10 Reasons Why Fibreglass Pools Often Make More Sense Than Concrete

For a long time, concrete (gunite) pools were seen as the gold standard for inground swimming pools. Today, that assumption is being challenged, and for good reason.

Fibreglass pools aren’t right for every single backyard, but for many homeowners, especially here in Ontario, they’ve become the preferred option. Over the past decade, we’ve seen a clear shift toward fibreglass as people look for pools that are easier to own, more predictable to install, and simpler to maintain long term.

So why the surge in popularity? Here are 10 reasons fibreglass pools are increasingly chosen over concrete pools.

1. Significantly Less Maintenance

Fibreglass pools have changed the way many people think about pool ownership. Thanks to their smooth, non-porous gelcoat surface, algae has a much harder time taking hold.

Most fibreglass pool owners spend less than 30 minutes per week on routine maintenance. Less brushing, fewer chemical adjustments, and more time enjoying the pool.

2. They Work Exceptionally Well with Saltwater Systems

Saltwater chlorine systems are popular for their softer feel and convenience, but salt can be hard on concrete and plaster surfaces over time.

Fibreglass surfaces are not affected in the same way, making them a natural fit for saltwater systems without accelerating surface wear or increasing future resurfacing costs.

3. Lower Long-Term Cost of Ownership

While fibreglass and concrete pools can be similar in upfront cost, the long-term numbers often tell a different story.

With fibreglass, there’s:

• No resurfacing cycle
• Less chemical usage
• Lower ongoing maintenance costs

Over the life of the pool, those savings add up.

4. Faster, More Predictable Installation

Concrete pools are built entirely on site and can take months to complete, depending on weather and scheduling.

Fibreglass pools are factory-built and installed as a single shell. In many cases, installation, including decking, can be completed in a matter of weeks, not months. That means less disruption to your backyard, your neighbours, and your summer.

5. Much Easier on Feet and Swimsuits

Concrete pool surfaces can become rough over time, leading to scraped toes, worn swimsuits, and uncomfortable play for kids.

Fibreglass pools remain smooth underfoot, making them more comfortable for swimmers of all ages, especially families with young children.

6. Attractive to Future Homebuyers

Today’s homebuyers are more informed than ever. Many now recognize that fibreglass pools come with fewer long-term maintenance demands and fewer surprises.

As a result, fibreglass pools are often viewed as a lifestyle upgrade rather than a future project, a meaningful advantage in resale situations.

7. Algae Has a Harder Time Taking Hold

Because fibreglass surfaces are non-porous, algae struggles to attach itself. This translates to:

• Cleaner water
• Fewer shock treatments
• Less brushing

It’s one of the biggest quality-of-life benefits for homeowners.

8. Built-In Seating Comes Standard

Modern fibreglass pools typically include integrated steps, benches, and often tanning ledges as part of the design.

With concrete pools, these features are custom add-ons that increase both cost and build time. With fibreglass, they’re part of the package from day one.

9. Uses Fewer Chemicals Overall

Less algae growth and a non-porous surface mean fibreglass pools generally require fewer chemicals to maintain clear, balanced water.

That’s easier on the pool, easier on swimmers, and easier on the environment.

10. Built to Perform in Canadian Conditions

Ontario’s soil conditions and freeze-thaw cycles can be tough on rigid structures. Fibreglass pool shells are engineered to be both strong and flexible, allowing them to better handle ground movement over time.

This consistency and resilience are a major reason fibreglass has become such a reliable choice in Canadian backyards.

Final Thoughts

Concrete pools still have a place, particularly for highly custom designs. But for many homeowners, fibreglass offers a more predictable, lower-maintenance, and easier-to-own solution.

At Main Street Pool & Spa, we’ve seen firsthand why fibreglass pools continue to grow in popularity. They’re not about cutting corners, they’re about building smarter.

If you’re exploring inground pool options and want guidance that’s honest, practical, and tailored to Ontario conditions, our team is always happy to help.