A leaking chimney almost never leaks where the water shows up inside. We pressure-test every common entry point — flashing, crown, cap, and the brick itself — find the actual source, and fix it once instead of smearing tar over a guess.
Roughly eight out of ten chimney leaks we trace in Quincy and along the South Shore come from failed flashing — the metal seal where the chimney meets the roof — not from the chimney structure at all. The other common culprits are a cracked or undersized crown, a missing or rusted-out cap, porous brick that has lost its water resistance, and worn mortar joints. Each one has a different fix, which is why a proper diagnosis matters more than a fast patch.
Coastal salt air and New England freeze-thaw cycles accelerate all of these failures. Water that gets into masonry freezes, expands, and widens the very cracks it entered through — so a small leak this winter is a bigger repair next winter. Catching it early is almost always cheaper.
We start with a free inspection, isolate the leak path, and quote a flat-rate fix: re-flashing, crown sealing or rebuild, a new stainless cap, targeted repointing, or vapor-permeable waterproofing — whatever the water is actually using to get in. Every leak repair is documented with before/after photos and backed by a written workmanship guarantee.
Tell us what you're seeing and where you are on the South Shore — we'll reply within one business hour with honest next steps and a flat-rate estimate.
Same-day appointments across Quincy and the South Shore. Free estimate over the phone. A real person picks up — no robots, no call centers.