Metal roofing
Architectural shingles
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 East San Gabriel
Roof replacement in East San Gabriel usually costs between $14,000 and $28,000 for a typical 1,200 – 1,800 sq ft home, with tear-off, decking repair, underlayment, and architectural shingles included. Most jobs on the 1920s – 1950s housing stock here take 3 – 5 working days once the permit is posted. Call Barnwood Roofing at (855) 382-1073 for a free written estimate, and we’ll walk your roof with you before we talk numbers.

East San Gabriel is our kind of work. The homes are older, the lots are tighter, and the roof you have now is rarely the roof the house started with. Ruben Calloway has torn off enough of these layered bungalow roofs to know what we’re going to find before we find it. That means your estimate reflects reality, not a best-case scenario.
Why Barnwood Roofing Is East San Gabriel’s Preferred Roof Replacement Company
We work on a lot of roofs in East San Gabriel because we’re honest about what a roof actually needs. When a homeowner here calls us for a replacement, the first thing we do is inspect the existing layers, the decking, and the attic framing. If the roof can be repaired and get another five years out of it, we’ll say so. That’s the Barnwood way: inspection first, recommendation second. We’re not here to sell you a roof you don’t need. We’re here because when you do need one, you want it done right.
East San Gabriel homeowners tell us the same thing: they’ve had contractors quote a replacement without ever looking in the attic. We handle it differently. Ruben Calloway leads every estimate himself, and he’ll tell you exactly what we’re seeing, what the county will require, and what you can defer. We’ve built our reputation in this unincorporated pocket by being the crew that doesn’t oversell. Seven brands, one honest recommendation.
Because we’re based in Fontana and run crews through the San Gabriel Valley weekly, our response time to East San Gabriel is predictable. You call, we schedule an estimate within a few days, and we hold to the schedule. No driving from two counties away and no handing your project off to a subcontractor we’ve never met.
Styles & brands we work with






Asphalt Shingle Roof Replacement in East San Gabriel
Asphalt Shingle Roof Replacement in East San Gabriel typically runs $12,000 – $20,000 for a standard gable roof on a post-war ranch, depending on the number of layers we’re tearing off and what we find underneath. The job involves removing every layer down to the decking, repairing or replacing rotted sections, installing a synthetic or felt underlayment, flashing all penetrations and valleys, and laying new architectural shingles with a nail pattern that meets county wind requirements. On older East San Gabriel homes, we almost always find decks that need spot replacement around chimneys, plumbing stacks, and the eaves.
When a East San Gabriel homeowner needs asphalt shingles, it’s usually because the existing roof has hit the end of its functional life after decades of San Gabriel Valley sun and Santa Ana wind. We recommend architectural shingles over 3-tab for these homes: the thicker profile stands up better to UV, and the higher wind rating matters when the Santa Anas come through and lift ridge caps on the older tracts.
Tear-off, deck inspection, and new underlayment
On a full replacement, we strip everything down to the framing. That’s the only way to see what’s actually happening on an older East San Gabriel roof. We replace rotted or split decking boards as we go, and we write that allowance into your contract so you know what it costs before we touch it.
Wind-rated shingle installation
The county now requires a six-nail pattern and often a fully adhered ice and water shield in valleys and at eaves on re-roofs in unincorporated areas. We install to that standard whether the inspector asks for it or not. It’s the only way these roofs survive a strong Santa Ana season without lifting.
Roof Replacement is a core service for us, not an add-on, so we carry the material lines and the crew depth to schedule East San Gabriel jobs without farming anything out.
New Roof Installation in East San Gabriel
New Roof Installation in East San Gabriel generally runs $16,000 – $32,000 when we’re building a new roof on an addition, a detached garage, or a full re-frame where the old structure is too far gone to save. This is a different animal from a re-roof. It involves framing or re-framing the roof plane, sheathing it with new decking, installing underlayment and flashing, and then the roofing material itself. For a new build or an addition on a East San Gabriel property, the county requires current code compliance including seismic bracing and fire-rated underlayment.
When a East San Gabriel homeowner needs new roof installation, it’s often because an old garage was never properly roofed in the first place, or because an addition from the 1970s is showing its age and the framing isn’t worth patching. We handle it cleanly: we frame it, deck it, dry it in, and roof it. No handoffs to a separate framing crew.

