Fiberglass vs Concrete Pools: What We’ve Learned After Building 100,000+ Pools
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Time to read 6 min
You are excited about building a swimming pool. Now, the question do you go with fiberglass or a concrete swimming pool?
Pool installations average cost for Shasta Pools is $78,000. However, the initial price tag is just the beginning. Maintenance costs and chemical usage separate over the life of your pool.
Shasta Pools has built and remodeled over 100,000 pools since 1966. We've seen homeowners who wished they'd known what we're about to share with you.
The real difference between fiberglass and concrete is what happens after your pool is installed. How often you'll need major repairs plays a vital role in the total cost of ownership. We build both shotcrete and fiberglass pools and believe both are great.
This article provides the actual costs and manufacturing differences. We share long-term performance factors that matter most to homeowners. Afterwards, each homeowner has the knowledge to make the best decision for them.
Table of contents
What Fiberglass vs Concrete Pools Cost?
Fiberglass and concrete pools cost similar to install. The differences in prices are more geographical. In Arizona, comparable fiberglass pools cost slightly more than concrete pools. Although, states like California can offer fiberglass pools on average $10,000 cheaper.
Concrete pools take two to three months or longer. Each phase happens in sequence. Every extra week means more labor costs. Fiberglass pools arrive ready to install. Most projects finish in weeks. The faster timeframe delivers fewer labor hours and lower total cost.
Fiberglass pools have become popular for DIY pool builders. Homeowners can shave money by handing their own subcontracting. Buying a fiberglass shell that is ready for installation can save thousands on total pool construction costs.
Fiberglass vs Concrete
“The biggest difference in how fiberglass and concrete pools come together is the process. With fiberglass, the entire pool shell is engineered and manufactured in a controlled environment before it ever reaches the backyard. That allows for a much more streamlined installation once it’s delivered.
With concrete, everything is built step by step on-site, which naturally takes more time because each phase has to be completed before the next can begin. That difference in process is what ultimately impacts both timeline and overall project cost.” - Skip Ast III, Director of Sales Shasta Pools
What Does a Fiberglass Pool Cost?
You’ve seen the comparisons. Now, get into the real numbers. From installation to long-term ownership, see what impacts the price.
What is the Long-term Cost Analysis for Fiberglass vs Concrete Pools?
- Fiberglass pools: $4,000 in maintenance
- Concrete pools: $15,000 to $27,000
What is the difference in price? Every 20-25 years, concrete pools need complete resurfacing. The average cost of resurfacing is around $10,000. With proper care, your fiberglass pool can last the lifetime of your home.
For concrete pools, algae and bacteria embed deep into the surface. This demands constant chemical treatment. Altogether, concrete pools use 70% more chemicals than fiberglass pools.
What Makes Fiberglass Pools Different?
Why does fiberglass manufacturing matter so much? Fiberglass pools perform differently because they’re engineered in controlled environments.
The entire shell is designed, layered, and inspected before it ever arrives. That process allows for tighter quality control and more consistent long-term performance.
Installation Move Faster
“The shell is fully manufactured ahead of time using controlled processes, material layering, and quality checks before it’s delivered to the job site. That allows installation to move much faster once construction begins.” - Skip Ast III, Shasta Pools
What makes the materials more durable?
Fiberglass pools use layered composite construction.
- Gel coat surface → smooth, non-porous, long-lasting finish
- Vinyl ester resin → creates a watertight, corrosion-resistant barrier
- Fiberglass reinforcement → provides structural strength
- Advanced reinforcements (carbon fiber, Kevlar) → add durability and flexibility under stress
How does manufacturing impact installation and long-term value?
Because fiberglass pools are built ahead of time.
- Installation is faster and more predictable
- Fewer variables affect quality
- Structural integrity is verified before delivery
Ready to See What Your Backyard Could Become?
You’ve explored the options. Now it’s time to see what’s possible. Browse real pool designs, features, and ideas built for Arizona homes. If you are interested Shasta Pools building your dream pool?
When Does Concrete Offer the Best Option?
