A 'ten-year' spring is really a 10,000-cycle spring, and how fast you get there depends entirely on your household.
The cycle math
One cycle = one full open + close. Two vehicles + teenagers = 5-8 cycles per day, easily. That puts a standard spring at 3.5-5 years.
Naples-specific factors
Humidity keeps a thin film of moisture on the coil year-round. That surface corrosion nibbles cycle life off the top.
How to know yours is nearing end
Door feels heavier by hand, opener sounds like it's straining, or you can see small gaps forming between coils.
Proactive replacement is cheaper
Replacing before failure lets us upgrade both springs to a high-cycle set and skip the emergency fee.
