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 Replacement Across South Pasadena
Roof replacement in South Pasadena runs $16,500 to $42,000 for a typical 1,500-square-foot home, depending on material, tear-off scope, and what the permit inspection uncovers once the deck is open. Most jobs take four to eight working days, though historic-preservation review can extend the timeline on pre-1940 properties. We’ve worked on Craftsman bungalows off Fair Oaks and Spanish Revivals near the Arroyo Seco, so we know what the city’s design-review process asks for before we ever set a ladder against the fascia. Call (855) 382-1073 to schedule a free estimate.

Why Barnwood Roofing Is South Pasadena’s Preferred Roof Replacement Company
Ruben Calloway built Barnwood Roofing on a simple promise: inspection first, recommendation second. That matters in South Pasadena more than most places, because pushing a full replacement on a home that only needs targeted repair doesn’t just waste money. On a 1930s Spanish Revival with original clay tile, the wrong call can put you in front of a historic-preservation review you never needed to trigger.
We carry seven manufacturer lines, GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so the product recommendation we make is matched to your roof’s performance needs and your budget, not to whatever’s sitting in our warehouse. That multi-brand access is why homeowners off Monterey Road and Mission Street keep calling us back. We also perform repairs as a core service, which eliminates the financial incentive replacement-only shops have to oversell a new roof. If repair is enough, we’ll tell you so.
Our crews know the 91030 and 91031 zip codes. They know the mature tree canopy over streets near Garfield Park drops debris that clogs valleys. They know the Santa Ana winds hit the Arroyo Seco corridor harder than the flats. And they know a quote is a number, not a promise, until the deck is opened and the permit inspector has signed off. That’s how trust actually works.
Styles & brands we work with






Flat Roof Replacement in South Pasadena
Flat Roof Replacement in South Pasadena means something specific here. A good number of mid-century homes built between the 1940s and 1960s in the 91030 zip carry low-slope or flat roof sections over additions, garages, and patio covers. Those roofs fail differently than pitched ones. Standing water after the intense winter rains we get off the Arroyo Seco works into seams and flashing before you ever see a stain on the ceiling. On a recent job near Orange Grove, the homeowner called about a “small leak” and we found the entire underlayment saturated because a valley had been clogged with sycamore debris for two seasons.
Flat roof replacement in South Pasadena typically runs $9,500 to $18,000 for a single-story addition or detached garage, depending on square footage, decking condition, and whether we’re installing modified bitumen, TPO, or a built-up roof. The lower number assumes the decking is sound. From what we see here, the decking is rarely sound.
Decking and Underlayment Reality Check
Opening a flat roof on a 60-year-old South Pasadena home usually reveals rotted sections of plywood or OSB at the seams where water sat. We quote the decking replacement as a written allowance in the contract, so you see what it costs per sheet before we pull a single piece. No surprises. No “we’ll figure it out later.”
Design-Review and Flat Roofs
If the flat roof section is on a historically designated property or visible from the street, the city may restrict the membrane color or the edge profile. We’ve done enough of these to anticipate the requirement and show you the compliant options up front.
Roof Installation in South Pasadena
Roof installation in South Pasadena covers two situations: full replacement of an existing roof, and new construction or additions that need a roof from scratch. The replacement side dominates here, because so much of the housing stock dates to the 1920s and 1930s and many roofs are at or past their service life. On a new addition, the permit path is usually cleaner, but the same design-review standards apply if the property sits in a historic district.
Full roof installation on a standard South Pasadena home runs $18,000 to $42,000 for architectural asphalt shingles, with higher numbers for homes that require clay tile salvage, significant decking replacement, or custom flashing work. We use CertainTeed and Owens Corning architectural shingles on many of these homes because they hold up under the hot, dry summers and the Santa Ana wind gusts that funnel through the arroyo.

