Fibreglass or concrete: which pool, and what each costs
We do not build either, so here are both, side by side, with sourced New Zealand prices: $35,000–60,000 for a standard fibreglass shell installed, $80,000–160,000 for sprayed concrete (CheckMyBuilder, June 2026).
By NZ Swimming Pools
Key takeaways
- CheckMyBuilder (June 2026) puts a standard 8 m × 4 m fibreglass pool at $35,000–60,000 installed on a straightforward site, and sprayed concrete at $80,000–160,000.
- Installer Ultimate Pools publishes a higher all-in fibreglass figure, $75,000–150,000+, because it is pricing a complete installation rather than the shell and the hole.
- Neither figure includes the barrier. CheckMyBuilder prices fencing separately at $5,000–25,000 and notes it needs its own building consent.
- Access is the wildcard on both: $10,000–50,000 for crane lifts, rock, high water tables and slope.
- CheckMyBuilder's figures exclude GST unless stated. Ultimate Pools quotes retail prices, which include it. Fifteen per cent of $75,000 is $11,250, so ask which you are being shown.
Fibreglass is cheaper and faster because the shell is made in a factory and delivered whole: CheckMyBuilder puts a standard 8 m × 4 m shell at $35,000 to $60,000 installed on a straightforward site. Concrete costs more because it is engineered and built in place over months: $80,000 to $160,000, and past $250,000 for large or highly customised projects. The right answer usually comes down to your section, not your taste.
What each actually is
A fibreglass pool is a single moulded shell. It is made off-site, trucked in and lowered into a prepared hole, which is why CheckMyBuilder describes a factory shell as installing in weeks. A sprayed concrete pool is built where it sits: steel, sprayed concrete, then an interior finish. CheckMyBuilder attributes concrete's higher price to exactly that — the structure is engineered and built in place over several months.
| Pool | Price | Source |
|---|---|---|
| Fibreglass, 8 m × 4 m, straightforward site | $35,000 – $60,000 excl. GST | CheckMyBuilder, June 2026 |
| Fibreglass, wider range as size and equipment move up | roughly $35,000 – $100,000 excl. GST | CheckMyBuilder, June 2026 |
| Fibreglass, complete installation as an installer prices it | $75,000 – $150,000+ incl. GST | Ultimate Pools, June 2026 |
| Sprayed concrete | $80,000 – $160,000 excl. GST | CheckMyBuilder, June 2026 |
| Sprayed concrete, large or highly customised | can pass $250,000 | CheckMyBuilder, June 2026 |
Why two sources give such different fibreglass numbers
Because they are pricing different things. CheckMyBuilder's $35,000–60,000 is a shell installed on a flat, accessible site with basic filtration, explicitly before fencing and landscaping. Ultimate Pools' $75,000–150,000+ is what it calls a complete, fully installed pool. Put CheckMyBuilder's own extras on top of its own base — fencing $5,000–25,000, surrounds and landscaping $10,000–60,000, access $10,000–50,000 — and the two ranges stop looking like a contradiction.
This is the single most useful thing to take into a sales meeting: ask what the number in front of you excludes, and whether it includes GST.
Which suits which section
- Flat, truck and crane can get in: fibreglass is usually the cheaper and quicker answer.
- Tight access: a one-piece shell has to physically get there. A crane over the house is inside CheckMyBuilder's $10,000–50,000 access band, and sometimes the reason a concrete pool ends up cheaper.
- Sloping section or rock: both cost more; the slope is priced in the same access band.
- An unusual shape, depth or edge: concrete, because the shape is built rather than chosen from a supplier's moulds.
What neither price includes
- The barrier: $5,000–25,000 (CheckMyBuilder), with its own building consent. See the fencing rules.
- Heating: $4,000–15,000 (CheckMyBuilder).
- Decking, paving and planting: $10,000–60,000.
- Rock breaking or dewatering if it is found once digging starts.
- Running costs: commonly $1,000–2,000 a year (CheckMyBuilder). See pool running costs.
We do not build either one
NZ Swimming Pools is not a pool builder and has no material of its own to sell you, which is the only reason this page can be neutral. If you want a builder, we will introduce you to one, only if you ask, and we tell you that they pay us. How we work and earn.
Questions
Is a fibreglass pool cheaper than concrete in NZ?
Generally yes. CheckMyBuilder (June 2026) puts a standard 8 m × 4 m fibreglass pool at $35,000–60,000 installed on a straightforward site and sprayed concrete at $80,000–160,000.
How long does each take to build?
CheckMyBuilder gives a typical pool build timeline of 2 to 5 months, and notes that a factory fibreglass shell installs in weeks where sprayed concrete is built in place over several months.
Does either price include the pool fence?
No. CheckMyBuilder lists barrier fencing as usually extra at $5,000–25,000, and points out it needs its own building consent.
Which lasts longer?
We have not published a lifespan figure for either, because we could not find a New Zealand source that measures it rather than asserts it. Ask any builder for their structural warranty in writing instead, and read what it covers.
Sources
Published 16 September 2026, last updated 16 September 2026 by NZ Swimming Pools. Every figure and rule on this page is quoted from a source we read in full on the checked date. See our editorial policy.