Las Vegas Pressure Washing

What you are actually paying to remove

Valley grime is mineral, not organic. Fine desert dust settles on every flat surface and the July–September monsoon glues it onto driveways and pool decks. The second layer is calcium: tap water here runs about 16 grains per gallon of hardness — “very hard” on the Las Vegas Valley Water District’s own scale — so anywhere spray or irrigation overspray dries, it leaves white scale on decks, glass and block walls.

Scale does not rinse off. Removing it is low-pressure work with an acid or specialty cleaner, not more PSI, and companies quote it differently from plain washing. If white deposits are the problem, say so when you ask for the quote — “pressure washing” alone may not include it.

Most exteriors in the valley are stucco, and stucco is soft. High pressure gouges it and strips the color coat permanently; the standard method is a “soft wash” — low pressure plus a detergent that does the work. If the job includes walls, ask specifically how they treat stucco.

Two questions worth asking before you book

Where does the water go? The valley’s storm drains are separate from the sewer and carry runoff untreated through the Las Vegas Wash back into Lake Mead — the region’s own drinking supply, per the Southern Nevada Water Authority. Sending oily or soapy wash water into the gutter is prohibited, so an established outfit will contain it, recover it, or route it onto landscaping. The answer tells you a lot about how they operate.

Is a license needed? Pressure washing by itself is cleaning work and does not require a Nevada contractor’s license — but jobs often quoted alongside it, like sealing concrete or repainting, do once they reach $1,000 in labor and materials (NRS 624). You can check any license number free at the Nevada State Contractors Board.

Frequently asked questions

Can pressure washing damage stucco or pavers?

Yes. High pressure etches stucco and strips its color coat, and it blasts the joint sand out of pavers. Stucco should be soft washed at low pressure with detergent, and pavers re-sanded if the joints wash out. Ask how the company handles each surface before work starts.

Where is the wash water supposed to go?

Not into the street. Storm drains in the Las Vegas Valley flow untreated into the Las Vegas Wash and on to Lake Mead, so discharging detergent or degreaser runoff to the gutter is prohibited. Companies typically contain the water, recover it with a vacuum berm, or direct it onto landscaping.

Does a pressure washing company need a contractor's license in Nevada?

Not for cleaning alone. A Nevada contractor's license is required when the work crosses into construction - sealing, coating, repairs - at $1,000 or more including labor and materials. For those add-ons, verify the license on the Nevada State Contractors Board site.

How often do driveways and pool decks need washing here?

There is no fixed schedule. The two local drivers are monsoon season, which cements summer dust onto flatwork, and irrigation or pool overspray, which rebuilds calcium scale for as long as the overspray continues. Many homeowners book after the monsoon ends in September; scale keeps returning until the spray pattern is fixed.