Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, July 22 at 2:00 PM EDT

Register Free →
logo
Get CLEATUSFree Trial
← Back to NAICS Codes
NAICS Code· 238220

Plumbing, Heating, and Air-Conditioning Contractors

This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. Illustrative Examples: Cooling tower installation Heating, ventilation, and air-conditioning (HVAC) contractors Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation Lawn sprinkler system installation Fire sprinkler system installation Mechanical contractors Fireplace, natural gas, installation Refrigeration system (e.g., commercial, industrial, scientific) installation Furnace installation Sewer hookup and connection, building Cross-References. Establishments primarily engaged in--Show more

NAICS 238220 – Plumbing, Heating, and Air-Conditioning Contractors encompasses the installation, maintenance, and repair of mechanical systems that regulate indoor environmental conditions, including hydronic and forced-air heating, ventilation, and air conditioning (HVAC), domestic and industrial plumbing, and related piping, ductwork, and controls. These contractors operate as specialized trades within the broader construction ecosystem, often serving as subcontractors to general contractors or as prime contractors on facility modernization, new construction, and life-cycle maintenance projects.

2.9K
Active Contracts
$1.4B
Total Obligations (12mo)
3.1K
Awarded Contracts (12mo)
1.6K
Contractors Awarded (12mo)
-37.5%
YoY Growth

Awarded Contractors

Companies that have received federal awards classified under NAICS 238220.

Loading
Dotted
NAICS 238220 FAQ

Frequently Asked Questions

NAICS code 238220 covers Plumbing, Heating, and Air-Conditioning Contractors. This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. Illustrative Examples: Cooling tower installation Heating, ventilation, and air-conditioning (HVAC) contractors Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation Lawn sprinkler system installation Fire sprinkler system installation Mechanical contractors Fireplace, natural gas, installation Refrigeration system (e.g., commercial, industrial, scientific) installation Furnace installation Sewer hookup and connection, building Cross-References. Establishments primarily engaged in--

Recently Posted in Plumbing, Heating, and Air-Conditioning Contractors

NAICS: 238220
New
SLED
Optional Upgrades and Technology Integration ServicesThe contract calls for the installation and integration of optional technology upgrades on school buses, including GPS tracking systems, onboard video cameras, Wi-Fi connectivity, wheelchair lifts, and telematics platforms. These enhancements are intended to improve student safety, operational efficiency, and accessibility, with all equipment requiring seamless integration into existing bus infrastructure. Vendors must demonstrate technical expertise in deploying these systems, ensuring compatibility, reliability, and compliance with industry standards for educational transportation environments. This is a subcontract under the Local Government Purchasing Cooperative d/b/a BuyBoard, governed by NAICS code 238220 for electrical and wiring installations, and is open for proposal submissions with both the posting and response deadline set for July 30, 2026. The work is to be performed across Texas, though specific locations are not detailed, and participation is facilitated through the BuyBoard procurement portal. Contractors are expected to provide comprehensive support throughout implementation, including training, documentation, and ongoing system maintenance as part of their service delivery.
The Local Government Purchasing Cooperative d/b/a BuyBoard

POSTED

in 16 days

DEADLINE

in 16 days
View Details
NAICS: 238220
New
SLED
Plumbing and Piping System InstallationThe contract pertains to the installation and modification of plumbing and piping systems encompassing water supply, drainage, and gas lines, specifically for a project under the Department of Administrative Services in Iowa. The work is designated as a subcontract with a NAICS code of 238220, indicating it falls under plumbing, heating, and air-conditioning contractors. Performance of the work is required in Des Moines, Iowa, and interested parties must submit responses by the deadline of July 29, 2026, at 7:00 PM. The solicitation was posted on July 12, 2026, and further details and submission instructions can be accessed via the provided online link. All activities must comply with applicable codes and standards for plumbing systems in the designated location.
Department of Administrative Services

POSTED

1 day ago

DEADLINE

in 16 days
View Details
NAICS: 238220
New
Federal
Plumbing and Piping Systems InstallationThe contract titled Plumbing and Piping Systems Installation pertains to the comprehensive installation of plumbing systems including water supply, drainage, waste, and vent piping for a project under the International Boundary and Water Commission: Us-Mexico. The solicitation, posted on July 11, 2026, has a response deadline of July 31, 2026, at 9:00 PM and is categorized as a subcontract. The North American Industry Classification System code 238220 applies, indicating work in plumbing, heating, and air-conditioning contracting. The place of performance is designated with a zip code of 78570, though specific city and state details are not provided. The contract does not specify a set-aside type or agency office address, and no point of contact information is listed. Interested parties must submit responses through the provided SAM.gov link prior to the deadline.
Internat Boundary And Water Commission

