Chimney Flashing

Owens Corning Certified Contractor

Chimney Flashing Repair Long Island NY.

Chimney flashing repair Long Island NY by certified roofers. We inspect, repair, and replace chimney flashing to stop leaks at the roof-chimney joint across Long Island.
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Chimney Flashing Repair Long Island NY.

At Mayancelas Jr. Roofing LLC, we provide chimney flashing repair Long Island NY, Queens, The Bronx, and surrounding areas. Chimney flashing is the metal strip that seals the junction between your chimney and the roof. When it fails, water enters the home at that joint, causing ceiling damage, mold, and wood rot. Our team inspects, repairs, and replaces chimney flashing using durable materials and proper sealing techniques on every job. With more than 15 years of experience, we know exactly what causes Long Island chimney flashing to fail and how to fix it right. Every chimney flashing repair Long Island NY includes a thorough waterproof check and written warranty.
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The Benefits of Flashing Repair

A failed chimney seal causes more damage than most homeowners expect. Here is what a proper repair gives you.

Waterproof Sealing at the Chimney-to-Roof Junction

Properly installed chimney flashing creates a waterproof seal at the most vulnerable point of your roof. Once sealed correctly, the chimney-to-roof joint stops shedding water into your attic and ceiling regardless of Long Island weather.

Prevents Interior Damage

A properly sealed chimney stops leaks before they reach insulation and framing. Catching flashing failure early prevents mold, rot, and costly repairs.

Durable Materials Withstand Long Island Weather

We use high-quality metal flashing and sealant rated for Long Island temperature swings and coastal conditions, chosen to hold up without cracking.

Stops Structural and Moisture Damage Early

Water from a failed chimney seal travels through framing before it becomes visible. Repairing the flashing eliminates that entry point and protects your home structure.

How It Works

Our Chimney Flashing Process

From free chimney inspection to final sealant check: thorough, clean, and properly waterproofed on every job.

Free Roof Inspection

Our inspector evaluates chimney flashing condition, checks for rust, separation, and improper sealing, and documents issues. Free, no obligation.

Flashing Report & Written Job Estimate

We provide a written damage report and an estimate covering repair or replacement scope, materials, and timeline. No hidden costs.

Flashing Repair and Sealant.

Our crew removes damaged flashing, prepares the surface, installs new metal flashing, and applies sealant for a waterproof chimney joint. Done right.

Final Inspection & Cleanup

We perform a complete post-repair inspection, verify the seal, clean up all debris, and provide warranty documentation. Your chimney joint is tested before we leave the property.

1 +
Years Experience
100 +
Flashings Done
1 ★
Rated Service
/7
Emergency Service

Completed Chimney Flashing Projects

Chimney Flashing Repair Long Island NY?

Your chimney flashing repair Long Island NY starts with a free inspection and a detailed written estimate. We serve Nassau, Suffolk County, Queens, Brooklyn, and the Bronx. No obligation. Call (631) 882-5324.
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Questions about Chimney Flashing Long Island

Questions about chimney flashing repair Long Island NY? Here are straight answers to what homeowners ask most about leaks and seals.
Chimney flashing is a metal strip installed at the joint between your chimney and roof. It creates a waterproof seal that prevents rain from entering your home at that junction. When it fails, water infiltrates the structure. Chimney flashing repair Long Island NY is one of the most effective ways to stop active leaks at their source.
Common signs include water stains on ceilings or walls near the chimney, visible rust or separation on the metal strip around the chimney base, peeling paint near the chimney interior, or water dripping into the fireplace during rain. If you see any of these, schedule a free inspection right away.
Chimney flashing repairs Long Island NY are commonly needed due to rust and corrosion from coastal salt air, improper original installation, caulk or sealant that has dried and cracked over time, or chimney settling that pulls the flashing away from the masonry. Long Island temperature swings also cause metal to expand and contract, gradually breaking the seal.
It depends on the condition. Minor separation or failed caulk can often be repaired without replacing the full flashing system. Severely rusted or improperly installed flashing usually needs full replacement for a lasting result. We assess during the free inspection and recommend the most cost-effective solution.

Yes. Financing options are available to help Long Island homeowners manage chimney flashing costs. Ask about plans when you call. For certified roofing material details, visit owenscorning.com.

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Phone Number:

(631) 882-5324

Our Email Address:

info@mayancelasroofing.com

Monday to Saturday, 8:00AM - 6:00PM

Sunday Emergencies or Scheduled Appointments

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