Concrete pools are often the better option when your priority is complete design flexibility and high-end customization.
Unlike fiberglass, which is manufactured from pre-set molds, concrete pools are built entirely on-site. That means you can create:
- Fully custom shapes and sizesVanishing edges or perimeter overflow designs
- Integrated features built directly into the structure
- Unique layouts that match complex or irregular backyards
When does customization outweigh cost and maintenance?
Concrete makes the most sense when:
- You want a one-of-a-kind design that isn’t limited by a mold
- Your yard has tight access or unusual dimensions
- You’re building a luxury or architectural statement pool
- You’re prioritizing design freedom over long-term maintenance simplicity
Why Does Installation Speed Matter for Building a Swimming Pool?
How long does it really take to install a fiberglass vs. concrete pool?
Concrete pools: 30–45 working days minimum, often stretching to 3–6 months when you factor in curing time, inspections, weather delays, and sequential construction phases.Fiberglass pools: Typically installed in 7–10 working days, with full projects completed in 3–5 weeks after permits.
Fiberglass Builds Faster
“Because the shell is manufactured ahead of time and delivered ready to install, the construction process can move much faster and more efficiently once work begins on-site.” - Skip Ast III, Shasta Pools
With concrete pools:
- Multiple crews are scheduled across different phases
- Each step must be completed before the next begins
- Delays extend labor costs and project overhead
With fiberglass:
- The pool shell is pre-manufactured
- Installation happens in a streamlined, overlapping process
- Fewer labor hours = more predictable costs
Fiberglass vs Concrete Pools Comparison
Attribute |
Fiberglass Pools |
Concrete Pools |
Initial Installation Cost |
Starting at $50,000 |
Starting at $60,000-$65,000+ |
Installation Timeline |
7-10 working days (3-5 weeks total) |
30-45 working days (3-6 months total) |
Annual Chemical Costs |
$175-$400 |
$600-$800 |
Chemical Usage |
25-35% fewer chemicals; 70% less than concrete |
70% more chemicals than fiberglass |
Resurfacing Cost |
Not typically required |
$10,000+ per resurfacing |
Acid Washing |
Not required |
Every 3-6 years at ~$500 per treatment |
Algae Resistance |
High - algae sits on surface, easy removal with gentle brushing |
Low - algae embeds in porous cavities, requires weekly scrubbing with steel brushes |
pH Impact |
Gel coat doesn't affect water alkalinity or pH |
Alkaline composition continuously raises pH levels |
Maintenance Time |
Few hours monthly |
Weekly brushing required |
What Swimming Pool Option is Best for You?
Fiberglass pools cost less to install and require minimal maintenance. After 60 years building pools in Arizona, we've watched fiberglass go from an interesting alternative to the smart choice. However, concrete pools allow the builder to create custom pools. We have found many homeowners have a vision of what they want their pool to do.
This isn't just about saving money. It's about spending your weekends enjoying your pool. Therefore, it's about making a decision you'll feel good about 20 years from now.
We've helped thousands of Arizona families make this decision. We're here to help you get it right.
FAQ
How long does it take to install each type of pool?
How long does it take to install each type of pool?
Do fiberglass pools require resurfacing like concrete pools?
Fiberglass pools rarely need resurfacing and are designed to last for decades without major refinishing.
Why do fiberglass pools require fewer chemicals than concrete pools?
Fiberglass pools have a smooth, non-porous gel coat surface that resists algae growth and doesn't affect water chemistry.
References
Lathampools.com Fiberglass vs Concrete Pools a complete guide
Shastapools.com Fiberglass Pools Faster Installation
Bryan Ashbaugh
Bryan Ashbaugh is a pool industry writer and product expert at Shasta Pool Supply and Shasta Pools, where he’s dedicated to helping homeowners and pool professionals make informed decisions about their pool care and equipment. With years of hands-on experience in pool service and retail, Bryan combines real-world expertise with clear, trustworthy advice. He’s passionate about simplifying pool ownership through helpful how-to guides, honest product insights, and the latest innovations in pool technology.
