (945) 303-9821. We’ll schedule a free estimate, put a written price in your hands before any work starts, and back the replacement with the 365-Day Done Right Promise. No voicemail, no callback queue, just a live person who knows San Gabriel roofs.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving San Gabriel and the surrounding San Gabriel Valley.