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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.

3.4K
Active Contracts
$1.1B
Total Obligations (12mo)
3.0K
Awarded Contracts (12mo)
1.4K
Contractors Awarded (12mo)
2
Median Bidders per Award
-23.4%
YoY Growth
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
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Industrial Ventilation (Propeller Fans)This subcontract for the New York State Thruway Authority involves the supply and installation of direct drive side wall mounted propeller fans for wastewater treatment plant projects. The scope of work includes the installation and startup of industrial ventilation fans to ensure the delivery of a fully operational ventilation system for prime contractors. The project is categorized under NAICS code 238220 and is scheduled for performance in Cayuga. The contract was posted with a response deadline of October 21, 2026.
New York State Thruway Authority

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NAICS: 238220
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Fiber Optic Cable Installation and TestingThis subcontract for the Georgia Department of Transportation involves the supply, installation, and testing of fiber optic cabling for prime contractors on Department ITS projects. The scope of work specifically requires the installation of single-mode optical fiber adhering to ITU-T G.657.A1, ITU-T G.652.D, and USDA RUS Standard 7 CFR1755 specifications. The contractor is responsible for delivering a certified fiber optic communication backbone, which includes performing Fiber Optic Reel Tests to verify attenuation and continuity using specialized fiber optic testers. The project is categorized under NAICS code 238220 and is designated for performance in Tattnall.
Georgia Department of Transportation

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NAICS: 238220
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Fiber Optic Cabling & TestingThis subcontract for the Georgia Department of Transportation involves the supply and installation of single-mode optical fiber cables for prime contractors on roadway projects located in Gilmer and Pickens. The scope of work includes performing fiber optic reel tests to verify attenuation and continuity in accordance with ITU-T G.652.D and G.657.A1 standards, as well as the splicing and termination of bending-loss insensitive cables. The contractor is responsible for utilizing OTDR testers to deliver a fully installed and tested fiber optic backbone. All deliverables must include certified test results to ensure compliance with technical specifications. This project falls under NAICS code 238220 and is associated with the Georgia Department of Transportation.
Georgia Department of Transportation

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NAICS: 238220
Closed
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PIDC Project 3 - Dorm RTU Replacement and SCADA
Solicitation # 70CMSW26D00000004
The U.S. Immigration and Customs Enforcement (ICE) is soliciting proposals for Project 3 at the Port Isabel Detention Center in Los Fresnos, Texas, to replace and upgrade Rooftop HVAC Units (RTUs) for the Alpha, Bravo, Charlie, and Delta dormitories and to upgrade the SCADA system. The HVAC scope requires high-quality, coastal weather-resistant, and durable equipment that exceeds minimum commercial standards, specifically utilizing corrosion coating on motors and coils. The SCADA component involves upgrading control software for water and wastewater plants and replacing chemical feed pumps in compliance with Texas Commission of Environmental Quality standards. This firm-fixed-price construction task order is set aside for 8(a) Multiple Award Construction Contract (MACC) holders, with an estimated magnitude between 1.2 million and 1.5 million dollars and a period of performance of 365 days from the date of award. Award will be based solely on the lowest total evaluated price, provided the offeror demonstrates a sound technical approach, appropriate design resources, and a robust quality control and safety program. Contractors must provide a one-year warranty for installation and craftsmanship and ensure all personnel are manufacturer-certified and properly licensed. Due to the nature of the facility, strict security protocols are in effect, including mandatory criminal background screenings, prohibitions on weapons and detainee interaction, and restricted cell phone and photography use. Performance is subject to Davis-Bacon wage determinations for Cameron County, Texas, and requires the submission of certified payroll with all electronic payment requests via the Invoice Processing Platform.
Bristol Alliance of Companies

POSTED

about 5 hours ago

CLOSED

about 5 hours ago
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NAICS: 238220
Closed
SLED
Emergency Plumbing and HVAC Services
Solicitation # WMATA-0000010607
The Washington Metropolitan Area Transit Authority is seeking proposals for Emergency Plumbing and HVAC Services under solicitation number WMATA-0000010607. This procurement falls under NAICS code 238220 and is currently in a pending award status. Interested parties should note that the response deadline is June 24, 2026. Lydia Pepper serves as the primary point of contact and Contracting Officer for this requirement.
Washington Metropolitan Area Transit Authority

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about 5 hours ago

CLOSED

4 months ago
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NAICS: 238220
Closed
SLED
New Backflow Prevention Device Testing and Repair
Solicitation # WMATA-0000010839
The Washington Metropolitan Area Transit Authority is seeking a contractor for the testing and repair of new backflow prevention devices. This solicitation, identified by number WMATA-0000010839, is issued by the agency's Virginia-based organization to ensure the proper functioning and maintenance of critical water system components. The procurement process is managed through the WMATA supplier portal, with a response deadline set for September 15, 2026. Interested parties must submit their proposals by this date to be considered for the project.
Washington Metropolitan Area Transit Authority

