Pressure Washing – Antioch, CA

Most Antioch homes from the 1960s through the 1990s are stucco or Hardie-plank siding. We house-wash all wall surfaces, then move to pool decks, concrete driveways, patios, walkways, and any fence panels scheduled for stain or coating. The Delta wind deposits fine silt on horizontal surfaces year-round, so driveways and back patios often need a surface cleaner pass before they'll hold sealer. If your job is pre-paint, we build the wash into the schedule as step one.

Antioch stucco and Hardie siding both get soft-wash: sub-500 PSI with sodium hypochlorite and surfactant at a 1:4 dilution. That removes mildew and Delta dust without eroding paint or surfacing. Concrete driveways, pool decks, and brick get full pressure-wash at 1,500–3,000 PSI with a 16–20" rotary surface cleaner for even coverage. One caveat in Antioch's heat: we avoid applying SH mix in the middle of a 100°F afternoon. Chemistry degrades fast at those temps, so we start early or finish before midday when heat is an issue.

We walk the property first — noting substrate types, any loose stucco, cracked caulk, or open penetrations that need to stay dry. Windows and exterior light fixtures get masked. Siding gets a top-down soft-wash pass, working chemistry into shaded north and east walls where mildew tends to hold. Concrete gets a rotary surface-cleaner pass at appropriate PSI, then hand-wanding along curb edges, fence bases, and step risers. Plants and shrubs get a water rinse before and after chemical application. Final walk to catch any missed sections before we leave.

Spring (March through May) is the best window — before summer heat peaks and after winter rains clear the air. Fall (September through October) works well for pre-paint prep before the rains return. If you're planning an exterior paint job, the wash should happen one to two days before the crew arrives — long enough for surfaces to dry, not so long that Delta dust resettles. Avoid scheduling a house wash in the peak heat window (July–August afternoons) if possible.

Square footage of wall surface and linear feet of concrete are the main variables. Pool deck size adds to the flat-concrete scope. Degree of mildew or algae buildup affects dwell time needed. Second-story access on Antioch's taller tract homes requires ladder work or extension wands. Number of fence panels going to stain prep adds time. Whether the wash is standalone or bundled with a paint job affects scheduling and mobilization.

Washed a 2,200 sq ft stucco tract home off Lone Tree Way — full house wash plus driveway and pool deck surface clean ahead of exterior repaint. Cleaned a Hardie-sided home in Antioch's Hillcrest neighborhood, removing two seasons of Delta dust and mildew from the north wall before coating.