Top 7 Mistakes to Avoid When Buying a Fiberglass Pool

Buying a fiberglass pool isn’t something you do on a whim, it’s a big decision, and for many families, it’s a once-in-a-lifetime purchase. We’ve worked with enough homeowners to know how exciting this step can be. It’s the start of weekend barbecues, summer parties, and finally having that relaxing backyard space you’ve been dreaming about.

But we’ve also seen what happens when people rush the process or rely too much on assumptions. Sometimes it’s a pool that doesn’t quite fit the yard, or unexpected costs that pile up later. These mistakes can turn what should be a fun, rewarding project into a frustrating experience.

This post isn’t here to scare you, but we do want to help you avoid some of the most common missteps we’ve seen over the years. If you're planning to install a fiberglass pool, these are the top 7 mistakes to watch out for, and what to do instead.

Skipping a Soil Test Before Installation

Why It’s a Mistake

Soil conditions directly impact how your fiberglass pool performs over time. If your yard has a high clay content, loose sand, or unstable subsoil, it could lead to settling issues, cracks, or drainage problems. Unfortunately, many homeowners skip this step thinking it’s not necessary.

What You Should Do

Before installation, hire a local soil professional to conduct a basic soil test. It doesn’t have to be expensive, and it gives your installer the information they need to prepare the site properly. A solid foundation now can save you from major headaches later.

Not Verifying the Contractor's Experience

Why It’s a Mistake

Not all pool contractors are created equal, and fiberglass installation is very different from vinyl or concrete. Hiring someone who’s unfamiliar with fiberglass-specific procedures can result in uneven installation, structural problems, or even voided warranties.

What You Should Do

Take the time to ask for references from previous clients. Look up online reviews and ratings. Most importantly, make sure the installer is licensed, insured, and has direct experience with fiberglass pools, not just general pool work.

Choosing the Wrong Pool Size for Your Yard

Why It’s a Mistake

Size matters, especially when it comes to fiberglass pools. A pool that’s too big for your yard can throw off the balance of your outdoor space, limit areas for lounging or landscaping, and even conflict with local building codes. Once it’s installed, there’s no going back.

What You Should Do

Take time to evaluate your space with both function and flow in mind. Below is a quick reference to help guide your decision:

Consideration	Why It Matters
Yard Size	Avoids crowding or poor fit
Local Setback Laws	Ensures legal placement
Intended Use	Helps determine ideal size and shape

Before making a final choice, talk with your installer about how much room you’ll need for walkways, patios, and landscaping.

Overlooking the Importance of Pool Depth

Why It’s a Mistake

Depth isn't just about how deep the water goes, it impacts safety, comfort, and the overall pool experience. Many buyers end up with regrets because they didn’t think through how the pool will actually be used day-to-day.

What You Should Do

Start with how your family plans to use the pool most often:

• Relaxation or Family Use: A depth of 3 to 5 feet offers a safe and comfortable environment for kids and adults to enjoy.

• Diving or Lap Swimming: A deeper end may be necessary for performance and safety.

Always consult with your installer about local regulations and manufacturer guidelines to ensure proper safety and code compliance.

Ignoring Local Zoning or Permit Rules

Why It’s a Mistake

Skipping the permitting process or overlooking zoning requirements might seem like a shortcut, but it can cause major setbacks. If your fiberglass pool doesn't comply with local codes, you could face hefty fines, construction delays, or even be forced to remove the pool entirely.

What You Should Do

• Get in touch with your local zoning or building office early in the planning phase.

• Ask your pool installer if they assist with permit applications (most reputable ones will).

• Make sure all approvals and inspections are secured before any digging or construction begins.

Cutting Costs on Essential Accessories

Why It’s a Mistake

It’s tempting to save money on add-ons like pumps, covers, and lighting, but cheap accessories often end up costing more in energy, repairs, and maintenance. A poorly chosen filter or inefficient pump can shorten the lifespan of your pool equipment and affect water quality.

Must-Have Accessories

Accessory	Why You Need It
High-Efficiency Pump	Cuts down on energy use and lowers bills
Automatic Pool Cover	Improves safety and keeps debris out
LED Lighting	Adds ambiance and improves nighttime visibility

These upgrades might add to your upfront cost, but they pay off long-term in both savings and peace of mind.

Failing to Plan for Maintenance and Long-Term Care

Why It’s a Mistake

Fiberglass pools are known for being low-maintenance, but that doesn’t mean no maintenance. Some buyers underestimate the ongoing care involved, which can lead to cloudy water, algae buildup, or damaged equipment.

What You Should Do

• Ask your installer or dealer for a full breakdown of lifetime maintenance costs.

• Learn basic upkeep: testing chemicals, backwashing filters, cleaning debris, and how to winterize.

• Create a seasonal or monthly care schedule that fits your climate and usage habits.

Final Thoughts

The excitement of owning a fiberglass pool should come with confidence, not regret. By planning ahead, asking the right questions, and working with trusted professionals, you’ll avoid these common pitfalls and enjoy a smooth, stress-free installation and years of backyard fun.

If you're ready to turn your pool dream into a reality, we're here to help every step of the way, from permits to pool parties.

Start Your Dream Pool Journey, Contact Dream Pools and Spas Today