A chimney is one of the most exposed parts of a home. In Staten Island and South Brooklyn, decades of freeze and moisture cycles make chimney deterioration extremely common. A failing chimney isn’t just cosmetic. It can cause roof leaks, structural instability and even fire risks.

Here’s how to identify a failing chimney before it becomes a full structural repair.

The Most Common Warning Signs

• Cracked, loose or missing mortar joints due to water intrusion and freeze cycles.

• Spalling brick, where the outer layer flakes or breaks apart.

• Leaning or shifting, a sign the chimney base or structure is failing.

• Rust on the firebox or damper, caused by hidden water penetration.

• Water stains in the attic or ceiling near the chimney chase.

• Damaged or missing chimney cap, leading to direct water entry.

Why It Happens Locally

Older homes in 103xx and 11209 / 11214 / 11228 often have unlined or minimally lined chimneys. Salt air, heavy storms and decades without repointing eat away at brick and mortar. Many chimneys are also tied into older roofs with outdated flashing.

What Homeowners Should Do

• Look for mortar decay or brick flaking at eye level.

• Check the flashing around the chimney while inspecting the roof line.

• Inspect attic areas for moisture or staining near the chimney.

• Consider repointing or rebuilding before leaks spread into the structure.

A failing chimney can reveal the full story of how a home has aged. It’s one of the first exterior clues I check during a walkthrough.

—

Joseph Ranola | Five-Star Staten Island & South Brooklyn Realtor® (30 + Google reviews)
Associate Broker · Matias Real Estate | Founder · Bridge & Boro Team
Serving 103xx and 11209 / 11214 / 11228 | $25 M + closed volume
📞 917-716-1496 | ranolarealestate.com