Pressure Washing Business Guides

Pressure washing is quick to start and easy to get wrong, because the business lives around the spray: where the water goes, what the chemicals touch, who climbs the ladder, what a crew hour costs and what happens when it rains.

Licensing is local, so make the calls first

Rules depend on where you work and what you sell. Before the first paid job, get written answers from:

• City or county: whether you need a business license, or a permit for mobile washing or door-to-door selling.
• State contractor licensing agency: whether washing, sealing, staining or roof work counts as contracting or home improvement work.
• State revenue department: whether your services are taxable, which differs by state.
• State pesticide regulator: whether applying moss, algae or mildew treatments, or advertising that you kill them, brings in licensing or labeling rules.
• An insurance agent: how a general liability policy treats chemical runoff and damage to the surface you clean, and when your state requires workers' compensation.

A private training or certification course doesn't replace a license your state or city requires. Paint is its own rule: EPA's lead renovation rule covers work that disturbs more than 20 square feet of exterior paint on homes built before 1978, and that work takes a certified firm ¹. How to start a pressure washing business covers registration, the wash water questions to ask, chemicals, roofs, insurance, equipment and startup costs.

Wash water shapes your rig and your price

Wash water carries your solution plus whatever came off the surface: mildew, oil, grease, paint chips. Under EPA's stormwater rules, the cities and counties they cover must prohibit discharges to their storm sewers that aren't entirely stormwater, with listed exceptions ², and the details differ by place and for greasy commercial sites. Before you buy equipment, ask your city or county stormwater program whether wash water may reach a storm drain or go onto landscaping, and where it must go if you have to capture it. The answers decide your recovery gear, your setup time and your prices, and the start guide lists every question to ask.

Chemicals, the wand and the ladder

Three hazards ride on every rig:

• Chemicals. Many soft wash mixes are built on sodium hypochlorite, the active ingredient in bleach. Keep a safety data sheet for every product, label every container, and wear eye protection and chemical-resistant gloves. Bleach mixed with an acid cleaner can release chlorine gas ³, and rust removers and wood brighteners are often acid-based, so give acids and bleach their own buckets, tanks and pumps.
• The wand. Lock the trigger when you aren't spraying, never point it at anyone, and get medical care right away for anyone the stream cuts, even if the wound looks small ⁴.
• Height. Never fire a high-pressure wand from a ladder, because the kickback can throw you off. Look up before raising a ladder or pole: OSHA keeps workers who aren't qualified for electrical work, and conductive objects such as metal ladders, at least 10 feet from energized lines of 50 kV or less ⁵.

Gas engines give off carbon monoxide, and CDC says never to run a gasoline pressure washer in an enclosed space or within 20 feet of a window, door or vent ⁴. Hiring your first pressure washing employee turns these habits into a training plan and covers workers' comp and pay.

Method is part of what you sell

Pressure that cleans concrete can force water behind siding, strip paint, scar wood and knock granules off shingles, so siding and roofs are typically soft washed: solution applied at low pressure, left to work, then rinsed. The Asphalt Roofing Manufacturers Association says never to use a pressure washer on an asphalt shingle roof ⁶.

A customer who asks you to "pressure wash the house" pictures a jet hitting the siding, so name the method for each surface in writing. Before you start, list and photograph what washing won't fix, such as oxidation, stubborn stains and loose paint. How to write a pressure washing estimate covers measuring, methods, the water plan and disclaimers.

The year runs on temperature

Where winters freeze, the cold ends the washing season: rinse water ices walks and steps, and water left in a pump can crack it.

Rain dilutes soft wash mix, wind drifts it onto plants and cars, and hot sun dries it too fast, so put weather rules in writing. The pressure washing seasonal playbook covers each season, off-season work and cash flow.

How customers buy

Homeowners can already see the dirt from the street. What they need is proof of what clean looks like, confidence you won't damage anything and an easy way to book.

• Every job advertises the street. With permission, use before-and-after photos, a yard sign and a note to neighbors; a second house on the street also skips the drive.
• Door hangers go on doors, never in or on mailboxes.
• Door sales can fall under the FTC's Cooling-Off Rule, which may let the buyer cancel.
• The dirt comes back, so a reminder before each customer's season turns one-time jobs into yearly ones.

HOAs, property managers and commercial accounts buy on schedules, through boards and accounts payable, often only after your W-9 and certificate of insurance are on file. How to get more pressure washing customers covers each channel.

The money mechanics

Every price is crew time multiplied by your crew-hour cost, plus chemicals and water by the gallon, fuel, overhead and profit. Three things set this trade's math apart:

• Production rate. Your machine's flow (GPM), your surface cleaner and the surface's condition set your pace, so log your own rates instead of copying a competitor's price per square foot.
• Fixed time per stop. Travel, setup, plant prep and breakdown don't shrink with the job, which is why you need a minimum charge and why bundles pay.
• Recurring commercial work. Price the first clean, which removes months of buildup, separately from maintenance visits.

Example: These numbers are invented. A crew hour costs $100, and every stop carries 1.5 hours of travel, setup and breakdown. A house wash, driveway and gutter faces booked separately carry 4.5 hours of that time; booked together, 1.5. The 3 hours saved are $300 of cost you can share as a bundle discount.

Price to a target margin, not a markup (markup vs margin explains the gap), and build your rates with how to price pressure washing jobs.

Customers are often out while you wash, so set up a card on file or pay link at booking and invoice with photos before you leave. How to invoice pressure washing jobs covers deposits, property manager paperwork and recurring commercial billing.