Step Flashing Repair Altadena CA that stops wall and chimney leaks
Licensed roof flashing specialists serving every Altadena neighborhood
Step Flashing Repair Altadena CA is the fastest way to stop the slow wall and chimney leaks that rot sheathing and stain ceilings. We handle step flashing fix work on shingle, tile, and metal roofs across Los Angeles County, from Christmas Tree Lane to Rubio Canyon. If water is showing up where the roof meets a wall, we find it and seal it.
Step Flashing Repair Altadena CA done right the first time
Step Flashing Repair Altadena CA is the trade of replacing or reseating the L-shaped metal pieces that shed water where a sloped roof meets a vertical wall. Each piece overlaps the one below it, tucked under the siding and woven into the shingle courses. When those pieces corrode, slip, or were installed without the proper overlap, water runs straight down the wall cavity. We pull the damaged metal, cut new pieces to fit, and reweave them so the roof drains the way it was designed to.
Altadena homes take a beating from sun, Santa Ana winds, and winter rain that arrives in concentrated bursts. A step flashing fix in Altadena often comes down to age: many roofs here are 15 to 25 years old, and the original galvanized steel has rusted through or the sealant has cracked. If you have been searching for step flashing repair near me in Altadena CA after spotting a ceiling stain near a dormer or chimney, that is usually the source.
Why Altadena homeowners call us for step flashing
Step flashing failures are quiet. They leak a little, then a lot. Fixing them early protects the structure behind your walls and saves thousands in drywall, framing, and mold work.
Stop leaks at the source
A step leak repair Altadena job done correctly closes the gap where the roof meets the wall, so water never enters the assembly. We test with a hose before we leave. Most leaks we chase back to step flashing are gone in a single visit, and we confirm it with a real water test, not a guess.
Protect framing and drywall
Water that slips past failed step flashing soaks the sheathing, top plates, and insulation. By the time you see a ceiling stain, the damage has usually been growing for months. Repairing the flashing early keeps a $400 fix from turning into a $4,000 framing and drywall repair.
Match your existing roof
We fabricate new step flashing from copper, aluminum, or galvanized steel to match what is already on your roof. On tile roofs we cut and fit pieces around the tile profile. On shingle roofs we reweave the flashing into the courses so the repair disappears into the roof line.
Extend the life of the roof
Flashing is the most common failure point on any roof, and step flashing is the most common flashing failure. Fixing it adds years to the roof you already have. We have kept Altadena roofs in service five to eight years longer than they would have lasted with a chronic leak.
How our step flashing repair process works
We keep it simple: find the leak, show you what failed, fix it, and prove it is fixed. Most step flashing repairs are done in a single day, and you get a written scope before we start.
Roof inspection
We walk the roof, check every step flashing run, and look at the wall, chimney, and dormer intersections. We take photos of anything that has failed and note the condition of the surrounding shingles or tile. This takes 30 to 45 minutes on a typical Altadena home.
Leak confirmation
We do not guess. We run water at the suspect area while a second person watches from inside, or we use a moisture meter on the sheathing. Confirming the leak source before we open anything up keeps the repair tight and the cost down.
Flashing removal
We lift the shingle courses or tile, pull the old step flashing with a pry bar, and inspect the sheathing underneath. Any rotted wood gets marked for replacement. We use a roofing hammer, utility knife, and tin snips to work cleanly and avoid collateral damage.
New flashing installation
We cut new step flashing on a flashing brake, set each piece with butyl tape or roofing cement, and reweave the courses so every piece overlaps the one below. On chimneys we coordinate with counter flashing. On walls we tie into the siding and housewrap correctly.
Water test and cleanup
We run water over the repair for 10 to 15 minutes and check inside. If it is dry, we clean the gutters of debris, magnet-sweep the yard for nails, and walk you through what we did. You get photos of the finished work and a written warranty on the repair.
Why Altadena picks us for step flashing fix work
We are a local roofing company, not a franchise. The person who inspects your roof is the person who fixes it. That keeps the diagnosis honest and the repair tight.
Licensed and insured
We hold a California Contractor License (C-39 Roofing) and carry full liability and workers comp coverage. Every technician on your roof is OSHA safety certified. You can verify our license through the California State License Board before we start, and we encourage it.
