What's the NAICS code for pool service?
Pool cleaning and maintenance is 561790, Other Services to Buildings and Dwellings. The Census index lists it as "swimming pool cleaning and maintenance services". Building a pool is a different code: 238990 for outdoor pools and 236220 for indoor pools.
The codes, side by side
| Code | What the Census index lists | Small business size limit | New federal contracts and orders, FY2026 | Of those, under $250,000 |
|---|---|---|---|---|
| 561790 Other Services to Buildings and Dwellings | Swimming pool cleaning and maintenance services | $9.0 million | 387 | 364 |
| 238990 All Other Specialty Trade Contractors | Swimming pool, outdoor, construction | $19.0 million | 1,012 | 789 |
| 236220 Commercial and Institutional Building Construction | Indoor swimming pool construction | $45.0 million | 7,445 | 3,896 |
Size limits are average annual revenue over the last five years, from the SBA table. Contract counts are from USAspending.gov, October 2025 to September 2026.
Pool work on federal property is mostly at military bases, which often bundle it into larger facility contracts. Listing 561210 as well helps you see those.
Other codes worth listing
- 561210 Facilities Support Services ($47.0 million): pools run as part of a base or facility operations contract.
- 561730 Landscaping Services ($9.5 million): if you also keep up the grounds around the pool.
Agencies don't always code the same work the same way, so listing every code that fits gets more bids in front of you. Our guide to which NAICS codes to list explains how.
Common questions
What is the NAICS code for pool cleaning?
561790, Other Services to Buildings and Dwellings. Its size limit is $9.0 million in average annual revenue.
What is the NAICS code for pool construction?
238990 (All Other Specialty Trade Contractors) for outdoor pools and 236220 (Commercial and Institutional Building Construction) for indoor pools.
See the open bids under these codes
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Sources
- Census Bureau: 2022 NAICS index
- 13 CFR 121.201: SBA size standards
- USAspending.gov: contract awards, FY2026 (pulled Nov 2, 2026)
How we get our numbers: our sources and methods.