Everything You Need to Know About Fiberglass Pools

What is a Fiberglass Pool?

A fiberglass pool is a one-piece, pre-engineered pool shell made from layers of fiberglass reinforced with thermoplastic polymer resins. Fiberglass, known for its strength, durability, and sleek finish, has been a trusted material for over 50 years in boating and automotive manufacturing industries.

Fiberglass begins as thin, hair-like fibers created by heating glass until it becomes molten and then is forced through superfine holes. These threads are woven into larger swatches and combined with resins to form a composite material that is lightweight yet stronger than many metals by weight. This advanced manufacturing process gives fiberglass pools superior durability and makes them resistant to cracking, fading, and algae growth—significantly reducing maintenance needs over time.

Fiberglass pools’ smooth surface is gentle on swimmers, pets, and pool toys, while their lightweight design allows for quick installation, typically in just two to four weeks. With built-in luxury features like tanning ledges, seating, and even beach entries, fiberglass pools seamlessly combine style, functionality, and practicality.

Thursday Pools crafts its fiberglass pools using a multi-layered construction method designed for long-lasting quality, including:

• Gelcoat Surface: The pool’s top layer is a smooth, non-porous gelcoat that resists algae growth, scratches, and fading while providing a luxurious finish. It’s tough enough to withstand a dog’s claws yet comfortable for swimmers.

• Vinyl Ester Resin Barrier Coat: Beneath the gelcoat, this layer enhances the pool’s longevity by protecting against moisture and chemical degradation. It also prevents potential blistering for a flawless finish.

• Chopped and Hand-Laid Fiberglass: Layers of fiberglass, combined with isophthalic polyester resin, are applied using both automated equipment and hand-laying techniques. This process ensures maximum strength and durability in high-stress areas.

• Custom Stitch Mats: Hand-laid stitch mats add structural integrity, helping to reinforce the pool shell and resist impact. These mats hold the fibers in place, ensuring long-term stability.

• Honeycomb Core Reinforcement: For added support, horizontal surfaces like steps, benches, and tanning ledges feature a honeycomb core structure. Vertical strips along the pool walls provide further reinforcement, maintaining the pool’s shape and strength over time.

Through years of testing and finite element analysis (FEA), Thursday Pools has fine-tuned the balance of these layers to create fiberglass pools that are both beautiful and built to last. This meticulous engineering ensures that every shell delivers top-tier quality, reliability, and style.

The True Cost of Pool Ownership: Balancing Luxury and Affordability for Long-Term Value

Investing in an inground pool is an exciting step toward creating your ideal backyard, and it’s wise to approach the investment with a sound financial strategy. Balancing luxury and affordability begins with understanding how to budget for your fiberglass pool while prioritizing the features that matter most to you. Thoughtful planning and collaboration with your pool dealer help you design a beautiful, functional space without overspending.

Budgeting Tips: Prioritizing Features and Managing Costs

Begin by identifying your must-have pool features versus the luxury upgrades that can wait. Essential components like the pool shell, basic decking, and fencing (or safety cover) should be your top priority.

You can add higher-end features like expansive landscaping or a luxury pergola as your budget allows later. Many homeowners complete their pool installation in phases: install the pool now, then enhance the space over time with upgrades like water and fire features, outdoor kitchens, and high-end decking.

Another smart way to manage costs is by exploring financing options. Many pool dealers offer flexible financing plans tailored to fit different budgets, allowing you to break down the upfront costs into manageable payments. Options like home improvement loans or home equity lines of credit (HELOCs) can help you start enjoying your pool sooner without dipping into your bank accounts.

The Long-Term Value of Fiberglass Pools: Comparing Fiberglass, Vinyl Liner, and Concrete Pools

Fiberglass pools are valued for their speed of installation and ease of maintenance. Delivered as a pre-fabricated shell, they are installed quickly with minimal construction delays. The smooth, non-porous gelcoat surface prevents algae buildup and reduces chemical needs, making fiberglass pools a practical and stylish choice for homeowners seeking low-maintenance solutions.

• Installation Time: 2–4 weeks.
• Customization: Limited to pre-designed shapes and sizes.
• Maintenance: Widely accepted as lower maintenance than other pool types.
• Longevity: Can last 50+ years with proper care.
• Unique Features: Built-in tanning ledges, seating, and beach entries.