POSTED

about 5 hours ago

CLOSED

about 1 month ago
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NAICS: 238220
New
WOJC - Multi-Building Plumbing Leak Repair Project
Solicitation # WOJC – Multi-Building Plumbing Leak Repair Project
Education and Training Resources is seeking quotes for a subcontracting opportunity to perform multi-building plumbing leak repairs at the Westover Job Corps Center in Chicopee, Massachusetts. The scope of work includes replacing approximately three linear feet of leaking heat pipe in King Hall, ten linear feet of leaking heat pipe in the Administration Building Wellness Department, and replacing leaking shower P-trap drain pipes in Rooms 123 and 213, as well as a cracked drain pipe in Room 216 of Harris Hall Dormitory. All work must comply with the Massachusetts State Plumbing Code and International Plumbing Code, and contractors must provide a one-year equipment and workmanship warranty. A mandatory site walkthrough is scheduled for October 20, 2026, and all bids must be submitted by October 30, 2026. Qualified bidders must be registered in SAM.gov with a Unique Entity ID and provide a W-9, business licenses, and Massachusetts-specific plumbing credentials. Evaluation is based on a detailed cost breakdown, proposed schedule, and administrative compliance, though the lowest bid does not guarantee an award. Required documentation includes a Vendor Acknowledgement Form, Certificates of Insurance, and, if applicable, FFATA and Anti-Lobbying certifications. The project is subject to federal labor standards, including the Davis-Bacon and Service Contract Acts, requiring the submission of weekly certified payroll reports. Depending on the final contract value, payment and performance bonds may be required for projects exceeding 35,000 dollars.
Westover Job Corps Center

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about 5 hours ago

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NAICS: 238220
New
MI 2026-14 Emergency Heating and Air Conditioning Services
Solicitation # MI 2026-14
Solicitation MI 2026-14 is a request for bids to provide emergency heating, ventilation, and air conditioning (HVAC) services for the Miami Job Corps Center, a student residential training facility in Florida operated by Adams and Associates, Inc. for the U.S. Department of Labor. The period of performance is scheduled from November 1, 2026, to October 31, 2027. This is a small business set-aside opportunity open to various SBA-certified categories, including Veteran-Owned, Service-Disabled Veteran-Owned, Women-Owned, and HUBZone small businesses. Bids are due by October 23, 2026, and must be submitted on company letterhead with a cost breakdown for non-emergency daytime services as well as emergency and weekend rates. Award selection will be based on the most responsible bidder, with cost being a significant factor although not the sole determinant. Mandatory requirements for all vendors include a valid Unique Entity ID (UEI), active SAM.gov registration, and all necessary business and employee licenses for the State of Florida. Contractors must comply with Service Contract Act regulations, specifically Wage Determination No. 2005-2248, and Executive Order 13658, which mandates a minimum wage of $13.65 per hour for covered workers through December 31, 2026. Additionally, vendors must maintain comprehensive general liability insurance of at least $1,000,000 per occurrence, workers compensation, and specific automobile liability coverage. Administrative requirements include payment terms of NET 30 days and the submission of employee time cards for any service incident exceeding $2,500. Because the center is a federally funded facility, it is entitled to GSA pricing. Personnel performing work on-site must adhere to strict security protocols, including searches upon entry and exit, and are prohibited from fraternizing with students or center staff. Required bid documentation includes a Vendor Questionnaire, W9, Authority to Commit, and a list of references for those without prior experience with the center.
Miami Job Corps Center

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NAICS: 238220
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CBP6585 Bldg. 22 HVAC Replacement
Solicitation # CBP6585
Management & Training Corporation (MTC) is seeking bids for a fixed-price, single lump sum subcontract to replace the HVAC system in Building 22 at the San Diego Job Corps Center in Imperial Beach, California. The scope of work includes the removal of existing equipment and the installation of a new 5-ton condenser, furnace, 5-ton evaporator coil, condenser pad, gas flex, shut-off valve, pigtail, fused disconnect, electrical whip, and condensate drain. The contractor is responsible for all labor, materials, permits, and the provision of OSHA-compliant personal protective equipment for workers, students, and staff. Deliverables include a fully operational and tested system, two sets of operation and maintenance manuals, and manufacturer and installer warranties. The estimated price range for this small business set-aside opportunity is between 0 and 25,000 dollars, with bids due by October 28, 2026. To be considered, bidders must conduct a physical site visit, submit a detailed cost breakout, provide proof of insurance, and complete the MTC Supplier Packet, including a W-9 and self-certification. A bid bond of 20 percent is required for bids equal to or greater than 25,000 dollars, and performance and payment bonds of 100 percent are required for the awarded contractor at that same threshold. The project is subject to the Davis-Bacon Act and various Federal Acquisition Regulations, requiring weekly certified payroll and the acquisition of a Unique Entity ID for the awarded contractor. Final acceptance is contingent upon inspection and approval by the San Diego Job Corps Center Facilities and Maintenance Department.
San Diego Job Corps Center

