Chimney Flashing Repair in Rancho Palos Verdes: Written Report, Licensed Technicians

When flashing separates from the chimney or roof deck, the gap it creates is more than a water leak waiting to happen. In fire-prone areas like Malaga Cove, Lunada Bay, and Palos Verdes Estates, that gap becomes an entry point for windborne embers during brush fire season. CAL FIRE data shows that embers can travel over a mile ahead of a fire front, and the Palos Verdes Peninsula's dry chaparral hillsides put homes in direct exposure. A quarter-inch gap between deteriorated step flashing and your roofline is wide enough for a glowing ember to lodge against wood sheathing. The result can be an attic fire that starts silently behind your walls while you focus on evacuation.

Most homeowners on the peninsula think of flashing repair as a leak issue, and it is one. Rain season between November and March punishes any failed seal. But the wildfire-ember angle is the one that gets overlooked. In Palos Verdes Estates, where many homes were built in the 1950s and 1960s with original lead step flashing, decades of thermal cycling and micro-cracking from seismic activity have loosened mortar joints and pulled counter flashing free. If your chimney flashing has lifted, buckled, or shows rust staining on the masonry below, you have two problems: water intrusion today and ember vulnerability during the next Santa Ana wind event. Both are fixable with a proper flashing overhaul, including a cricket installation on the uphill side if your chimney sits on a sloped roof. Our team handles full flashing replacement alongside any needed [chimney repair](/services/chimney-repair) to restore a tight, fire-resistant seal.

A roofer can bend aluminum flashing and caulk it into place. That's not the same as a proper chimney flashing repair. NFPA 211 requires that all chimney components, flashing included, maintain a fire-safe transition between the chimney structure and combustible roofing materials. Our CSIA-certified technicians inspect flashing as part of a full chimney system evaluation. We check for mortar deterioration behind counter flashing, correct clearance from combustible framing, and whether existing step flashing meets current ember-resistance standards. In Lunada Bay and Malaga Cove, where steep lot grades often create large cricket requirements, we size and install diverters that shed both water and debris away from the chimney-to-roof junction.

We use lead counter flashing set into reglet cuts in the masonry, not surface-applied aluminum held on with roofing cement. Lead conforms to irregular stone and brick surfaces common on older Rancho Palos Verdes chimneys, and it won't corrode in the salt-heavy coastal air the way galvanized steel does within a few years. Every installation follows the flashing and weatherproofing guidelines published by the NRCA. If your chimney also shows cracked mortar joints or spalling brick below the roofline, we coordinate [masonry repair](/services/chimney-masonry-repair) at the same time so you aren't paying for two rounds of scaffolding. Call Oakridge Chimney Pros to schedule a flashing inspection before rain season starts.