Architectural shingles
Metal roofing
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 Repair Across Altadena
Roof repair in Altadena usually costs between $450 and $2,800 depending on what failed and how far it went before you caught it. A simple shingle replacement near the Mariposa corridor runs on the low end. A flat roof section on a hillside addition with rotted decking runs the high end. We work throughout Altadena, from the tree-lined streets off Lake Avenue up to the acreage properties along Chaney Trail, and we know what these roofs deal with: heavy oak debris, Santa Ana-driven ember exposure, and skylights that were flashed wrong when the house was added onto sometime in the 1980s. Alan Cofield leads our crew, and he’ll tell you straight whether you need a patch, a full section rebuild, or just a better drain. Call (833) 589-7850 for a free estimate. We’re not going to upsell you a replacement if your roof needs one square of shingles and a re-nailed flashing corner.
Why Bedrock Roof Repair Is Altadena’s Preferred Roof Repair Company
Altadena homeowners deal with a roofing problem that most LA basin cities don’t: you’re under a Very High Fire Hazard Severity Zone designation while also sitting under one of the densest tree canopies in the county. That combination means repairs have to address both water intrusion and ember resistance at the same time. A flat roof patch that keeps out rain but leaves combustible debris piled in the scupper isn’t a repair; it’s a deferred fire hazard. We scope every Altadena job with that dual lens. Our name says the model: we repair first. We evaluate replacement only when the decking, structure, or remaining service life makes repair a poor use of your money. No handoffs, no supplier quotas.
We also understand Altadena’s permitting reality. Most roof repairs on homes here fall under county jurisdiction rather than a city building department, which changes how long permits take and what triggers a required re-inspection. On acreage lots, there may be well or septic setback considerations that affect where dumpsters and material laydown can sit. We’ve done enough Altadena roofs to know which repairs are permit-exempt and which ones you can’t skip. That knowledge keeps your timeline honest from the first estimate, not the third week of waiting.
Our Roof Repair team works directly with homeowners across Altadena. We’ve repaired roofs in 91001 near Farnsworth Park and 91003 off Lincoln Avenue. The homes are different, the access is different, and the rooflines are different. That’s the job. It’s why we show up with a ladder, a moisture meter, and a camera before we ever hand you a number.
Styles & brands we work with






Flat Roof Repair in Altadena
Flat Roof Repair in Altadena is usually about ponding water. The low-slope sections over additions, garages, and patio rooms collect standing water after winter rain, and when oak leaves and deodar needles pile into the scuppers or drains, that water sits for days. Eventually it finds a seam, a split, or an old patch that failed. In 91001 and 91003, a typical flat roof patch runs $600 to $1,700 depending on whether we’re re-seaming a section of modified bitumen, replacing a deteriorated drain, or repairing a cracked parapet wall cap. If the membrane is original to a 1970s or 1980s addition and has already been patched twice, we’ll show you what we’re seeing and give you the honest comparison: one more patch or a re-cover that lasts 15 or more years.
Scupper and Drain Clearing
Most flat roof leaks on Altadena garages start with a clogged scupper, not a failed membrane. When water can’t leave the roof, it finds every weak point. We clear debris, check the drain sealing, and confirm the slope still drains before we touch the membrane. On a home under heavy deodar cover, this might be an annual maintenance item, not a one-time fix.
Membrane Seam Repair
Older torch-down and modified bitumen roofs split at the seams and flashings first. The sun at this elevation degrades the surface over years, and Santa Ana winds work the edges loose. We cut back the failed section, clean and prime the substrate, and re-seam with material matched to the existing system, whether that’s GAF’s TPO line, a bituminous product, or another compatible membrane. The point is a repair that doesn’t telegraph itself as a different color square from the street.
Shingle Roof Repair in Altadena
Shingle Roof Repair in Altadena usually comes down to wind, age, or the weight of everything falling on the roof every fall. The 1910s and 1920s Craftsman homes along streets like Mariposa and Mendocino have steep gable rooflines that hold shingles well, but the original skip sheathing underneath means a simple shingle replacement can turn into decking correction once we strip the section. A straightforward shingle replacement or valley repair in Altadena runs $450 to $1,400. When we have to replace rotted decking and re-set the substrate to code, that number climbs. We’ll tell you what the roof is showing us before we open anything up, and we’ll photograph what we find so you’re not taking our word for it.
Wind-Uplift Shingle Replacement
Shingles don’t just age out here; they get ripped. Santa Ana wind events hit the base of the San Gabriels differently than the flatlands in Pasadena. A 60 mph gust through the canyon will peel shingles that looked fine a week earlier. We replace the torn shingles, re-seal the surrounding course, and check whether the lost shingles are a warning sign about overall adhesion or a one-off wind victim.
Valley Repair and Re-Flashing
Complex rooflines with multiple valleys concentrate water flow, and when valley metal corrodes or the shingles bridging it get stripped, the leak follows the rafters down. Altadena homes with mid-century additions often have valleys where the addition roof meets the original house. Those intersections, if they were flashed poorly on the day of the addition, leak for years before anyone notices. We rebuild the valley with new metal, underlayment, and shingle coursing that moves water the way it’s supposed to move.
