A swimming pool is more than just a functional water feature—it’s a central element of relaxation, luxury, and visual appeal. One of the most significant aspects influencing a pool’s appearance and performance is its interior finish. Among the most popular and long-lasting finish options are pool plaster and pool pebble finishes. Both offer unique benefits in terms of aesthetics, texture, durability, and maintenance. Whether you're building a new pool or resurfacing an existing one, understanding the differences between plaster and pebble finishes is crucial in making the right decision for your pool investment.
This comprehensive guide explores everything you need to know about Pool Pebble and Plaster, including their composition, benefits, drawbacks, cost considerations, installation process, and long-term care.
Understanding Pool Plaster: The Classic Finish
Pool Pebble and Plaster has been the go-to finish for concrete and gunite pools for decades. Typically made from a mixture of white cement, fine sand, and water, plaster creates a smooth, clean surface that seals the interior of the pool and gives it a classic blue or white appearance.
Benefits of Pool Plaster
Cost-Effective: Pool Pebble and Plaster is among the most affordable pool interior finishes, making it a popular choice for homeowners and commercial pool operators.
Smooth Texture: Its soft, smooth surface is gentle on swimmers’ feet and hands, offering a comfortable swimming experience.
Customizable Colors: While traditional white is the standard, colored plaster is available to enhance the water’s tone—ranging from light blues to deeper hues.
Easy to Apply: Installation is straightforward for experienced pool professionals, and it can be completed relatively quickly.
Drawbacks of Pool Plaster
Shorter Lifespan: On average, plaster lasts 7 to 10 years with proper maintenance. Over time, it can develop etching, discoloration, and rough patches.
High Maintenance: Plaster is more susceptible to staining and chemical damage compared to pebble finishes, requiring more frequent water chemistry balancing.
Not as Durable: Harsh weather, heavy usage, and chemical imbalance can cause cracks and surface wear more quickly than with other finishes.
Pool Pebble Finish: Strength Meets Natural Beauty
Pebble and pool plaster are made by mixing natural pebbles—typically quartz, river stones, or polished aggregates—into a cement base. The result is a textured, highly durable surface that provides a natural, earthy appearance. This type of finish has gained popularity for its visual appeal, resilience, and low maintenance requirements.
Advantages of Pebble Pool Finishes
Superior Durability: Pool Pebble and Plaster are highly resistant to chemical etching, staining, and weather-related damage. They can last up to 20 years or more with proper care.
Low Maintenance: Pebble surfaces require less maintenance than plaster. They're more resistant to algae, scale buildup, and discoloration.
Natural Aesthetic: The variety of stone colors and textures can create stunning visual effects. Water appears more vibrant and dynamic, often mimicking tropical lagoons or mountain springs.
Better Traction: The textured surface provides better grip underfoot, which can improve safety, particularly for families with young children.
Disadvantages of Pebble Finishes
Higher Cost: Pebble finishes are more expensive upfront due to material and labor costs.
Textured Surface: While many appreciate the natural texture, some swimmers may find it rougher than plaster. This can be minimized with polished pebble finishes, which offer a smoother surface.
The Installation Process
Whether you choose Pool Pebble and Plaster, proper installation is critical to ensuring a long-lasting finish.
Draining and Prepping the Pool
The process begins by completely draining the pool. The old finish is chipped away, and the surface is cleaned and prepared for bonding. Any structural issues are repaired at this stage.
Applying the Finish
For plaster, a smooth mixture is troweled onto the surface in layers and polished to ensure a consistent texture.
For pebble finishes, the pebble aggregate is sprayed onto the surface, then troweled in place. In polished pebble applications, the surface is further buffed to reduce roughness.
Curing and Refilling
After application, the surface must cure for several days. Once cured, the pool is refilled, and initial chemical balancing is conducted carefully to protect the new finish.
Cost Considerations
Budget plays a major role in choosing between plaster and pebble finishes.
Plaster: On average, plastering a residential pool costs between $4,000 and $7,000, depending on the size and color customization.
Pebble: Pebble finishes range from $8,000 to $15,000, depending on the brand, finish (standard vs. polished), and pool size.
Though pebble is more expensive upfront, its extended lifespan and lower maintenance costs often make it more cost-effective over time.
Maintaining Your Pool Finish
Proper maintenance can extend the life of both plaster and pebble surfaces:
Water Chemistry Balance
Maintaining appropriate pH, alkalinity, calcium hardness, and chlorine levels is essential. Imbalanced water can lead to scaling, etching, and staining.
Regular Cleaning
Brushing the walls weekly helps prevent algae growth and surface staining. Vacuuming and filtering are also essential for preserving finish integrity.
Avoid Abrasive Cleaners
Use only pool-safe tools and chemicals. Avoid abrasive brushes or harsh acids unless directed by a pool professional.
Routine Inspections
Inspect for surface changes, cracks, or stains, and address issues early to prevent extensive damage.
When to Resurface Your Pool
Even with the best maintenance, resurfacing becomes necessary over time. Here are signs your pool may need resurfacing:
Plaster is rough, stained, or cracked
Pebble finish is worn thin or aggregate is loosening
Water chemistry is increasingly difficult to maintain
Visible delamination or bubbling on the surface
If you’re already seeing these signs, a consultation with a professional pool contractor can help you decide on the best resurfacing strategy.
Conclusion
Your Pool Pebble and Plaster interior finish plays a crucial role in its visual appeal, comfort, and durability. Pool plaster offers a clean, affordable, and traditional aesthetic, ideal for those on a tighter budget or seeking a classic look. Meanwhile, pool pebble finishes provide a more luxurious, natural appearance with superior durability and minimal upkeep.
Whether you prioritize a budget-friendly approach or a long-term investment in beauty and resilience, understanding the strengths and limitations of both materials empowers you to make the right decision for your space. With proper installation and care, either finish can transform your pool into a sparkling centerpiece you’ll enjoy for years to come.
