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How Much Does a Fiberglass Pool Cost in Missouri?
Planning for a backyard pool in the Show-Me State? If you’re beginning to compare options, understanding the factors influencing fiberglass pool cost in Missouri is essential. From the vibrant metro areas of St. Louis and Kansas City to the scenic landscapes of the Ozarks and rolling farmland in between, each Missouri property presents unique opportunities—and potential challenges—for fiberglass pool installation. Soil conditions, yard access, municipality-specific regulations, and your must-have features can all shape the overall cost of your project. Whether you dream of peaceful evenings in Columbia or family splash sessions in Springfield, thoughtful planning will help bring your perfect Missouri pool to life.
What’s the Average Installed Cost of Fiberglass Pools in Missouri by Size? Survey Says…
To give Missouri homeowners a clearer picture of what to expect, Thursday Pools conducted a detailed 2025 survey of our independent dealers across the state. The goal? To gather real-world insights into what people are actually paying to install fiberglass pools in Missouri backyards.
AVERAGE MISSOURI FIBERGLASS POOL INSTALLATION BY SIZE |
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|---|---|---|---|
| Pool Type | Small Fiberglass Pools | Medium Fiberglass Pools | Large Fiberglass Pools |
| Size Range | Up to 26 ft Long or 400 ft² | 26 to 34 ft Long or 400 to 600 ft² | 35 ft and Longer or 600+ ft² |
| Average Cost | $60,000 | $80,000 | $106,667 |
Keep in mind that fiberglass pool costs will vary based on the size of pool you want and where in Missouri you live. You can always contact a Thursday Pools dealer near you to get a personalized quote and explore financing options for your fiberglass pool project.
Average Cost of Popular Pool Models Installed in Missouri
GOLIATH (12’ x 25’)
The Goliath model lives up to its bold name, especially in its largest size, but you don’t need a sprawling backyard to enjoy everything it offers. The most compact versions of the Goliath fit beautifully into tighter spaces often found in Missouri’s suburban neighborhoods and city lots. The 25-foot-long model includes thoughtfully integrated entry steps and bench seating wrapped around a clear, open swim lane that’s perfect for play and exercise.
Based on our 2025 dealer survey across Missouri, the average cost for a standard installation of a Goliath or similar design measuring under 26 feet in length and under 400 square feet comes in around $60,000.
LIL BOB (13.5’ x 27.5’)
Lil Bob is a medium-sized fiberglass pool with a clever, compact layout that combines space for fitness, relaxation, and fun. Lil Bob’s flat-bottom depth makes it ideal for water games, aquatic workouts, and lap swimming. Wide entry steps double as casual seating, and an integrated bench area gives everyone a spot to relax and unwind. Whether you’re hosting weekend gatherings in suburban St. Charles or looking for a tranquil exercise pool in the Ozarks, Lil Bob adapts to your lifestyle.
According to our 2025 survey of Thursday Pools independent dealers in Missouri, the average cost of a standard installation of a Lil Bob—or other medium-sized fiberglass pool designs between 26 and 34 feet long or 400 to 600 square feet—is approximately $80,000.
WELLSPRING (16’ x 40’)
The curvy, freeform Wellspring fiberglass pool is your big backyard’s ultimate hangout for good times. The spacious design features an 8-foot diameter sun shelf, perfect for lounging or accommodating two ledge loungers. Adjacent to the sun shelf is a wrap-around bench, providing swimmers with a convenient spot to rest or socialize. The expanded entry steps ensure easy access, while the deep-end bench offers a quiet conversation area.
Ideal for expansive properties, the Wellspring provides ample space for swimming, lounging, and entertaining. According to our 2025 survey of independent Thursday Pools dealers in Missouri, the average cost for a standard installation of the Wellspring or similar large fiberglass pools over 35 feet long or exceeding 600 square feet is approximately $106,667.
How Will Your Yard Shape Your Missouri Fiberglass Pool?
