Roof Flashing Installation

Proper water management is essential for protecting your home from costly damage, and roof flashing installation serves as your roof's first line of defense against water infiltration. Flashing creates watertight seals around vulnerable areas like chimneys, vents, skylights, and roof valleys where different materials meet. Without professionally installed flashing, even minor gaps can allow water to penetrate your roof system, leading to rot, mold, and expensive structural repairs.


Santa Monica Elite Roofing specializes in precision flashing installation using premium materials designed to withstand coastal conditions. Our experienced team understands how Santa Monica's salt air, ocean winds, and seasonal rains can compromise inferior flashing materials and improper installation techniques. 


Our comprehensive flashing services cover all roof penetrations and critical areas, including step flashing along roof edges, valley flashing for water runoff, and specialized flashing around chimneys and HVAC equipment. We ensure every installation meets local building codes and manufacturer specifications while providing the durability your coastal home requires.


Whether you're building new construction, replacing deteriorated flashing, or upgrading your existing roof's water management system, our attention to detail and quality craftsmanship delivers reliable protection that keeps your home dry and secure for years to come.

What Is Roof Flashing and Why Is It Essential?

Roof flashing is a thin material, usually metal, installed at key points on a roofing system. Its primary purpose is to direct water away from vulnerable areas like joints, chimneys, vents, and skylights.


Without proper roof flashing, water infiltration can occur. This leads to water leaks that damage the underlying structure of your home. Over time, these leaks promote mold growth and compromise the integrity of your roof and walls.


We install roof flashing to create a continuous barrier that protects your home from water damage. It reinforces the roofing system by sealing gaps where water could enter.


At Santa Monica Elite Roofing, we understand that even minor imperfections in flashing can cause significant issues. That is why we prioritize precise installation using durable materials suited for the Santa Monica climate.


Proper flashing is not just an add-on; it’s an essential part of an effective roofing system that safeguards your home against water damage and costly repairs.

Our Specialized Flashing Solutions

Every roof feature requires flashing tailored to its specific design to ensure effective water protection. We focus on precise installation methods and materials that match the shape and function of each element to prevent leaks and extend roof life.

Chimney Flashing

Chimneys pose a high risk for leaks because of the gaps between masonry and roofing materials. We use step flashing combined with counter-flashing for a secure seal.


Step flashing consists of overlapping metal pieces layered with shingles, directing water away from the chimney base. Counter-flashing seals the upper edges by embedding into the chimney mortar joints.


Materials like galvanized steel or aluminum resist rust and withstand thermal expansion. Proper chimney flashing requires careful integration with both masonry and roofing to handle movement and prevent water penetration.

Skylight Flashing

Skylights are vulnerable points for water intrusion due to their protruding glass surfaces. We employ custom metal flashing shaped to fit the skylight’s frame and the roof pitch.


Flashing must be installed with close attention to overlap and sealing at all edges. A metal apron flashing is often placed on the lower side, with step flashing along the sides, and counter-flashing on top.


We use durable, corrosion-resistant metals and ensure the flashing directs water smoothly to the gutters, avoiding pooling near the skylight frame.

Flashing Around Roof Vents

Roof vents require flashing to prevent leaks where the vent pipe penetrates the roof deck. We typically use pipe boots or vent flashing made from flexible rubber collars attached to metal bases.


These units conform tightly around the vent and are sealed with roofing cement or sealant to prevent water entry. Proper flashing installation includes securing the metal base beneath the shingles and sealing overlaps.


Given heat exposure and weathering, we choose materials that remain pliable and durable, reducing cracking and water seepage risks.

Roof Valleys and Complex Angles

Roof valleys are natural channels where two roof planes meet and funnel large volumes of water. We install valley flashing using either open metal flashing or woven/shingle valley methods.


Open metal flashing involves a continuous piece of galvanized steel or aluminum laid under the shingles, ensuring a smooth water path. Complex angles require custom-cut flashing pieces to fit precisely, avoiding gaps or bends.


We use rigid metal flashing for durability and seal all joints carefully. Correct flashing in these areas prevents water from pooling and entering under shingles during heavy rain.

Flashing Repair and Replacement

We focus on maintaining the integrity of your roof by addressing flashing issues promptly. Our approach ensures water does not penetrate weak points, preventing further damage. Both repair and replacement services are performed with precision and durable materials.

Expert Flashing Repair 


We specialize in repairing roof flashing that has deteriorated, bent, or separated from its seal. Our team inspects flashing around chimneys, vents, and roof joints to identify leaks or rust. Prompt repair stops water infiltration that can cause wood rot or mold.


Our technicians use galvanized metal or aluminum, matching your existing materials for seamless integration. We prioritize fixing step flashings and counter flashings to ensure each joint is watertight. We offer detailed roofing quotes so you understand the scope and cost of repairs upfront.


Flashing Replacement


When flashing damage is extensive or beyond repair, we recommend a full replacement. This involves removing old flashing and installing new metal pieces with precise overlaps and secure sealing.


We use long-lasting materials like galvanized steel or copper tailored to your roof type, ensuring proper water diversion. Replacement improves roof durability and reduces future maintenance needs. Our team handles all roofing services, guaranteeing code-compliant installation.


We provide transparent quotes for flashing replacement, helping you make informed decisions without surprises. Our experience allows us to complete replacements efficiently with minimal disruption.

Frequently Asked Questions About Roof Flashing Installation


  • How much does roof flashing installation cost?

    Roof flashing installation costs typically range from $200-$800 for small sections like around chimneys or vents, while comprehensive flashing replacement can cost $800-$2,500 depending on your roof's complexity and size. Factors affecting cost include flashing material type, roof accessibility, and the number of penetrations requiring flashing. We provide detailed estimates that outline exactly what work is needed and the materials required for your specific project.


  • Who installs professional roof flashing near me?

    Santa Monica Elite Roofing specializes in expert roof flashing installation throughout Santa Monica and surrounding coastal areas. We're a licensed roofing company with extensive experience installing all types of flashing, from chimney and vent flashing to complex valley and step flashing systems. Our team understands the critical importance of proper flashing installation and uses premium materials designed to withstand Santa Monica's coastal environment and weather conditions.

  • What's the best material for roof flashing installation?

    The best flashing material depends on your roof type, location, and budget. Aluminum flashing offers excellent corrosion resistance and affordability, while copper provides superior longevity and weather resistance. For Santa Monica's coastal climate, we often recommend marine-grade aluminum or copper flashing that resists salt air corrosion. Galvanized steel works well for certain applications, though it requires more maintenance in coastal areas. We'll recommend the most suitable material based on your specific roof and environmental conditions.

  • How long does roof flashing installation take?

    Most roof flashing installation projects take half a day to two full days depending on the scope and complexity. Simple vent or chimney flashing typically completes in 2-4 hours, while comprehensive flashing replacement or complex installations around multiple roof features can take 1-2 days. Weather conditions and roof accessibility also affect timing. We provide realistic timeframes upfront and work efficiently to minimize disruption while ensuring proper installation.

  • Do I need permits for roof flashing installation in Santa Monica?

    Permits for roof flashing installation in Santa Monica depend on the project scope. Standalone flashing repairs or replacements typically don't require permits, but flashing work done as part of larger roofing projects usually does. If structural modifications are needed or the work involves significant roof alterations, permits may be required. We are familiar with local building codes and will handle any necessary permits and inspections to ensure your flashing installation meets all requirements.