POSTED

3 days ago

DEADLINE

in 18 days
View Details
NAICS: 238220
New
Federal
REPLACE B3408 CHILLER, JBPHH-HIThis solicitation, identified as W50SLF-26-R-A0010001, is a combined synopsis and request for proposal for the replacement of a 160 nominal ton rotary screw water chiller at Building 3392 on Joint Base Pearl Harbor-Hickam, Hawaii, under project code KNMD 262002. The work includes the removal of the existing chiller, isolation and recovery of chilled water, proper disposal of wastewater, replacement of isolation valves and the primary water pump, and full integration into the existing direct digital control system with necessary testing, adjusting, and balancing. The contract is set aside entirely for small business concerns under NAICS code 238220, and the period of performance spans 330 days to accommodate manufacturing and delivery lead times, with performance beginning on the date of award. All proposals must be submitted electronically via email to Cezar Y. de Veas by 3:30 PM Hawaii Standard Time on July 22, 2026, and must include a signed SF-1449, vendor information including CAGE and UEI codes, socio-economic status, completed Work Experience Form, and detailed technical capability documentation demonstrating compliance with technical requirements. The Government will evaluate offers without discussions and will award a firm fixed price contract to the most advantageous offer based on a best value determination, considering price at 50% and the combined technical capability and work experience equally weighted at the remaining 50%. Offerors must maintain current and accurate representations in SAM.gov, comply with all applicable FAR and DFARS clauses including restrictions on subcontractor sales, prohibitions on inverted corporations, sustainable products, and antiterrorism training, and adhere to MIL-STD-130 and MIL-STD-129 for identification and shipment marking. A mandatory site visit is scheduled for July 15, 2026, requiring advance coordination for base access with designated points of contact. All work must comply with local, state, and federal safety standards including 29 CFR 1910/1926 and 40 CFR Part 61, Subpart A for hazardous materials, operate within designated work hours, and ensure site protection against theft and vandalism. Payment will be processed electronically via EFT through WAWF upon invoice submission with required pre-approval, and the final payment requires a release of claims. The contractor must possess valid state certifications to operate as
W7M4 Uspfo Activity Hiang 154

POSTED

3 days ago

DEADLINE

in 9 days
View Details
NAICS: 238220
New
Canada
Plumbing and Piping Systems InstallationThe contract involves the installation of comprehensive plumbing and piping systems for buildings or facilities under the Royal Canadian Mounted Police, representing the Government of Canada. The scope includes the full range of plumbing work necessary for water supply, drainage, and sanitary piping, ensuring compliance with applicable standards for safe and functional building systems. This is a subcontract opportunity classified under NAICS code 238220 and is open for bids until July 31, 2026, with work performance focused in British Columbia. The solicitation was posted on July 11, 2026, and interested parties must submit responses prior to the specified deadline to be considered for award.
Royal Canadian Mounted Police

POSTED

3 days ago

DEADLINE

in 18 days
View Details
NAICS: 238220
New
Canada
Doc5778918927 - (NOI) Fire Protection System Inspection and Repair ServicesTransLink, the South Coast British Columbia Transportation Authority, has issued a solicitation for Fire Protection System Inspection and Repair Services under reference number Doc5778918927 and solicitation number BC231906. The notice was posted on July 11, 2026, with proposals due by July 15, 2026, at 6:00 PM. Respondents are required to actively monitor the provided Ariba portal link for updates, including information sessions, site visits, addenda, and clarifications, as failure to do so may result in non-compliance. All inquiries must be submitted strictly through the instructions outlined in the Ariba posting. The contract is categorized as a federal solicitation, though no NAICS code or set-aside details are provided. The agency, operating under the Government of Canada, does not disclose budgetary information. The primary point of contact for procurement matters is Patrick L, reachable via email at procurement@translink.ca. The place of performance and office address details are not specified, but work is expected to occur within the South Coast British Columbia region.
TransLink(South Coast British Columbia Transportation Authority)

POSTED

3 days ago

DEADLINE

in 1 day
View Details
NAICS: 238220
New
SLED
AST Sensor and Level Float Replacement ServicesThe contract seeks qualified providers to diagnose, remove, and replace failed sensors and level floats on aboveground storage tanks, encompassing the full lifecycle of procurement, installation, calibration, and comprehensive documentation. This subcontract, posted by the California Department of General Services, requires technical expertise in handling AST systems and adherence to precise operational standards to ensure system reliability and regulatory compliance. All work must be performed at the designated place of performance in Sacramento, California, with full accountability for timely delivery and quality assurance throughout each phase of service. Submissions are due by July 24, 2026, and the solicitation falls under NAICS code 238220, which classifies it within the Electrical and Other Construction Installation Services category. While no set-aside status or specific organization type is indicated, the contract is open to eligible subcontractors capable of meeting the technical and procedural demands of the scope. Interested parties must navigate the portal linked via the California eProcurement system to access full details and submit proposals before the deadline.
California Department of General Services