Same-week scheduling
Most step flashing repairs get scheduled within three to five business days. If you have active water intrusion, we offer emergency step flashing fix Altadena service and can often be on site the same day. We answer the phone, not a call center.
Upfront pricing
You get a written price before we touch the roof. No surprise add-ons, no day-of upsells. If we open the flashing and find something unexpected, we stop, show you the photos, and quote the additional work before we continue. That is how a step flashing fix near me should work.
Workmanship warranty
Every step flashing repair we do is backed by a written workmanship warranty. If the repair leaks within the warranty window, we come back and make it right at no charge. We have been in business since 2020 and we plan to be here when you need us again.
What our step flashing repair service includes
Every step flashing repair includes the full scope below. If we find rot, damaged shingles, or a failed counter flashing during the repair, we quote that separately before doing the work so there are no surprises on the invoice.
What's Included
Full roof and wall inspection
We inspect the entire step flashing run, not just the spot where you see the leak. Water travels sideways under shingles, so the entry point is often three or four feet from the stain. We check the chimney, dormers, skylights, and wall intersections in the same visit.
Old flashing removal
We lift the shingle or tile courses, pull the old step flashing, and inspect the sheathing and framing underneath. Any corroded, cracked, or improperly installed flashing gets removed completely. We do not patch over failed metal.
New flashing fabrication and install
We cut new step flashing from copper, aluminum, or galvanized steel to match your existing roof. Each piece is set with butyl tape or roofing cement and overlapped correctly with the course below. On tile roofs we cut pieces to fit the tile profile.
Sealing and waterproofing
We seal the flashing with polyurethane sealant rated for exterior roofing use. We do not rely on sealant alone to stop water; the metal does the work and the sealant backs it up. This is the difference between a repair that lasts and one that fails in a year.
Water test and photo documentation
We run water over the repair for 10 to 15 minutes and check inside for moisture. You get photos of the finished flashing and the surrounding roof so you can see exactly what was done. If anything is still wet, we keep working until it is dry.
Step flashing problems we fix in Altadena
Most step flashing failures look the same on the roof but start for different reasons. Here are the problems we see most often on Altadena homes and how we solve them.
Corroded galvanized step flashing on older Altadena roofs
Rusted metal develops pinholes and open seams that let water into the wall cavity. By the time you see a ceiling stain, the sheathing and top plate are often already wet and starting to rot.
We remove the corroded flashing, inspect the sheathing, and install new copper or aluminum step flashing cut to fit each course. Copper lasts 50-plus years and is the standard replacement for older Altadena homes where the original galvanized steel has reached the end of its life.
Improper step flashing installation by a previous roofer
When step flashing is nailed through the face instead of the top edge, or when pieces are not overlapped correctly, water runs behind the metal instead of over it. The roof leaks from day one and no amount of sealant fixes it.
We pull the incorrectly installed flashing, reweave it properly with each piece overlapping the one below, and fasten only at the top edge where the shingle covers the nail. This is the single most common cause of step flashing leaks we see in Altadena.
Cracked flashing sealant at wall and chimney intersections
Sealant cracks from UV exposure and thermal cycling within three to five years. Once it cracks, water gets behind the flashing and into the wall. Homeowners often re-caulk every year without realizing the metal underneath has failed.
We remove the old sealant, check the metal underneath, and replace any flashing that has failed. New flashing gets set with butyl tape and sealed with polyurethane sealant rated for exterior use. We do not just re-caulk and walk away.
Missing kickout flashing at roof-to-wall transitions
Without a kickout, water runs down the wall and soaks the siding, foundation, and stucco. It is one of the most common causes of mysterious wall stains and rot on Altadena homes with sidewall transitions.
We fabricate and install a proper kickout flashing at the bottom of the step flashing run so water is diverted away from the wall and into the gutter. This is a small piece of metal that prevents thousands of dollars in wall and foundation damage.
When Altadena homeowners need step flashing repair
A homeowner in West Altadena notices a brown ceiling stain near the chimney after the first big winter rain.
We inspect the chimney step flashing and counter flashing, confirm the leak with a water test, and replace the failed step flashing pieces. If the counter flashing has also failed, we quote that separately and fix both in the same visit.