Trusted Brands We Service in Altadena
We’re not tied to one manufacturer. If your Altadena roof already has CertainTeed shingles, we’ll match CertainTeed. If it’s Owens Corning or IKO, same story. We source from seven major roofing brands, which means when we recommend a repair material, that recommendation is about your roof and your budget, not about moving product off our shelf. For Altadena homes in the Very High Fire Hazard Severity Zone, we often spec Owens Corning shingles with a Class A fire rating or CertainTeed’s landscape when the homeowner wants a specific color match on a partial repair. We’ll stock or order what your roof needs. The trade-off is rarely about brand quality these days; it’s about whether the material gets installed correctly and whether the flashing details are right.
See the difference
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After
Before
After
Before
AfterCommon Roof Repair Problems We See in Altadena Homes
- Debris-loaded valleys and flat sections: Oak and deodar trees are beautiful until they’re not. The leaf and needle load on Altadena roofs clogs valleys, gutters, and scuppers every year, trapping moisture against shingles and membranes. This is a maintenance reality, not a roof defect, but ignoring it creates the defect.
- Ember-vulnerable flashing and vents: Santa Ana winds drive embers into the smallest gaps around skylights, chimneys, and vent boots. If the flashing has worked loose over years of thermal movement, the ember path is already open. In a Very High Fire Hazard Severity Zone, these aren’t minor gaps. They’re how a distant fire becomes your fire.
- Original skip sheathing on pre-war homes: The 1910s through 1940s Craftsman and Spanish bungalows in Altadena were often built with skip sheathing: spaced boards rather than solid decking, designed for wood shakes. When a previous owner roofed over it with composition shingles, the nails didn’t always hit wood. Repairs on these roofs frequently require decking correction before new shingles can be laid properly.
- Non-standard decking hidden under layered tear-offs: Decades of additions and re-roofs leave surprises: rotted sections, mixed materials, and seams that don’t align. When we open a roof on Altadena Avenue or over by Farnsworth Park, we don’t always know what the decking looks like until the old layers come off. We scope the likely deck work into our estimate up front so the number doesn’t move on you mid-job.
Pricing for Roof Repair in Altadena, CA
Roof repair in Altadena runs from about $450 for a small shingle or flashing fix to $2,800 for a larger flat roof section rebuild with decking correction. Here’s what moves the number: access (a single-story ranch off Allen Avenue is faster to work on than a hillside home with a 40-foot drop and no scaffold anchor), decking condition (skip sheathing repairs cost more than solid plywood), and permitting (some Altadena repairs clear county review in days; others, especially on properties with well or septic setbacks, add 2 to 4 weeks and inspection fees). When we estimate, we give you a line-item breakdown. You see what materials cost, what labor costs, and what the permit costs. Call (833) 589-7850 to schedule a free estimate. We measure, we photograph, and we explain what the roof actually needs.
We Also Serve Cities Near Altadena
If you’re in Pasadena, La Cañada Flintridge, East Pasadena, or San Marino, we cover those too. Same repair-first approach, same material access. The permitting and terrain change once you cross out of Altadena, but the way we scope a roof doesn’t. One call covers the whole area: (833) 589-7850.
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 falls under county building jurisdiction rather than a city building department, which means permit review times run 2 to 4 weeks longer than nearby cities with their own municipal permitting offices. Most simple repairs on existing roofs are permit-exempt, but if you’re replacing decking, altering roof structure, or doing work that requires a re-roof inspection, the county timeline applies. We scope this into every Altadena estimate up front so your schedule isn’t imaginary. Call (833) 589-7850 and we’ll tell you which category your repair falls into before you commit.
On acreage lots with wells and septic systems, county setbacks affect where we can stage materials, park equipment, and place a dumpster for tear-off debris. You can’t set a 20-yard dumpster on top of a leach field or within the well’s protected radius. This sometimes means materials get staged farther from the house and carried in, which adds labor time to the estimate. We’ll walk the property with you before we quote so the access plan is real, not hypothetical. Call (833) 589-7850 for a free site evaluation.
Yes. Repairs in Altadena should include ember-resistant upgrades wherever we’re already working: replacing standard plastic vents with ember-rated metal vents, re-flashing skylights and chimneys so there are no gaps, and clearing valleys where wind-blown embers collect in dry debris. The January 2025 Eaton Fire made roof class and ember intrusion the first conversation for most Altadena homeowners. We’ll fold ember-resistant details into any repair we do without turning it into a full replacement pitch. Call (833) 589-7850 for a free estimate.
Skip sheathing means the roof boards are spaced apart rather than laid solid, a common detail on pre-war Altadena homes originally built for wood shakes. When we repair an area and find skip sheathing, we either re-nail into the boards where they exist or add solid decking under the repair section so the shingles have a proper nailing surface and the roof meets current code. That adds material and labor to the repair, typically $300 to $900 depending on the section size. We identify sheathing type during the initial inspection so the number you see is the number you pay. Call (833) 589-7850 to schedule an inspection.
For homes off Chaney Trail or up in the foothills with long, narrow driveways, we plan material delivery in stages so we’re not blocking access or trying to maneuver a full truckload up a 25% grade. We use smaller equipment and hand-carry where necessary. The labor cost runs higher for these properties, usually 15 to 20% more than a comparable repair on a flat street, because of the time spent moving materials. We’ll show you that line in the estimate. Call (833) 589-7850 for a free on-site assessment.
Written by Alan Cofield, Owner at Bedrock Roof Repair, serving Altadena and the surrounding foothill communities.