Skylight Flashing Repair Altadena CA That Stops Leaks Cold
Licensed flashing crews sealing skylights across Los Angeles County
Skylight Flashing Repair Altadena CA work starts with finding exactly where water is getting past your skylight curb, then sealing it for good. We handle cracked sealant, loose counter flashing, and corroded metal on homes from Christmas Tree Lane to Loma Alta. If a storm just pushed water through your ceiling, call us and we will get a crew out fast.
Skylight Flashing Repair Altadena CA Done Right
Skylight Flashing Repair Altadena CA is the trade of rebuilding the metal and membrane layers around a skylight curb so rain cannot slip under the frame. Every skylight sits on a raised curb wrapped in step flashing, counter flashing, and sealant. When any layer fails, water tracks along the roof deck and shows up as a ceiling stain feet away from the glass. We pull the old flashing, inspect the curb for rot, and rebuild the assembly with galvanized steel or copper and fresh butyl tape.
Altadena homes take a beating from sun and winter rain, and skylight flashing takes the worst of it. UV dries out polyurethane sealant within a few seasons, and the first big storm finds the gap. Homeowners searching for skylight leak repair Altadena usually notice a brown ring on the ceiling or drips near a recessed light. We see this most on 1950s ranches and mid-century builds where the original flashing has been patched two or three times instead of replaced.
Why Fix Skylight Flashing Early
A small flashing failure turns into a ceiling repair, insulation replacement, and mold problem within one rainy season. Fixing it early keeps the damage on the roof and out of your living room.
Stop Leaks Before Winter
A skylight flashing fix near me in Altadena before the first big storm saves you a ceiling repair that runs $800 to $2,500. We reseal and rebuild the flashing in one visit so the next rain stays outside where it belongs.
Protect Ceiling and Insulation
Water that slips past skylight flashing soaks insulation and drywall for weeks before you see a stain. By the time it shows, you are looking at mold remediation on top of the roof repair. Sealing the flashing now keeps that money in your pocket.
Extend Skylight Life
A Velux or Oatey skylight can last 20 years or more, but only if the flashing around it holds. Replacing corroded aluminum or failed sealant adds years to the unit and delays a full skylight replacement that costs several thousand dollars.
Pass Inspection and Resale
Los Angeles County inspectors and home buyers both look hard at skylight flashing. A documented repair with new galvanized steel, proper counter flashing, and fresh sealant clears the inspection and gives a buyer confidence the roof is sound.
How Our Skylight Flashing Repair Works
We keep the process simple: find the leak, show you what failed, fix it, and prove it holds. Most skylight flashing repairs finish in a single visit of two to four hours.
Roof Inspection
A technician walks the roof, checks the skylight curb, and looks for water intrusion at skylights, corroded flashing, and cracked sealant. We photograph everything and show you the actual failure point, not a guess. This step takes 30 to 45 minutes.
Written Findings
You get a clear explanation of what failed and what it takes to fix it, with a flat price before we start. No pressure, no surprise line items. If the flashing is fine and the leak is coming from somewhere else, we tell you that too.
Flashing Removal
We pull the old step flashing and counter flashing with a pry bar and roofing hammer, then inspect the curb and roof deck for rot. Any soft wood gets replaced before new flashing goes on. This is the step most quick-patch crews skip.
Rebuild and Seal
New flashing is cut on a flashing brake or with tin snips and hand seamer, set in butyl tape, and fastened with a roofing nailer. We seal the seams with polyurethane sealant and roll them flat with a seam roller. Two to three hours for a standard residential skylight.
Water Test
Before we leave, we run water over the skylight and watch from inside. If a single drop gets through, we keep working. You get photos of the finished flashing and a workmanship warranty on the repair.
Skylight Flashing Experience You Can Check
Hometown Roof Protectors has been repairing roof flashing in Altadena since 2020. In six years we have rebuilt skylight flashing on hundreds of homes across Los Angeles County, from flat-roof additions to steep shingle roofs. Our technicians hold California Contractor License (C-39 Roofing) credentials, carry OSHA safety certification, and train on NRCA flashing standards. We work with GAF, Owens Corning, CertainTeed, Velux, and Oatey products daily, so we know which flashing system fits your skylight and your roof pitch.
- California Contractor License (C-39 Roofing) held by our lead installers on every skylight job.
- GAF Master Elite and Owens Corning Preferred Contractor training on flashing systems and sealants.
- NRCA member crews trained on step flashing, counter flashing, and kickout flashing standards.
- Hundreds of skylight flashing repairs completed across Altadena and Los Angeles County since 2020.