The ceiling stain stops growing, the chimney flashing is watertight, and the homeowner has photos of the repair and a written warranty.
A 1940s Craftsman in Janes Village has original galvanized step flashing that has rusted through at the dormer.
We remove the rusted flashing, inspect the sheathing for rot, replace any damaged wood, and install new copper step flashing cut to match the dormer profile. We reweave the shingle courses so the repair blends into the roof.
The dormer is watertight, the copper flashing will outlast the roof, and the homeowner avoids a full roof replacement for another five to eight years.
A homeowner in Altadena Town Center has a tile roof with step flashing that was installed without proper overlap.
We lift the tile courses, pull the incorrectly installed flashing, and reinstall new step flashing with the correct overlap and fastening pattern. We cut each piece to fit the tile profile and set it with butyl tape.
The tile roof drains correctly, the wall stays dry, and the homeowner stops the annual re-caulking cycle they had been stuck in for three years.
A property manager in Los Angeles County needs step flashing repair on a rental home before the rainy season.
We inspect the roof, identify every failed step flashing run, and complete the repairs in a single day. We provide photo documentation and a written warranty that the property manager can pass to the owner.
The rental is watertight before winter, the tenant stops calling about leaks, and the owner has documentation of the repair for their records.
Tools and methods we use for step flashing repair
Tools & Equipment
Flashing brake
We use a flashing brake to bend custom step flashing pieces on site. This lets us match the exact dimensions of your wall-roof intersection instead of forcing a pre-bent piece to fit. Custom pieces seal better and last longer.
Tin snips and hand seamer
Tin snips cut copper, aluminum, and galvanized steel to size. A hand seamer folds the edges for a clean finish. We use both on every step flashing job to get tight, precise bends that sit flat against the wall.
Pry bar and roofing hammer
A pry bar lifts shingle courses and tile without damaging the surrounding roof. A roofing hammer sets nails at the correct depth. We use these to open up the flashing area cleanly and close it back up so the repair disappears.
Caulking gun with polyurethane sealant
We apply polyurethane sealant rated for exterior roofing use at the flashing edges and fasteners. This is a backup to the metal, not a replacement for it. Sealant alone will not stop a step flashing leak.
Butyl tape
Butyl tape goes under each step flashing piece to create a gasket between the metal and the shingle or underlayment. It stays flexible for decades and seals around nail penetrations. We use it on every step flashing repair.
Moisture meter
A moisture meter confirms whether the sheathing is wet before and after the repair. We use it to verify the leak source and to prove the repair is dry before we close up the roof.
Methods & Techniques
Layered step flashing installation
Each step flashing piece overlaps the one below it by at least 2 inches, and each shingle course overlaps the top of the flashing. This is the standard NRCA method and the only way step flashing works. We follow it on every job, whether the roof is shingle, tile, or metal.
Butyl tape bedding
We set each step flashing piece in a bed of butyl tape before fastening. The tape creates a watertight gasket that stays flexible through thermal cycling. This is a small step that makes a big difference in how long the repair lasts.
Water testing
After the repair, we run water over the flashing for 10 to 15 minutes while checking inside with a moisture meter. If the sheathing is dry, the repair is done. If it is wet, we keep working. No guesswork, no callbacks.
Photo documentation
We photograph every step of the repair, from the failed flashing to the finished installation. You get the photos by email so you can see exactly what was done. This is also useful if you ever sell the home or file an insurance claim.
How step flashing repair works in Altadena
Altadena sits at the base of the San Gabriel Mountains in Los Angeles County, and the local climate is hard on roof flashing. Summer UV exposure bakes sealant and expands metal, and winter rain arrives in concentrated storms that find every weak point. Many Altadena homes were built between the 1920s and 1950s, and the original galvanized step flashing on those roofs has rusted through or been patched repeatedly. We see a lot of failed flashing at chimney and dormer intersections on Craftsman and Spanish-style homes in neighborhoods like Janes Village, Historic Highlands, and Christmas Tree Lane. When you call us for step flashing leak repair in Altadena, California, we bring the right materials for the roof type and the right flashing profile for the era of the home. We serve ZIP codes 91001, 91003, and 91104, and we know the local building stock well enough to diagnose most step flashing leaks on the first visit.
