Chimney Flashing Repair in Pasadena, CA

Chimney flashing serves as one of the most critical and vulnerable components of your entire roofing system, creating an essential waterproof seal that prevents water infiltration around your chimney where it meets your roof structure. When flashing becomes damaged, deteriorated, or improperly installed, it can rapidly lead to devastating water problems including structural damage, interior flooding, mold growth, and extensive repair costs that can compromise your home's safety and value. At Pasadena Prime Roofing, we specialize in expert chimney flashing repair services that meticulously restore your roof's protective seal and ensure your home remains completely safeguarded against water intrusion and weather-related damage.

We possess comprehensive expertise in identifying the subtle early warning signs of flashing deterioration, from minor cracks and separation to complete failure, and we know precisely how to address these issues quickly, effectively, and permanently using advanced repair techniques. Our experienced team exclusively utilizes premium-grade, weather-resistant materials combined with proven installation methods and precision craftsmanship to ensure every repair delivers lasting performance that effectively stops existing leaks and prevents future water infiltration problems.

If you're committed to avoiding the potentially catastrophic and expensive consequences of roof damage, chimney deterioration, interior water damage, and structural compromise, understanding the importance of timely professional flashing maintenance and repair is absolutely essential for responsible homeownership.

Our comprehensive flashing services are specifically designed to help you maintain a completely safe, consistently dry, and structurally sound home throughout all seasons and weather conditions, providing you with the confidence and peace of mind that comes from knowing your property is thoroughly protected against one of the most common causes of residential water damage.

Types of Chimney Flashing Repairs We Offer

Chimney flashing repairs often involve different parts depending on the problem. These include replacing damaged pieces, fixing worn seals, or creating custom metal shapes to fit unique chimneys. Each approach targets specific leaks or weaknesses to protect the home.

Step Flashing Replacement

Step flashing is a series of small metal pieces installed where the roof meets the chimney. When damaged, water can seep between the roof and chimney, causing leaks.

We remove the old step flashing carefully and install new pieces, overlapping each to direct water away from the chimney. Using corrosion-resistant materials ensures durability.

Proper alignment is key. If flashing isn’t fitted snugly, water can get trapped. Our replacement process secures the flashing tightly to the roof and chimney to prevent further damage.

Counter Flashing Repair

Counter flashing covers and seals the top edge of the step flashing. It generally sits inside the chimney’s mortar joints or wraps around the chimney structure.

Over time, mortar can crack, or the counter flashing can loosen, allowing water into the chimney wall. We inspect for gaps, rust, or broken sections to repair or replace as needed.

We often resecure counter flashing with sealants and new fasteners. In some cases, we apply fresh mortar to fix cracks for a tight, waterproof seal.

Custom Flashing Solutions



Some chimneys have unusual shapes or features that standard flashing won’t fit correctly. We create custom flashing pieces by measuring and shaping sheet metal on-site.

These custom parts are designed to cover all gaps, angles, and joints tightly. This precise fit prevents leaks in difficult areas.

We use strong metals like aluminum or galvanized steel to match roofing materials and ensure long-term protection customized to each chimney’s needs.

Our Chimney Flashing Repair Process

We begin by carefully checking the damage and deciding what materials will work best. Then, we follow clear steps to fix or replace the flashing. Lastly, we make sure everything is sealed tightly and secure to prevent future leaks.

1. Initial Inspection

Our first step is a detailed inspection of the chimney and flashing area. We look for cracks, rust, gaps, or loose pieces that could cause water to enter. We also check how the flashing connects to the chimney and roof to find any weak spots. This inspection helps us figure out if a simple repair will fix the problem or if a full replacement is needed. We document our findings to keep track of what repairs are required. This ensures there are no hidden issues that could cause damage later.

2. Material Selection

Choosing the right material is key to a long-lasting repair. We select flashing materials based on factors like roof type, climate, and chimney size. Common materials include aluminum, copper, and galvanized steel. Each material has benefits; for example, copper is very durable but costs more, while aluminum is affordable and resists rust. We explain our choices so you understand how they will protect your chimney and roof against leaks and weather damage.

3. Repair and Installation Steps

We start by removing any damaged flashing carefully to avoid harm to the roof or chimney. Next, we clean and prep the surfaces to ensure a tight bond with the new flashing. Using the chosen materials, we cut and shape the flashing to fit snugly around the chimney base. We install it with nails or screws, sealed with weatherproof caulking to prevent water from seeping through joints.

We pay special attention to corners and edges, which are common places for leaks. This precise work helps create a watertight barrier that lasts for years.

4. Final Quality Check

After installation, we perform a thorough inspection of the repaired flashing. We test for any gaps, loose edges, or weak spots where water could enter. We check the sealants and fasteners to ensure everything is secure and properly applied. We may use water testing or visual inspection tools for accuracy.

If anything is not perfect, we fix it immediately. Our goal is to leave your chimney flashing fully protected and ready to withstand weather conditions.

Signs Your Chimney Needs Flashing Repair

We often find specific and clear signs when chimney flashing needs fixing. These signs help us know when to act before water causes major damage or safety issues. Paying attention to leaks, rust, and cracked flashing is key.

Visible Water Leaks



Water stains or damp spots on your ceiling or walls near the chimney are clear signs of flashing problems. We look for peeling paint, mold, or mildew, which show water is getting in.

Leaks may also cause wood around the chimney to rot or warp. If you notice drips during rain, this is a strong signal that the flashing seal has failed. Fixing these leaks early saves us money and prevents structural damage.

Rust or Corrosion



Flashing is usually made of metal, so it can rust or corrode over time. We check for discoloration, rough patches, or flaking metal around the chimney base. Rust weakens flashing and causes holes or cracks.

Corroded flashing loses its ability to keep water out. When we see rust, it means the flashing is aging or exposed to harsh weather conditions. Prompt repair or replacement is necessary to protect your home.

Cracked or Missing Flashing

Cracks or gaps in flashing allow water to enter easily. We inspect carefully for any broken, bent, or missing pieces around the chimney. Sometimes flashing becomes loose due to wind or settling of the house.

If parts are missing, water can flow directly into the roof structure. We always recommend repair before the damage spreads. Tight and complete flashing is essential for water-tight protection.

FAQs Chimney Flashing Repair

We cover the common concerns about chimney flashing repair. This includes how we handle the repair, the time it takes, costs, and signs that you may need service. We also explain if repairs are enough or if replacement is necessary and details about warranties.