Concrete vs Fibreglass Pool in Toronto: How to Choose
Last updated:By The Pool Trade Desk
Concrete is the choice when the pool has to fit the yard. It is formed on site, so shape, depth and features like a tanning ledge stay open. Fibreglass is the choice when a shorter build and a smooth, low-fuss surface matter more than a custom outline, and when the lot can actually take a one-piece shell delivered by truck and craned over the house. On older Toronto lots, access settles this more often than preference does.
Beyond the price gap, PoolBuilderIndex's own dataset lists 197 pool builders across the Greater Toronto Area at an average Google rating of 4.59★ over 16,404 reviews (August 2026), so you can move from this verdict straight to a ranked shortlist of the companies that do the work.
Where sources disagree, PoolBuilderIndex widens the range rather than picking a favourite. A figure with no named source behind it is left out.
What separates Concrete from Fibreglass on a GTA pool project?
The table
Every row below came out of published Ontario pool pricing, not an estimate. The cell names the source it came from, so you can go and read it yourself before you call anybody.
Concrete vs Fibreglass in the GTA. Researched August 2026, CAD, sources named per cell. Ontario HST applies unless noted.
How it is built
- Concrete
- Sprayed as gunite or shotcrete over steel reinforcement, formed in place in your yard
- Fibreglass
- Moulded at a factory and delivered to the site as a single finished shell
Shape, size and depth
- Concrete
- Open. Custom outlines, depths, tanning ledges, benches and vanishing edges are all possible
- Fibreglass
- Chosen from the manufacturer's models, so the outline, size and depth are fixed before you start
Site access required
- Concrete
- Excavation and concrete equipment must reach the hole, which is usually the limiting factor
- Fibreglass
- The entire shell must reach the yard. Street width, overhead wires, mature trees and a narrow side yard can add crane cost or rule it out
Time on site
- Concrete
- Longer. Several trades and curing stages have to happen in sequence before water goes in
- Fibreglass
- Shorter for the shell itself, which is set in one operation. Excavation, plumbing, backfill, deck and fencing still follow either way
Interior surface
- Concrete
- Plaster, exposed aggregate or tile, applied on site after the shell cures
- Fibreglass
- Factory gelcoat, smooth underfoot and non-porous, finished before it arrives
What ages
- Concrete
- The interior finish is a wear surface and is refinished periodically over the pool's life. The shell itself is permanent
- Fibreglass
- The gelcoat is not on a refinishing cycle. Damage is repaired in place, and matching it is specialist work
Water chemistry
- Concrete
- A cementitious finish interacts with pool chemistry and rewards regular brushing and pH control
- Fibreglass
- A non-porous surface gives algae less to key into, which is the practical argument owners make for it
Changing your mind later
- Concrete
- The shape can be altered in a renovation, because the shell was formed rather than delivered
- Fibreglass
- The shape is the shell. Changing it means a different pool, not a modification
Which pool owner does a concrete pool actually suit?
Concrete
Choose concrete when the yard, not a catalogue, has to set the shape of the pool. It is formed in place, so an awkward lot, a specific depth, a tanning ledge or a wall the pool has to run alongside are all design problems rather than deal breakers. It is the longer build, and the interior finish is something you will refinish once in the pool's life.
- Your lot is sloped, narrow or an unusual shape that no moulded model fits.
- You want a specific feature: a tanning ledge, a bench, a vanishing edge, a set depth for diving or for children.
- A one-piece shell cannot physically reach your backyard, or the crane access to get it there is the expensive part of the quote.
- You expect to renovate the pool one day and want a shell whose shape can be altered.
And who is better off with a fibreglass pool?
Fibreglass
Choose fibreglass when one of the manufacturer's models genuinely suits the yard and the shell can get there. The surface arrives finished, so the disruptive part of the build is shorter, and the gelcoat is smooth underfoot and non-porous. The trade is that the pool's shape, size and depth are settled the moment you pick the model.
- A model in the catalogue fits your yard without you talking yourself into it.
- Delivery and crane access are straightforward: a workable street, no low wires, a side yard or overhead route the shell can take.
- You want the shortest possible stretch with the yard torn up.
- You want a smooth, non-porous surface and less brushing.
What does each cost on a real project?
The money
Both builds are priced in the sourced inground pool cost guide. What a price table cannot show is which way a particular property pushes the decision, and on GTA lots that is usually what settles it. Read each condition below against your own yard.
- Narrow side yard, low wires, or a street a crane cannot set up on
- Points to concrete
- You want a specific shape, depth or a tanning ledge
- Points to concrete
- Sloped or irregular lot no moulded model suits
- Points to concrete
- A catalogue model fits and delivery access is clear
- Points to fibreglass
- You want the yard back as fast as the trades allow
- Points to fibreglass
- You want a smooth, non-porous surface and less brushing
- Points to fibreglass
If access allows a shell and a model fits the yard, fibreglass gives you a shorter build and a surface that arrives finished. If it does not, concrete is the only one of the two that can be made to fit. Ask any builder quoting both to say plainly which constraint they are designing around, and to put the crane and access plan in writing before you compare the two totals.
Frequently asked questions
Is a concrete or fibreglass pool better for a small Toronto backyard?
- It depends on access more than size. A fibreglass shell arrives in one piece and is usually craned into place, so a narrow side yard, low overhead wires, mature trees or a street a crane cannot set up on can make it impractical no matter how small the pool is. Concrete is formed in the yard, so the equipment that has to reach the site is smaller. Have both quoted with the access plan written down.
Which one needs less maintenance?
- The difference is in kind rather than amount. A concrete pool has a cementitious interior finish that interacts with water chemistry, rewards regular brushing, and gets refinished at some point in the pool's life. A fibreglass shell has a factory gelcoat surface that is non-porous and is not on a refinishing cycle, though damage to it is a specialist repair. Both still need the same weekly chemistry, filtration and seasonal opening and closing.
Can I get a custom shape in fibreglass?
- No. A fibreglass pool is moulded in a factory, so you are choosing from the shapes, sizes and depths that manufacturer offers. That is the core trade in this comparison: you gain a finished surface and a shorter build, and you give up drawing the pool around the yard. If the shape matters to you, concrete is the one that can be made to fit.
What does each type cost in the GTA?
- Prices for both build types, with the Canadian source named against every figure, are in the inground pool cost guide linked from this page. No range is quoted here on purpose: an unsourced number is worse than no number when you are about to compare real builder quotes against it.
Questions to ask your contractor
- Are you quoting concrete, fibreglass or vinyl liner, and why that one for this yard? Compare what each build type costs
- Who pulls the enclosure permit and who is responsible if the fence fails inspection?
- What is excluded from this price: deck, fence, electrical, gas, restoring the yard afterwards? See the line items quotes leave out
- How will the machine reach the backyard, and what gets removed or rebuilt to get it there?
- What is the payment schedule, and what triggers each stage?
- Which crews are yours and which are subcontracted, and who is on site daily?
Compare real quotes, not just averages
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