If you’re in the process of installing a pool, you’ve likely come across two different materials—fiberglass and gunite. These materials make up the majority of modern pools and, although they both have their benefits and drawbacks, they make wonderful additions to any landscape design. Before deciding on one over the other, though, take moment to learn the differences between these two types of pools.
When deciding between fiberglass and gunite, it’s important to consider your style and your needs. If you want a custom-shaped pool, gunite is the way to go. Gunite allows you to build a very large pool (bigger than 16 feet across and 45 feet long) or a custom contour around any natural barriers. If you’re looking for an easy-to-maintain pool that’s literally bulletproof, a little less expensive, and doesn’t require much annual upkeep, fiberglass is the better option.
An in-ground pool is a major investment. This guide will help you understand the main differences between fiberglass and gunite, describe some of the pros and cons for each material, dive into price points, and give a general overview of how the two types of pools are installed. From there, you should be able to make an informed decision.
What is a Fiberglass Pool?
Fiberglass is a type of composite material that’s made from glass fibers that are bonded together with a resin. It’s a popular material for pools because it’s strong, non-porous, and doesn’t require much upkeep. Fiberglass pools are manufactured in a mold, which means they can be made in just about any shape or size.
The pool is then brought to your home and installed in your backyard as a single piece. This makes them far easier to install than other options.
Fiberglass Pool advantages vs gunite:
- Faster install time.
- Lower cost to install.
- 25 year warranty.
- Lower cost of annual maintenance. Because the surface is non-porous, algae won’t stick to the walls in a fiberglass pool.
- Fewer chemicals. Fiberglass requires less chemicals than gunite.
However, fiberglass does have its downsides. Because the pool is shipped on a truck and delivered in one piece, you are limited to certain sizes. Although customization is available, the size can never exceed 16 ft wide and 48 ft long.
Nevertheless, if you’re looking for a more affordable option that is lower maintenance than a gunite or concrete pool that can be built off-site and then quickly installed, you’d be better off investing in a fiberglass pool.
What is Gunite?
Gunite is a type of concrete that’s made from a mixture of sand, water, and cement. It’s a popular material for pools because it’s strong, durable, and highly customizable. Gunite pools are built on-site, which means they can be made in any shape or size.
The gunite is mixed and then sprayed onto a previously installed metal frame. Once the gunite has dried, it’s then plastered with a smooth finish. This makes gunite pools more expensive and time-consuming to install than fiberglass pools but gunite does have its advantages.
Gunite advantages vs Fiberglass:
- Custom shapes and sizes. Unlike a fiberglass pool, you can literally build almost any shape and size.
- Custom finishes. Gunite plaster comes in a wider range of colors than a fiberglass pool.
Disadvantages of gunite vs fiberglass:
- Higher cost. Gunite pols are usually 5-10% more than fiberglass per square foot.
- More maintenance. Gunite pools need to be resurfaced. Depending on the construction finish, this can be every other year or every 7 years.
- Longer installation time.
Comparing Price Points
In terms of initial cost, gunite is more expensive than fiberglass. A gunite pool will typically cost between $95,000 and $150,000, depending on size, whereas a fiberglass pool will only cost between $80,000 and $120,000. And, when it comes to long-term costs, gunite is also typically more expensive than fiberglass.
Because gunite is more porous than fiberglass, these pools require more cleaning and maintenance over time. On average, this can cost as much as $2,700 a year or $27,000 over a ten-year period. On the other hand, many fiberglass pool owners spend as little as $4,000 on pool maintenance over the same ten-year period.
How are They Installed?
Fiberglass pools can be installed in a single week, as long as the foundation is complete, whereas gunite pools can take up to two weeks to install. Fiberglass pools are delivered to your home in one large piece and the piece is then placed into a hole that’s been dug in your backyard and the pool is filled with water.
Gunite pools are built on-site, which means they take longer to install. First, a hole is dug in your backyard and a metal frame is installed. Once the frame is in place, the gunite is mixed and sprayed onto the frame. Once the gunite has dried, it’s then plastered with a smooth finish. The pool is then filled with water and the chemicals are added.
So, Which is Better?
Both fiberglass and gunite have their pros and cons but, ultimately, the best material depends on your budget and your needs. If you want a pool that’s less expensive and easier to install, fiberglass is the way to go. If you want a pool that’s durable and customizable, gunite is the better investment. No matter which material you choose, you’re sure to enjoy your pool for years to come.