Service Areas
Older homes with original galvanized step flashing that has reached the end of its life. We replace it with copper or aluminum cut to match the original profile.
1920s Craftsmans with dormers and wall intersections that need careful flashing reweaving. We handle these regularly and know the common failure points.
Mix of tile and shingle roofs where step flashing often fails at the chimney and skylight. We carry materials for both roof types on every truck.
Homes near the canyon get more wind-driven rain, which pushes water into step flashing seams that would stay dry on a calmer street. We seal these extra carefully.
Historic homes with complex roof lines and multiple wall intersections. Step flashing repairs here need to match the original detailing and materials.
Local Considerations
Summer UV exposure and thermal cycling
Altadena gets strong sun that expands and contracts metal flashing daily. Over 10 to 15 years this cracks sealant and loosens fasteners. We use butyl tape and mechanically fastened flashing that handles thermal movement.
Concentrated winter rainstorms
When rain arrives in bursts, step flashing that would stay dry in a light drizzle gets overwhelmed. Failed flashing that has been leaking slowly all year suddenly shows up as a ceiling stain. We see most step flashing calls between November and March.
Santa Ana winds
High winds drive rain sideways into wall-roof intersections. Step flashing that is not properly overlapped lets water in during these events. We check overlap and fastening on every repair.
Aging housing stock
Many Altadena homes are 60 to 100 years old, and the original step flashing has been patched multiple times. At some point patching stops working and the flashing needs full replacement. We tell you honestly which one you need.
Chimney step flashing replacement in West Altadena
A homeowner in West Altadena had a ceiling stain near the chimney that grew every winter. A previous roofer had re-caulked the flashing three years in a row. The galvanized step flashing had rusted through in two places, and the sheathing underneath was wet and starting to soften.
We removed the rusted flashing, replaced the damaged sheathing, and installed new copper step flashing with proper overlap and butyl tape bedding. We also replaced the counter flashing. The water test ran dry, and the homeowner has not seen a stain since.
Maintenance & Follow-up
We recommend an annual roof inspection in the fall to check the flashing and clear debris from the chimney area. Copper flashing should last 50-plus years with basic maintenance.
A 1940s Craftsman in Janes Village had water staining on the interior wall below a dormer. The step flashing had been installed without proper overlap, and water was running behind the metal instead of over it. The shingles around the dormer were also lifting.
We pulled the incorrectly installed flashing, rewove new step flashing with each piece overlapping the one below, and reset the surrounding shingles. We replaced four shingles that had been damaged by the leak. The wall dried out within a week and the stain stopped spreading.
Maintenance & Follow-up
Keep the dormer clear of tree debris and check the flashing after any major windstorm. We offer a fall flashing inspection that catches these issues before the rain starts.
A homeowner in Altadena Town Center had a mysterious stain on the exterior stucco wall below a roof-to-wall transition. There was no kickout flashing at the bottom of the step flashing run, so water was running down the wall and soaking into the stucco and foundation.
We fabricated and installed a proper kickout flashing at the bottom of the run, replaced two step flashing pieces that had started to corrode, and sealed the transition with polyurethane sealant. The wall dried out, and the homeowner avoided a stucco repair that would have cost several thousand dollars.
Maintenance & Follow-up
Check the kickout after heavy rain to make sure it is diverting water into the gutter. We include kickout inspection in our annual flashing maintenance service.
Frequently Asked Questions
Have questions? We have answers. If you don't see your question here, feel free to contact us.
Call UsHow much does step flashing repair cost in Altadena CA?
Most step flashing repairs in Altadena run $350 to $1,200 in 2026. A single wall intersection is usually at the low end. A full chimney step flashing replacement with counter flashing is at the high end. The price depends on linear feet, roof material, flashing material, and whether the sheathing underneath needs replacement. We give you a written price before we start.
Why is my step flashing leaking in Altadena, California?
The most common causes are corroded galvanized steel on older roofs, improper installation where the flashing was nailed through the face instead of the top edge, and cracked sealant that has failed after years of UV exposure. Altadena's concentrated winter rain and strong summer sun accelerate all three. We inspect the flashing, confirm the leak source with a water test, and tell you exactly what failed.
