Chimney work in Frederick has to account for Maryland's climate. Frederick County's freeze-thaw cycles and heavy rainfall open up the joint where the chimney meets the roof, crack masonry, and let water into places it should never reach.
Shumaker Roofing has repaired chimneys across Frederick County since 1946. Because we are a roofing company first, we work on the part of the chimney that sits in the roof: the flashing and the crown, which is where most chimney leaks actually begin.
Chimney leaking right now? Call 301-662-0533
Chimney Flashing Repair
Chimney flashing is the metal seal where the chimney passes through the roof, and it is where most of the chimney leaks we see in Frederick County actually start. When it fails, water goes into the roof deck rather than off it.
Signs Your Chimney Flashing Has Failed
Water stains on the ceiling or wall directly below where the chimney passes through the roof
• Damp or discoloured decking visible in the attic around the chimney
• Loose, lifted, or visibly rusted metal at the base of the chimney
• Cracked or missing sealant along the top edge of the counter flashing
• Leaks that show up in wind-driven rain but not in steady rain
What Else We Do On A Chimney
Alongside flashing, we handle minor repairs to the outside of the chimney:
• Crown sealing with Copperfield CrownSeal elastomeric masonry preservative, trowel-applied to the existing crown
• Sealing cracks in brick or mortar with clear Geocel Tripolymer Sealant
• Spray-applied Copperfield ChimneySaver waterproofing across all brick surfaces
• Repair of spalling areas in porous brick
• Wire brushing to remove staining from the sides of the chimney
• Full clean-up and removal of debris from the work area
We are licensed and insured, and we follow safety requirements on every job.
We do not clean chimneys or work inside the flue. If you need the flue swept or inspected, that is a job for a certified chimney sweep.