- OSHA safety certification on every crew, with full roof anchoring on steep Altadena pitches.
Why Altadena Homeowners Call Us for Skylight Flashing
We are a local crew, not a call center. When you book skylight flashing repair near me Altadena CA, you get the same technicians who show up, do the work, and stand behind it.
Same-Week Scheduling
Most skylight flashing repairs get scheduled within three to five business days, and active leaks jump to the front of the line. We give you a two-hour arrival window and call ahead when we are on the way.
Flat Pricing Upfront
You see the full price before we touch the roof. No hourly billing, no surprise add-ons after the flashing is off. If we find rot under the curb, we show you and quote the extra work before doing it.
Correct Materials for Your Roof
We stock galvanized steel, copper, aluminum, lead, EPDM, and TPO so the flashing matches your roof instead of whatever is on the truck. Tile roofs get lead or copper. Flat roofs get modified bitumen and butyl tape. Shingle roofs get GAF or CertainTeed step flashing.
Workmanship Warranty
Every skylight flashing fix for leaks in Altadena carries a written workmanship warranty. If water finds its way back in through our repair, we come back and make it right at no charge. That is the whole point of hiring a licensed crew.
What Skylight Flashing Repair Includes
Our standard skylight flashing repair covers the full flashing assembly around the curb, from removal to water test. If we find rot, damaged sheathing, or a failing skylight unit itself, we quote that separately before doing the work.
What's Included
Old Flashing Removal
We pull the existing step flashing, counter flashing, and sealant with a pry bar and utility knife. The curb gets cleaned down to bare wood so new materials bond properly. This step takes 45 to 60 minutes on a standard residential skylight.
Curb and Deck Inspection
With the flashing off, we check the curb framing and surrounding roof deck for rot, soft spots, and old water damage. Any compromised wood gets replaced before new flashing goes down, so the repair lasts more than one season.
New Flashing Installation
We cut and fit new step flashing and counter flashing in galvanized steel, copper, or lead to match your roof. Pieces are set in butyl tape and fastened with a roofing nailer, then sealed with polyurethane sealant and rolled flat.
Sealant and Waterproofing
Every seam, fastener head, and edge gets a bead of roofing cement or polyurethane sealant. On flat roofs we add modified bitumen or EPDM membrane over the flashing for a second layer of protection against standing water.
Water Test and Photos
We run water over the finished skylight for several minutes and check from inside for any drips. You get before-and-after photos of the flashing and a written workmanship warranty on the repair.
Skylight Flashing Problems We Solve in Altadena
Most skylight leaks trace back to one of a handful of flashing failures. Here is what we see on Altadena roofs and how we fix each one.
Cracked flashing sealant around the skylight
Sealant dries out and cracks after two or three summers of Altadena sun, letting water slip under the flashing during the first winter storm.
We remove the old sealant completely, clean the flashing, and reseal with polyurethane sealant rated for UV exposure. If the flashing itself is corroded, we replace it rather than seal over a failing layer.
Loose or missing counter flashing
Counter flashing that has pulled away from the curb leaves the step flashing exposed and lets wind-driven rain push straight under the metal.
We reset or replace the counter flashing, fasten it into the curb with proper nails, and seal the top edge. This is one of the most common skylight flashing repair calls we get after a windy storm.
Water intrusion at skylights after heavy rain
Water tracks along the roof deck and shows up as ceiling stains, dripping recessed lights, or wet insulation far from the skylight itself.
We trace the water back to the actual entry point, which is almost always the flashing rather than the glass. Then we rebuild the flashing assembly and water test it before leaving.
Corroded or rusted flashing metal
Galvanized steel and aluminum flashing corrode over time, especially near the coast or after years of standing water on flat roofs.
We replace corroded flashing with copper or heavier-gauge galvanized steel that will outlast the roof. Copper costs more upfront but lasts decades longer than the original aluminum.
When to Call for Skylight Flashing Repair
A homeowner on Christmas Tree Lane notices a brown water stain spreading across the ceiling below the skylight after the first big storm.
We inspect the skylight curb, find the failed flashing or sealant, and rebuild the assembly with new step flashing and counter flashing. Most repairs finish in a single visit of two to four hours.
The ceiling stain stops spreading, the leak is sealed, and the homeowner can repair the drywall knowing the roof is dry.
A 1950s ranch in West Altadena has a skylight that has been patched three times with roofing cement and still drips every winter.
We strip all the old patch material, inspect the curb for rot, replace any soft wood, and install a full new flashing assembly in galvanized steel with butyl tape and polyurethane sealant.
