Chimney Flashing Repair
Flashing failure at the roofline is one of the most common sources of a chimney leak.
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Chimney Services
Chimney Leak Diagnosis & Repair
A chimney leak can come from several different places — the cap, the crown, the flashing, or the masonry itself. Fixing it starts with correctly finding where the water is actually getting in.
Why Chimney Leak Diagnosis & Repair Matters
Chimney leaks are notoriously easy to misdiagnose, because water rarely shows up where it enters. A leak at the flashing can produce a stain that looks like it's coming from the crown. Water running down the inside of a flue from a missing cap can show up as dampness in the firebox, far below where it actually entered. Fixing the wrong component means the leak comes right back.
The stakes of getting it right go beyond an annoying stain. Left unaddressed, chimney leaks can damage ceilings, walls, and insulation, contribute to mold growth, and accelerate deterioration of the chimney's masonry and internal components.
When You Might Need This
- You've noticed ceiling or wall stains near the chimney
- There's a musty or damp smell near the fireplace
- You can see water in the firebox after rain
- A previous repair didn't actually stop the leak
What Happens
We work through the chimney systematically — cap, crown, flashing, and masonry — to find the actual source of intrusion rather than guessing based on where the damage shows up. This is essentially what a Level 2 inspection is built to do, since it lets us look inside the flue as well as at the exterior components. Once we've confirmed the source, we repair it directly instead of treating symptoms.
Find the Source, Not the Symptom.
Repairing wherever a stain happens to appear is a guessing game. A proper diagnosis finds where the water is actually getting in.
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Chimney Waterproofing
Once the actual leak source is repaired, waterproofing adds ongoing protection against future moisture.
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See the full list of chimney sweeping, inspection, repair, and waterproofing services we offer.
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Frequently Asked Questions
Chimney Leak Diagnosis & Repair Questions
We methodically check each potential source — the cap, crown, flashing, and masonry — along with an internal look at the flue where needed, rather than assuming based on where a stain happens to appear.
Yes. Beyond cosmetic staining, ongoing leaks can damage ceilings and walls, contribute to mold, and accelerate masonry deterioration and liner damage, which get more expensive to fix the longer they're left alone.
We inspect the exterior components most likely to be the source — cap, crown, and flashing — along with the accessible masonry, and can pair the visit with our Level 2 inspection for a full look inside the flue as well.
Ready to Find (and Fix) Your Leak?
Get a real diagnosis before another repair — and ask about our $99 Level 2 inspection.