Fiberglass vs Concrete Pools: MS Cost Comparison

Key Takeaways

• On the Mississippi Gulf Coast, a fiberglass pool typically costs $45,000 to $85,000 installed, while a comparable concrete (gunite) pool runs $60,000 to $120,000 or more once decking and finishes are included
• The fiberglass vs concrete pools Mississippi cost gap widens over time: fiberglass averages $5,000 to $15,000 in maintenance over 10 years, while concrete commonly runs $20,000 to $40,000 due to resurfacing, acid washing, and higher chemical use
• Concrete pools take 8 to 16 weeks to build on site; fiberglass shells are installed in 2 to 4 weeks because the pool arrives pre-manufactured
• For most Gulf Coast homeowners, fiberglass delivers the lowest total cost of ownership thanks to faster installation, lower chemical demand, and resistance to the region's heat, humidity, and storm conditions

Fiberglass vs Concrete Pools in Mississippi: The Cost Difference

For most Mississippi Gulf Coast homeowners, a fiberglass pool costs less to install and far less to own than a concrete pool. A fiberglass pool typically runs $45,000 to $85,000 installed, while a comparable concrete pool starts around $60,000 and frequently exceeds $100,000 once decking, coping, and finishes are added.

The upfront number is only part of the story. The fiberglass vs concrete pools Mississippi cost comparison really comes down to total cost of ownership—the price you pay over the 25-plus years you own the pool. That figure includes installation, resurfacing, chemicals, energy, and repairs. When all of those are added up, fiberglass almost always wins for a standard residential backyard.

Concrete still has a place. If you want a fully custom shape, a pool larger than 40 feet, or unusual depth and vanishing-edge features, concrete offers design flexibility that molded fiberglass cannot match. But that flexibility comes at a premium in both initial price and lifetime upkeep—a tradeoff that matters in a climate as demanding as South Mississippi's.

Upfront Installation Costs Compared

Fiberglass pools cost less to install in Mississippi primarily because the shell is manufactured in a factory and delivered ready to set. Concrete pools are built entirely on site, which requires more labor, more time, and more specialized trades—all of which drive the price up.

Here is how the two pool types compare on initial cost for a typical Gulf Coast backyard project:

• Fiberglass pool, installed: $45,000–$85,000. Includes the shell, excavation, backfill, plumbing, equipment, and a basic deck.
• Concrete (gunite) pool, installed: $60,000–$120,000+. Includes excavation, steel rebar, sprayed gunite, plaster or aggregate finish, tile, coping, and decking.

Concrete costs more upfront for several reasons. The shell is sprayed and hand-finished over days or weeks, requiring skilled crews. Concrete pools also need interior tile and a plaster, pebble, or quartz finish that fiberglass includes as a built-in gelcoat surface. Larger or more elaborate concrete designs climb quickly past six figures.

It is worth noting that the lowest bid is rarely the best value, and a suspiciously low quote often signals missing scope. Before you compare any two estimates, read our guide on pool builder red flags every MS homeowner should know so you can evaluate bids item by item rather than by bottom-line price.

Lifetime Maintenance and Operating Costs

Fiberglass pools cost dramatically less to maintain than concrete over the life of the pool, and this is where the real savings appear. Over a typical 10-year span, a fiberglass pool averages $5,000 to $15,000 in maintenance, while a concrete pool commonly runs $20,000 to $40,000.

The difference comes down to surface and chemistry:

Resurfacing. Concrete pools must be resurfaced every 8 to 15 years at a cost of $10,000 to $20,000, because the plaster interior degrades and the porous surface eventually fails. Fiberglass pools have a gelcoat surface that is not resurfaced on the same schedule—many last decades without a major refinish.

Chemical use. A concrete pool's porous, alkaline surface raises pH continuously and harbors algae in microscopic pores, so it demands more chemicals and more frequent balancing. Fiberglass is non-porous and inert, so it holds water chemistry more stably and uses noticeably fewer chemicals over a season.

Cleaning and labor. Algae cling to rough plaster, which means more brushing and acid washing on concrete. The smooth fiberglass surface resists algae and wipes clean with far less effort. For the full picture on keeping any pool balanced in our climate, see our guide to fiberglass pools in Mississippi being easy to maintain.

For a Bay St. Louis or Gulfport homeowner running a pool through long, hot Gulf Coast summers, lower chemical and energy demand adds up to hundreds of dollars saved every year—money that compounds over decades of ownership.

Ready to see real numbers for your backyard? Contact Bay Pool Company for a free, itemized quote or call us at 228.819.7219.

Installation Time and Disruption

Fiberglass pools are installed far faster than concrete, typically in 2 to 4 weeks compared to 8 to 16 weeks for concrete. Because the fiberglass shell arrives pre-manufactured, the on-site work is largely excavation, setting the shell, plumbing, and decking—a much shorter sequence.

Concrete construction is a multi-stage, weather-dependent process. Crews dig, tie steel, spray gunite, let it cure, install tile and coping, apply the interior finish, and pour decking—each step requiring inspection and dry conditions. On the Gulf Coast, frequent summer rain and high humidity routinely stretch concrete timelines well past the original estimate.

For homeowners, installation time is more than a calendar detail. A shorter build means less disruption to your yard, fewer weeks of heavy equipment and open excavation, and—critically in South Mississippi—a smaller window of exposure to summer storms and hurricane season. A fiberglass pool started in spring is often ready to swim before the Fourth of July, while a concrete project begun at the same time may not finish until late summer.

Which Pool Type Is Best for the Gulf Coast Climate?

Fiberglass is generally the best pool type for the Mississippi Gulf Coast climate. Its flexible, non-porous shell handles the region's heat, humidity, sandy soils, and high water tables better than rigid concrete, which is more prone to cracking and surface degradation under these conditions.

The Gulf Coast presents specific challenges that favor fiberglass:

• Heat and UV. Intense summer sun fades and degrades concrete plaster over time. Fiberglass gelcoat retains color and finish longer with proper care.
• Humidity and algae pressure. Warm, humid conditions accelerate algae growth. The non-porous fiberglass surface gives algae far less to grip, reducing chemical and labor demands.
• Soil movement and water tables. Sandy coastal soils and high water tables stress rigid structures. A fiberglass shell flexes slightly with ground movement, while concrete is more likely to crack and require repair.
• Storm resilience. Properly anchored fiberglass shells installed by experienced local builders hold up well through the freeze-thaw-free but storm-prone Gulf Coast seasons.

Concrete remains the right choice for owners who need a large custom geometry, competition-depth diving, or a dramatic architectural feature—and who accept the higher lifetime cost that comes with it. For a standard family backyard in Biloxi, Long Beach, or Diamondhead, fiberglass delivers the better return. A quality fiberglass pool also supports a stronger resale appraisal, a point we cover in our guide on how fiberglass pools boost home value in Mississippi.

If financing is part of your decision, our guide to financing a pool in Mississippi walks through loan options and monthly-payment scenarios for both pool types. You can also explore shapes, sizes, and features on our pools and spas page to picture what fits your yard.

Frequently Asked Questions