Can you fix step flashing leaks in Altadena?
Yes. Step flashing leak repair in Altadena, California is one of our core services. We handle shingle, tile, and metal roofs, and we carry copper, aluminum, and galvanized steel on every truck. Most repairs are done in a single day, and we water-test the repair before we leave. If you have active water intrusion, we offer emergency step flashing fix Altadena service.
Do you offer step flashing fix near me in Altadena?
We serve all of Altadena and the surrounding Los Angeles County area, including ZIP codes 91001, 91003, and 91104. If you have been searching for step flashing repair near me Altadena CA, call us and we will schedule a free roof inspection. Most repairs are scheduled within three to five business days, and emergency service is available for active leaks.
Licensed, certified, and reviewed
Certifications
Customer Reviews
We had a ceiling stain near our chimney for two winters and two other roofers just re-caulked it. Hometown Roof Protectors found the actual problem, replaced the step flashing, and showed us photos of the rusted metal they pulled out. No leak this year. Fair price and they cleaned up everything.
Called about a leak at our dormer in Janes Village. They came out the next day, confirmed the step flashing was installed wrong by a previous roofer, and fixed it properly. Water test ran dry. They also replaced four damaged shingles and did not charge extra for it. Honest company.
We manage several rentals in Altadena and use Hometown Roof Protectors for all our flashing work. They are reliable, they document everything with photos, and their pricing is straightforward. They repaired step flashing on two properties for us this year and both have stayed dry through the rain.
Had a mystery stain on our stucco wall for months. They found the missing kickout flashing in about ten minutes and had it fixed the same visit. Explained everything clearly and did not try to sell us a new roof. Highly recommend for step flashing repair in Altadena.
Related Services
Explore our other professional services
Roof Flashing Repair
Step flashing is one part of your roof's flashing system. If other flashing areas are also failing, we handle the full repair in one visit. We inspect every flashing run on the roof and quote the whole scope upfront.
Roof Flashing RepairRoof Leak Repair
Step flashing leaks often show up as ceiling stains far from the actual entry point. We trace the leak back to the source, whether it is step flashing or another failure, and fix it correctly the first time.
Roof Leak RepairChimney Flashing Repair
Chimney step flashing and counter flashing work together. When one fails, the other is usually close behind. We replace both at the same time so you do not pay for a second visit six months later.
Chimney Flashing RepairSkylight Flashing Repair
Skylights use step flashing and head flashing at the curb. If your skylight is leaking, the step flashing is often the culprit. We repair both the flashing and the skylight seal in one visit.
Skylight Flashing RepairVent Pipe Flashing Repair
Vent pipe boots fail from UV exposure just like step flashing. If you are already having flashing work done, we check the vent boots and replace any that are cracked or pulling away from the pipe.
Vent Pipe Flashing RepairValley Flashing Repair
Valleys carry the most water on any roof. If your valley flashing is failing at the same time as your step flashing, we repair both in one visit and water-test the whole area before we leave.
Valley Flashing RepairCounter Flashing Repair
Counter flashing caps the top of step flashing at the wall or chimney. When counter flashing fails, water gets behind the step flashing. We repair or replace both together for a watertight result.
Counter Flashing RepairDrip Edge Flashing Repair
Drip edge protects the roof edge and directs water into the gutter. If your drip edge is damaged, water can back up under the shingles and reach the step flashing. We repair both in the same visit.
Drip Edge Flashing RepairKickout Flashing Repair
Kickout flashing diverts water away from the wall at the bottom of a step flashing run. Missing kickout flashing is one of the most common causes of wall and foundation damage on Altadena homes.
Kickout Flashing RepairWall Flashing Repair
Wall flashing and step flashing meet at the roof-to-wall transition. If the wall flashing has failed, the step flashing repair will not hold. We inspect both and repair what is actually failing.
Wall Flashing RepairRoof Flashing Replacement
When step flashing is too far gone to repair, replacement is the better option. We remove the old flashing, inspect the sheathing, and install new flashing cut to fit your roof. Most replacements are done in a single day.
