How Long Do Swimming Pools Last? Learn About Average Life Span

Pools are a hefty investment, so knowing how long swimming pools last should be an important factor when choosing to build one. Some pools can last your lifetime, but the average pool lasts 15 years or less, depending on its type.

How Long Do Swimming Pools Last?

A pool’s life expectancy depends on whether it is installed in or above ground. It also depends on the type of pool you have, such as concrete or fiberglass. Here is how long different types of swimming pools last, on average. 

In-Ground Pools 

In-ground pools can last anywhere from 15 to 50 years, and some can last a lifetime, depending on the type you have. Each one requires regular maintenance in different intervals to ensure it lasts as long as intended. Here is what to expect.

1. Vinyl Lined In-Ground Pools 

Vinyl-lined in-ground pools are the least expensive of the in-ground pool options, but they last the shortest amount of time. Overall, most vinyl-lined in-ground pools last eight to 15 years; however, the pool liner life expectancy is short and requires frequent replacement. In a best-case scenario, the vinyl liner will last six years with light use. Sun exposure, heavy use, and chemicals all wear down vinyl liners. Frequent replacement ensures the in-ground pool will last longer. 

2. Concrete In-Ground Pools 

Concrete in-ground pools last the longest, usually 50 or more years, but some last as long as the homeowner’s lifetime. Concrete pools can be poured or made of shotcrete, which is concrete shot out of a gun onto steel-reinforced walls.

Here is the kicker: The pool’s finish will not last as long as the concrete and will require resurfacing. Most concrete pools last 10 to 15 years before they must be resurfaced. You will typically notice discoloration, peeling, or cracks in the pool, decreasing its aesthetic appeal and the pool’s integrity. Concrete pools are often resurfaced with plaster, quartz, exposed pebble, or glass bead. The largest concern with concrete pools is that a crack in the concrete, if not handled properly, could render your pool ineffective.

3. Gunite In-Ground Pools 

Gunite in-ground pools are made from a type of concrete, but instead of pouring or “shooting” the wet concrete, it is sprayed on in layers using a perfect ratio of water to dry-particle aggregate and cement. This installation technique allows gunite pools to last 30 or more years, depending on the manufacturer.

4. Fiberglass In-Ground Pools 

The fiberglass pool life span is 30 or more years, but it is the most expensive option. Unlike concrete or vinyl-lined pools, however, fiberglass pools have one major benefit. They require very little maintenance. Fiberglass pools do not have a replaceable liner, and there is little risk of algae growth because you can simply wipe the pool down, making it the easiest to care for, but the costliest to install. 

How Long Do Above-Ground Pools Last?

If you do not have the budget for an in-ground pool, you may consider an above-ground option. The life span of an above-ground pool is not as long as in-ground because it is subjected to more weather elements. On average, the shell lasts 10 to 20 years, but like in-ground pools, the liners require frequent replacement, usually every six years or less. 

Signs It Is Time to Replace Your Swimming Pool 

The best way to determine if you should replace a swimming pool is to contact a pool company near you and ask a professional to inspect yours. Of course, there are warning signs you should look for that signify a possible need for pool replacement. 

• Excessive repairs: If you constantly need to repair your pool, or if the repairs you make do not last long, that could be a sign that it is time for pool replacement.

• Pool does not stay clean: If, no matter how much regular maintenance you give your pool, the water does not stay clean, it may be time for a pool replacement. Chemicals are dangerous when used in excess and should not be the answer to keeping your pool water clean.

• Pool does not hold water: If you constantly have to refill the pool with water beyond the normal amount to compensate for evaporation or use, it could be a sign that the pool has a leak. This can damage the integrity of the exterior and the pipes. If you catch it quickly enough, you may be able to fix the leak, but more often than not, it requires pool replacement.

• Lost its aesthetic appeal: If your pool makes your backyard look worn down and in need of work, it may be time for a new pool. Broken decks, damaged shells, and less-than-optimal liners can make a pool look dirty and broken, reducing its aesthetic appeal and potentially your home's value. 

Factors That Influence How Long Swimming Pools Last

Like any product you purchase, certain factors affect a pool's life span. Fortunately, you can control them. 

Quality of the Manufacturer 

You can purchase any of the above pool types from many different manufacturers. Some provide high-quality products, while others produce lower-quality pools. The key is to do your due diligence by reading reviews and understanding the types of products each manufacturer offers. Stay within your price range, but know which manufacturer offers the highest quality pools based on what you can afford. 

Usage 

How often you use the pool will determine its longevity. The more frequent use it gets, the faster it will deteriorate—but that is the point of a pool, right? With regular use comes the need for ongoing maintenance. If you keep up with the pool and purchase one that can withstand the amount of use you expect, you can get the standard amount of time out of it.

Weather 

If you live in an area with excessive sunlight exposure or harsh winters, it can cause damage to your pool sooner than it might in other areas. Excessive sunlight can cause chlorine to break down in as little as two hours, providing less protection for the water and increasing the risk of damage from algae and bacteria growth. 

Maintenance 

How well you care for your pool plays an extensive role in its longevity. Some pools may last longer than their intended life span with meticulous care, whereas ignored pools can look old and worn well before they are meant to expire.

How to Lengthen the Life of Your Pool 

To ensure your pool lasts as long as intended, based on manufacturer warranties and product descriptions, consider the following: 

• Choose a reputable manufacturer that sells pools that last.

• Hire professional pool installers to ensure proper installation.

• Understand the regular maintenance that your pool requires.

• Keep the water clean with regular skimming, even when the pool is not in use.

• Ensure proper water chemistry, based on the manufacturer’s instructions.

• Have the pool regularly inspected by professionals. 

Repairing vs. Replacing Your Pool 

The average pool repair cost is $677, but this can range from $239 to $1,127. Compared to the average cost of a new pool, which is $36,000, repair always sounds like the answer. But replacement may be best when a pool is beyond its expected life span or when repairs do not last. It is worth paying the pool inspection cost to get a professional’s opinion.