POSTED

3 days ago

DEADLINE

in 11 days
View Details
NAICS: 238220
New
SLED
Monthly Preventive Maintenance for Aboveground Storage TanksThe contract is for monthly preventive maintenance services on aboveground storage tanks, encompassing routine inspection, testing, and servicing activities critical to operational safety and regulatory compliance. Key tasks include leak testing, cathodic protection system evaluations, and comprehensive recordkeeping to ensure adherence to environmental and safety standards. The work is subcontracted under NAICS code 238220 and is managed by the California Department of General Services, with performance required in Sacramento. The solicitation was posted on July 10, 2026, and responses are due by July 24, 2026, indicating a short bid window for qualified providers to submit proposals for this ongoing maintenance requirement.
California Department of General Services

POSTED

3 days ago

DEADLINE

in 11 days
View Details
NAICS: 238220
New
SLED
AST Piping and Fitting Replacement ServicesThe contract involves the removal and replacement of corroded or damaged piping and fittings within Aboveground Storage Tank systems, requiring skilled work in cutting, welding, pressure testing, and thorough documentation to ensure system integrity and compliance with safety standards. All work must be performed to industry best practices with an emphasis on preventing leaks, minimizing downtime, and maintaining operational safety throughout the replacement process. The project is tied to AST systems located in Sacramento, California, and the services are being procured as a subcontract by the California Department of General Services. Interested parties must submit responses by the deadline of July 24, 2026, at 10:00 PM Pacific Time, with the NAICS code 238220 indicating the work falls under plumbing, heating, and air-conditioning contracting. There is no specified set-aside designation, and all qualified subcontractors are eligible to respond.
California Department of General Services

POSTED

3 days ago

DEADLINE

in 11 days
View Details
NAICS: 238220
New
SLED
HVAC System InstallationThe contract involves the supply and installation of heating, ventilation, and air conditioning systems, encompassing ductwork, chillers, and rooftop units for a project under the Department of Transportation in Hawaii. Work under this subcontract is expected to meet technical specifications for full system integration, ensuring efficient climate control across designated facilities. The solicitation was posted on July 10, 2026, with responses due by August 14, 2026, and is classified under NAICS code 238220 for HVAC installation services. Performance location is specified as Hawaii, though no precise address or point of contact is provided in the available details. Interested parties must submit proposals before the deadline to be considered for award.
Department of Transportation

POSTED

3 days ago

DEADLINE

in about 1 month
View Details
NAICS: 238220
New
SLED
Plumbing and Piping Systems InstallationThe contract seeks a subcontractor to install sanitary, potable water, and drainage piping systems, along with gas lines and fixture rough-ins, for a project managed by the Hawaii office of the Department of Transportation. The work involves comprehensive plumbing infrastructure to support building or facility operations, requiring adherence to technical specifications for all piping systems including proper sizing, material quality, and connection protocols. The solicitation is open as of July 10, 2026, with responses due by August 14, 2026, and is classified under NAICS code 238220 for plumbing, heating, and air-conditioning contractors. The precise location of performance is not specified, and no set-aside provisions are indicated, meaning any qualified subcontractor may respond. Interested parties must submit proposals through the provided electronic portal before the deadline.
Department of Transportation

POSTED

3 days ago

DEADLINE

in about 1 month
View Details
NAICS: 238220
New
SLED
Mechanical System Remediation & Flushing ServicesThe contract seeks contractors to perform physical and chemical remediation of water systems for the California Department of Veterans Affairs, specifically targeting facilities in Ventura. Services include hyperchlorination, thermal disinfection, flushing, and installation of filtration systems to ensure water quality and compliance with health and safety standards. The work requires technical expertise in water system maintenance and remediation, with all tasks aimed at eliminating microbial contamination and restoring system integrity. The opportunity is classified as a subcontract under NAICS code 238220, with a submission deadline of July 28, 2026, and was posted on July 10, 2026. Performance will be localized to Ventura, though no specific address or point of contact is provided. There is no set-aside designation listed, and the contract is open to eligible subcontractors responding to the solicitation through the CalE procure portal. All work must comply with applicable state and federal regulations governing water system remediation.
California Department of Veterans Affairs

POSTED

3 days ago

DEADLINE

in 14 days
View Details

Win Contracts in Plumbing, Heating, and Air-Conditioning Contractors

Get AI-powered intelligence on NAICS 238220 procurement

Real-time contract opportunities for NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 650+ contractors already using CLEATUS