Installing a pool is a major investment—and naturally, homeowners want to be assured that their new pool will last for decades of enjoyment. While factors such as upkeep, climate, and installation quality all play a role, one aspect matters more than anything else when it comes to lifespan: the material your pool is made from.

Today, most inground pools fall into one of three categories:

• Gunite
• Fiberglass
• Vinyl liner

All three can provide an enjoyable backyard swimming experience—but when it comes to long-term durability and value, the differences are dramatic. Read on to learn more about how each type of pool is constructed, how long they typically last, and why gunite consistently comes out on top.

Vinyl Liner Pools: Low Cost, Short Lifespan

Vinyl pools are appealing at first glance because of their low upfront price tag. Structurally, a vinyl liner pool is essentially a framed shell installed in the ground with a large vinyl sheet holding all of the water.

While the structure of a vinyl pool can last for approximately 25 years, the liner is the weak point, as it may be prone to tears and punctures, fading and staining from chemicals or UV exposure, and stretching or wrinkling over time. Every replacement means added cost—and over the lifetime of the pool, the accumulated expense can exceed the savings of choosing vinyl in the first place.

Another downside to vinyl pools is their design limitations—most are based on pre-manufactured shapes. Custom options are possible, but they can become costly, making them less practical compared to other pool types.

Fiberglass Pools: Durable, but Not Designed to Last Forever

Fiberglass pools are built offsite as a single pre-shaped shell, transported to the home, and dropped into excavated space—much like placing a large bathtub in the ground. With an average lifespan of around 20-25 years, fiberglass is more durable than vinyl and doesn’t require liner replacement, but it still has long-term limitations. Over time, issues can arise, such as cracking of the shell and fading or blistering of the surface gel coat. It can also be difficult to repair structural damage once the surface begins to break down.

Like vinyl, fiberglass pools are limited to available premanufactured molds. If you want multiple levels, sweeping curves, fountains, or integrated spas, customization can be difficult to achieve.

Gunite Pools: Built to Last a Lifetime

Gunite pools are the gold standard for long-lasting construction and unlimited customization. Unlike fiberglass or vinyl, gunite pools are built onsite, starting with a steel rebar framework that’s sprayed with a high-strength mixture of cement, sand, and aggregate.

With proper care, gunite pools can last for 100 years or more. Rather than depending on a manufactured liner or shell, they are engineered as permanent structures with exceptional:

• Tensile strength – allowing the pool to flex with shifting soil
• Compressive strength – supporting large volumes of water without warping
• Longevity – designed to last for generations, not just decades

This strength is particularly valuable in climates with freeze–thaw cycles, like New England. Unlike fiberglass or vinyl, gunite is far less susceptible to cracking as the ground expands and contracts in winter.

Another advantage of gunite is its limitless design capability. Because gunite is shaped onsite, homeowners can enjoy virtually any design, including:

• Infinity edges
• Freeform shapes
• Integrated spas
• Tanning ledges
• Waterfalls and rock features
• Custom lighting and automation

This makes gunite the material of choice for high-end homes, luxury resorts, and properties where both beauty and longevity matter.

Cost vs. Lifespan: Which Pool Offers the Best Value?

While gunite is typically more expensive upfront, its lifespan is dramatically longer. A well-built gunite pool, resurfaced every couple of decades, can easily last a century or more—making it the best long-term value by far.

Building Pools that Last for Generations

At Aqua Pool & Patio, we have spent more than 50 consecutive years designing and constructing custom gunite pools that stand the test of time. Our pools are engineered for durability, beauty, and complete personalization, whether you’re looking for a resort-style retreat or a timeless backyard classic.

If you’re ready to explore pool options that will enhance your property for decades to come, our team is here to guide you. Call us today at (860) 623-9886 to schedule a consultation and begin planning the last pool you’ll ever need to build!