Architectural shingles
Metal roofing
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 Repair Across Altadena
Roof repair in Altadena runs $350 to $1,400 for most leak and shingle fixes, with full re-decking and fire-rated upgrades on older homes ranging from $9,000 to $18,000 depending on square footage. If you’re at the base of the San Gabriels with a newer leak, we can usually assess it within 48 hours. For pre-war homes with original skip sheathing, expect a more involved scoping process before any quote is final. Call (866) 361-0798 and we’ll walk the roof with you before we recommend anything.
Why Ridge Cap Roof Repair Is Altadena’s Preferred Roof Repair Company
We know Altadena’s housing stock better than most roofers working this side of Pasadena. The Craftsman bungalows along Mariposa Street, the Spanish Colonials near the Country Club, the ranch tracts off Lake Avenue – each ages differently and fails differently. Our Roof Repair team has spent enough time in 91001 and 91003 to know what a 70-year-old roof in Altadena needs before we climb the ladder.
Noel Cardenas runs every inspection and repair call personally. That means when you call about a leak near Loma Alta Drive, the person who shows up is the person who owns the decision on how to fix it. No middlemen, no estimator who hands your file to a crew you’ll never meet. Altadena homeowners consistently tell us the same thing: they wanted a straight answer on repair versus replacement, and they got one without a sales pitch.
The Eaton Fire changed how every roofer should approach Altadena. Homes that survived now face a different inspection standard, and insurance carriers are asking harder questions about what is actually on the roof. We inspect before we recommend. If a repair makes sense, that’s what we quote. If the skip sheathing won’t support new underlayment, we’ll tell you that too, and explain exactly why the price changes.
Styles & brands we work with






Commercial Roof Repair in Altadena
Commercial Roof Repair in Altadena operates under county jurisdiction rather than city, which changes the permitting path for properties zoned commercial or mixed-use along Lake Avenue and in the business corridors near Altadena Drive. The work often involves low-slope membrane systems, standing seam metal, or built-up roofing that has been exposed to years of intense sun and ember fall. Repair costs for commercial properties in Altadena typically start at $850 for small membrane patches and climb to $6,000 or more when multiple penetrations, curb flashing, or drainage issues are involved.
County Permitting and Commercial Scope
Los Angeles County reviews commercial roofing permits differently than single-family residential. A repair that replaces more than a defined percentage of the roof surface may trigger a requirement to bring the entire assembly up to current fire code. We handle that conversation with the county directly so you know the full scope before anyone tears off a single shingle.
Ember-Resistant Details on Flat Roofs
Commercial flat roofs in Altadena’s FHSZ zones collect embers around penetrations, HVAC curbs, and parapet walls. We replace deteriorated boots, re-flash curb corners, and seal seams with materials rated for the urban-wildland interface. Seven manufacturers. One crew. The material choice depends on what is already on the roof and what the county will approve.
Roof Leak Repair in Altadena
Roof Leak Repair in Altadena usually starts with a valley, a vent boot, a cracked tile, or a failed patch around a chimney. Older homes near Rubio Canyon and the foothills above New York Drive often have multiple small entry points rather than one obvious hole. A basic leak repair in Altadena runs $350 to $900 when the decking is sound and the underlayment is still intact. If the leak has rotted decking or the home still has original skip sheathing, the job becomes a structural repair and the price moves accordingly.
Valley and Flashing Failures
Valleys carry more water than any other part of the roof in Altadena’s winter rain bursts. When valley flashing corrodes or the shingle overlap breaks down, water channels under the field shingles and travels sideways before it shows up on the ceiling. We remove the valley, inspect the underlayment beneath it, and rebuild the detail with proper metal gauge and overlap.
Vent Boots and Chimney Leaks
Rubber vent boots dry out and crack under Altadena’s summer heat, then leak during the first strong rain. A vent boot replacement is usually under $500. Chimney leaks are trickier – the counter-flashing on older Altadena bungalows was often set into mortar that has since cracked. We re-mortar, re-flash, and seal so the leak stops at the source, not just at the stain on your ceiling.
Trusted Brands We Service in Altadena
We carry and install materials from CertainTeed, Owens Corning, and IKO, among others, so an Altadena homeowner is never locked into one manufacturer’s product line or warranty tier. If your existing roof is Atlas and the damage is localized, we match Atlas. If the fire marshal or insurance carrier calls for a full tear-off, we walk you through the Class A options across multiple brands. Parts and material runs for Altadena jobs come from local supply yards, which means a repair off Lincoln Avenue is not waiting on a warehouse shipment across the county. The right material for your roof, not the one we happen to stock deepest.