Detached garages and additions
East San Gabriel has a lot of detached garages from the original 1920s – 1940s builds, and most of them have low-slope or flat roofs that were never flashed well. When we replace those roofs, we re-frame the fascia and add proper edge metal so water stops running down the stucco.
Full re-frame on failed roofs
If the original rafters are rotted or sagging beyond what sistering can fix, we re-frame. We’ll show you exactly what we found before we start, and the price gets approved in writing first. That’s how we keep East San Gabriel jobs honest.
Trusted Brands We Service in East San Gabriel
We install and service roofing systems from Owens Corning, CertainTeed, and IKO, among others, and we stock local parts for East San Gabriel customers so a replacement isn’t waiting on a shipment from out of state. That brand range matters here because older homes often need a specific profile or warranty class to satisfy county fire and wind requirements. We’ll match the product to your roof and your budget. The right material for your roof, not just what we stock. Call (855) 382-1073 and we’ll show you samples and cut sheets before you choose.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in East San Gabriel Homes
- Multiple layers of old wood shingles over skip-sheathing. The 1920s – 1950s bungalows here often carry three or more layers of wood shingles or composition over spaced 1×6 boards. Tearing off to framing exposes gaps, rot, and the need for new decking before the new roof can go on.
- Dry-rotted decking around chimneys and plumbing penetrations. Older East San Gabriel homes rarely had ice and water shield installed at the valleys and penetrations. We find rotted decking around chimneys and vent pipes on nearly every tear-off, and we replace it with new plywood or OSB before underlayment goes down.
- Santa Ana wind damage on ridge caps and low-slope tie-ins. The wind events that whip through the San Gabriel Valley lift ridge caps and crack the underlayment on low-slope built-up roofs. Leaks that show up after the first winter rain often started as wind damage months earlier.
- Code-triggered upgrades once framing is exposed. Because East San Gabriel is an unincorporated LA County pocket, any re-roof that exposes framing triggers county requirements for seismic nailing and fire-rated underlayment. If your contract doesn’t account for that, the inspector’s catch becomes your surprise bill.
Pricing for Roof Replacement in East San Gabriel, CA
Here’s what we’re seeing in East San Gabriel right now. A standard architectural shingle re-roof on a 1,200 – 1,800 sq ft home runs $14,000 – $22,000, including tear-off, decking repair allowance, underlayment, flashing, and new shingles. A larger home or a roof with steeper slopes pushes toward $24,000 – $28,000. A full new roof installation with framing on a detached garage or an addition starts around $16,000 and goes up from there based on square footage and code scope. What moves the number most in this area is what’s hiding under the old layers: rotted decking, outdated attic wiring, and the county’s seismic nailing and fire-rated underlayment requirements. We write allowances into every East San Gabriel contract so you see the line item and approve it before we spend it. Estimates are free and good for 30 days. Call (855) 382-1073 to schedule yours.
We Also Serve Cities Near East San Gabriel
Our crews run Roof Replacement in East San Gabriel weekly, and the same crew handles work in San Gabriel, Rosemead, Alhambra, and San Marino. If you’re a few blocks outside the 91776 boundary, call anyway. We’re already in the area, and the county code requirements don’t change much once you cross the line.
Serving East San Gabriel, CA — Our Local Coverage Area
We’re based in the East 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 East San Gabriel
We stop, show you what we found, and price the fix in writing before we touch it. Rotted decking gets replaced at a per-sheet rate that’s already spelled out in your East San Gabriel contract. Outdated attic wiring that the county flags gets handled by a licensed electrician we bring in, and you approve that cost before we proceed. You’re never committed to an open-ended change order.
We routinely tear off three, four, and sometimes five layers on the older bungalows here. Once we expose the framing, LA County requires seismic nailing and fire-rated underlayment on the new roof. We factor that into your initial estimate so there’s no surprise when the inspector comes. Call (855) 382-1073 and we’ll explain exactly what your home’s layer count means for your price.
Yes. On low-slope and built-up roofs in East San Gabriel, we recommend products rated for 110 – 130 mph uplift and we install a six-nail pattern plus fully adhered ice and water shield in valleys and at eaves. The Santa Anas hit these older tracts hard, and ridge caps and eave edges fail first. We spec the roof to hold through it.
A square is 100 square feet of roof area. When a roofer prices per square, they’re pricing for every 100 sq ft installed. Compare quotes by making sure both include the same tear-off depth, the same decking allowance, the same underlayment class, and the same shingle line. If another contractor’s East San Gabriel quote is much lower, it’s usually because they’re not counting the code upgrades or they’re leaving the decking repair out. Ask them. Then call us at (855) 382-1073.
Yes. We handle tile removal on East San Gabriel’s Spanish-style homes carefully, salvaging what’s reusable and replacing cracked or broken tiles with matching profile. We check the underlayment underneath every section we open, because on these older homes that’s where the real damage hides. You get a fixed price for the replacement before we start pulling tile.
Call Barnwood Roofing at (855) 382-1073 for a free roof replacement estimate in East San Gabriel. We’ll walk the roof with you, show you what we’re seeing, and write a line-item quote that includes the code upgrades and the decking allowance. No pressure, no oversell. Just a straight answer about what your roof needs.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving East San Gabriel and the San Gabriel Valley.