Missouri’s diverse geography—from the rocky Ozark hills to the dense clay soils of central farmland—means no two backyards are precisely alike. Your yard’s natural characteristics can directly impact the cost and complexity of your fiberglass pool installation. For instance, rocky terrain in Southern Missouri may require specialized excavation tools, and heavy clay soil in areas like Columbia and Jefferson City can demand extra labor to ensure proper site preparation. In contrast, loamy or sandy soil in parts of Southeastern Missouri may need reinforcement to keep the pool stable over time.
Elevation changes are another factor to consider. Many properties in the Show-Me State feature sloped yards, especially in regions near rivers and bluffs. These slopes may require grading or even retaining walls to create a safe, level foundation for your pool and patio.
Limited backyard access could pose challenges if you live in a more urban or densely populated suburb, like those around St. Louis or Kansas City. Narrow alleys, fencing, or nearby structures might require a crane or custom equipment to deliver and install your one-piece fiberglass pool shell safely.
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AVERAGE ADDITIONAL YARD-RELATED EXPENSES IN MISSOURI |
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| Excavating Sandy Soil | $1,867 |
| Excavating Clay Soil | $1,767 |
| Excavating Rocky Soil | $3,633 |
| Above-Average Slope Requiring Extra Grading | $5,000 |
| Limited Yard Access | $2,867 |
An experienced local independent Thursday Pools dealer will help you understand how your yard’s layout, soil, and accessibility affect your overall pool project. With the proper preparation, you’ll set the stage for a smooth installation and long-term enjoyment.
Navigating Local Regulations: Safety, Permits & Peace of Mind
Safety and security are top priorities with backyard pools, and understanding your local codes, laws, and pool barrier regulations is a prerequisite for construction. While Missouri doesn’t have a single statewide residential pool code, homeowners must follow applicable local building codes and zoning ordinances—many of which reflect national standards for preventing accidents and unauthorized access.
In general, Kansas City, St. Louis, and most Missouri municipalities require enclosing residential pools with a fence or barrier at least 48 inches tall and with gates that are self-closing, self-latching, and at a height inaccessible to small children. Non-compliance leaves homeowners legally liable in case of an injury and susceptible to fines or other action. Additional setback and permitting requirements may also apply, and some counties or neighborhood homeowners associations can have stricter rules than others.
In Springfield, for example, local ordinances require surrounding any pool deeper than 18 inches with a fence or wall at least 6 feet high with a self-closing and self-latching gate at least 45 inches above ground level.
Because pool safety requirements, permits, and fencing guidelines vary by city, county, and neighborhood, you must consult your local municipality and HOA for the most up-to-date codes and regulations before beginning your project. A trusted local, independent Thursday Pools dealer can help handle your area’s permit landscape and ensure your plans comply with all local laws.
For budgeting purposes, our Missouri dealers estimate the average cost for a 300-linear-foot pool fence is $6,133.
Pool Features That Shape Fiberglass Pool Cost in Missouri
Optional features and upgrades can elevate your pool, giving you more ways to relax, entertain, and enjoy the best of Missouri’s warm-weather months. While not required, these enhancements can dramatically improve comfort, convenience, and aesthetics, and our 2025 survey gives insight into average local pricing.
Comfort, Safety, and Convenience Features
Pool Heater Average Cost in Missouri: $7,067
Keep your pool water warm well into the cooler evenings and extend the swimming season from early spring well into the fall.
UV Filter System Average Cost in Missouri: $3,200
Cut down on chlorine use and keep your pool water sparkling by targeting bacteria and algae with ultraviolet technology.
Pool Automation and Smart Control System Average Cost in Missouri: $4,633
Take full control of your pool’s temperature, lights, and filtration right from your smartphone—poolside or on the go.
Automatic Pool Cover Average Cost in Missouri: $12,900
Increase safety and cleanliness with a motorized cover that closes at the push of a button, helping retain heat and reduce debris.
Non-Automatic Safety Pool Cover Average Cost in Missouri: $4,067
A reliable manual option for securing your pool when it’s not in use—especially helpful during off-season months.
