Durand Hvac Systems - Quogue's Best HVAC Services

Signs of leaky ducts include uneven heating or cooling, higher-than-normal energy bills, and excessive dust. In our coastal climate, temperature shifts can stress older ductwork. Durand HVAC performs a detailed pressure test to locate all leaks. We then use professional-grade mastic sealant or metal-backed tape for a permanent seal, restoring proper airflow, improving comfort, and boosting your system's efficiency to combat our local humidity and temperature swings.

Many Quogue homes have heating systems that are decades old or may have been installed without proper ventilation considerations for our tighter, modern builds. A crack in a heat exchanger or a blocked flue—common in older systems—can lead to a dangerous CO leak inside your home. Durand HVAC emphasizes preventative safety. Our annual maintenance includes a visual inspection of the heat exchanger, combustion analysis, and flue testing to detect early warning signs and ensure your family's safety.

Our comprehensive inspection is tailored to Long Island's needs. We check for duct leaks that waste energy, test for carbon monoxide at the furnace and in living spaces, ensure all combustion gases are venting safely outdoors, clean critical components for efficiency, and verify thermostat calibration. This proactive service not only prevents emergencies but also ensures your system runs reliably during our cold winters and humid summers, saving you money and giving you peace of mind.