PSC H945: Other QC/Test/Inspect – Plumbing, Heating, and Waste Disposal Equipment
H945 is the product and service code (PSC) federal agencies use for “Other QC/Test/Inspect – Plumbing, Heating, and Waste Disposal Equipment”, in the “Other Quality, Test, Inspect SVCS” group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 1
- Federal contract spending, FY2025
- $2 million
- Share of contract dollars to small businesses, since FY2024
- 98%
Open count as of Oct 28, 2026, 7:01 PM ET. The search counts live, so its total can differ by a notice or two.
Open PSC H945 contracts with 2+ days to respond
- Boiler Controls Inspection and Testing
Due in 3 daysOct 31, 2026, 5:00 PM EDT
Where H945 sits in the PSC Manual
- Category: Service
- Group H: Quality Control, Test, Inspection
- Group H9: Other Quality, Test, Inspect SVCS
- Code H945: Other QC/Test/Inspect – Plumbing, Heating, and Waste Disposal Equipment
NAICS codes used with PSC H945
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with H945 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC H945 |
|---|---|---|---|
| 561210 | Facilities Support Services | $3.1 million | — |
| 562112 | Hazardous Waste Collection | $586,689 | — |
| 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $439,262 | — |
| 238990 | All Other Specialty Trade Contractors | $188,876 | — |
| 541380 | Testing Laboratories and Services | $137,967 | — |
| 423720 | Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers | $101,775 | — |
| 541350 | Building Inspection Services | — | 1 |
Open contracts under each code, with any PSC: NAICS 561210 · NAICS 562112 · NAICS 811310 · NAICS 238990 · NAICS 541380 · NAICS 423720 · NAICS 541350
Who buys under PSC H945
Agencies with the most contract dollars under H945 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Washington Headquarters Services | $3 million |
| Department of Veterans Affairs | $731,882 |
| Animal and Plant Health Inspection Service | $580,800 |
| Department of the Army | $188,876 |
| Federal Prison System / Bureau of Prisons | $113,925 |
| Indian Health Service | $24,848 |
| Department of the Air Force | $22,956 |
| National Park Service | $11,525 |
Federal spending under PSC H945 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $2.1 million |
| FY2025 | $2 million |
| FY2026 (incomplete) | $556,795 |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
Who wins PSC H945 contracts
| Company | Obligated, last 3 years |
|---|---|
| Nelbud Services LLC | $3 million |
| Crystal Clean, LLC | $290,400 |
| Source Environmental Inc | $290,400 |
| Simoneau & Sterling Midwest Corp | $286,007 |
| Armitage Architecture Inc. | $188,876 |
| Caldaia Controls LLC | $137,470 |
| Air Treatment Corporation | $113,925 |
| Industrial Service and Installation, Inc. | $111,600 |
| Health Systems Sciences, LLC | $85,920 |
| Sterileco LLC | $81,700 |
Linked names have a FedReady profile, which shows the NAICS codes a business is registered as small under. Most large companies have none.
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC H945 work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 561210 Facilities Support Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 562112 Hazardous Waste Collection: who won recently · large primes that subcontract
- 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
Related PSC codes
- H910 Other QC/Test/Inspect – Weapons
- H911 Other QC/Test/Inspect – Nuclear Ordnance
- H912 Other QC/Test/Inspect – Fire Control Equipment
- H913 Other QC/Test/Inspect – Ammunition and Explosives
- H914 Other QC/Test/Inspect – Guided Missiles
- H915 Other QC/Test/Inspect – Aircraft and Airframe Structural Components
- H916 Other QC/Test/Inspect – Aircraft Components and Accessories
- H917 Other QC/Test/Inspect – Aircraft Launching, Landing, and Ground Handling Equipment
- H918 Other QC/Test/Inspect – Space Vehicles
- H919 Other QC/Test/Inspect – Ships, Small Craft, Pontoons, and Floating Docks
Frequently asked questions
What is PSC H945?
H945 is the service code in the federal Product and Service Code (PSC) Manual named “Other QC/Test/Inspect – Plumbing, Heating, and Waste Disposal Equipment”, under H (Quality Control, Test, Inspection) and H9 (Other Quality, Test, Inspect SVCS). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC H945?
Most federal contract dollars under PSC H945 go with NAICS 561210 (Facilities Support Services), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC H945?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 1 open notice uses PSC H945 right now. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.