The homeowner stops paying for annual patches and gets a repair that holds through multiple rainy seasons.
A flat-roof addition in East Altadena has standing water around the skylight after every storm, and the flashing is starting to lift.
We rebuild the flashing with modified bitumen and EPDM membrane, seal the edges with roofing cement, and check the roof drainage to reduce standing water at the skylight.
Water drains away from the skylight instead of pooling on it, and the flashing stays sealed through the wet season.
A homeowner preparing to sell a home near Farnsworth Park needs the skylight flashing repaired and documented before the inspection.
We complete the flashing repair, water test it, and provide before-and-after photos plus a written workmanship warranty the buyer can review.
The inspection clears, the buyer sees documented work, and the sale moves forward without a flashing repair credit.
Tools and Methods We Use
Tools & Equipment
Flashing brake
Bends custom flashing pieces on site to match the exact dimensions of your skylight curb and roof pitch.
Tin snips and hand seamer
Cuts and folds copper, aluminum, and galvanized steel flashing for a tight fit around corners and edges.
Roofing hammer and pry bar
Removes old flashing and nails without damaging the surrounding shingles or roof deck.
Caulking gun
Applies polyurethane sealant and roofing cement in consistent beads along every seam and fastener.
Seam roller
Presses butyl tape and membrane seams flat so they bond fully and resist water intrusion.
Roofing nailer
Fastens step flashing and counter flashing quickly and evenly, reducing the chance of over-driven nails.
Measuring tape and utility knife
Measures and trims flashing, butyl tape, and membrane to exact size before installation.
Methods & Techniques
NRCA step flashing standards
We install step flashing in overlapping layers that shed water the way the NRCA recommends, so each piece directs water onto the one below it instead of relying on sealant alone.
Butyl tape bedding
Every flashing piece is bedded in butyl tape before fastening. The tape creates a flexible waterproof layer under the metal that stays sealed even as the roof expands and contracts with temperature swings.
Polyurethane sealant finishing
We finish seams and fastener heads with polyurethane sealant rather than cheap roof cement. Polyurethane stays flexible longer under UV exposure, which matters in Altadena's sunny climate.
Two-stage water testing
After the flashing is installed, we run water over the skylight and watch from inside for several minutes. If anything gets through, we keep working until it is dry.
How Skylight Flashing Repair Runs in Altadena
Altadena sits at the base of the San Gabriel Mountains in Los Angeles County, and that location drives how skylight flashing fails here. Summer UV is intense enough to crack polyurethane sealant in two or three seasons. Winter storms push wind-driven rain against curbs from the south and west, which is why loose counter flashing causes so many leaks. The housing stock matters too: 1920s bungalows near Janes Village and 1950s ranches in West Altadena often have original skylights with flashing that has been patched for decades. Newer homes near La Viña and The Meadows usually need sealant refresh rather than full replacement. If you are searching for skylight flashing repair near me in Altadena CA, expect us to check the curb for rot, verify the flashing layers, and water test before we leave. We serve ZIP codes 91001, 91003, and 91104, and we know the roof pitches and materials common to each part of town.
Service Areas
Historic homes with mature deodar cedars drop needles that trap moisture against skylight flashing and speed up corrosion.
1950s ranches with original skylights and flashing that has often been patched multiple times instead of replaced.
Flat-roof additions and modern builds where standing water around skylights is the main cause of flashing failure.
Higher elevation means more wind-driven rain and faster UV breakdown of sealant on exposed skylight curbs.
Newer construction where flashing is usually sound but sealant needs refreshing every few years.
Local Considerations
Intense summer UV exposure
Dries out and cracks polyurethane sealant within two to three seasons, opening gaps that let water in during the first winter storm.
Wind-driven winter rain from the south and west
Pushes water under loose counter flashing and step flashing, which is why we check fastener tightness on every repair.
Aging housing stock with original skylights
Older flashing is often corroded or patched repeatedly, so we replace rather than reseal whenever the metal has failed.
Mountain-adjacent debris and needles
Leaves and needles trap moisture against flashing, speeding corrosion and clogging drainage around skylight curbs.
Ceiling Stain Stopped in West Altadena
A homeowner noticed a spreading brown stain on the ceiling below a 1960s skylight. The flashing had been patched twice with roofing cement, and the sealant was cracked and peeling. Water was tracking along the roof deck and dripping near a recessed light.
