A swimming pool’s finish isn’t complete without the right grout. The material used between tiles not only affects appearance but also determines how well your pool holds up against water, chemicals, and weather. If you’re looking for the best pool grout, understanding the different types that will help you make the right choice for long-lasting results.
Epoxy Grout
Epoxy grout is widely considered the top choice for pools. It is non-porous, highly resistant to water and chemicals, and far less likely to crack compared to cement-based products. Because it resists stains and discoloration, epoxy grout is ideal for waterline tiles and areas exposed to heavy use. Its main drawback is cost; it’s more expensive and trickier to apply, requiring experienced installers. However, the durability makes it worth the investment.
Cement-Based Grout
Cement grout has been used for decades and remains popular due to affordability and availability. It comes in both sanded and unsanded versions and can be tinted to match different tile colors. While it’s easier to apply and more budget-friendly, cement grout is porous, which means it needs sealing and regular maintenance. Without proper care, it is vulnerable to staining, chemical damage, and cracking over time.
Polymer-Modified Grout
Polymer or urethane-modified grout provides a middle ground between epoxy and cement. It offers improved flexibility and chemical resistance while still being easier to apply than epoxy. This type of grout holds up well in pools and requires less frequent sealing. Although it costs more than traditional cement grout, many homeowners see it as a good balance of durability, performance, and maintenance.
What to Look for in Pool Grout
When deciding on the best pool grout for your project, keep the following features in mind:
- Water resistance: Pool grout should repel water and prevent moisture absorption.
- Chemical durability: Chlorine, salt, and pool chemicals can damage grout if it’s not designed for aquatic use.
- Stain and mold protection: Non-porous grout helps prevent mold and mildew growth in damp conditions.
- Flexibility: Pools expand and contract with temperature changes, so grout that can handle slight movement is essential.
- Color retention: Choose a grout that holds its color under constant exposure to water and sunlight.
- Ease of maintenance: Consider how often you’ll need to seal or clean the grout to keep it looking fresh
Common Mistakes to Avoid
Many grout failures come from simple errors during selection or installation. Choosing grout based on price alone can lead to poor results. Using interior grout in an outdoor pool, skipping sealing for cement grout, or rushing application and curing can all shorten the lifespan of your finish. Always work with experienced professionals who understand how to properly install and protect grout in pool environments.
Final Recommendation
For most homeowners, epoxy grout is the strongest option if you want maximum durability, stain resistance, and chemical protection. Polymer-modified grout is a solid second choice that balances performance with ease of use. Traditional cement grout is still acceptable if cost is a primary concern, but it requires sealing and consistent maintenance to prevent deterioration.
Ready to Regrout or Remodel Your Pool?
At Royal Pool Builders LA, we provide expert tile and grout services that restore both the beauty and strength of your pool. From epoxy to polymer-modified options, we deliver finishes built to withstand water, chemicals, and time. Whether you need repair, resealing, or a complete regrouting project, our specialists ensure your pool looks its best.
📞 Call (806) 542-3470 today to schedule a consultation or request a free estimate. Let us give your pool a durable and flawless finish with professional grout installation.