The difference is significant, especially in Suffolk County’s climate. Plastic gutter guards may cost less initially, but they often fail within a few years due to our temperature extremes and UV exposure from coastal sun reflection.Plastic guards crack in winter cold, warp in summer heat, and become brittle from constant freeze-thaw cycles. We’ve removed countless failed plastic systems that homeowners thought would save money. Instead, they end up paying twice – once for the cheap guards, then again for proper replacement.Heavy-gauge aluminum guards, like what we install, are engineered for Long Island’s conditions. They won’t crack, melt, or deform through decades of coastal storms, snow loads, and temperature swings. The micro-mesh technology provides superior debris blocking while maintaining excellent water flow. While aluminum costs more upfront, it’s actually the more economical choice when you factor in longevity and performance.