We install fibreglass and nothing else, so take this for what it is. Here is where each type genuinely wins, including the situations where fibreglass is the wrong answer.
A fibreglass pool is manufactured in a factory under controlled conditions and delivered as one finished shell. A concrete pool is built in your backyard: excavated, steel-reinforced, sprayed or poured, then given an interior finish such as plaster, pebble or tile. Vinyl liner pools are a third option, using a supported frame with a replaceable liner.
Nearly every practical difference between them follows from where the pool is actually made.
This is the clearest gap. A fibreglass shell is craned in and set in a day. The programme around it, covering excavation, plumbing, concrete surround, fencing and landscaping, is what determines the overall length of the job, and that is measured in weeks.
A concrete pool is built in stages on site, with curing time between them. The structure alone takes considerably longer, and your section is an open construction site throughout. If timing matters to you, this is the difference that will matter most.
A fibreglass shell has a gelcoat interior: sealed, smooth and non-porous. It is comfortable underfoot, which anyone who has scraped their toes on a rough pool floor will appreciate, and there is very little for algae to grip.
Concrete is porous. It needs an interior finish, that finish is rougher, and it gives algae somewhere to establish. Interior finishes also have a service life, and a concrete pool will need resurfacing at some point in its life, which a fibreglass shell does not.
Because the surface is sealed, a fibreglass pool generally holds its water balance with less chemical input, and the surface itself needs less scrubbing. Concrete's porosity and its typically higher pH demand mean more attention, more often, over the life of the pool.
Neither type looks after itself, although we do offer equipment upgrades that automate a good deal of the pool maintenance. The difference is in how much of your weekend it asks for.
We install fibreglass only, so we will be straight about this: there are jobs a concrete pool does better.
Vinyl liner pools install faster than concrete and offer some shape flexibility. The trade-off is the liner: it is the wearing part, it can be punctured, and it needs replacing on a cycle rather than lasting the life of the pool. It is a different set of compromises to either of the other two.
Start with the section rather than the pool. Access, slope, boundaries and services will rule out some options before you have chosen anything. Then be honest about how you will use it, whether that is laps, kids, entertaining or somewhere to cool off after work, because that determines shape and depth more than any material comparison does.
If a fibreglass shape fits how you want to swim and the section can take one, it is the faster, lower-maintenance route. If it does not, you want a concrete builder, and we would rather tell you that at the site visit than sell you the wrong pool.
We will look at your section, tell you what will fit and what the ground and access mean for the job, and give you a written quote for the whole build.
No hoses, no cables, worth over $3,000, free with every pool install booked by 31 August. T&Cs apply.
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