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 usually runs between $450 and $1,800 for common fixes like shingle replacement, flashing repair, and valley work. Larger jobs involving structural decking or fire-code upgrades land in the $2,500 to $6,000 range. We work across both Altadena ZIP codes, 91001 and 91003, from the flats near Lake Avenue up into the foothills off Chaney Trail and Loma Alta Drive. If you’ve spotted a leak, a lifted shingle, or granule loss after a Santa Ana wind event, call (877) 755-4274. We’ll come out, diagnose what’s actually going on, and give you a straight answer on what the roof needs – and what it doesn’t.
Why Weathervane Roof Repair Is Altadena’s Preferred Roof Repair Company
Weathervane is a roofing-only shop. We don’t do kitchens, we don’t pour concrete, and we don’t treat your roof as a side ticket. That focus matters in Altadena, where homes built in the 1910s and 1920s demand a repair crew that understands original framing, historic tile profiles, and the fire-zone codes that now govern what can go back on a roof. Gil Tanner leads our team, and he’s built the company around one habit: inspection first, recommendations second. We’re not here to sell you a $20,000 replacement when a $700 valley repair solves the leak.
Altadena homeowners call us because we show up with a method, not a pitch. We’ve repaired roofs on Craftsman bungalows near Farnsworth Park, Spanish Colonials up Rubio Canyon, and mid-century homes off Mendocino Lane. The common thread is older sheathing, complex rooflines, and uv-degraded materials that need honest eyes. Our Roof Repair team works from a written diagnosis. If the fix is small, we say so. If the decking beneath a leak is rotten, we document it, price it, and get your approval before any additional work happens. That’s how a repair should go – no surprises, no change orders slipped into the final invoice.
Styles & brands we work with






Metal Roof Repair in Altadena
Metal roof repair in Altadena typically costs $550 to $1,900, depending on whether we’re replacing a few panels, resealing a seam, or addressing fastener backout across a larger section. Metal roofs hold up well under Altadena’s intense sun, but the expansion and contraction cycles at the base of the San Gabriels stress seams and fasteners over time. A roof that looked fine in March can start weeping at a seam by the first winter rainstorm.
Seam and Fastener Work
Standing-seam and corrugated metal roofs in Altadena often fail at the laps first. We replace worn gaskets, re-torque fasteners, and reseal seams with the right sealant for this climate – one that won’t turn brittle after three summers of UV. Loose fasteners on a metal roof are more than noisy; they let water migrate under the panels and into the decking.
Panel Replacement and Coating Repairs
Hail is rare here, but falling branches from the oaks and sycamores along Altadena’s tree-lined streets do real damage. We match existing panel profiles and gauge as closely as possible, then blend the repair so it doesn’t look like a patch job. For older metal roofs nearing the end of their coating life, we can repair the substrate and recoat, which is often a fraction of a full replacement cost.
Commercial Roof Repair in Altadena
Commercial roof repair in Altadena runs $950 to $4,200 on average, with most flat and low-slope repairs falling in the $1,200 to $2,800 range. The commercial buildings along North Lake Avenue, the shops on Mariposa Street, and the office spaces near the Altadena Town Center carry decades of heat, wind, and deferred maintenance. A leaking commercial roof in Altadena doesn’t just damage inventory; it creates liability, and the wildfire-zone codes apply here too.
Low-Slope and Flat Roof Patches
Flat roof patch work in Altadena often starts with a proper water test, not a guess. We identify the actual entry point, cut out the failed membrane section, inspect the insulation below, and install a patch that matches the existing system – TPO, modified bitumen, or built-up. Guessing on a flat roof burns money fast. We don’t guess.
Flashing, Curbs, and Penetrations
Most commercial leaks in Altadena start at penetrations: HVAC curbs, exhaust vents, plumbing stacks. We repair failed flashing, reseal curbs, and replace cracked pitch pans. On buildings with older tar-and-gravel roofs, we can often extend the life by several years with targeted repairs instead of a full tear-off. We’ll tell you when a repair stops making sense and replacement becomes the honest answer.
Trusted Brands We Service in Altadena
We work with materials from seven major manufacturers, including CertainTeed, Owens Corning, and IKO. That’s not a marketing line – it means when we repair an Altadena roof, we match the existing shingle profile and color from the same manufacturer rather than slapping on whatever’s on the truck. Older roofs in 91001 and 91003 often have discontinued colors, so we keep relationships with local suppliers in the Foothill corridor to source close matches quickly. Brand-agnostic means exactly that: we recommend what fits your roof’s existing system, your budget, and your home’s fire-zone requirements. No vendor allegiance, no quota to hit.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Altadena Homes
- Wood-shake failure on 1900s Craftsman homes. Original wood shakes dry out and split under decades of UV, then Santa Ana winds tear them loose. Code now requires fire-resistant replacement when reroofing, so we plan repairs around that trigger from the beginning.