Fiberglass pools are perfect for homeowners looking for a modern, durable, lower-maintenance pool option.

Vinyl liner pools are often the most affordable option upfront. They are built on-site with a steel or polymer frame lined with a custom vinyl sheet. While the liners come in various patterns and designs, they are prone to tears, punctures, and fading, leading to periodic replacements and higher long-term costs.

• Installation Time: 4–8 weeks, depending on weather.
• Customization: Moderate; limited by the liner’s durability.
• Maintenance: Higher than fiberglass due to liner replacements and cleaning needs.
• Longevity: Liners need replacing every 5–15 years.
• Unique Features: Affordable initial costs; customizable liner designs.

Vinyl liner pools appeal to budget-conscious buyers but come with increased maintenance costs over time.

Concrete pools are highly customizable and can be designed in virtually any shape, size, or depth. This flexibility makes them a top choice for homeowners seeking unique or extra-large pools. However, concrete’s porous surface fosters algae growth, requires frequent brushing, and demands periodic resurfacing to maintain its appearance and functionality.

• Installation Time: 3–6 months or longer for complex designs.
• Customization: Unlimited in size, shape, and features.
• Maintenance: High, including regular cleaning and resurfacing every 10–15 years.
• Longevity: Decades with proper care but requires consistent upkeep.
• Unique Features: Fully customizable for one-of-a-kind designs.

Concrete pools are ideal for homeowners who prioritize complete customization and don’t mind significant time and financial investment.

Which Pool Type is Best for You?

• Fiberglass Pools: Best for quick installation, minimal maintenance, and built-in luxury features.
• Vinyl Liner Pools: Ideal for budget-conscious buyers seeking moderate customization but willing to manage higher maintenance and lifetime costs.
• Concrete Pools: Perfect for those prioritizing artistic freedom and large-scale designs with higher upfront and lifetime costs.

3 Tips to Planning a Smooth Fiberglass Pool Installation

With proper planning and an eye to the future, your fiberglass pool installation can lay the foundation for a complete outdoor living area that grows with your family and lifestyle. By thinking ahead, making smart design decisions, and taking steps to protect the rest of your property during construction, you can enjoy a smoother installation process and a backyard that’s ready for future upgrades when the time comes.

1. Simplify Installation and Plan Today for Tomorrow’s Upgrades

Picking a fiberglass pool shell that complements your yard size speeds permit approvals and installation. An oversized pool may require additional permits, excavation work, or specialty equipment. Beginning with basic decking at first, with the potential to upgrade later, is another way to keep the project on schedule and under budget. 

Before installers break ground, consider how you will use the outdoor space around your pool. What might you want your backyard to look like a few years from now? Planning for future features can impact your installation experience and save you time, money, and stress later.

Future Deck Expansion: Will you eventually want to upgrade or expand your pool deck with premium materials like natural stone or decorative pavers? By planning for deck additions now, your installer can account for factors like proper grading, foundation support, or anchoring points, making future updates seamless and preventing the need for disruptive reconstruction later.

Outdoor Lighting: If you envision your pool area glowing into the night, ask your installer to pre-wire conduits for outdoor lighting features like path lights, pool spotlights, or string lights. Incorporating this step during installation prevents the hassle of digging into completed landscaping or pool decking later, saving both time and money while ensuring your backyard vision comes to life effortlessly.

Water Features and Add-Ons: Even if you aren’t including a pool waterfall, fountain, deck jets, or a nearby spa right now, preparing plumbing connections during the initial installation ensures you can add these features later without needing major excavation. This forward-thinking approach reduces future costs and prevents unnecessary disruption to your pool area.

Outdoor Kitchen or Entertainment Space: Are you dreaming of a backyard kitchen, event space, or fire pit lounge? Planning utility access for gas, water, and electricity during pool installation avoids costly re-digging or rerouting later. With this foresight, you can future-proof your outdoor living space, making it easy to enhance your backyard oasis over time.

