Chimney Repair in Nassau County — Pointing, Crowns, Flashing & More

Chimney pointing runs $600–$900 for typical sections. Crown repair starts at $395. Flashing repair varies by scope. DME Maintenance provides free on-site estimates — call 516-690-7471.

Common signs: white staining (efflorescence) on exterior brick, crumbling mortar, water stains near the firebox, rust on the damper, a cracked or missing chimney crown, or water in your mechanical room after rain.

Water damage is progressive. What starts as cracked mortar becomes loose brick, then structural damage and water in your walls. A $600 pointing job ignored for two seasons can become a $4,000 structural repair.

Most Nassau County chimneys can be repaired rather than rebuilt. Full rebuilds are warranted only when the masonry structure has failed at the foundation or when more than 50% of the brick is spalling. DME Maintenance will give you an honest assessment — we recommend the most cost-effective solution, not the most expensive.

Some insurance policies require proof of regular chimney maintenance. A written inspection report from DME Maintenance documents the chimney condition and can satisfy insurer requirements. Chimney fires resulting from neglected maintenance may affect claim outcomes.

Most chimney repairs in Nassau County are scheduled within one to two weeks. Emergency situations — CO concerns, complete blockages, active leaks — are prioritized for same-week or same-day response. Call 516-690-7471.