Fiberglass vs. Gunite Pool: Which is Better?
We did extensive research on the pros and cons of a fiberglass vs. gunite pool before deciding which was best for us. Below, I will explain the differences between each one to help you make the choice that is right for you.
What’s the difference between a fiberglass vs. gunite pool?
Gunite pools are built onsite so you have more flexibility and customization options. The big advantage of a gunite pool is that you can choose any shape, size or depth. Fiberglass pools are built off-site and come ready to be installed. You’re limited on shape and size with fiberglass pools as you have to select from pre-made styles. Fiberglass pools can’t exceed 16″ feet wide in order to accommodate road transportation by truck.
How much does it cost to build a fiberglass vs. gunite pool?
Although cost can vary by region, we found there was not a significant up-front cost difference between figerglass and gunite pools. We priced both and the fiberglass pool was only about $5,000 more than gunite. Maintenance costs over the life of the pool will be significantly higher for gunite.
How long does it take to install a fiberglass vs. gunite pool?
Gunite pools generally take longer to install as they’re built onsite and require a complex framework of rebar and mesh. Fiberglass pools are built offsite and come ready to be installed. With either option, you have to allow time for site preparation and excavation, back-filling, plumbing and electrical work, landscaping and finishing the area around the pool. Generally, fiberglass pools take 6-8 weeks to install while gunite pools take 8-12 weeks, but weather can also impact how long the overall installation takes.
How does the surface vary between a fiberglass vs. gunite pool?
The surface of a fiberglass pool is smooth like a bathtub, while a gunite pool’s surface is rougher. The smooth surface of a fiberglass pool helps prevent bacteria and algae growth but can be slippery. The rough surface of gunite pools can cause scratches and cuts if you hit the bottom of the pool while jumping, playing, or swimming.
Are fiberglass or gunite pools more durable?
Gunite pools can incur expensive repairs as they age. They need to be drained and resurfaced every 10 to 15 years. Fiberglass pools never need resurfacing, so although they are slightly more expensive up front, you won’t have refinishing expenses down the road.
Salt water systems are very popular as they use less chemicals and don’t dry your skin out like chlorine does. But salt water will deteriorate the porous surface of a gunite pool, resulting in the need to refinish the pool closer to the 10 year mark. Fiberglass is not affected by salt water so is the better option if you want a salt water system.
Do fiberglass or gunite pools retain heat better?
Fiberglass pools heat up faster and retain heat longer. This is because the porous surface of gunite absorbs heat, taking away warmth from the water.
Are fiberglass or gunite pools easier to maintain?
Fiberglass pools are easier to clean and maintain than gunite pools. Fiberglass is a smooth, nonporous surface that resists algae. You don’t have to scrub the walls of a fiberglass pool as you would with a gunite pool. This means less time spent on cleaning and less money spent on chemicals. The walls of a gunite pool are porous which can be a breeding ground for algae and bacteria. This means gunite pools require more frequent cleaning and more expense for chemicals.
So which is better – fiberglass or gunite?
The right answer really depends on your wants and needs. A fiberglass pool was definitely the right choice for us. We knew we wanted a salt water system and a heater, both of which are best suited for fiberglass pools. Less maintenance and lower maintenance costs over the life of the pool were also factors that influenced our decision.
If you are looking for a fully custom shape, or an extra-large or extra-deep pool, then gunite is the way to go. But there was certainly no shortage of selections with fiberglass pools. In fact, we had a hard time choosing a shape as there were so many options available.
When debating between a fiberglass vs. gunite pool, make sure you’ve done your homework and know the facts before deciding which is right for you. Check out this post if you’d like to read about our pool building experience and get some advise and tips: Everything You Need to Know About Building a Pool.
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