Roof Flashing ReplacementEmergency Roof Flashing Repair
Active leaks do not wait for a scheduled appointment. We offer emergency step flashing fix Altadena service for active water intrusion. Call us and we will get someone on site as fast as possible.
Emergency Roof Flashing RepairRoof Flashing Inspection
A flashing inspection catches step flashing problems before they leak. We check every flashing run on the roof, take photos, and give you a written report. This is the best way to avoid a surprise ceiling stain in January.
Roof Flashing InspectionRoof Flashing Maintenance
Annual flashing maintenance keeps step flashing, counter flashing, and vent boots in good shape. We clear debris, check sealant, and reseal anything that is starting to fail. It is the cheapest way to protect your roof.
Roof Flashing MaintenanceRoof Flashing Sealing
Sealing is a short-term fix for step flashing that is still in good condition but has cracked sealant at the edges. We reseal the flashing and tell you honestly whether it will hold or whether replacement is the better call.
Roof Flashing SealingMetal Roof Flashing Repair
Metal roofs use step flashing at wall and chimney intersections just like shingle roofs. We repair metal roof step flashing with materials that match the roof panel and do not cause galvanic corrosion.
Metal Roof Flashing RepairShingle Roof Flashing Repair
Shingle roofs are the most common roof type in Altadena. We lift the courses, replace the step flashing, and reweave the shingles so the repair blends into the roof line. Most shingle step flashing repairs take one day.
Shingle Roof Flashing RepairTile Roof Flashing Repair
Tile roofs take longer to repair because each tile has to be removed and reset. We cut step flashing to fit the tile profile and set it with butyl tape. We carry the materials to match common Altadena tile profiles.
Tile Roof Flashing RepairFlat Roof Flashing Repair
Flat roofs use step flashing at wall transitions and parapet walls. We repair flat roof step flashing with modified bitumen or EPDM-compatible materials and seal the edges with polyurethane sealant.
Flat Roof Flashing RepairCommercial Roof Flashing Repair
Commercial buildings have step flashing at every wall and HVAC curb. We repair commercial step flashing with minimal disruption to your business and provide photo documentation for your records.
Commercial Roof Flashing RepairResidential Roof Flashing Repair
Step flashing repair is one of our most common residential services. We work on single-family homes, duplexes, and small multi-family buildings across Altadena and Los Angeles County.
Residential Roof Flashing RepairStorm Damage Flashing Repair
After a big storm, step flashing is often bent, lifted, or torn. We inspect the flashing, repair or replace what is damaged, and water-test the repair. We also document the damage if you plan to file an insurance claim.
Storm Damage Flashing RepairRoof Flashing Installation
If you are having a new roof installed, we make sure the step flashing is installed correctly the first time. Improper step flashing installation is the most common cause of roof leaks we see on newer roofs.
Roof Flashing InstallationCustom Flashing Fabrication
Some Altadena homes have roof profiles that do not fit standard flashing. We fabricate custom step flashing on site with a flashing brake to match your roof exactly. Custom pieces seal better and last longer.
Custom Flashing FabricationRoof Flashing Leak Detection
If you have a leak but cannot find the source, we use water testing and moisture meters to trace it. Step flashing is often the culprit even when the stain is far away. We find the leak before we quote the repair.
Roof Flashing Leak DetectionGutter Flashing Repair
Gutter flashing and step flashing meet at the roof edge. If your gutter flashing has failed, water can back up under the step flashing. We repair both together so the whole edge is watertight.
Gutter Flashing RepairRoof Flashing Waterproofing
Waterproofing extends the life of step flashing that is still in good condition. We clean the flashing, reseal the edges, and apply a waterproof coating where appropriate. This is a good option for flashing that is aging but not yet failed.
Roof Flashing WaterproofingRoof Flashing Repair Near Me
If you have been searching for roof flashing repair near me in Altadena, we are local and we answer the phone. We serve all of Altadena and the surrounding Los Angeles County area with same-week scheduling and emergency service for active leaks.
Roof Flashing Repair Near MeGet your Step Flashing Repair Altadena CA quote today
If you have a ceiling stain, a wet wall, or you just want your flashing checked before the next storm, call Hometown Roof Protectors. We are licensed, insured, and we have been repairing step flashing in Altadena since 2020. Free roof inspection, written price, no pressure.