Pool Interior Finishes: Plaster vs Quartz vs Pebble vs Glass Bead
Short answer: Standard plaster is the least expensive and wears out soonest. Quartz finishes cost more and last longer, pebble and other exposed aggregate finishes are the most durable and usually cost the most, and glass bead is a premium option. Lifespan depends heavily on water chemistry and startup care. Make sure each quote names the finish brand and line, not just "plaster."
What the interior finish does
On a gunite or shotcrete pool, the interior finish is the waterproof surface you see and touch. It sets the color and feel of the water, and it is the part that gets resurfaced over time. Fiberglass and vinyl liner pools have their own surfaces and do not use these finishes.
Finish types compared
| Finish | What it is | Cost | Typical lifespan (contractor estimates) | Feel |
|---|---|---|---|---|
| Standard plaster | Cement and marble dust, white or colored | Lowest | About 5 to 12 years | Smooth |
| Quartz | Plaster with quartz aggregate | Moderate | About 10 to 17 years | Smooth, more color options |
| Pebble (exposed aggregate) | Small natural stones set in cement | Highest of the common options | About 15 to 20 or more years | Textured, rougher underfoot |
| Glass bead | Glass beads in cement | Premium | Ask the manufacturer for lifespan and warranty | Smooth, sparkling look |
These are ranges from contractor and trade sources and they overlap and disagree. Cost per square foot varies by region and by prep work, so rely on your own quotes for pricing.
What changes lifespan
- Water chemistry. Out-of-balance water etches and stains any finish.
- Startup process. The first weeks after fill matter, and many finish warranties require following a startup program.
- Installer skill. A skilled crew matters as much as the material.
- Climate and use. Heat, salt systems and heavy use can all shorten life.
What to check on a pool quote
- The brand and line of the finish, plus color. A brand-name aggregate is a different product from a generic one.
- Whether waterline tile is included, and what material.
- The warranty terms, including what voids them. See pool warranties.
- Whether the startup and chemistry program is included, and who runs it.
Comparing quotes
A quote with a higher grade finish costs more for a reason. When totals differ, check finish first. See why quotes differ and construction types.
Frequently asked questions
Which pool finish lasts longest?
Pebble and other exposed aggregate finishes are generally cited as lasting the longest, often 15 to 20 years or more, followed by quartz, then standard plaster. Water chemistry and startup care affect every finish.
Is a pebble finish worth the extra cost?
It costs more up front but resurfaces less often, so it can cost less over a long period. The textured surface feels rougher underfoot than plaster or quartz, so some owners prefer a smoother finish.
Do it automatically
Pool Quote Compare reads two to four proposals from PDF or pasted text, fills in the fields, and shows the quotes side by side with exclusions lined up.
Compare finishes and materials across your quotes