See the difference
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After
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Before
AfterCommon Roof Repair Problems We See in Altadena Homes
- Skip sheathing on pre-war bungalows. Original 1×6 boards spaced up to 10 inches apart cannot legally receive new Class A underlayment or architectural shingles. Any repair on these roofs triggers a conversation about solid decking, and the price changes substantially when that’s the case.
- Dried-out wood shake on 1950s ranch tracts. Those original shake roofs with decades of sun exposure are fuel. They crack, lift, and trap embers in ways that compromise the entire fire-rated assembly. Patching them is rarely worth it, and we’ll say so plainly.
- Santa Ana wind damage at the ridge. Wind-driven damage in Altadena concentrates at the ridge cap and along rakes where uplift is strongest. Loose ridge shingles let water in sideways, and we see it most on homes along the northern edge of town near the trailheads.
- Long driveways and tight access on acreage lots. Properties with half-acre or larger lots, steep driveways, and narrow gates add real labor hours to what looks like a simple repair. Material has to be walked in or staged in phases, and we scope that before quoting.
Pricing for Roof Repair in Altadena, CA
Expect to pay $350 to $900 for a minor leak repair like a vent boot or a small flashing patch in Altadena. A valley rebuild runs $800 to $1,600. A full re-deck over original skip sheathing with new Class A underlayment and architectural shingles lands between $9,000 and $18,000 on most Altadena homes, depending on roof size and pitch. What moves the number: whether the existing decking can support new material, how many layers need to come off, and whether the county requires fire-rated upgrades on the whole assembly. We give written, line-item quotes before any work starts. Call (866) 361-0798 and we’ll inspect the roof and price the job so you know exactly what you’re paying for.
We Also Serve Cities Near Altadena
Our Roof Repair in Altadena crews also cover Pasadena, La Cañada Flintridge, East Pasadena, and San Marino. If you’re across the county line or just down the hill, the same team handles the job. One call covers the San Gabriel foothills corridor.
Serving Altadena, CA — Our Local Coverage Area
We’re based in the Altadena 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 Repair in Altadena
Altadena is unincorporated Los Angeles County, so all roofing permits go through the county, not a city building department. Simple repairs like replacing a vent boot or patching a small section of shingles usually do not require a permit. But if the repair involves re-decking, changing the roof material, or touching more than a defined percentage of the roof area, the county will require a permit and an inspection. We pull permits for you and handle the county paperwork. Call (866) 361-0798 to discuss what your specific roof repair needs.
You can patch a leak on skip sheathing temporarily, but a permanent repair that meets current WUI code requires solid decking first. The original 1x boards spaced up to 10 inches apart cannot support modern underlayment or fire-rated shingles. We’ll show you what’s under the shingles, explain what the county will require, and give you a number for the repair and a number for the full re-deck so you can decide with real information. Call (866) 361-0798 for a free inspection and quote.
Septic and well setbacks mostly affect where we can stage materials and park equipment, not the roof repair itself. On acreage lots, the leach field and well head sit somewhere in the yard, and we plan material drops and dumpster placement around them so nothing gets driven over. It adds a little labor time on bigger jobs and we account for it in the quote. Call (866) 361-0798 and we’ll scope your property before we price the work.
We install Class A fire-rated shingles from CertainTeed, Owens Corning, and IKO, along with ember-resistant vents and non-combustible underlayments that meet the county’s FHSZ requirements. The specific material depends on your roof’s pitch, existing structure, and what the insurance carrier will accept. From the ridge cap down, we spec the assembly as a system, not just a shingle swap. Call (866) 361-0798 for a material recommendation specific to your home.
We repair detached ADUs, garages, and shop roofs the same way we handle the main house – same materials, same code requirements, same crew. The difference is access: detached structures on Altadena lots often sit behind gates or alongside driveways that make material staging tighter. We scope that upfront so the quote reflects the real labor. Call (866) 361-0798 to schedule a free estimate on any structure on your property.
Call (866) 361-0798 today to schedule your free roof inspection and estimate in Altadena. We’ll walk the roof, show you what we find, and give you a written price before you commit to anything. Repair when it makes sense. Replace when it doesn’t. That’s how we work.
Written by Noel Cardenas, Owner at Ridge Cap Roof Repair, serving Altadena and the San Gabriel foothills.