- Cracked and slipped clay tile on Spanish Colonial Revival roofs. Hairline cracks are nearly invisible until winter rains turn them into slow leaks. We match historic profiles and colors when possible, and we always check the sheathing beneath before resetting tiles.
- Debris trapping and hidden rot in complex hip-and-gable valleys. Altadena’s older homes often have three or four valleys running into one point. Leaves, acorns, and sycamore bark pile up, hold moisture, and rot the decking underneath. By the time you see a ceiling stain, the damage is usually bigger than it looks.
- Flash failure at chimneys and sidewalls, especially with Santa Ana wind loads. Flashing that flexes with every wind event eventually separates at the seam. The result is a slow, persistent leak that’s hard to trace. We open these areas up, fix the flashing, and check what the leak did to the decking while it worked.
Pricing for Roof Repair in Altadena, CA
Shingle replacement in Altadena generally runs $450 to $950 for a small repair of ten to twenty shingles. Flashing repair lands between $400 and $1,100 depending on the penetration. Valley repairs run $800 to $1,800 when decking replacement is needed. Vent boot replacement is the smallest common job at $250 to $500. If we find rotted decking, outdated wiring, or fire-code triggers when we open up a repair, those are priced as allowances in the contract and approved in writing before we do the work. Call (877) 755-4274 for a free estimate with a written, line-item scope. You’ll know the exact number before any saw touches your roof.
We Also Serve Cities Near Altadena
Weathervane handles roof repairs throughout the Foothill corridor, including Altadena, Pasadena, La Cañada Flintridge, East Pasadena, and San Marino. The housing stock and climate are similar across these cities, but the fire-zone codes and historic home details change from block to block. If you’re just outside the Altadena ZIP codes, we can still help.
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
Minor repairs like shingle replacement, flashing work, and vent boot swaps typically don’t require a permit in Altadena. But if we need to replace decking or more than a small section of the roof surface, a permit is likely required, and that permit can trigger the current fire-zone code. The biggest trigger is wood-shake: if your roof still has original wood shakes and we’re opening up more than a repair patch, the county will typically require replacement with a Class A fire-rated assembly. We’ll tell you before we start whether your repair stays a repair or crosses into code-upgrade territory, and we’ll price it both ways so there’s no surprise. Call (877) 755-4274 and we’ll assess your specific roof.
We stop, photograph everything, write up a scope with exact pricing, and get your written approval before we touch it. On a 1918 Craftsman bungalow in the Altadena foothills, we opened up a valley repair and found original 1x sheathing that had been patched with plywood and no ice and water shield, plus outdated wiring running through the attic. We replaced the decking, added ice and water shield, installed new flashing and drip edge, and rewired the exposed section – all priced and approved in writing before we did the work. That’s the only way we operate. Hidden damage is common in Altadena’s older homes, but surprise invoices don’t have to be.
Yes, and we do it often in Altadena. Original clay tile from the 1920s and 1930s can often be sourced from architectural salvage suppliers in Southern California, or matched with new tile that replicates the original profile and color. The bigger issue is what’s underneath. On many Spanish Colonial homes in 91001, the sheathing beneath the tile has never been replaced, and the tile is the only thing holding off the weather. We repair the tile, but we also check the decking, underlayment, and flashing so your historic look doesn’t come with a hidden leak. Call (877) 755-4274 for an assessment of your specific roof.
Class A fire-rated assemblies are the standard in Altadena’s urban-wildland interface, and they include asphalt composition shingles from CertainTeed, Owens Corning, and IKO, plus metal roofing and fire-treated wood shakes. Tile is also Class A when installed with the right underlayment. The code doesn’t force you into one material; it requires the assembly to meet Class A standards. We’ll evaluate your existing roof structure, your budget, and your home’s architectural character, then recommend the option that fits all three. For older Altadena homes, that often means composition shingles that match the original style without sacrificing fire performance.
UV degradation in Altadena is faster than most homeowners realize. A composition shingle roof that would last 25 years in a coastal climate might last 18 to 20 years at the base of the San Gabriels, because the sun breaks down the asphalt and granules faster. Santa Ana winds then strip the weakened shingles. That means our repair decisions account for the whole roof’s age. If granule loss is advanced and repairs would become a recurring cost, we tell you that. If the roof has five or more years of life left, we tell you that too. The honest answer sometimes is repair, sometimes replacement – and we let the roof’s condition make the call. Call (877) 755-4274 for a free, no-pressure assessment.
Written by Gil Tanner, Owner at Weathervane Roof Repair, serving Altadena and the surrounding Foothill communities.