When the Permit Inspection Changes the Scope
Once walls and roofs are open, the city’s permit inspection often triggers code upgrades that were not visible before. We handle this by building a realistic allowance into every South Pasadena quote, then pricing any surprise in writing and getting your approval before we proceed. The quote moving is not a failure of the quote. It’s the reality of working on a century-old house.
Salvage and Re-Set for Period Homes
On designated Spanish Revival homes, the city may require an underlayment-only re-roof, meaning we lift the original clay barrel tiles, replace the failed underlayment below them, and reset the salvaged tile. We have done this on multiple properties near the Arroyo Seco corridor. It is meticulous, slow work, and it is the only way to keep the historic review satisfied.
Trusted Brands We Service in South Pasadena
Barnwood Roofing installs and services roofing systems from seven manufacturers, including CertainTeed, Owens Corning, IKO, and Atlas. That breadth means you’re not stuck with whichever brand a single-partner shop happens to stock. We can compare product tiers across manufacturers, show you performance differences in writing, and let you choose the price point that fits. For South Pasadena’s older homes, we stock locally what the period profiles demand, and we pull custom orders quickly through our Fontana yard so the job doesn’t stall waiting on materials.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in South Pasadena Homes
- Preservation review for pre-1940 homes. South Pasadena has one of the densest inventories of Craftsman and Spanish Revival homes in the San Gabriel Valley. If your property is designated, the city may require material matching, salvage of original tile, or an underlayment-only scope. We prepare that documentation before the first day of tear-off.
- Rotted skip sheathing under old wood shingle. The original roofs on many 1920s bungalows used skip sheathing, wide-gapped boards that are now soft at the seams. Once the old shingle comes up and the inspector sees it, the permit requires replacement. That’s a common quote mover, and we’ll show you the allowance in the contract before we start.
- Clogged valleys from the mature tree canopy. Streets around Garfield Park and the Arroyo Seco are thick with sycamore, oak, and eucalyptus. Debris backs up in valleys and gutters, and the intense winter rain that follows forces water under aging flashings. We see leak callbacks on roofs that are only ten or twelve years old because of this.
- Broken clay barrel tile on 1920s Spanish Revivals. Those original tiles are effectively irreplaceable. New clay tile does not match the profile or patina. Breaking them during tear-off is not an option, which is why we lift by hand and salvage every reusable piece.
Pricing for Roof Replacement in South Pasadena, CA
An architectural shingle roof replacement on a 1,500-square-foot South Pasadena home runs $18,000 to $32,000. A flat roof section runs $9,500 to $18,000. A full replacement on a designated Spanish Revival requiring clay tile salvage, new underlayment, and code decking correction can reach $42,000 or more. The spread is driven by three things: whether the property is under historic review, what the decking looks like once the old roof is off, and the material you select. We price allowances for decking and framing repair in writing at the start, so you can compare bids honestly. Call (855) 382-1073 for a free, detailed estimate.
We Also Serve Cities Near South Pasadena
Barnwood Roofing handles Roof Replacement work throughout the San Gabriel Valley. From South Pasadena, our crews regularly take jobs in Alhambra, South Pasadena, Pasadena, San Marino, and San Gabriel. Same crews, same inspection-first approach, same seven-brand material access.
Serving South Pasadena, CA — Our Local Coverage Area
We’re based in the South Pasadena 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 South Pasadena
Because homes built before 1940 often hide rotted skip sheathing, undersized framing, and failed underlayment that aren’t visible until tear-off, and the city’s permit inspection requires those items be corrected to current code. We write realistic allowances for decking and framing into every South Pasadena quote, and we price any additional discovery in writing for your approval before we proceed. Call (855) 382-1073 for an honest, detailed estimate.
Yes, and in many designated properties the city’s historic review will require exactly that. We lift the original clay barrel tiles by hand, salvage the sound pieces, replace the failed underlayment and any rotted decking below, and reset the tile. It is an underlayment-only re-roof, and it’s the only way to preserve the 1920s material profile the review board looks for.
We start by checking whether your property is designated and what the current review standards ask for. Then we document the existing roof condition, prepare the material-match or salvage plan, and file the paperwork with the city before any tear-off begins. Short answer: we do the review prep for you. Long answer: call (855) 382-1073 and we’ll walk you through what applies to your address.
The Arroyo Seco corridor gets hit harder by Santa Ana wind events, which stress flashings, valley metal, and ridge lines. Add the mature tree canopy dropping debris into gutters and valleys, plus the intense but infrequent winter rain that then backs up under aging penetrations, and you get a roof that ages faster than the same roof would on a flat, open lot in Alhambra. We see it in our inspection data across the 91030 zip code.
Put the two quotes side by side and look at four things: the underlayment spec, the decking allowance, the material brand and tier, and whether the contractor handles the historic review paperwork. A low bid without a decking allowance is not a low bid, it’s a quote that will move the week the roof is opened. We write every allowance in plain language so you can compare honestly. For a free quote, call (855) 382-1073.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving South Pasadena and the San Gabriel Valley since [year].