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about 5 hours ago

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in 13 days
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NAICS: 238220
New
MJCC EXHAUST FANS BLD. 1429
Solicitation # mjcc-exhaust-fans-bld-1429
The Muhlenberg Job Corps Center, operated by Insights Training Group LLC, is soliciting fixed-price quotes from qualified HVAC and mechanical contractors to restore the exhaust fan and louver systems in Building 1429, located in Kentucky. The scope of work includes specific repairs for fans number two through seven, such as replacing motors, selector switches, and louver actuators, relocating a thermostat, and installing missing components for fan number five. Additionally, the contractor must perform system-wide replacements of aged thermostats, relays, and actuators, while ensuring all equipment is fully operational and compliant with applicable building codes, OSHA, and EPA regulations. This solicitation is set aside for small businesses, including VOSB, SDVOSB, WOSB, and HUBZone certified entities. Award will be granted to the responsible offeror who is technically acceptable and provides the lowest price. Key requirements for submission by October 30, 2026, include evidence of Kentucky state registration and licensing, proof of bonding capability, and a detailed line-item price quote. The contract mandates adherence to the Davis-Bacon Act, requiring the submission of weekly certified payroll with every invoice. Final payment is contingent upon satisfactory performance and the delivery of lien releases from all subcontractors and suppliers.
Muhlenberg Job Corps Center / Insights Training Group LLC

POSTED

about 5 hours ago

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in 14 days
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NAICS: 238220
New
Furnace Replacement
Solicitation # 26-17
Solicitation 26-17 is a lump sum contract issued by Management & Training Corporation for the Tongue Point Job Corps Center in Astoria, Oregon. The project requires the removal and replacement of furnaces and thermostats in three separate staff houses: Quarters F (3,786 sq/ft, propane), Quarters P (1,100 sq/ft, natural gas), and Quarters Q (2,280 sq/ft, propane). All installed furnaces must include a lifetime warranty on the heat exchanger and a minimum 10-year warranty on parts. The contractor is responsible for all waste disposal and must adhere to all applicable building codes and professional practices. Bids are due by October 21, 2026, and will be evaluated based on overall best value. Applicants must provide three references for comparable projects and a detailed cost breakout on company letterhead. For bids of $25,000 or more, a bid bond of 20% of the base bid is required, and the awarded contractor must provide performance and payment bonds from a surety company with at least an A- rating. The contract is set aside for small businesses and requires the submission of SF 1413 and a Unique Entity ID. Payment is processed via pay applications using AIA G702 and G703 forms, with weekly certified payroll required. Final acceptance is contingent upon a successful punch list inspection and the submission of operation and maintenance manuals, lien releases, and final payroll reports.
Tongue Point Job Corps

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about 5 hours ago

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in 6 days
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NAICS: 238220
New
MJCC HVAC BLD. 1403-04 B HALL
Solicitation # mjcc-hvac-bld-1403-04-b-hall
Insights Training Group LLC, on behalf of the Muhlenberg Job Corps Center in Greenville, Kentucky, is soliciting fixed-price quotes for the installation of two 4-ton twinned split systems in Building 1403-04 B Hall. The scope of work requires the provision of all labor, materials, and supervision to install Trane 17 SEER condensing units rated for R-454B refrigerant, 95% AFUE high-efficiency gas furnaces, matching indoor evaporator coils, and one Honeywell Pro 8000 programmable thermostat with a remote sensor. Additional requirements include the installation of 2-inch filter racks, condensate drain piping, and pumps, with all work adhering to manufacturer specifications, local codes, and fire-rated sealing for all penetrations. The project must be completed within 45 days of award. This is a small business set-aside solicitation open to VOSB, SDVOSB, WOSB, and HUBZone certified entities. To be determined technically acceptable, offerors must be registered and licensed in the State of Kentucky, verified through the SAM portal, and provide a minimum 90-day bid guarantee along with proof of ability to secure performance and payment bonding. Award will be granted to the responsible offeror with a technically acceptable quote and the lowest price. Contractors must comply with Davis-Bacon Act labor standards, requiring the submission of weekly certified payroll and a signed Statement of Compliance with every invoice. Payments are subject to net terms and may be withheld until payroll records are reconciled against the center's daily visitor log. Safety compliance includes adhering to OSHA and EPA regulations, maintaining Material Safety Data Sheets for all products, and keeping a detailed log of chemical applications. Final acceptance is contingent upon a substantial completion walk-through, the resolution of a punch list, and verified zoning and temperature control. Quotes are due by October 30, 2026.
Muhlenberg Job Corps Center / Insights Training Group LLC

POSTED

about 5 hours ago

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in 14 days
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