The smoothest surface you can get
Noticeably different from any other cement-based interior.
Polished Pool Finishes
An aggregate finish polished smooth after it’s applied. The smoothest interior available, and water that reflects rather than shimmers.
What It Is
What is a polished finish?
A polished pool finish is an aggregate interior that gets mechanically polished after it’s applied, rather than washed to expose the stone. Crews trowel on a marble-aggregate mix, let it set, then run a water-driven polishing head over the whole surface, the same idea as polished terrazzo, done underwater. The result is the smoothest surface available in any cement-based finish: dense, low-porosity, and glassy to the touch.
This is the answer for anyone whose first question about pebble is “will it hurt my feet.” Families with small children who spend hours on a sun shelf, anyone with sensitive skin, and swimmers pushing off a wall lap after lap all notice the difference immediately.
It also suits a particular look. The surface is dense and closed, so it reflects light more like a mirror than a riverbed, giving the water a still, deep, uniform quality. On dark colors the effect is dramatic: a polished dark finish reads almost like a reflecting pool. It sits at the top of the range on price, and the polishing step means a longer job.
A dark polished finish at dusk
Glassy to the touch Polished marble, polished pebble, pebble
Your options.
Base material
Polished marble aggregate, or a pebble blend polished after exposure. Marble aggregate is the classic polished finish and the smoothest available. A polished pebble keeps more of the stone character while cutting the texture substantially.
Color
Whites and creams through blues, greens, grays, and near-black. Polished surfaces reflect rather than scatter light, so colors read deeper and more uniform than the same shade in an exposed finish.
Aggregate grade
Fine or coarse marble, crystalline or colored. Coarse crystalline marble gives more visible movement and sparkle; fine grades read as a solid, even color.
Accents
Shell and glass beads worked into the mix. Sparkle still works on a polished surface, and it sits flush rather than proud.
Why polished.
Dense and closed
Polishing tightens the surface, which helps it resist staining.
Still, mirror-like water
Reflection rather than shimmer, a distinctly different look.
Comfortable everywhere
Sun shelves, steps, benches, and walls all stop being abrasive.
FAQs
The polishing is the product. These are the questions we hear most about polished finishes.
What is a Hydrazzo finish?
It’s a well-known brand of polished marble-aggregate interior, applied and then diamond-polished to a very smooth surface. Several manufacturers make comparable polished finishes, and the process is more alike than different between them.
Is a polished finish slippery?
It’s smoother than an exposed finish, so it does have less grip when wet. That’s rarely an issue on the pool floor, and worth discussing for steps, benches, and the sun shelf where people stand.
Who should do the polishing?
Important. Ask who does it and how many pools they’ve done. This is the one interior finish where the crew’s experience with the process matters more than the material spec. An inexperienced polish shows up as uneven sheen, patches catching light differently across the floor, and it’s visible forever and very hard to correct once the pool is filled.
Can a pebble finish be polished?
Yes. Certain pebble blends can be polished after exposure, which keeps some of the stone character while removing most of the texture. It’s a middle option between standard pebble and full polished marble.
Why does a polished finish cost more?
The polishing is a skilled step performed on site rather than something that arrives in a bag. That means a longer job and a higher price than an exposed finish.
How long does a polished finish last?
Expect a service life in the same territory as other quality aggregate finishes, well beyond plain plaster. The binder is still cement, so water that’s low in calcium or acidic will attack it however smooth the top is.
What should I ask any builder?
Three things. Who polishes it, and how many have they done? What’s going on the shell first? How is slip resistance handled on the steps?
Other Interior Finishes
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