What Is the White Haze on New Pavers?
That white film on Inland Empire pavers is efflorescence, a salt deposit pushed to the surface when water moves through concrete pavers and dries in the heat. It is cosmetic, not structural, and shows up most in the first year as pavers cure. It fades on its own or lifts with a mild acid wash.
Last updated: July 2026
We get this call every few weeks. Usually a homeowner two months out from a fresh patio install, standing there with the phone, looking at a chalky bloom that was not there the day we pulled out of the driveway.
And the first thing we tell them: the pavers are fine.
Why Does It Happen Here More Than Other Places?
Concrete pavers hold natural salts. Water from irrigation, a first rain, or even morning humidity pulls those salts up through the pore structure. When the water hits the surface and evaporates fast in our dry 90-plus-degree afternoons, the salt gets left behind as a white crust.
The Inland Empire is close to a worst case for this. Wet-dry swings are sharp. We had a job off Esplanade Avenue in San Jacinto where the haze came in strong after the first August humidity spike, then half-faded by October on its own. We never touched it.
New pavers bloom the hardest. Most of it clears inside the first 12 months.
Is It Efflorescence or Mold?
People mix these up. From the patio door they look about the same. They are not the same problem, and the fix is different.
| Sign | Efflorescence | Mold or Mildew |
|---|---|---|
| Color | White, chalky, powdery | Green, black, or gray, often slimy |
| Where it sits | Shaded and sunny areas alike | Damp, shaded, low-drainage spots |
| Feel | Dry powder, rubs off | Slick when wet |
| Fix | Rinse, dry brush, or mild acid wash | Cleaner plus better drainage |
Quick test. Efflorescence is a dry salt, pH around 9 to 10, and it powders under a dry brush. Mold smears.
How Do We Treat It?
For a light bloom, we start with the least aggressive option. Dry brush, then a plain water rinse on a warm day so the surface dries quick.
- Dry brush the loose salt with a stiff push broom.
- Rinse with water and let it dry fully in the sun.
- If it returns, use a diluted efflorescence remover or a mild muriatic solution, roughly 1 part acid to 10 parts water, tested on one paver first.
- Neutralize and rinse, then reseal once the pavers read fully dry.
We test a hidden corner before touching the main field. Too strong a mix etches the paver face and dulls the color. That damage does not come back.
What Does Cleanup Cost?
If a homeowner wants us to handle it, a wash and reseal on a 500 square foot patio runs roughly $0.60 to $1.20 per square foot depending on how heavy the bloom is and whether sealer is due.
Honestly, on a light first-year bloom we usually tell people to wait. Give it a season. A Hemet backyard near Stetson Avenue cleared on its own by the second summer with nothing but the sprinklers hitting it.
Sealing helps going forward. A breathable penetrating sealer slows how fast salts reach the surface without trapping moisture underneath. We usually wait 60 to 90 days after install so the pavers finish curing first.
Want the full rundown on keeping hardscape clean out here? Read our guide on maintaining pavers in a desert climate, or see how we build them on our paver patio and driveway page.
If we laid your patio and the haze has you worried, send us a photo. Nine times out of ten it is salt, and it is going to be fine.