2. Plan for Disruption to Your Normal Property Use During Construction

Pool installation involves heavy machinery and construction crews, but careful planning can help minimize the impact on your daily life and property. While your installer will likely already have a plan, you should also prepare for disruptions. Here are some key considerations to keep them manageable:

• Plan Access Routes: Check which paths the installer will use for construction equipment to enter and exit your yard. If the route cannot avoid favorite landscaping, you may want to temporarily transplant what you can ahead of time.

• Protect Surrounding Areas: Plan to cover driveways, patios, and walkways with protective mats or plywood to shield them from heavy equipment and potential damage. This extra precaution can save you costly repairs later.

• Move Outdoor Items: Remove grills, furniture, planters, and other outdoor décor from the construction zone to ensure they don’t get damaged during the installation process.

• Coordinate with Neighbors: If equipment or construction activities might impact neighboring properties, give them a heads-up about the project timeline. Open communication helps maintain good relationships and avoids surprises.

• Plan for Limited Yard Access: Be prepared for parts of your property to be off-limits during construction. If you have children or pets, consider creating temporary play or exercise spaces elsewhere to keep them safe and entertained.

• Anticipate Noise and Activity: Construction can be noisy, with crews working for extended hours. If possible, plan work or quiet activities indoors to minimize disruptions.

Once your pool is installed, you may need to invest some time and effort into restoring your property. Expect some wear and tear on your lawn or landscaping from heavy machinery and foot traffic. Budget for post-installation tasks such as reseeding grass, repairing irrigation systems, or replacing plants and shrubs. Proper restoration will ensure your backyard looks as stunning as your new pool.

3. Focus on the First Splash

Watching your backyard transform from grass and dirt to a sparkling and luxurious pool is an emotional journey. The excitement of design meetings turns into anticipation as construction begins, and that first glimpse of your fiberglass pool shell lowering into place is unforgettable and exciting.

While the noise and activity may sometimes feel disruptive, each stage brings you closer to creating the backyard you’ve been dreaming of. And when the dust clears and the water settles, the reward is worth it. You’ll be able to gather with family, entertain friends, and relax in your own private escape.

That first splash is more than just a moment—it’s the culmination of your vision and planning. Whether it’s your kids laughing as they wade into the shallow end, a peaceful evening swim under the stars, or hosting your first poolside barbecue, your new pool becomes the heart of your outdoor lifestyle. The memories you’ll create from day one will make every step of the journey feel worthwhile.

Effortless Enjoyment: Simplifying Fiberglass Pool Maintenance for a Lifetime of Fun

Owning a fiberglass pool is about peaceful relaxation, endless fun, and a lifetime of enjoyment and connection with family and friends. And one of the best perks of ownership? Fiberglass pool maintenance is lower than other pool types, giving you more time to enjoy the water. However, lower maintenance does not mean no maintenance. Committing to regular pool care keeps your pool pristine for decades while minimizing costs and effort.

Designing for Lower-Maintenance

Fiberglass pools are naturally lower-maintenance. By now, you know the smooth, non-porous gelcoat surface prevents algae buildup and resists staining, eliminating the need for harsh scrubbing or frequent chemical treatments with a fiberglass pool. But did you know some design choices can make maintenance even easier?

• Automated Chemical Monitoring and Dispensing: Smart pool systems can monitor water chemistry in real time and automatically adjust pH and chlorine levels as needed. These systems remove the guesswork and manual testing, ensuring your pool stays balanced with less effort. It is important to note that they still require you to ensure the units are working properly. A manual check and comparison should be completed at least once every week.

• Robotic Pool Cleaners with Smart Navigation: Modern robotic cleaners equipped with advanced navigation systems can autonomously clean your fiberglass pool’s walls, floor, and waterline. These devices are energy-efficient and easy to use, saving time while keeping your pool spotless.

• UV and Ozone Sanitizers: UV and ozone sanitizing systems are cutting-edge tools that reduce reliance on chlorine by neutralizing bacteria and algae through ultraviolet light or ozone gas. These systems enhance water quality and minimize chemical use, providing crystal-clear water with less upkeep.

• Self-Cleaning Pool Systems: Some fiberglass pools can be outfitted with integrated self-cleaning systems that use strategically placed jets to circulate water and sweep dirt toward the pool’s drain. These systems keep your pool clear of debris without requiring manual vacuuming or skimming.

