How to start a pressure washing business
What it costs, what you file, what it earns and what ends most of them. Every number below is cited to where it came from.
Starting a pressure washing business costs $6,000 to $50,000, on figures published by a primary source. The hardest part is wastewater compliance, which most new entrants underestimate.
What it costs to start
$6,000 to $50,000The machine and the rig dominate: residential pressure washers run $1,000 to $3,000 and commercial units $3,000 to $15,000+, while the vehicle and trailer alone account for $5,000 to $30,000.
Source: source
What you have to file
Licensing is set by state, county and city, so this is what the category tends to require rather than a list for where you live. The state pages below carry the filing detail for each of the 50.
- General business licence (city/county)
- Employer Identification Number (EIN) from the IRS
- State sales tax permit (where the service is taxable)
- POTW authorisation, written permission from the local Publicly Owned Treatment Works to discharge wash water to the sanitary sewer
- NPDES permit (required for any direct discharge to surface waters; permits are needed per job site and can take months, so this is generally impractical for mobile operators)
- Permit-to-Install (PTI) for wastewater treatment equipment such as holding tanks or oil/water separators
- Local stormwater / illicit discharge compliance under the municipal MS4 programme
- General liability insurance ($40 to $200 per month typical)
- Commercial auto insurance
- Inland marine / equipment insurance
- Workers' compensation insurance (required once you have employees)
What the margins look like
Contractors are advised to target 20 to 40% profit margins, priced off $0.15-$0.75 per square foot residential and $0.08-$0.40 per square foot commercial, with most setting a $100 to $250 job minimum to cover travel and setup.
Source: source
Whether demand is growing
Not established
Demand tracks home maintenance spending, which Harvard's JCHS puts at $105 billion in 2023 within a US improvement and repair market above $600 billion; published growth estimates for the pressure washing niche itself conflict across secondary sources, so treat any single growth percentage with caution.
How big the market is
There were approximately 32,193 pressure washing businesses in the US in 2024 generating about $1.2 billion in industry revenue and employing roughly 41,799 technicians (IBISWorld data, as reported by Jobber), an average of under $40,000 revenue per business, reflecting how many operators are solo or seasonal.
Source: source
The part that ends most of them
Wastewater compliance, which most new entrants underestimate. Regulators treat pressure-wash runoff as industrial wastewater: you may not let it enter a storm sewer, gutter or parking lot drain, and using biodegradable soap does not exempt it. In practice there are two lawful routes: written POTW permission to discharge to the sanitary sewer, or capturing the water and hauling it for disposal. Seasonality is the other commonly reported difficulty.
Source: source
Before you start
- What it will cost you, since the numbers above are the category and not your version of it
- Sole proprietor, LLC or S corp, what actually differs, with no recommendation
- What your state wants filed, read from the state's own pages
- What you have to sell to break even, which decides whether the margin above matters
- Which way you actually work, if the choice between these is really a choice about you
A different business
Compare all twenty side by side
SideKix, “How to start a pressure washing business”. https://sidekixhq.com/how-to-start-a-pressure-washing-business.html
Questions people ask
How much does it cost to start a pressure washing business?
$6,000 to $50,000. The machine and the rig dominate: residential pressure washers run $1,000 to $3,000 and commercial units $3,000 to $15,000+, while the vehicle and trailer alone account for $5,000 to $30,000.
What licences do you need for a pressure washing business?
Typically: General business licence (city/county); Employer Identification Number (EIN) from the IRS; State sales tax permit (where the service is taxable); POTW authorisation, written permission from the local Publicly Owned Treatment Works to discharge wash water to the sanitary sewer; NPDES permit (required for any direct discharge to surface waters; permits are needed per job site and can take months, so this is generally impractical for mobile operators). Licensing is set by state, county and city, so the exact list depends on where you operate.
What profit margin does a pressure washing business make?
Contractors are advised to target 20 to 40% profit margins, priced off $0.15-$0.75 per square foot residential and $0.08-$0.40 per square foot commercial, with most setting a $100 to $250 job minimum to cover travel and setup.
Is demand for a pressure washing business growing?
Demand tracks home maintenance spending, which Harvard's JCHS puts at $105 billion in 2023 within a US improvement and repair market above $600 billion; published growth estimates for the pressure washing niche itself conflict across secondary sources, so treat any single growth percentage with caution.
What is the hardest part of running a pressure washing business?
Wastewater compliance, which most new entrants underestimate. Regulators treat pressure-wash runoff as industrial wastewater: you may not let it enter a storm sewer, gutter or parking lot drain, and using biodegradable soap does not exempt it. In practice there are two lawful routes: written POTW permission to discharge to the sanitary sewer, or capturing the water and hauling it for disposal. Seasonality is the other commonly reported difficulty.