National guide
Fibreglass vs Concrete Pools: Cost, Lifespan and Upkeep
Fibreglass pools install faster and usually cost less. Concrete pools can be any shape or size but cost more and need resurfacing more often.
Updated November 2026
Fibreglass pools usually cost less, install in weeks and have a smooth, chemically inert surface. Concrete pools cost more and take months to build, but they can be built to any shape, size or depth. The right choice depends on your site, design and budget, and on how long you plan to stay.
Side-by-side comparison
| Fibreglass | Concrete | |
|---|---|---|
| Typical installed price (2026) | $45,000 to $85,000 | $55,000 to $110,000+ |
| Time on site | About 1 to 6 weeks | About 2 to 4 months |
| Shape and size | Limited to manufacturer moulds; width limited by road transport | Any shape, size or depth |
| Interior surface | Smooth gelcoat, chemically inert | Render, pebble, tile or glass bead |
| Resurfacing | Every 15 to 30 years | Every 10 to 15 years |
| Expected lifespan | About 25 to 40 years; shell warranties often 25 years | About 30 to 50 years |
Cost
Fibreglass is usually cheaper for a standard size because the shell is made in a factory. Concrete costs more because it is formed, reinforced and finished on site. The gap narrows on difficult sites, where crane access for a fibreglass shell can be expensive. See our pool installation cost guide for full price ranges.
Installation time
A fibreglass shell can be delivered, craned in and plumbed within days once the hole is dug, although the whole job commonly takes one to six weeks. Concrete involves excavation, steel, spraying, curing, rendering and finishing, and usually takes two to four months on site.
Design flexibility
Concrete wins on design. It suits unusual blocks, infinity edges, integrated spas and custom depths. Fibreglass shapes are limited to the moulds a manufacturer makes, and shells wider than about 4.5 m can be hard to transport.
Upkeep and water chemistry
Both pool types suit salt or chlorine. The smooth fibreglass gelcoat resists algae and needs less brushing. Concrete and pebble interiors are porous, can need more acid to keep the pH stable, and leach alkalinity for 10 to 12 weeks after a new interior is applied. Salt chlorinators push the pH up in both.
We found no reliable published source that compares annual running costs by pool type. Pump, heating and chemical costs depend more on pool size, cover use and equipment than on the shell.
Lifespan and resurfacing
A well-built concrete pool can last 30 to 50 years but needs resurfacing every 10 to 15 years. Fibreglass shells commonly last 25 to 40 years and need a gelcoat refresh every 15 to 30 years. See our pool tile repair guide for resurfacing and tile costs.
Which should you choose?
- Choose fibreglass for a fast, lower-cost install on an accessible block, with less maintenance.
- Choose concrete for a custom shape, a difficult block, an integrated spa or a specific depth.
Estimate both with the pool build cost calculator, then compare pool builders.
Frequently asked questions
Which lasts longer, fibreglass or concrete?
A well-built concrete pool can last 30 to 50 years. Fibreglass shells commonly last 25 to 40 years. Both depend on installation quality and care.
Is a fibreglass pool cheaper to maintain?
Usually. The smooth gelcoat resists algae and needs less acid and brushing than a porous concrete interior.
Can a fibreglass pool be installed on a sloping block?
Often yes, but retaining walls, engineering and crane access can add significant cost.