Pressure Washing Business — Licensing by State
Six states (Arkansas, Connecticut, Louisiana, Maryland, New Jersey, and — for large projects — California) require a Home Improvement Contractor or specialty license for pressure-washing work above certain dollar thresholds. The rest treat pressure washing as regular business activity requiring only a local business license.
State-by-state at a glance
5 of 50 require state license
Also:
States requiring a state-level license or registration
Arkansas
Residential jobs over $2,000 require a Home Improvement Contractor license through the Arkansas Contractors Licensing Board. Larger jobs may require a commercial license.
Agency: Arkansas Contractors Licensing Board
Official state pageFee
$100
Renewal: 1 year
Connecticut
Home Improvement Contractor registration required through Connecticut Department of Consumer Protection for residential work over $200.
Agency: Connecticut Department of Consumer Protection
Official state pageFee
$220
Renewal: 1 year
Louisiana
Residential jobs over $7,500 (labor + materials) require a Louisiana State Licensing Board for Contractors (LSLBC) Home Improvement Contractor registration. Commercial jobs over $50,000 require a full commercial license.
Agency: Louisiana State Licensing Board for Contractors
Official state pageFee
$100
Renewal: 1 year
Maryland
Residential jobs may require a Home Improvement Commission (MHIC) license depending on the scope. Roof and siding cleaning generally requires it; concrete or driveway cleaning generally does not.
Agency: Maryland Home Improvement Commission (MHIC)
Official state pageFee
$250
Renewal: 2 years
New Jersey
Home Improvement Contractor registration required through New Jersey Division of Consumer Affairs for residential work over $500.
Agency: New Jersey Division of Consumer Affairs — Home Improvement
Official state pageFee
$90
Renewal: 1 year
States without state-level licensing
These states don't require a locksmith-specific state license, but your city or county may still require a business license, permit, or bond. Always check with your local occupational license office.
Alabama
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Alaska
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Arizona
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
California
No state occupational license for pressure washing itself, but California requires a Contractors State License Board (CSLB) C-61/D-38 specialty license for construction cleanup work. Most residential exterior cleaning does NOT trigger this. Wastewater discharge to storm drains is strictly enforced by the State Water Resources Control Board.
Colorado
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Delaware
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Florida
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Georgia
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Hawaii
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Idaho
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Illinois
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Indiana
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Iowa
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Kansas
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Kentucky
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Maine
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Massachusetts
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Michigan
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Minnesota
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Mississippi
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Missouri
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Montana
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Nebraska
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Nevada
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
New Hampshire
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
New Mexico
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
New York
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
North Carolina
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
North Dakota
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Ohio
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Oklahoma
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Oregon
No state occupational license for pressure washing itself. Oregon CCB registration is required for construction-related pressure washing. Wastewater capture required in most cities.
Pennsylvania
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Rhode Island
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
South Carolina
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
South Dakota
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Tennessee
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Texas
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Utah
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Vermont
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Virginia
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Washington
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
West Virginia
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Wisconsin
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Wyoming
No state-level license required. City or county business license typically required. Consult local wastewater rules; some jurisdictions require capture for jobs that use degreasers or chemicals.
Federal: No federal license. EPA regulates wastewater discharge for chemical-heavy jobs.
Licensing information last verified 2025-01. Requirements change — always confirm on the agency site before applying. This is not legal advice.