Properly installed cedar siding can last 20 to 40 years in Miller Place, even with our challenging coastal weather conditions. The key is professional installation with proper moisture barriers and regular maintenance every 3-5 years.Cedar’s natural oils provide built-in resistance to rot, insects, and decay, which is why it performs so well in Suffolk County’s humid summers and freeze-thaw winter cycles. Western Red Cedar, in particular, has been protecting Long Island homes for generations because it naturally handles moisture without breaking down.The lifespan depends heavily on installation quality and maintenance. When we install cedar siding, we use techniques specifically designed for coastal environments—proper ventilation, moisture barriers, and flashing details that prevent water intrusion. With periodic cleaning, staining, or sealing, your cedar siding will continue protecting and beautifying your home for decades.