Exterior Pressure Washing in Ontario, CA

K Steam Cleaning Services Inc. delivers professional exterior pressure washing to homes and businesses in Ontario and the surrounding Inland Empire. If your stucco walls, concrete driveways, brick walkways, or building siding have been collecting dust, grime, and pollution from the 10 and 15 freeways, we know how fast those surfaces go from clean to neglected. Call us at (714) 863-2997 to request your honest estimate.

Ontario sits in the heart of the Inland Empire, where warm, dry summers, Santa Ana winds, and heavy commercial traffic create a persistent combination of dust, exhaust, and surface buildup. Stucco and block walls common to residential developments near the Ontario Ranch corridor trap fine particulates in their textured finish. Concrete driveways and brick hardscapes in Rancho Cucamonga, Upland, Chino, and Eastvale face the same challenges after every windy season.


We provide exterior pressure washing for a wide range of surfaces:


  • Stucco walls and painted exterior facades.
  • Concrete driveways, walkways, and parking aprons.
  • Brick and paver surfaces around patios and entryways.
  • Building siding on commercial storefronts and office facades.
  • Parking structures, parking lots, and gas station forecourts.
  • Sidewalks and public-facing retail surfaces.


Each surface may call for a different pressure setting or cleaning method, which is why we assess every job before we start.

Soft Wash vs. Pressure Wash: Which Does Your Property Need?

Not every surface can handle full high-pressure treatment. Painted stucco or older brick may respond better to soft washing, which uses lower pressure combined with eco-friendly cleaning solutions to lift mold, algae, and embedded grime without risking damage. High-pressure washing works well for dense concrete, parking lots, and heavily soiled commercial areas. We evaluate your property and match the right method to the right surface every time.

Our Exterior Pressure Washing Process

  1. We inspect surfaces and identify the appropriate pressure level and cleaning solution for each area.
  2. We pre-treat heavily soiled spots, oil stains, algae, or graffiti with targeted eco-friendly agents.
  3. We apply pressure washing or soft wash treatment based on surface type and condition.
  4. We rinse thoroughly and perform a final walkthrough to confirm results meet our standard.
  5. We leave your property clean, safe, and ready for inspection.

Why Ontario Property Owners Choose Us

Family-owned since 2006, we carry California Contractor's License CSLB#1109891 and serve residential and commercial clients across the Inland Empire with licensed, insured exterior cleaning. Our equipment is professional grade, our methods are eco-conscious, and our team communicates clearly from the first call to the final rinse. Property managers in Ontario, Rancho Cucamonga, Upland, Chino, and Eastvale rely on us for one-time washes and recurring maintenance programs.


We also handle commercial power washing for parking structures, gas stations, storefronts, and industrial properties throughout the region. To see what clients say about our work, check our Google profile.

Request Your Exterior Pressure Washing Estimate!

A cleaner exterior makes a real difference in how your property looks and holds up over time. We are ready to help homes and businesses in Ontario, CA, restore their curb appeal with reliable, professional exterior pressure washing services. Use our contact page to schedule your estimate today!