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 San Marino
A full roof replacement on a San Marino estate typically runs $22,000 to $68,000 depending on material and roof complexity, with premium clay tile and slate work at the higher end. Most replacements on the 1910s – 1930s homes here take 5 to 10 working days once materials are on site. We serve all of San Marino zip codes 91108 and 91118, including the historic core around the Huntington Library and the oak-lined streets off Monterey Road and Oak Knoll. Call (855) 382-1073 for a free estimate and we’ll walk your roof before we quote anything.

Why Barnwood Roofing Is San Marino’s Preferred Roof Replacement Company
San Marino homeowners call us because we inspect before we recommend, and we’ll tell you plainly if a repair is enough. That matters here more than almost anywhere in the San Gabriel Valley. The city’s design-review expectations and the age of these estates mean a hasty replacement can cost tens of thousands more than a targeted repair. Our Roof Replacement team has worked streets like Monterey, Oak Knoll, St. Albans, and around Lacy Park, and we understand the difference between a roof that needs replacement and one that just needs flashing and underlayment work.
We also come to San Marino with access to seven manufacturer lines: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That breadth means our recommendation is driven by what your home needs, not by what we happen to stock. On a Spanish Colonial Revival, that might mean matching the original clay barrel profile. On an English Cottage with a steep multi-plane roof, it might mean a heavier architectural shingle that sits right on the eaves. Ruben Calloway, who leads our crew, has spent enough time on San Marino estate roofs to know what design review will accept and what it won’t.
We respond to San Marino within one to two business days for estimates, and we coordinate material staging and tear-off around the city’s working-hours expectations and the mature tree canopy that complicates access on many lots.
Styles & brands we work with






Roof Replacement Contractor in San Marino
A Roof Replacement Contractor in San Marino is doing a different job than one in most neighboring cities. You’re not swapping out a 1990s composition roof on a tract home. You’re working on a 1920s Spanish Colonial Revival or Tudor with original clay barrel tile, complex valleys, and a roof deck that’s been cooking under inland heat for eighty years. A full replacement here means a tear-off sequenced around salvage, an inspection of the existing framing and decking once the old roof is off, and a rebuild that matches both the structural and aesthetic standard the city expects.
In San Marino, a standard full roof replacement on a 2,500 – 4,000 square foot estate runs $24,000 to $52,000. A larger or more complex multi-plane roof with clay tile, slate, or premium architectural shingles runs $45,000 to $68,000. New construction or a full deck replacement adds $8,000 to $18,000 depending on square footage and framing conditions.
Full Roof Replacement
A full replacement on a San Marino estate is a tear-off to the deck, a structural inspection of the framing, new underlayment, and a new roof system matched to the home’s period. We don’t install commodity shingles on a 1926 Mediterranean just because it’s cheaper. We show you the options, price them honestly, and install what fits the architecture and your budget.
Roof Decking Replacement
On older homes in San Marino, the decking is often the real problem. Decades of heat and occasional moisture from oak leaf litter trapped in valleys leaves plywood soft, and a tile roof hides it until the tear-off exposes it. We replace rotted decking as part of the job, price it in writing before we touch it, and flag it during the initial inspection when we can see signs of it from the attic or eaves.
Asphalt Shingle Roof Replacement in San Marino
Asphalt Shingle Roof Replacement in San Marino usually happens on the newer homes east of the historic core, or on older homes where the original roof was already swapped decades ago and design review allows composition. A full asphalt shingle replacement in San Marino runs $18,000 to $34,000 for a typical estate home, depending on pitch, underlayment, and whether decking repair is needed. We stock architectural shingles from GAF, CertainTeed, and Owens Corning, and we can match heavier profiles that sit well on steep Tudor and English Cottage planes.
Many San Marino homeowners are surprised to learn that asphalt shingles don’t have to look like a downgrade. A high-end architectural shingle with a heavier granule surface and a dimensional profile can read as slate from the street, and it costs a fraction of quarried slate or salvaged clay tile. We’ll walk you through the differences at your kitchen table, not over a glossy brochure.

