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NAICS Code· 238220

NAICS 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.

3.7K
Active Contracts
$1.0B
Total Obligations (12mo)
2.9K
Awarded Contracts (12mo)
1.4K
Contractors Awarded (12mo)
2
Median Bidders per Award
-25.1%
YoY Growth

Contract Opportunities

Active solicitations and awarded contracts classified under NAICS 238220 — Plumbing, Heating, and Air-Conditioning Contractors.

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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
Plumbing and Piping Systems InstallationThe contract pertains to the installation of potable water, sanitary waste, and storm drainage systems within Kanawha, West Virginia, under the jurisdiction of the West Virginia Department of Transportation. All work must strictly comply with local building codes and approved design specifications to ensure safety, functionality, and regulatory adherence. This subcontract is classified under NAICS code 238220, which covers plumbing, heating, and air-conditioning contractors, and is targeted for execution by qualified subcontractors. The solicitation was posted on October 20, 2026, with a response deadline set for the same date, indicating a potentially expedited or closed bidding process. The place of performance is specifically identified as Kanawha, though no additional details regarding exact project sites, duration, or point of contact are provided. Bidders are expected to review the full solicitation through the provided UI link to obtain comprehensive requirements and submission instructions.
West Virginia Department of Transportation

POSTED

in about 2 months

DEADLINE

in about 2 months
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NAICS: 238220
New
SLED
HVAC System InstallationThe contract titled HVAC System Installation pertains to the comprehensive installation of heating, ventilation, and air conditioning units along with associated ductwork, refrigerant lines, and control systems. It is categorized as a subcontract under NAICS code 238220 and is sponsored by the West Virginia Department of Transportation, with the place of performance located in Kanawha. The solicitation was posted on October 20, 2026, with the response deadline set for the same date, indicating a same-day submission window. No set-aside type or description is specified, and no point of contact information is provided. The proposal must be submitted via the provided UI link, and all work is expected to be performed in Kanawha, West Virginia, without details on city, state, or zip code for the office address.
West Virginia Department of Transportation

POSTED

in about 2 months

DEADLINE

in about 2 months
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NAICS: 238220
New
SLED
Plumbing and Piping Systems Installation
West Virginia Department of Transportation

POSTED

in 18 days

DEADLINE

in 18 days
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NAICS: 238220
New
SLED
Valves and Fittings Supply and InstallationThe contract involves the supply and installation of valves, tapping tees, fittings, thrust restraints, and associated appurtenances for the relocation of a ductile iron water system, ensuring continuity and integrity of the water infrastructure during construction activities. All materials and components must meet industry standards for durability and performance in municipal water applications, with installation protocols aligned with best practices for seismic and hydraulic stability, particularly around thrust restraint systems to manage pressure changes and prevent pipe movement. Performance is restricted to Calhoun and Orangeburg in South Carolina, with work to be completed under a subcontract arrangement governed by the South Carolina Department of Transportation. The solicitation was posted on September 9, 2026, with a submission deadline set for the same date, indicating an immediate or time-sensitive procurement cycle. The NAICS code 238220 classifies this work as plumbing, heating, and air-conditioning contracting, underscoring the specialized nature of the installation. Contractors must be prepared to meet strict technical specifications for materials and workmanship without formal set-aside provisions, and all proposals must be submitted through the designated online portal to be considered.
SCDOT

POSTED

in 12 days

DEADLINE

in 12 days
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NAICS: 238220
New
SLED
Meter Boxes and Water Metering SystemsThe contract pertains to the supply and installation of meter boxes and associated water metering infrastructure as part of a relocated water system in Calhoun, Orangeburg. It is structured as a subcontract under the NAICS code 238220, which classifies the work within the plumbing, heating, and air-conditioning contracting sector. The project involves providing all necessary components and labor to install metering systems that support the updated water infrastructure, ensuring accurate water usage measurement and system compliance. The solicitation was posted and has the same deadline of September 9, 2026, indicating a closed or immediately active procurement process. The work is being executed for the South Carolina Department of Transportation, suggesting integration with transportation-related infrastructure upgrades. All performance and deliverables are localized to the specified geographic area with no indication of additional set-aside provisions or specific contracting preferences.
SCDOT