We removed the old flashing and patch material, replaced a soft section of curb wood, and installed new galvanized steel step flashing and counter flashing bedded in butyl tape. The water test ran clean, and the ceiling stain stopped spreading within a week.
Maintenance & Follow-up
We recommend a flashing inspection every two years and a sealant refresh every three to four years to keep the repair holding through Altadena's UV and rain cycles.
A flat-roof addition had standing water around the skylight after every storm, and the original modified bitumen flashing was lifting at the edges. The homeowner had tried roof cement twice with no lasting result.
We rebuilt the flashing with new modified bitumen and EPDM membrane, sealed the edges with polyurethane sealant, and adjusted the surrounding drainage so water moves away from the skylight. Two rainy seasons later, the ceiling is still dry.
Maintenance & Follow-up
Keep the roof clear of debris so water drains away from the skylight, and have the membrane checked once a year before the rainy season starts.
A home near Farnsworth Park was heading to inspection with a skylight that had leaked on and off for years. The counter flashing was loose, the step flashing was corroded, and the buyer's inspector flagged the skylight as a concern.
We replaced the corroded flashing with copper step flashing and counter flashing, resealed every seam, and water tested the assembly. The inspection cleared, and the buyer received before-and-after photos plus a written workmanship warranty.
Maintenance & Follow-up
An annual roof inspection keeps small flashing issues from becoming inspection problems, especially on homes older than 40 years.
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 skylight flashing repair cost in Altadena CA?
Most skylight flashing repairs in Altadena run $350 to $1,200 in 2026, depending on roof pitch, material, and whether the curb needs wood repair. Flat and tile roofs sit at the higher end. We give you a flat price before we start, so there are no surprises after the flashing comes off.
Why is my skylight flashing leaking in Altadena, California?
The most common cause is cracked or dried-out sealant around the flashing, which fails after two or three summers of Altadena UV. Loose counter flashing and corroded step flashing are the next most common. Wind-driven winter rain pushes water under any gap and it tracks along the roof deck before showing up as a ceiling stain.
Can you fix skylight flashing leaks in Altadena?
Yes. We repair skylight flashing leaks across Altadena and Los Angeles County, from simple sealant refreshes to full flashing replacement with new step flashing and counter flashing. Every repair ends with a water test and a written workmanship warranty. Most jobs finish in a single visit of two to four hours.
Do you offer skylight flashing fix near me in Altadena?
We serve all of Altadena, including ZIP codes 91001, 91003, and 91104, plus the surrounding Los Angeles County area. Most repairs get scheduled within three to five business days, and active leaks move to the front of the line. Call and we will get a crew out to look at your skylight.
Licensed, Certified, and Local
Certifications
Customer Reviews
Our skylight had been leaking for two winters and two other companies just smeared more roof cement on it. Hometown Roof Protectors pulled the old flashing, replaced a rotted piece of curb, and installed new copper flashing. No leaks since, and they sent photos of everything.
Called about a ceiling stain under our skylight in West Altadena. They came out the next day, found the cracked sealant and loose counter flashing, and had it fixed in one visit. Flat price quoted upfront, no surprises. Water test before they left.
We had them repair skylight flashing on a flat-roof addition in East Altadena. They rebuilt it with modified bitumen and EPDM, adjusted the drainage, and it has held through two rainy seasons. Fair price and they explained everything.
Related Services
Explore our other professional services
Roof Flashing Repair
If your skylight flashing failed, other flashing on the roof may be close behind. We inspect and repair step, counter, and valley flashing across Altadena so one repair does not turn into three.
Roof Flashing RepairRoof Leak Repair
Skylight leaks are one of the most common sources of roof leaks in Altadena. When water shows up on your ceiling, we trace it to the true entry point before repairing anything.
Roof Leak RepairChimney Flashing Repair
Chimney flashing fails the same way skylight flashing does, especially on older Altadena homes. We repair both in one visit when they are on the same roof.
Chimney Flashing RepairVent Pipe Flashing Repair
Vent pipe boots crack and leak just like skylight flashing. If you are already having us out for a skylight, we check the vent boots while we are on the roof.
Vent Pipe Flashing RepairValley Flashing Repair
Valleys carry the most water on any roof, and failed valley flashing causes leaks that look like skylight leaks. We repair both with the same materials and standards.
Valley Flashing RepairStep Flashing Repair
Step flashing is the layer directly under your skylight counter flashing. When it corrodes or lifts, the skylight leaks. We replace step flashing as part of most skylight repairs.
Step Flashing RepairCounter Flashing Repair
Loose counter flashing is one of the top causes of skylight leaks in Altadena. We reset or replace it and seal the top edge so wind-driven rain cannot get underneath.
