Chimney Flashing Repair & Replacement in Nashville, TN

The most common chimney leak in Middle Tennessee starts here — let’s fix it for good.

Chimney Flashing For Your Roof

If your roof has a chimney, it also has one of the most common leak points on the entire system.

Chimney flashing is designed to seal the area where your roof meets the chimney. When done correctly, it keeps water out for decades. When done wrong or reused, it is often the first place a roof will fail.

At Mr. GoodRoof, chimney flashing is treated as a critical part of the roofing system, not a detail to overlook.

Chimney flashing on a roof
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Chimney Flashing Repair or Replace

This is one of the most common leak areas—let’s fix it at the source.

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Chimney Flashing Replacement

Chimney Flashing Repair

What Is Chimney Flashing?

Chimney flashing is a combination of metal components installed around the base of the chimney to prevent water from entering the home.

Because a chimney interrupts the surface of the roof, shingles alone cannot seal this area. Flashing is required to bridge the gap and direct water safely away.

A proper chimney flashing system typically includes:

Each piece works together to create a watertight seal.

Chimney flashing on a home in nashville tn

Why Chimney Flashing Matters

chimney flashing on a roof in nashville

The area around a chimney is constantly exposed to water.

Rain flows down the roof and hits the vertical surface of the chimney, creating a high-risk zone for leaks. Without proper flashing, water can easily work its way behind the roofing system and into your home.

Chimney flashing helps:

  • Prevent water intrusion at the roof-to-chimney transition
  • Protect interior walls, ceilings, and insulation
  • Extend the life of your roof
  • Avoid costly repairs caused by hidden leaks

This is one of the most important areas to get right.

The Problem with Reusing Old Flashing

One of the most common shortcuts in roofing is reusing existing chimney flashing.

This is often done to reduce cost, but it creates a major risk.

Old flashing may be:

  • Rusted or deteriorated
  • Bent or improperly shaped
  • No longer sealed correctly to the chimney
  • Not compatible with the new roofing system

Reusing these materials can lead to leaks, even if the rest of the roof is brand new.

At Mr. GoodRoof, we replace chimney flashing as part of the system to ensure long-term protection.

How Much Does Chimney Flashing Cost in Nashville?

Chimney flashing repair in Nashville typically ranges from $300 to $800, depending on the extent of deterioration and whether sealant reapplication or partial metal replacement is needed. If the flashing was improperly installed or reused from a previous roof, a full replacement is often the smarter long-term investment.

Full chimney flashing replacement — as part of a complete roof replacement — is included in every Mr. GoodRoof re-roof as a standard component. We never reuse existing flashing or add it as a surprise line item on your estimate.

If you only need the chimney flashing addressed without a full roof replacement, we inspect the complete area first and provide a clear, itemised estimate before any work begins. No pressure. No surprises.

Chimney flashing for a roof in nashville

Custom-Fit for a Proper Seal

Chimney flashing is not a one-size-fits-all component.

Each chimney requires custom fitting to ensure the flashing properly conforms to both the roof and the chimney structure.

This includes precise cutting, bending, and layering of materials so water is directed away instead of allowed to penetrate.

Taking the time to do this correctly is what prevents future problems.

What Is a Cricket and When Is It Needed?

On larger chimneys, especially those located on the slope of the roof, a cricket may be installed behind the chimney.

A cricket is a small, peaked structure that diverts water around the chimney instead of allowing it to pool behind it.

Without a cricket, water can collect on the uphill side of the chimney and increase the risk of leaks.

chimney flashing on a roof in nashville
Flashing for a roof in nashville tn

Signs of Chimney Flashing Problems

Many roof leaks can be traced back to chimney flashing.

Some signs to watch for include:

  • Water stains on ceilings near the chimney
  • Leaks during heavy rain
  • Cracked or missing sealant around the chimney
  • Rusted or damaged metal flashing
  • Moisture or mold in the attic near the chimney

If you notice any of these, the flashing should be inspected.

Part of a Complete Roofing System

Chimney flashing works alongside the rest of your roofing system, including:

Each component plays a role, but chimney flashing protects one of the most vulnerable areas on the roof.

A complete roofing system diagram

Installed the Right Way

At Mr. GoodRoof, chimney flashing is installed with precision and attention to detail.

Our process includes:

  • Removing old flashing when necessary
  • Custom fitting new flashing to the chimney
  • Integrating flashing with underlayment and shingles
  • Ensuring proper water flow away from the chimney

This approach helps eliminate one of the most common sources of roof leaks.

Common questions

Chimney Flashing — Answered Honestly

What Nashville homeowners ask about chimney leaks, flashing repair, crickets, and cost — before calling us.

6 questions
Chimney flashing leaks are most commonly caused by deteriorated sealant, rusted or bent metal, improperly installed counter flashing, or flashing that was reused from a previous roof installation. Nashville's freeze-thaw cycles and storm activity accelerate deterioration — which is why we treat flashing as a system component, not an afterthought.
Chimney flashing repair in Nashville typically ranges from $300 to $800, depending on the extent of damage and whether sealant reapplication or partial metal replacement is needed. Full chimney flashing replacement — as part of a complete roof replacement — is included in every Mr. GoodRoof re-roof at no separate charge. We provide free estimates so you know exactly what you're looking at before any work begins.
Yes. If the flashing is the only issue and the surrounding shingles are in good condition, targeted chimney flashing repair is often the right solution. We inspect the full area first and give you an honest recommendation — repair if it will solve the problem, replace if it won't. We never push a full roof replacement when repair will do the job. See chimney flashing repair options →
A chimney cricket is a small peaked structure installed behind a chimney to divert water around it. It is typically required when the chimney is wider than 30 inches or positioned on the slope of the roof where water naturally collects. Without a cricket, water pools behind the chimney and significantly increases leak risk. Cricket installation typically adds $300–$600 to a roof replacement, depending on chimney width and pitch.
Properly installed galvanized steel or aluminum chimney flashing typically lasts 20–30 years. Copper flashing can last 50+ years. Flashing that was improperly installed, reused from a previous roof, or exposed to heavy storm activity may fail in as few as 5–10 years — which is why we never reuse existing flashing on any Mr. GoodRoof installation.
Signs include water stains on ceilings or walls near the chimney, visible rust or damage on the metal flashing, cracked or missing sealant around the chimney, moisture or mold in the attic near the chimney, and leaks during or after heavy rain. If you're seeing any of these, schedule a free inspection before the next storm season.

Still have questions? We're happy to help.

Free inspection · No obligation · Nashville & Middle TN

Schedule Free Inspection Call (615) 824-8100

Get a Roof Inspection from Mr. GoodRoof

If your home has a chimney, it is important to make sure this area is properly protected.

Mr. GoodRoof provides thorough inspections and evaluates chimney flashing as part of the full roofing system.

Contact us today to schedule your inspection and make sure your roof is sealed where it matters most.

Chimney Flashing Repair     I    Chimney Flashing Replacement

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