Proactive and Preventive Maintenance for Long-Term Savings

Routine care is essential to protect your investment. A few small, regular tasks can prevent more extensive problems and costly repairs.

• Skim the Surface: Remove leaves and debris to keep your water clean.
• Empty the Skimmer Basket: Prevent clogs and keep the filtration system running smoothly.
• Test and Balance Water Chemistry: Check pH and alkalinity levels and balance the pool’s LSI to protect the pool surface and keep swimmers safe.
• Brush the Waterline: A quick swipe with a soft cloth keeps the gelcoat clean and buildup-free.
• Inspect Essential Equipment: Check all pump, filter, and heater equipment to ensure proper operation and prepare for seasonal changes.

Preventative care is the best way to protect your pool—and your fun. Neglecting essential maintenance can lead to staining, discoloration, and other damage to the pool’s surface or structure. However, when you stay ahead of routine maintenance tasks, your fiberglass pool will look stunning and perform beautifully for decades.

Partnering with local pool professionals for seasonal maintenance, such as opening and closing your pool, can help ensure proper care. Many homeowners find that blending DIY care with occasional professional support creates the perfect maintenance balance.

Engineered to Endure: The Strength and Everyday Resilience of Fiberglass Pools

When it comes to durability, not all pools are equal. Fiberglass pools stand out for their long-term strength without the inevitable repairs and replacements.

Strength Through Flexibility

One of the most overlooked aspects of fiberglass pools is their flexibility. Unlike rigid concrete, fiberglass has a natural elasticity that allows it to adapt to ground movement without cracking. This flexibility is especially beneficial in areas with freeze-thaw cycles or shifting soil conditions. Rather than requiring costly repairs or resurfacing, fiberglass pools maintain their structural integrity even when the ground beneath them shifts.

Engineered for Longevity

Fiberglass pools are not just built; they are engineered for long-term performance. Manufacturers like Thursday Pools use advanced techniques to test and optimize the strength of each pool shell. They ensure that high-stress areas—such as corners, steps, and tanning ledges—are reinforced with the appropriate fiberglass layers and additional support structures. This meticulous engineering reduces the likelihood of weak points or structural failures over time.

Resistance to Corrosion and Moisture Damage

A key advantage of fiberglass is its inherent corrosion resistance. Unlike metal-reinforced concrete pools that may suffer rust and deterioration over time, fiberglass pools remain unaffected by water exposure. The thermoplastic polymer resins used in their construction create a moisture-resistant barrier, preventing issues like delamination or blistering that can occur in other materials.

Impact Resistance

While fiberglass pools are known for their smooth finish and sleek appearance, they are also impressively tough. The multi-layered construction, including hand-laid fiberglass mats and honeycomb core reinforcements, gives the pool a high impact resistance.

Adaptable to Harsh Climates

Fiberglass pools perform exceptionally well in extreme climates, whether it’s the intense summer heat or the freezing temperatures of winter. The material does not warp, expand, or contract significantly with temperature changes, so homeowners don’t need to worry about seasonal damage. Proper winterization further enhances the pool’s longevity, ensuring it remains in excellent condition year after year.

Sustainability

The durability of fiberglass pools also makes them a more sustainable choice. Their long lifespan reduces the need for frequent replacements or repairs, which minimizes waste and conserves resources over time.

Shapes and Sizes for Every Lifestyle

When it comes to fiberglass pools, versatility is the name of the game. Whether you’re looking to entertain guests, play with your kids, exercise, or simply relax, there’s a fiberglass pool design that fits your lifestyle. Long gone are the days when fiberglass options were limited; today’s pools offer a range of shapes, sizes, and features that rival custom designs.

From Thursday Pools’ patented zero-entry options, like the Grace Beach Entry (rectangular) and Sandal Beach Entry (freeform), to bestsellers like the Aspen, which includes tanning ledges, full-length steps, and open swim areas, there’s a size and shape for every preference. Fiberglass pools now cater to all kinds of backyard landscapes, ranging from compact designs perfect for small spaces to expansive pools that accommodate large gatherings and outdoor amenities.

Finding a Pool Shape to Match You

Your pool’s shape influences aesthetics and reflects how you plan to enjoy it. Fiberglass pool designs range from classic rectangles and Roman shapes to flowing freeform curves that feel organic and inviting.

