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A well-built pool can last decades. Concrete or gunite designs often reach 50 to 100 years, fiberglass pools will last 25 to 30, and vinyl-lined pools can last 20 years with liner changes every six to 12 years. Above-ground models last closer to 10 to 15 years. Regular cleaning and balanced water chemistry are key to hitting the upper end of each range.

Most in-ground pools take two to three months from permits to first swim. Expect two to six weeks for the permits process, a week for excavation, then another one to two months for construction, plumbing, and electrical work. Bad weather can slow progress, so build a little buffer into your schedule.

Fiberglass pool shells have a smooth, non-porous surface that resists algae, so you’ll use fewer chemicals and spend less time scrubbing. Unlike concrete, they never need resurfacing, and there’s no liner to replace. Those advantages translate to lower annual costs and a pool that stays sparkling with minimal effort for decades.