Concrete vs fibreglass pool: which one, and what each costs in NZ

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 is the difference between a fibreglass and a concrete pool?

A fibreglass pool is a single moulded shell, 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 — engineered and built in place over several months, which is why it costs more.

How much does a concrete pool cost in Auckland in 2026?

Expect roughly $90,000 to $180,000 for a sprayed concrete pool in Auckland, before the fence. That is our arithmetic, not a quote: CheckMyBuilder (June 2026) prices sprayed concrete at $80,000–160,000 nationally, and its Auckland typical for a pool is $84,000 against a national typical of $75,000, about 12% higher. We applied that 12% to the concrete range.

Auckland sections add their own costs on top of the regional uplift: tight infill access, clay and volcanic rock, and older homes where a crane has to lift over the house. Those sit in CheckMyBuilder's $10,000–50,000 access band, which applies to fibreglass and concrete alike. Run your own section through the pool cost calculator, which applies the same regional figures, or read the concrete pool cost page. Outside Auckland, pool costs and council fees in Hamilton and Tauranga have their own pages.

Why do fibreglass pool prices in NZ vary so much between sources?

Because they price 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 a complete, fully installed pool. Add CheckMyBuilder's own extras — 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. The line-by-line breakdown, with crane, fence, heat pump and consent prices and a worked total, is on the fibreglass pool cost page.

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 pool type suits which section?

Fibreglass suits a flat section a truck and crane can reach, because the shell arrives whole and is usually the cheaper and quicker answer. Concrete suits tight access and an unusual shape, depth or edge, because the shape is built rather than chosen from a supplier's moulds. Slope and rock cost more with either, priced within CheckMyBuilder's $10,000–50,000 access band.

• 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 is the cheapest type of pool to put in?

An above-ground pool is the cheapest pool to put in, because there is no excavation and no structure to engineer. Of the in-ground options, a fibreglass shell on a flat, accessible section is usually the cheapest: CheckMyBuilder's $35,000–60,000 for a standard 8 m × 4 m fibreglass pool is less than half the bottom of its $80,000–160,000 range for sprayed concrete.

A cheaper pool still needs a barrier if it can hold 400 mm of water or more, so read the rules for above-ground pools before you buy one. A plunge pool is the other way to cut the bill: less to dig, less shell, less water to heat.

Which is easier to look after, marbelite (concrete) or fibreglass?

Fibreglass is usually less work. Its gelcoat surface is smooth and non-porous, so algae has less to hold on to and the water chemistry is easier to keep steady. A concrete pool is finished with a plaster such as marbelite, or with pebble or tiles; those surfaces are slightly porous, need more brushing, and the interior is eventually redone, which is a cost a fibreglass owner does not budget for in the same way.

• Fibreglass: brush less, watch the gelcoat for fading or chalking over time, and keep the water balanced so the surface is not stained.
• Concrete (marbelite, pebble or tile): brush the walls and floor regularly, keep pH and calcium hardness balanced so the plaster is not etched, and expect a resurface at some point in the pool's life. Ask the builder what the finish is and what they quote to redo it.
• Both: the same filtration, the same 3-yearly barrier inspection and broadly the same running costs. See pool water testing and pool running costs.

What is not included in a pool price in NZ?

Neither the fibreglass nor the concrete figure includes the barrier, heating, surrounds or running costs. CheckMyBuilder prices fencing at $5,000–25,000 with its own building consent, heating at $4,000–15,000, decking, paving and planting at $10,000–60,000, and running costs at commonly $1,000–2,000 a year. Rock breaking or dewatering is extra if it is found once digging starts.

• 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.