Counter Flashing RepairDrip Edge Flashing Repair
Drip edge protects the roof perimeter, and when it fails, water wicks into the fascia and deck. We repair it alongside skylight flashing when both need attention.
Drip Edge Flashing RepairKickout Flashing Repair
Missing kickout flashing sends water into walls instead of the gutter. On Altadena homes with skylights near walls, we check and repair kickout flashing at the same time.
Kickout Flashing RepairWall Flashing Repair
Wall flashing and skylight flashing share the same failure modes. If your skylight is close to a wall, we inspect both and repair them together for a complete seal.
Wall Flashing RepairRoof Flashing Replacement
When flashing is too corroded to repair, replacement is the better call. We replace skylight, step, counter, and valley flashing with materials matched to your roof.
Roof Flashing ReplacementEmergency Roof Flashing Repair
Active leaks from skylight flashing get priority scheduling. We tarp or seal the area to stop water intrusion, then complete the permanent repair as soon as conditions allow.
Emergency Roof Flashing RepairRoof Flashing Inspection
An annual flashing inspection catches cracked sealant and loose counter flashing before they leak. We inspect skylight flashing along with every other flashing detail on the roof.
Roof Flashing InspectionRoof Flashing Maintenance
Sealant refresh every three to four years keeps skylight flashing sealed through Altadena's UV and rain cycles. Maintenance costs far less than a leak repair.
Roof Flashing MaintenanceRoof Flashing Sealing
When flashing is sound but sealant has failed, sealing is the fast, affordable fix. We clean the flashing and reseal with polyurethane rated for UV exposure.
Roof Flashing SealingMetal Roof Flashing Repair
Metal roofs need flashing details that account for expansion and contraction. We repair skylight flashing on metal roofs with materials and fasteners made for the substrate.
Metal Roof Flashing RepairShingle Roof Flashing Repair
Most Altadena homes have shingle roofs, and skylight flashing on shingles must be woven into the courses correctly. We lift shingles, install new flashing, and reset them cleanly.
Shingle Roof Flashing RepairTile Roof Flashing Repair
Tile roofs need lead or copper flashing that can be shaped around the tile profile. We lift tiles carefully, install new flashing, and reset them without breakage.
Tile Roof Flashing RepairFlat Roof Flashing Repair
Flat roofs hold standing water, which is hard on skylight flashing. We rebuild it with modified bitumen and EPDM membrane for a durable seal.
Flat Roof Flashing RepairCommercial Roof Flashing Repair
Commercial buildings with skylights need flashing that handles heavy foot traffic and thermal movement. We repair TPO and modified bitumen flashing on commercial roofs across Los Angeles County.
Commercial Roof Flashing RepairResidential Roof Flashing Repair
From single skylights to full roof flashing systems, we handle residential flashing repair across Altadena with the same materials and standards on every job.
Residential Roof Flashing RepairStorm Damage Flashing Repair
After a big storm, skylight flashing is often the first thing to fail. We inspect, document the damage, and repair the flashing so your ceiling stays dry.
Storm Damage Flashing RepairRoof Flashing Installation
New skylight installations need flashing done right the first time. We install step, counter, and pan flashing to NRCA standards so the skylight never leaks.
Roof Flashing InstallationCustom Flashing Fabrication
Some skylights and curbs do not fit standard flashing sizes. We bend custom pieces on a flashing brake to match your exact dimensions and roof pitch.
Custom Flashing FabricationRoof Flashing Leak Detection
When you cannot tell whether the leak is the skylight or something else, we trace it with water testing and inspection. You get a clear answer before any repair starts.
Roof Flashing Leak DetectionGutter Flashing Repair
Gutter flashing and skylight flashing often fail in the same storm. We repair both so water moves off the roof instead of backing up under the skylight.
Gutter Flashing RepairRoof Flashing Waterproofing
Waterproofing adds a protective layer over repaired flashing. We apply membranes and sealants rated for Altadena's UV and rain to extend the life of the repair.
Roof Flashing WaterproofingRoof Flashing Repair Near Me
If you are searching for roof flashing repair near you in Altadena, we cover the whole city and surrounding Los Angeles County. Call and we will schedule an inspection.
Roof Flashing Repair Near MeGet Skylight Flashing Repair Altadena CA Scheduled Today
A leaking skylight gets worse with every storm. Call Hometown Roof Protectors and we will inspect the flashing, give you a flat price, and repair it before the next rain. Licensed, insured, and local to Altadena.