What's the NAICS and SIC code for a window cleaning business?
For a window cleaning business, use NAICS 561720 (Janitorial Services) in the US and SIC 81221 (Window cleaning services) in the UK.
United States, NAICS 2022
561720 Janitorial Services
Janitorial Services, where Census indexes window cleaning services.
SBA small business limit: $22 million average annual receipts.
United Kingdom, SIC 2007
81221 Window cleaning services
Window cleaning services.
Use this code when you register with Companies House or file your confirmation statement.
When a different code fits better
These are the codes most often confused with the main answer. Pick by the activity that earns most of your revenue.
| Code | Title | Use it if |
|---|---|---|
| SIC 81210 | General cleaning of buildings | you mainly do general building cleaning |
Good to know
The UK has a separate window cleaning code; the US does not.
You can list more than one code. Companies House accepts up to four SIC codes, and SAM.gov lets you add several NAICS codes, with one marked as primary.
What the code affects
- SBA programs and federal contracts: your NAICS code sets the size limit you must stay under to count as small. Check your size.
- SAM.gov registration: contracting officers search by NAICS, so list every code you can deliver work under.
- Companies House: your SIC code appears on the public register and in your confirmation statement.
Related business types
Codes checked against the US Census 2022 NAICS index and the ONS UK SIC 2007 index. Information only; confirm with the agency you file with.