All three finishes are cement-based and hand-applied in one day; materials change, not the basic process. Compare their texture, color and response to Denver-area hard water, UV and seasonal conditions below.
Side-by-side comparison
Pebble lasts about twice as long as white plaster and costs about 1.5 to 2 times as much. Quartz sits in the middle on both. Here's how they compare on a typical 15×30 ft residential pool.
| White plaster | Quartz | Pebble | |
|---|---|---|---|
| Look | Bright white; water reads light aqua | Speckled color; water reads blue, teal or gray | Natural stone; water reads deep blue to lagoon |
| Feel | Smooth | Smooth to very slightly textured | Textured (standard) or smooth (mini/polished) |
| Typical lifespan | 10–15 years | 12–20 years | 15–25+ years |
| Cost tier | $ | $$ | $$$ |
| Typical 15×30 job | $8,500–$11,500 | $10,000–$13,500 | $14,000–$20,000 |
| Stain resistance | Low; shows metal and leaf stains | Medium | High; texture hides stains |
| Etch resistance | Low | Medium | High |
| Best for | Budget, short ownership, classic look | Most family pools | Long-term owners, hard water, premium look |
Prices are typical 2026 Denver-area ranges: estimates for the Denver metro, not a quote. Your written estimate sets the price. See the full Denver cost guide for add-ons such as tile, coping and crack repair.
White plaster
White plaster, also called marcite, is white cement and marble dust, troweled smooth. It's the least expensive finish and still the most common on older Denver pools. A good white plaster job typically lasts 10–15 years.
Why people choose it: cost, a smooth feel underfoot and the classic bright aqua water. It's also the easiest finish to patch and acid wash later.
The trade-off: plaster is the most sensitive finish to water chemistry. Low pH or low calcium lets water dissolve the surface (etching), and high calcium leaves scale. White shows every metal stain, leaf stain and dark spot. Acid washing can freshen it, but each wash removes a thin layer, so you get only a couple before it needs replastering.
Best for: owners on a tight budget, homes you'll sell within a few years, and pools where the owner or a service company keeps chemistry dialed in. Learn more on our pool replastering page.
Quartz
Quartz finishes are plaster with crushed, colored quartz blended in. Quartz is harder than marble dust, so the surface resists etching and staining better and typically lasts 12–20 years.
Why people choose it: color. White plaster pigmented to a dark color tends to mottle and fade, while quartz holds color more evenly. It also hides minor staining better than white and costs only a moderate step up.
The trade-off: it's still a cement surface, so chemistry still matters. Darker quartz colors can show white scale lines at the waterline in hard water, and they fade somewhat under high-altitude sun over the years.
Best for: most family pools. It's the finish we recommend most often when someone wants better than basic without paying for pebble. Quartz work is covered on our pool replastering page.
Pebble
Pebble finishes, also called exposed aggregate, use small natural stones in a cement binder. After troweling, the top layer of cement is washed off to expose the stones. It typically lasts 15–25+ years, the longest of the three.
Why people choose it: durability and looks. The stone does most of the work against the water, so pebble resists etching, hides stains and tolerates chemistry swings better than plaster. It gives water a deep, natural color.
The trade-off: price and texture. Standard pebble feels like a riverbed underfoot. Mini pebble and polished lines are smoother but cost a bit more. Repairs are harder to blend invisibly than plaster patches.
Best for: owners planning to stay 10+ years, pools with a history of etching or scale, and anyone who wants a premium look. Finish lines such as Pebble Tec, StoneScapes or Diamond Brite are available through local suppliers. See pebble pool finishes.
Color and water color
The finish color sets the water color more than any other choice. Lighter finishes make water look light aqua; darker finishes make it look deep blue, teal or even near-black on cloudy days.
- White and light gray give classic bright aqua water and show dirt and stains most.
- Light blue and tan give a Caribbean-style blue-green.
- Mid blue and gray give a deeper, more saturated blue. This is a common choice in the metro.
- Dark blue, charcoal and black give a lake-like look and warm the water a little in the sun, but show scale and fade fastest.
Look at finish samples wet and in outdoor light. A dry chip under fluorescent light looks nothing like 20,000 gallons of water over it. Tile color and the deck around the pool also change how the water reads. If you're replacing waterline tile at the same time, choose tile and finish together; see tile and coping.
Which finish holds up best in Colorado
Pebble holds up best in Colorado, quartz is solid and white plaster wears fastest. Two local conditions drive the difference: hard water and freeze–thaw.
Hard water. Front Range water tends to carry plenty of calcium, and evaporation in dry summer air concentrates it further with every top-off. High calcium and alkalinity leave scale, especially at the waterline. Low calcium in the other direction etches plaster. Exposed stone is far less reactive than a cement-rich surface, so pebble shows less of both. Quartz is in between.
Freeze–thaw. The finish itself isn't what usually fails in winter. The damage comes from water getting behind loose tile, into cracks or under hollow spots, then freezing and expanding. Any finish can delaminate if the shell behind it is cracked or the pool was winterized poorly. That's why prep and crack repair matter more than finish choice for winter durability. More in freeze–thaw pool damage in Denver.
UV at altitude. Denver sun is strong. Colored plaster and quartz fade gradually; pebble color comes from stone and fades very little.
What about paint, tile or fiberglass?
Paint, full tile and fiberglass come up in bids now and then, but none of them is a like-for-like replacement for plaster on a Denver concrete pool. Here's why we rarely recommend them.
- Epoxy pool paint costs the least up front but typically lasts only a few years before it chalks and peels, and it has to be stripped or sandblasted before the pool can ever be plastered again. In strong high-altitude sun it fades and breaks down faster.
- Full tile interiors are beautiful and very long-lived, but they cost several times what pebble does. They're usually chosen for spas, accents and high-end builds rather than whole family pools.
- Fiberglass liners or coatings applied over concrete exist, but bonding them to an older shell that moves with freeze–thaw is tricky, and repairs are specialized.
For most concrete pools in the metro, plaster, quartz or pebble gives the best mix of cost, lifespan and repairability.
Our recommendation by pool and owner
There's no single best finish; it depends on how long you'll keep the pool and how much you'll fuss with chemistry. Here's what we usually suggest.
| You are... | We usually suggest | Why |
|---|---|---|
| Selling within 3–5 years | White plaster | Lowest cost, fresh look for buyers |
| Raising kids in the pool daily | Quartz or mini pebble | Durable without rough standard pebble on toes |
| Staying 10+ years | Pebble | Lowest cost per year of life |
| Fighting stains or etching now | Quartz or pebble | More forgiving of chemistry swings |
| Want a dark, natural look | Pebble or dark quartz | Holds deep color best |
| Managing an HOA or apartment pool | Quartz or pebble, chosen by budget and code | See commercial and HOA |
Not sure your pool needs a new finish yet? Check the signs your pool plaster is failing and how often to resurface in Colorado. If the surface is just stained, draining and acid washing may buy a few seasons. When you're ready, send photos for a free estimate and we'll price two or three finishes side by side.