Quick Answer: This repair typically costs $150 to $2,000 in Maryland, depending on the scope of work. A simple reseal starts around $150. Counter flashing replacement runs $400 to $900. Full flashing replacement, including a chimney cricket, can reach $2,000 or more
Chimney flashing repair in Maryland protects your home from one of the most common causes of hidden roof leaks. Failed flashing lets water seep behind brick and drywall long before a stain ever appears. This guide covers the warning signs, real 2026 costs, and how to pick the right fix for your chimney..
What Is Chimney Flashing?
This repair fixes the metal seal between your chimney and your roof. The seal stops rainwater from entering your attic and walls. In Maryland, freeze-thaw cycles wear flashing down faster than in milder climates.
Most chimneys use two flashing layers working together. Step flashing is woven into the roof shingles. Counter flashing is set into the chimney masonry above it.
When both layers hold, water sheds safely off the roof. When one fails, moisture finds its way in, often silently for months. A free roof inspection can catch failing flashing before it causes interior damage.
Signs of a Chimney Flashing Leak
A chimney flashing leak rarely announces itself right away. Watch for these common warning signs around Maryland homes:
- Water stains on the ceiling or wall near the fireplace.
- A musty or mildew smell after it rains.
- Rust streaks or dark discoloration on the chimney exterior.
- Peeling paint or bubbling drywall near the chimney chase.
- Visible gaps or lifted metal where the chimney meets the roof.
- Damp or stained insulation in the attic near the chimney.
- Cracked or missing mortar along the flashing line.
If you notice two or more of these signs, our roof repair team can assess the damage quickly. Flashing leaks rarely stay small once they start.
Step Flashing vs. Counter Flashing
Many homeowners assume flashing is one single piece of metal. In reality, a proper repair addresses two separate systems working together.
Step Flashing
- Small, L-shaped metal pieces woven between the roof shingles along the chimney sides.
- Pieces overlap like fish scales, directing water downward.
- Usually made from aluminum or galvanized steel.
- Common failure points: loosened nails and lifted edges after storms.
Step flashing is most common on asphalt shingle roofing across Maryland homes.
Counter Flashing
- A second metal layer set into the chimney’s mortar joints.
- Folds down over the step flashing to create a watertight cap.
- Usually a heavier metal, such as copper or lead.
- Often fails when sealant cracks or the metal pulls loose from the mortar.
Homes with durable metal roofing often pair copper counter flashing for a matching lifespan.
A repair that skips counter flashing and relies only on caulk tends to fail within two to three years. A proper repair always addresses both layers together.
Chimney Cricket and Water Diverter
A chimney cricket, also called a saddle, is a small peaked structure behind a chimney. It splits rainwater and routes it around the chimney instead of letting it pool. A water diverter performs a similar job on gentler roof slopes. Building codes generally recommend a cricket when a chimney is wider than 30 inches.
Many older Maryland homes have wide chimneys without a cricket. Routine roof maintenance visits often catch a missing cricket before it causes a leak.
Chimney Flashing Repair Cost in Maryland (2026)
Your repair cost depends heavily on the scope of damage. Below are current average price ranges for the Maryland region.
Cost by Repair Type
- Resealing existing flashing: $150 to $350. Fixes minor gaps or cracked sealant.
- Counter flashing replacement: $400 to $900. The most common repair.
- Full flashing replacement: $900 to $2,000 or more. Replaces both layers, often bundled with a full roof replacement project.
- Chimney cricket or diverter installation: $300 to $800. Added for wide chimneys.
Cost by Flashing Material
- Galvanized steel: $8 to $12 per linear foot. Budget-friendly, lasts 15 to 20 years.
- Aluminum: $7 to $11 per linear foot. Lightweight, prone to denting over time.
- Copper: $20 to $35 per linear foot. Lasts 50-plus years with a natural patina.
- Lead-coated copper: $25 to $40 per linear foot. The most durable option available.
What Affects Your Price
- Roof pitch and chimney height.
- Number of stories on the home.
- Chimney size, shape, and number of flues.
- Hidden damage found once old flashing is removed.
- Whether the repair is bundled with broader roof or gutter installation work.
Ask about financing options if the total project cost is a concern.
Repair or Replace: How to Decide
Consider a repair when damage is isolated to sealant or a small section. Repair also makes sense when flashing is under 10 years old with no visible rust.
Consider full replacement when flashing is pitted, rusted through, or visibly worn. Replacement is also wise if a past repair leak keeps returning, or a recent storm bent or tore the metal, which may qualify for storm damage restoration. A professional inspection is the only reliable way to know which option fits your chimney.
Why Choose Bright View Exteriors
Bright View Exteriors is a licensed roofing and storm restoration contractor headquartered in Beltsville, Maryland. We serve homeowners and commercial property owners across Maryland, Virginia, and Pennsylvania.
What sets our team apart:
- 4.9-star Google rating based on 130+ verified local reviews.
- 45+ years of combined team experience in residential and commercial roofing.
- Free, no-pressure storm inspections are scheduled fast across our service area.
- In-house insurance claim assistance: we meet with your adjuster and document the damage.
- Transparent, upfront pricing with financing options when needed.
- Manufacturer-certified installations with extended workmanship warranties.
Conclusion
Chimney flashing is a small part of your roof with an outsized job to do. Left unchecked, a failed seal can quietly damage walls, ceilings, and insulation. If you noticed any warning signs above, do not wait for the next storm. Reliable chimney flashing repair in Maryland starts with a professional inspection.
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Contact us today to schedule your inspection or get a free quote.
Frequently Asked Questions
What is chimney flashing repair?
This service fixes or replaces the metal seal between a chimney and roof. It stops water from entering the home through that joint. Options range from simple resealing to full flashing replacement.
What are the signs of a chimney flashing leak?
Common signs include ceiling stains near the fireplace, musty odors after rain, and rust streaks on the chimney. Peeling paint and damp attic insulation are also warning signs worth investigating.
How much does chimney flashing repair cost in Maryland?
Typical costs in Maryland range from $150 to $2,000. Price depends on whether the job is a simple reseal, a counter flashing replacement, or a full flashing replacement.
What is the difference between step flashing and counter flashing?
Step flashing is woven into roof shingles along the chimney sides. Counter flashing is set into the chimney masonry and folds over the step flashing to seal it.
What is a chimney cricket?
A chimney cricket, or saddle, is a peaked structure built behind a wide chimney. It diverts rainwater around the chimney instead of letting it pool against the brick.