Architectural Shingles
Architectural shingles are the standard we recommend on San Marino homes that aren’t required to carry clay tile or slate. They hold up better under the inland San Gabriel Valley heat than three-tab, they resist Santa Ana-driven debris better, and they’re available in color ways that complement the stucco and half-timber detailing common on the older homes here.
Flat Roofing
Some San Marino estates have flat or low-slope sections over porches, loggias, or additions. We handle flat roofing with proper membrane systems and tapered drainage so water doesn’t pool against the parapet walls. Flat sections on older homes are where we most often find failed sealant and hidden deck rot, because they’re harder to inspect and easy to overlook until water shows up inside.
Trusted Brands We Service in San Marino
We install and service roofing from GAF, CertainTeed, Owens Corning, and IKO, among others. Because we’re not tied to a single manufacturer, we can make honest side-by-side comparisons for San Marino homeowners. Need a clay barrel profile matched to the original 1920s tile on a Spanish Colonial Revival? We source salvaged or reproduction tile that design review will accept. Need a premium architectural shingle that mimics slate on a Tudor? We spec it and price it. The recommendation is built around your roof, your architecture, and your budget.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in San Marino Homes
- Oak leaf litter masking cracked clay tile. The coast live oaks and deodars that line streets like Monterey and Oak Knoll drop limbs and blankets of leaves onto roofs. That debris hides cracked tile and clogs valleys until a winter storm drives water under the failed underlayment and into the ceilings below.
- Heat-baked flashing and sealant failure. Inland San Gabriel Valley heat bakes original 1920s tile and flashing for decades. Sealants around penetrations fail, Santa Ana winds open the gaps, and the roof that looks intact from the street is actually leaking around every pipe boot and valley.
- Soft decking under the tear-off. When we open an older estate roof on a San Marino home, we routinely find decking that’s soft around valleys where decades of oak leaf litter trapped moisture. It’s invisible from the attic and only shows up once the tile comes off.
- Undersized or deteriorated framing triggered by permit inspection. A permit inspection on an older San Marino roof often forces open what was hidden for years. If the framing was undersized or has dry rot at the eaves, the inspector will require correction before we can close the roof back up. That moves the quote, which is why we build written allowances into every San Marino contract.
Pricing for Roof Replacement in San Marino, CA
Here’s what we quote in San Marino as of this year. A full asphalt shingle replacement on a typical estate runs $18,000 to $34,000. A full clay tile or slate replacement runs $45,000 to $68,000. Roof decking replacement adds $8,000 to $18,000 depending on how much of the deck is rotted. New construction or full re-roof on a complex multi-plane estate can push past $70,000. What moves the number is deck condition, framing surprises, material choice, and how much tile needs to be salvaged and reinstalled to pass design review. We give you a written line-item quote before work starts, and any surprise found during the tear-off gets priced and approved in writing before we proceed. Call (855) 382-1073 for a free estimate.
We Also Serve Cities Near San Marino
We work throughout the San Gabriel Valley, including San Gabriel, East San Gabriel, Alhambra, and East Pasadena. If you’re in one of those cities and want the same honest, inspection-first approach, read more about Roof Replacement in San Marino and then call us. The free estimate applies across the whole area.
Serving San Marino, CA — Our Local Coverage Area
We’re based in the San Marino 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 Marino
Because opening an older estate roof in San Marino turns up what no one can see from the ground: soft decking around valleys, dried-out framing at the eaves, and failed waterproofing hidden under decades of heat and leaf litter. A quote that doesn’t account for this is guessing. We handle it differently: inspection first, written allowances in the contract, and any surprise priced and approved in writing before we touch it. Call (855) 382-1073 for a quote that’s built on what’s actually under your roof.
Yes. We salvage reusable original tile during the tear-off and source reproduction tile that matches the 1920s profile when salvage can’t cover the full roof. The city’s design-review expectations on streets like Monterey and Oak Knoll won’t accept a mismatched modern profile, so we sequence the tear-off around preserving the original material, not hauling it away. Call us for an estimate on your tile roof.
The coast live oaks and deodars drop limbs and blanket roofs in leaf litter, which masks cracked tile and clogs valleys. That’s why a roof that looks fine from the street can leak badly in a winter storm. We recommend an inspection at least once a year if you have a heavy canopy over your roof, and we’ll tell you if what we find is repair or replacement. Call (855) 382-1073 to schedule an inspection.
The permit inspection forces open what was hidden for decades. If the decking is rotted, it has to be replaced. If the framing is undersized or dry-rotted at the eaves, the inspector requires correction. If the waterproofing is failed, it has to be redone to current code. This is the single biggest reason a remodel quote moves, and it’s why we write allowances into every San Marino contract and price surprises in writing before we proceed.
Line them up side by side: what’s included in the tear-off, what happens when decking or framing is found rotted, whether the tile is salvaged or replaced, what underlayment and waterproofing system is spec’d, and whether the quote includes permit handling and design-review compliance. A lower bid that doesn’t cover those will balloon once the roof is open. A higher bid that spells them out will hold its number. Ours spells them out. Call (855) 382-1073 for a free quote.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving San Marino and the San Gabriel Valley.