POSTED

in 12 days

DEADLINE

in 12 days
View Details
NAICS: 238220
New
SLED
Plumbing and Piping Systems Installation
Massachusetts Department of Transportation

POSTED

in 12 days

DEADLINE

in 12 days
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NAICS: 238220
New
SLED
Temporary Pavement Marking Supply and ApplicationThe contract is for the supply and application of temporary pavement markings using durable, reflective materials that meet Caltrans standards, specifically for use in Madera, California. The work involves installing high-visibility, long-lasting markings to guide traffic during construction or maintenance activities, ensuring safety and compliance with state transportation regulations. All materials and methods must conform to accepted Caltrans specifications for reflectivity, adhesion, and durability under varying weather and traffic conditions. This is a subcontract opportunity under NAICS code 238220, indicating it is categorized within the paving and surfacing specialty trade contractors sector. The posting date and response deadline are both listed as September 3, 2026, suggesting a planned future solicitation. The contract is managed by the California Department of Transportation, with performance located exclusively in Madera. Interested parties must submit proposals through the designated online portal by the specified deadline to be considered for award.
California Department of Transportation

POSTED

in 6 days

DEADLINE

in 6 days
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NAICS: 238220
New
SLED
Plumbing and Piping SystemsThe contract involves the installation of comprehensive plumbing and piping systems for a facility under the California Department of Transportation, specifically focused on water supply, drainage, and gas piping infrastructure. The work is classified under NAICS code 238220, indicating it is a subcontract for plumbing installation services, and the place of performance is located in Kern County, California. The solicitation was posted on September 2, 2026, with the same date serving as the response deadline, suggesting a potential administrative error or an immediate award process. There is no specified set-aside type or organizational details provided, and no point of contact information is available. The contract's official UI link directs to a Caltrans letting page, indicating this project is part of a state transportation infrastructure initiative, though the exact facility or project scope beyond plumbing systems is not detailed in the provided data.
California Department of Transportation

POSTED

in 5 days

DEADLINE

in 5 days
View Details
NAICS: 238220
New
SLED
HVAC System InstallationThe contract pertains to the installation of heating, ventilation, and air conditioning systems encompassing all necessary components such as ductwork, units, and control systems. It is classified as a subcontract under NAICS code 238220 and is associated with the California Department of Transportation, specifically tied to a project located in Kern County. The solicitation was posted and is set to close on the same date, indicating a highly time-sensitive procurement process. Performance of the work is required at a designated site within Kern, and while no set-aside provisions or agency contact details are specified, the contract is accessible through a public link for potential bidders to review further details and submit proposals.
California Department of Transportation

POSTED

in 5 days

DEADLINE

in 5 days
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NAICS: 238220
New
SLED
Plumbing and Piping Systems
Delaware Department of Transportation

POSTED

in 4 days

DEADLINE

in 4 days
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NAICS: 238220
New
SLED
HVAC System Installation
Delaware Department of Transportation

POSTED

in 4 days

DEADLINE

in 4 days
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NAICS: 238220
New
SLED
PLUMBING MAINTENANCE AND REPAIR Amendment #3
Solicitation # CTR016358-A3
This solicitation, identified as Amendment #3 for PLUMBING MAINTENANCE AND REPAIR under solicitation number CTR016358-A3, involves the provision of building maintenance and repair services specifically focused on plumbing system maintenance and repair. The contract is issued by the Ohio Administrative Services agency and is designated for performance within the state of Ohio. This procurement is categorized as a solicitation for SLED organizations, aimed at ensuring the continued operational integrity of plumbing infrastructure through professional maintenance and repair services. Interested parties must submit their responses by the deadline of August 31, 2027. The solicitation was officially posted on September 1, 2026, and is managed by Davis Kirkland, who serves as the primary contract responsible point of contact. Detailed information regarding the procurement process and official documentation can be accessed through the OhioBuys portal. This amendment serves as a formal update to existing requirements for plumbing-related facility services within the state's administrative framework.
Administrative Services

POSTED

in 4 days

DEADLINE

in about 1 year
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