How Often Should You Pressure Wash a Driveway in Central Texas?

Search this question and you'll get 'once a year' from a site that has no idea where you live. Central Texas is harder on concrete than most of the country, and the honest answer depends on a few things specific to your property.

What stains concrete around here

• Red clay soil. Bastrop County dirt is iron-rich, and iron leaves rust-colored staining on light concrete that gets worse with every rain that splashes it up.
• Tree canopy. Shade keeps concrete damp, and damp concrete grows algae — that's the green-black film that turns a driveway slick after rain.
• Cedar and oak pollen. Spring pollen is heavy here and it bonds into a yellow film that ordinary rain won't lift.
• Heat. Texas sun bakes organic staining into the surface, and the longer it bakes the harder it is to reverse.
• Vehicle drips. Oil and transmission fluid soak into porous concrete and set permanently if they aren't treated.

A realistic schedule

Every 12–18 months — most homes

An open driveway with moderate sun exposure and normal use does well on this cycle. You're cleaning before staining sets rather than after.

Every 9–12 months — heavy shade

If live oak or pine canopy covers your driveway, algae comes back faster and it's a safety issue as much as an appearance one. Algae-covered concrete is genuinely slippery when wet.

Every 6 months — commercial and high-traffic

Storefront entries, walkways and lots pick up foot traffic grime, gum and spills continuously. A twice-yearly schedule keeps them presentable rather than letting them get bad enough that customers notice.

Signs you've waited too long

• Green or black film that gets slick after rain
• A visible clean line where a planter or vehicle has been sitting
• Rust-colored streaks along the edges where soil splashes up
• Dark shadow-like patches under the tree line that don't dry out

None of these are permanent yet. All of them get harder to reverse the longer they sit.