• Rectangular Pools: Perfect for fitness enthusiasts or those who love clean, modern lines. Their symmetry makes them ideal for lap swimming. They also pair beautifully with formal landscaping. Rectangular pools maximize swim space, making them great for families or larger groups.

• Freeform Pools: Freeform pools offer gentle curves and create a sense of movement for a more relaxed, natural vibe. These designs are perfect for homeowners wishing to blend their pool seamlessly with existing landscaping.

• Roman and Combination Shapes: Love structure with a touch of creativity? Designs like the Cathedral and Cathedral LX offer rectangular swim spaces with elegant arched ends for added personality.

Choosing the Right Pool Size

The size of your pool plays a critical role in its functionality and how well it integrates into your backyard. Larger fiberglass pools are ideal for those who want plenty of swim space, whether for exercise or entertaining a crowd. On the other hand, medium-sized pools offer a balance between swim areas and compact footprints. For smaller spaces, compact pools can still provide ample room for relaxation or play and even include luxury features like tanning ledges or built-in seating.

When selecting a size, it’s important to consider how you plan to use the pool and how it fits into your backyard’s overall layout. A smaller pool may be ideal if your yard doubles as a garden, dog run, or play area. However, if your backyard is primarily for outdoor living, a larger pool can anchor the space while leaving room for complementary features like an outdoor kitchen, pergola, or lounge area.

Factors to Consider When Choosing Your Pool Size

Selecting the right size and shape isn’t just about personal preference—practical considerations also influence it:

• Setbacks: Local regulations may dictate how close your pool can be to property lines.
• Underground Utilities: To identify potential obstructions, such as septic systems or utility lines, survey your yard.
• Zoning and Easements: Verify lot coverage restrictions, greenspace requirements, and any easements that could impact your pool placement.
• Access: Fiberglass pools arrive pre-assembled, so your yard must accommodate the delivery process, including overhead clearance for power lines or trees.

Fiberglass Options That Transform Your Backyard

Fiberglass pools are far from one-size-fits-all. Whether your goal is creating a space for exercise, family fun, or relaxation, the versatility of fiberglass pools ensures a design that fits your lifestyle. From compact options to indulgent features, fiberglass pools offer something for everyone, redefining what’s possible in backyard living.

Elevating the Pool Experience

Wading Pools: Wading pools provide a shallow, uniform depth that’s perfect for young children and adults alike. These pools include built-in benches for relaxing and are available in two sizes, making them a practical and low-maintenance addition to your outdoor space. Whether you’re looking for a safe play area for kids or a simple place to cool off, wading pools are a delightful way to enhance your backyard.

Wet Decks: A wet deck is the perfect addition for those who love to relax in the sun while staying cool. This design features a shallow 12-inch depth that allows you to lounge comfortably with your feet in the water. Wet decks can include custom spillways that integrate seamlessly with the main pool, enhancing your pool area’s look and functionality.

Spas: A fiberglass spa is a must-have addition to your pool setup for the ultimate relaxation. Available in two sizes, these spas comfortably seat up to seven people, providing the perfect space to unwind, soothe sore muscles, and enjoy quality time with family or friends.

Living the Life of Luxury with Beach Entry Pools

The beach-entry pool is at the pinnacle of fiberglass pool design, a feature that combines accessibility, elegance, and resort-style living. These pools eliminate the need for stairs, offering a gradual, sloping entry that mimics the experience of walking into the ocean. The seamless transition from deck to water creates a stunning visual effect while providing a practical solution for families with children, older adults, or anyone who values effortless entry.

Beach-entry pools also serve as a luxurious aesthetic centerpiece, transforming your backyard into a tranquil retreat. Whether used for lounging in shallow waters or creating a dramatic first impression, this feature epitomizes the sophistication and functionality that fiberglass pools can deliver.

Fiberglass pools offer a world of possibilities, from practical and functional designs to indulgent features that redefine backyard luxury. Whether you’re drawn to the relaxing comfort of a spa, the innovative versatility of sunken seating, or the stunning allure of a beach entry, there’s no shortage of options to make your pool uniquely yours.