Once you decide to build an inground pool, the first real choice is the material: concrete, fiberglass, or vinyl liner. Each has genuine strengths and real drawbacks, and the right answer depends on your budget, your timeline, and how much customization you want.

Concrete (gunite) pools Concrete pools are sprayed and shaped on site, so they can be any size, depth, or shape you can imagine. They are the most durable and the most premium option.

  • Pros: unlimited design freedom, extremely long-lasting, adds the most resale appeal.
  • Cons: the most expensive, the slowest to build (often three months or more), and the rough surface needs periodic resurfacing and more chemicals.

Fiberglass pools Fiberglass pools arrive as a pre-molded shell and are lowered into the prepared hole.

  • Pros: very fast installation (often a couple of weeks), a smooth non-porous surface that resists algae and needs fewer chemicals, low long-term maintenance.
  • Cons: limited to manufactured shapes and sizes, and the shell must fit down your access path.

Vinyl-liner pools Vinyl pools use a custom liner stretched over a frame, offering the lowest upfront cost.

  • Pros: cheapest to install, smooth surface, flexible shapes.
  • Cons: the liner tears and fades, needing replacement every seven to fifteen years at real expense.

How to decide If you want a fully custom showpiece and have the budget, choose concrete. If you value fast installation and low upkeep, fiberglass is hard to beat. If upfront cost is the priority, vinyl gets you swimming for less. Whatever you lean toward, get quotes from builders experienced in that specific type, since a builder's skill with your chosen material matters as much as the material itself.