Automatic Pool Cleaning and Vacuuming System – $2,800
Let your pool clean itself so you can spend less time skimming and more time swimming.
Decking and Landscape Enhancements
Poured-Concrete Patio (Approx. 1,200 sq. ft.) Average Cost in Missouri: $11,000
Concrete offers a practical, long-lasting pool deck surface that creates an 8-foot-wide area around most pools and stands up well to Missouri’s seasonal climate shifts.
Paver Patio (Approx. 1,200 sq. ft.) Average Cost in Missouri: $6,200
Choose from budget-friendly concrete pavers or premium materials like travertine to build a stylish, slip-resistant deck. Brick and concrete pavers tend to hold up best through Missouri’s freeze-thaw cycles.
Surrounding Landscaping Average Cost in Missouri: $3,700
Frame your pool with native plants, flower beds, decorative rocks, and shade trees to complement Missouri’s natural beauty and add privacy.
Aesthetic, Water Feature, and Spa Options
Specialty Waterline Tile Average Cost in Missouri: $4,233
Add a polished finish to your pool’s perimeter with custom waterline tile in your choice of color or texture.
LED Pool Lights Average Cost in Missouri $3,052 per light
Create a nighttime ambiance with multicolor or white LED lights that improve safety and extend your swim hours.
Deck Jets Average Cost in Missouri: $2,533 per jet
Elegant streams of water arc from the deck into the pool, bringing motion, sound, and a touch of luxury.
Bubbler Average Cost in Missouri: $2,433 per bubbler
These mini fountains on beach entries or tanning ledges add gentle movement and are a favorite for both kids and adults.
Cascading Waterfall Average Cost in Missouri: $4,467
Bring the relaxing sound of flowing water to your backyard with a custom waterfall feature that feels straight out of a resort.
Add-On Spa Average Cost in Missouri: $12,367
Soak, relax, and enjoy hydrotherapy year-round with a seamlessly integrated spa alongside your fiberglass pool with a luxurious spillover effect.
Additional Recreational Features (Safety Considerations Apply)
Simple Pool Slide* Average Cost in Missouri: $5,267
Simple slides offer a classic, straightforward design.
Deluxe Pool Slide* Average Cost in Missouri: $6,667
Taller, curvier slides can add a resort-like feel.
Diving Board (Type 1 Diving Pools Only) Average Cost in Missouri: $2,667
Diving boards are only permitted on certified Type 1 diving pools. If installed, they should always meet proper depth and slope requirements for safe use.
*Thursday Pools strongly advises against pool slides and diving boards due to safety concerns. The inclusion of a diving board or slide with any fiberglass pool must be carefully reviewed by a licensed professional to ensure compliance with all local building codes, safety regulations, and manufacturer guidelines. Not all fiberglass pool models are suitable for diving or slide use. It is the responsibility of the homeowner and installer to ensure proper installation and usage. Always prioritize safety and consult a qualified expert before adding any diving or sliding feature to your pool.
Take the Next Step: Build Your Budget and Meet a Missouri Pool Pro
Adding a fiberglass pool to your Missouri home isn’t just about beating the heat—it’s about transforming your backyard into a space that reflects your lifestyle and gives your family a place to unwind, play, and connect. Whether you’re nestled in the suburbs of St. Louis or Kansas City, enjoying lake views in the Ozarks, or making the most of wide-open rural land, the right pool design and features at the right price can turn your outdoor area into a personal oasis.
Because every property is different, the smartest way to understand your project’s potential cost is by speaking with a local independent Thursday Pools dealer. They’ll assess your yard’s layout, soil, slope, and accessibility, walk you through local code requirements, and guide you in selecting a pool design that aligns with your vision and your budget.
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Thursday Pools® manufactures fiberglass pool shells and does not install pools. Pools are installed by locally owned independent dealers. Consumers should consult a local independent dealer for the most accurate and updated information based on the unique conditions of their region and property.