Roof Replacement in Altadena — Written Price, Workmanship Warranty

Fast, Reliable Roof Replacement Across Altadena

Roof replacement in Altadena runs $14,000 – $32,000 on a typical single-family home, and the price depends heavily on what we find once the old roof comes off. If you’re in 91001 or 91003 and still working through Eaton Fire damage, your insurance adjuster will want documentation before approving a tear-off. That’s where we come in. Koreatown Roofing has been walking Altadena homeowners through post-fire roof replacements since 2025, and we know exactly what adjusters in this ZIP code ask for, what the older hillside homes hide, and how to price the job so you’re not blindsided. Call us at (866) 974-2271 for a free estimate, and we’ll start with an honest roof inspection, not a sales pitch.

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Key Takeaways

• Full roof replacement in Altadena typically costs $14,000 – $32,000 depending on roof size, decking condition, and fire damage repair.
• Eaton Fire claims in 91001/91003 almost always require photo documentation of charred fascia and ember-scarred vents before the adjuster approves a tear-off.
• Pre-1950s Craftsman and hillside homes commonly hide rotten decking, failed underlayment, and charred framing that changes the scope once walls are open.
• We work with seven manufacturers including GAF, CertainTeed, and Owens Corning, so you get real material choice, not a take-it-or-leave-it brand.
• Free estimates, written line-item pricing, and every change order approved in writing before we touch the roof.

Why Koreatown Roofing Is Altadena’s Preferred Roof Replacement Company

We do one trade: roofing. That’s inspection, repair, and replacement. Nothing else. When you hire a general contractor to replace your roof in Altadena, you’re often getting a middleman who subcontracted the work to a crew they’ve never met. When you hire us, the company that quotes the job is the company that tears off the old shingles, repairs the decking, and installs the new system. Manny Cordero runs our crews, and he’s the one who walks your roof before we quote a single dollar.

The Eaton Fire changed how roofing works in this community. We’ve handled dozens of replacements across 91001 and 91003 where adjusters initially denied claims because no one documented the charred fascia or ember-penetrated attic vents. We photograph everything. Before. During. After. That documentation is the difference between an approved claim and a five-figure out-of-pocket surprise. We’ve also spent enough time on Altadena’s winding canyon driveways and narrow hillside lots to know that material staging here doesn’t work like it does down in Pasadena.

And yes, we actually show up when we say we will. Altadena residents have enough to deal with right now. The last thing they need is a roofer who ghosts them after the estimate.

Roof Replacement Contractor in Altadena

As a Roof Replacement contractor working throughout Altadena, we take on full tear-off and replacement jobs for older craftsman homes, mid-century ranchers, and hillside custom builds from East Altadena Drive to the canyon lots above Lake Avenue. A full replacement here means removing everything down to the decking, photographing the entire roof assembly, repairing or replacing damaged framing and sheathing, installing new underlayment and flashing, and then laying the new roof system you chose. Most Altadena roofs we replace fall between $14,000 and $32,000, with the final number driven by square footage, decking repairs, and whether we’re working through an insurance claim or a straight retail job.

When a Full Deck Inspection Changes the Quote

Older Altadena homes rarely give up their secrets until the old roof is off. Original wood shakes from the 1920s sit on top of decking that’s been quietly rotting for decades. Failed underlayment lets water into the eaves. And after the fire, we routinely find charred fascia at the roof-wall junction that was invisible from the ground. We write allowances into every contract for decking replacement and framing repair, so when we find damage, the price is already agreed. No change orders you didn’t authorize.

Hillside Access and Material Staging

Canyon lots in 91003 often have driveways too narrow for a full lumber drop. We’ve hand-carried squares of shingles up switchback paths more times than we can count. It slows the job down and adds labor cost, which is why a roof on a steep, winding hillside lot in Altadena prices differently than the same footprint on a flat Pasadena grid. We plan staging before we start, tell you exactly what the access situation adds, and put it in writing.

