One of the biggest decisions you’ll make when planning your swimming pool is choosing between gunite (concrete) and fiberglass construction. Both options have their advantages, and the right choice depends on your specific needs, budget, and timeline.
At Sharpe Design Pools, we specialize in both gunite and fiberglass pool installation, so we can help you make an informed decision. Here’s what you need to know about each option.
Gunite Pools: The Custom Choice
What is Gunite?
Gunite is a mixture of concrete and sand that’s sprayed onto a rebar framework to create your pool’s shell. Once applied, it’s shaped by skilled craftsmen and then finished with plaster, pebble, or tile.
Advantages of Gunite Pools
Unlimited Customization: This is the biggest advantage of gunite. Want a freeform lagoon shape? A geometric modern design? A pool that wraps around your existing patio? Gunite can do it all. You have complete control over shape, size, depth, and features.
Durability: A well-built gunite pool can last 50+ years. The concrete shell is incredibly strong and can handle extreme temperature fluctuations.
Can Be Refinished: When the interior surface shows wear (typically after 10-15 years), it can be replastered without replacing the entire pool.
Increases Home Value: Custom gunite pools are often seen as premium additions and can significantly boost your property value.
Considerations for Gunite Pools
- Longer construction time (8-12 weeks typically)
- Higher initial cost
- More maintenance required (brushing, chemical balancing)
- Rougher surface texture
Fiberglass Pools: The Efficient Choice
What is Fiberglass?
Fiberglass pools are manufactured off-site in a controlled factory environment. The one-piece shell is then transported to your property and installed in an excavated hole.
Advantages of Fiberglass Pools
Fast Installation: Most fiberglass pools can be installed and filled within 2-3 weeks. You could be swimming in your new pool in less than a month!
Low Maintenance: The smooth, non-porous surface of fiberglass resists algae growth and requires fewer chemicals to maintain proper water balance.
Smooth Surface: No rough spots to scrape your feet or swimsuits.
Lifetime Structural Warranty: Quality manufacturers like Imagine Pools offer lifetime warranties on the pool shell.
Energy Efficient: Fiberglass naturally insulates better than concrete, which can reduce heating costs.
Considerations for Fiberglass Pools
- Limited to pre-designed shapes and sizes
- Maximum width limited by transportation requirements
- Cannot be customized after installation
- May not fit extremely irregular yard shapes
Which Pool is Right for You?
Choose Gunite if:
- You want a completely custom design
- Your yard has unusual dimensions
- You want integrated features like attached spas or beach entries
- Budget and timeline are flexible
- You prioritize long-term customization potential
Choose Fiberglass if:
- You want to be swimming as soon as possible
- You prefer lower maintenance requirements
- A pre-designed shape fits your space and vision
- You appreciate the smooth surface and warranty protection
- You want predictable pricing
The Sharpe Design Pools Advantage
Whether you choose gunite or fiberglass, Sharpe Design Pools brings the same commitment to quality, craftsmanship, and customer satisfaction. We’ll guide you through the decision-making process with honest advice tailored to your specific situation.
Ready to explore your options? Contact us for a free consultation and 3D design rendering of your future pool!

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