Emergency Chimney Service Nassau County — Same-Day & 24-Hour Response

Call DME Maintenance immediately if: your carbon monoxide detector has alarmed, you can smell combustion gases inside your home with the heating system running, your boiler or furnace has shut down and you suspect a flue blockage, a storm has displaced chimney components, or you had a puffback. Do not restart the appliance until the flue is inspected and cleared.

DME Maintenance responds to Nassau County emergency chimney calls same day — often within a few hours for active carbon monoxide or no-heat situations. 24-hour response available for urgent safety concerns. Call 516-690-7471 directly for the fastest response.

Immediately: evacuate the home, call 911, then call DME Maintenance at 516-690-7471. Do not re-enter until emergency services have cleared the home. A blocked or cracked flue is one of the leading causes of CO poisoning in Nassau County homes. DME Maintenance will inspect and clear the blocked flue and assess liner condition before the appliance is restarted.

Yes. Modern furnaces and boilers have safety sensors that shut the unit down when flue pressure is abnormal — which happens when the flue is blocked or restricted. A chimney blockage, collapsed liner section, or frozen condensate line can all trigger a shutdown. Call DME Maintenance at 516-690-7471 before calling your HVAC technician — the fix may be a chimney issue, not an equipment issue.

If a chimney cap has blown off, masonry has been displaced, or the chimney crown is visibly cracked after a storm — yes, call DME Maintenance before using the appliance. Rain entering an uncapped flue, or debris from a damaged crown falling into the firebox, can create blockages that back combustion gases into the home.