Asphalt Shingle Roof Replacement in Altadena

Asphalt shingle roof replacement is the most common full system we install in Altadena, and for good reason. Architectural asphalt shingles from GAF, CertainTeed, or Owens Corning handle the intense sun, Santa Ana wind events, and seasonal rain this foothill community throws at a roof, and they’re priced in a range most homeowners can work with. For a typical Altadena home between six and nine roofing squares, an architectural shingle replacement runs $14,000 to $24,000, not including decking repairs. If the home is larger or has a complex roofline with multiple gables and dormers, that number pushes toward the high $20,000s.

Fire-Resistant Assembly Choices for 91001/91003

After the Eaton Fire, we recommend a full assembly approach, not just a shingle swap. That means Class A fire-rated shingles, ice and water shield in the valleys, a properly vented ridge, and ember-resistant attic vents. Several Altadena homeowners we’ve worked with had attic vents with ember scarring that let burning material into the attic space. Closing that vulnerability is the point of the replacement, not an add-on.

Architectural vs. Original Wood Shakes

If you live in one of Altadena’s pre-1950s Craftsman homes with original wood shakes, switching to architectural asphalt shingles changes the roof’s weight and ventilation profile. On a 1920s house, we check framing capacity and attic airflow before we quote the swap. Done right, you get a roof that outperforms the original and meets current fire code. Done wrong, you get trapped heat and an HOA or design review headache. We handle it the right way.

Trusted Brands We Service in Altadena

We install GAF, CertainTeed, and Owens Corning systems regularly in Altadena. We’re not married to any one manufacturer, and that matters. When a homeowner off East Altadena Drive wanted a CertainTeed architectural shingle with a specific color profile to match their neighborhood’s aesthetic, we didn’t have to talk them into whatever one brand had in stock. We quoted the CertainTeed system that fit the house and the budget. We carry the local material relationships for fast turnaround on supplemental orders, and we can usually get a full shingle drop scheduled within days of a signed contract, even up the canyon roads that slow other crews down.

Common Roof Replacement Problems We See in Altadena Homes

• Charred fascia and ember-scarred attic vents. The 2025 Eaton Fire left homes that look fine from the street but carry hidden burn damage at the roof-wall junction and around the attic vents. Without photo documentation, insurance adjusters deny the claim. We photograph everything and submit it in the format they expect.
• Rotten decking under original wood shakes. Pre-1950s houses in Altadena often have cedar shakes nailed to skip sheathing, and decades of moisture have softened the boards. Once we tear off, the decking is frequently unsalvageable, and that’s a code-triggered replacement, not an upsell.
• Multiple gables and complex flashing details. Altadena’s custom-built craftsman homes have dormers, valleys, and intersections that a tract-home roofer never sees. Each one is a potential leak point. We flash them correctly, which means chip-out and step flashing at every junction, not caulk and hope.
• Narrow hillside driveways that block equipment access. Canyon lots above Lake Avenue often can’t fit a tear-off dump trailer or a full material truck. Our crews hand-carry what they can’t drive up, which is slower and costlier, but it’s the only way to do the job without damaging the property.

Pricing for Roof Replacement in Altadena, CA

We Also Serve Cities Near Altadena

Our roofing crews serve Pasadena, La Cañada Flintridge, East Pasadena, and San Marino, so if you’re just outside the 91001 or 91003 ZIP codes, we can still help. That said, Altadena’s post-fire insurance reality and hillside housing stock are unique, and that local knowledge is exactly why homeowners here call us first. Call (866) 974-2271 and we’ll schedule your free roof inspection.

FAQs About Roof Replacement in Altadena

Get Your Free Altadena Roof Replacement Estimate

If your roof is still wearing marks from the Eaton Fire, or if you’re just ready to replace an old system before the next Santa Ana season, call us. We’ll inspect the roof, document what we find, and give you a line-item written estimate for free. Manny Cordero and the Koreatown Roofing crew know Altadena’s older homes, its hillside lots, and its insurance timeline better than anyone coming up from outside the community. Call (866) 974-2271 and let’s get your roof sorted.

Written by Manny Cordero, Owner at Koreatown Roofing, serving Altadena roof replacement with real material choice and neighborhood accountability.