PSC H345: Inspection – Plumbing, Heating, and Waste Disposal Equipment
H345 is the product and service code (PSC) federal agencies use for “Inspection – Plumbing, Heating, and Waste Disposal Equipment”, in the “Inspection Services” 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
- $1.3 million
- Share of contract dollars to small businesses, since FY2024
- 81%
Open count as of Oct 28, 2026, 5:43 PM ET. The search counts live, so its total can differ by a notice or two.
Open PSC H345 contracts with 2+ days to respond
- White City, Oregon, Boiler Inspection Services Solicitation Base Year + Four Option Years (offers are now due on 11/13/2026)
✦ Only service-disabled veteran-owned small businesses (SDVOSBs) can bid on Solicitation 36C26026Q0977, and the contracting officer says not to submit anything until the…
Due in 16 daysNov 13, 2026, 5:00 PM PSTThe AI summary flags this date. Check SAM.gov.
Where H345 sits in the PSC Manual
- Category: Service
- Group H: Quality Control, Test, Inspection
- Group H3: Inspection Services
- Code H345: Inspection – Plumbing, Heating, and Waste Disposal Equipment
NAICS codes used with PSC H345
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with H345 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC H345 |
|---|---|---|---|
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | $1.3 million | — |
| 562112 | Hazardous Waste Collection | $1.2 million | — |
| 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | $317,559 | — |
| 561210 | Facilities Support Services | $294,649 | 1 |
| 541330 | Engineering Services | $214,055 | — |
| 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $192,826 | — |
Open contracts under each code, with any PSC: NAICS 238220 · NAICS 562112 · NAICS 333414 · NAICS 561210 · NAICS 541330 · NAICS 811310
Who buys under PSC H345
Agencies with the most contract dollars under H345 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Department of Veterans Affairs | $1.6 million |
| Forest Service | $1.4 million |
| Department of State | $453,713 |
| National Park Service | $339,022 |
| U.S. Coast Guard | $212,561 |
| Department of the Army | $204,868 |
| Federal Aviation Administration | $132,564 |
| Department of the Air Force | $71,027 |
Federal spending under PSC H345 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $2.3 million |
| FY2025 | $1.3 million |
| FY2026 (incomplete) | $1.1 million |
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 H345 contracts
| Company | Obligated, last 3 years |
|---|---|
| Sure Drain, LLC | $1.4 million |
| Caldaia Controls LLC | $437,319 |
| The Cleaver-Brooks Company, Inc. | $317,559 |
| Veterans Fire and Life Safety Corporation | $157,500 |
| Green and Sustainable Services, LLC | $148,878 |
| Sanitrol Septic Services, L.L.C. | $118,860 |
| Cawley Environmental Services Inc | $117,600 |
| Hammel Green & Abrahamson Inc | $106,600 |
| Wireless Network Group, Inc. | $100,944 |
| Venergy Group LLC | $99,577 |
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 H345 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:
- 238220 Plumbing, Heating, and Air-Conditioning Contractors: 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
- 333414 Heating Equipment (except Warm Air Furnaces) Manufacturing: who won recently · large primes that subcontract
Related PSC codes
- H310 Inspection – Weapons
- H311 Inspection – Nuclear Ordnance
- H312 Inspection – Fire Control Equipment
- H313 Inspection – Ammunition and Explosives
- H314 Inspection – Guided Missiles
- H315 Inspection – Aircraft and Airframe Structural Components
- H316 Inspection – Aircraft Components and Accessories
- H317 Inspection – Aircraft Launching, Landing, and Ground Handling Equipment
- H318 Inspection – Space Vehicles
- H319 Inspection – Ships, Small Craft, Pontoons, and Floating Docks
Frequently asked questions
What is PSC H345?
H345 is the service code in the federal Product and Service Code (PSC) Manual named “Inspection – Plumbing, Heating, and Waste Disposal Equipment”, under H (Quality Control, Test, Inspection) and H3 (Inspection Services). 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 H345?
Most federal contract dollars under PSC H345 go with NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), 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 H345?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 1 open notice uses PSC H345 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.