24/7 Emergency Service · Washington, DC DC License #410519000552 (202) 531-6114
Louise August Roofing

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Chimney Pointing

Your chimney takes
the worst weather first.

Nothing on your house weathers harder than the chimney — it stands in every storm with no shelter. Repointing its joints is what keeps water out of the rooms below.

Why chimneys fail first

A chimney gets hit from every side: rain driving horizontally, freeze-thaw cycling through winter, and flue gases working from within. Its mortar joints fail years before the walls below do. Once they're open, water tracks down inside the stack and shows up as stains on bedroom ceilings — often blamed on the roof while the real culprit stands right above it.

On DC rowhouses, a failing party-wall chimney can leak into two homes at once. Pointing it is neighborly.

Rooftop masonry, done safely

We set proper roof staging and protection, grind the failed joints to depth, and repoint with mortar matched to the chimney's age — soft lime-based mixes for historic stacks, not hard gray Portland that spalls old brick. Joints are tooled to match the original profile so the repair vanishes.

While we're up there

Every chimney pointing job includes a look at the crown, cap, and flashing — the other three ways chimneys leak. If the crown's cracked or the flashing's lifting, you'll get photos and a separate line-item price. Fix it all in one mobilization and save the second trip charge.

Chimney Pointing questions, answered

Ceiling stains near the chimney, sandy mortar wash on the roof or in gutters below it, visibly receded or cracked joints, and white efflorescence on the stack are the classic signs.
Pointing renews the mortar joints while the brick stays. If bricks themselves are spalled, cracked, or the stack leans, sections need rebuilding — we'll show you honestly which side of the line yours is on.
Done with the right mortar, 25 to 50 years. Done with the wrong (too-hard) mortar, it can damage the brick within a decade — which is why the mix matters.

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