Gunite vs. Shotcrete: What’s Best for Your Pool in Austin, Texas?

As a pool builder working hands-on in Austin, I get this question all the time: What’s the difference between gunite and shotcrete, and which one is better for my pool? The answer isn’t always simple—but if you’re planning to build a pool in Central Texas, it’s important to understand the pros, cons, and key differences between these two concrete application methods.

1. Which is More Durable in Austin’s Climate?

Gunite tends to be the more flexible and durable option in our region. According to local research, around 95% of pools affected by Alkali-Silica Reaction (ASR)—a condition that can cause cracking and deterioration—are shotcrete pools. That’s one reason why many builders here lean toward gunite. With our shifting soils, dry spells, and temperature swings, flexibility can be an asset.

2. What Are Shotcrete and Gunite Made Of?

Gunite is a mix of dry cement and river sand that’s blown through a hose using compressed air. At the nozzle, water is added just before application. This gives the crew more control over how the material is applied on-site.

Shotcrete, on the other hand, is a premixed blend of sand, cement, and water delivered in a ready-mix truck. It's pumped wet through a hose and sprayed under pressure onto the poolform. This method requires a continuous and consistent application to prevent weak spots or cold joints.

3. How Does Crew Skill Impact Quality?

No matter which material is used, proper installation is critical. One of the biggest challenges is getting the moisture level just right—too much or too little water can weaken the structure. Applying the product evenly around pipes and rebar also takes precision and experience.

That said, skilled crews can make a big difference. For example, experienced teams are better at producing a smooth, even surface. A good finish not only looks better, but it also helps prevent issues like plaster cracking and future surface repairs.

4. How Should You Choose Between the Two?

The most important factor isn’t the material—it’s the crew applying it. If your contractor specializes in gunite and has a solid track record, go with gunite. If they’ve got strong experience with shotcrete, that can be just as good. The price difference between the two usually isn’t significant, so focus more on choosing a builder who knows their craft inside and out.

Final Thoughts

Both gunite and shotcrete can produce high-quality, long-lasting pools—when applied correctly. In Austin, where ground movement and temperature extremes are part of the deal, choosing a skilled contractor matters more than picking one material over the other. Talk to your builder, ask about their experience with each method, and don’t be afraid to ask for examples of past work.

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