Data / Federal awards / NAICS 238220 / Department of the Interior
Department of the Interior contracts under NAICS 238220 Plumbing, Heating, and Air-Conditioning Contractors: $95.3 million to 592 recipients (FY2024 to FY2027)
Updated October 6, 2026. Source: USAspending.gov.
Department of the Interior obligated $95.3 million under NAICS 238220, Plumbing, Heating, and Air-Conditioning Contractors, across 1,156 contract awards to 592 named recipients in fiscal years 2024 to 2027. The largest recipients are G1 CONSTRUCTION, INC. ($3.9 million), FOUR WINDS MECHANICAL HTC/AC INC. ($3.7 million), MX CONSTRUCTION, INC. ($3.3 million). 48 opportunities under this code are open on SAM.gov now.
The request: Every federal contract awarded by Department of the Interior under NAICS 238220, with the winner, the value and the period of performance. $10 of work on sign-up, no card.
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- Agency
- Department of the Interior
- NAICS code
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
- Contract awards
- 1,156
- Obligated
- $95.3 million
- Named recipients
- 592
- Small business share of obligations
- 93%
- Full and open competition share
- 37%
- Set aside share
- 81%
- Latest action
- 2026-10-02
Open opportunities in this niche
The same code on SAM.gov, read each morning: 48 opportunities you can still respond to.
Incumbents at this agency
Ranked by dollars obligated in fiscal years 2024 to 2027.
| Recipient | Business size | Awards | Obligated | Share |
|---|---|---|---|---|
| G1 CONSTRUCTION, INC. | Small Business | 1 | $3.9 million | 4.0% |
| FOUR WINDS MECHANICAL HTC/AC INC. | Small Business | 2 | $3.7 million | 3.9% |
| MX CONSTRUCTION, INC. | Small Business | 1 | $3.3 million | 3.5% |
| AXIOM BUILDERS INC | Small Business | 4 | $3.2 million | 3.4% |
| MC2 ENGINEERING AND CONSTRUCTION, P.C. | Small Business | 1 | $2.9 million | 3.0% |
| KAIVA SERVICES, LLC | Small Business | 12 | $2.3 million | 2.4% |
| SEALASKA CONSTRUCTORS LLC | Small Business | 1 | $2.2 million | 2.3% |
| DLJ MANAGEMENT SERVICES, LLC | Small Business | 1 | $2 million | 2.1% |
| HARDY & ASSOCIATES JV | Small Business | 1 | $2 million | 2.1% |
| MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC | Small Business | 1 | $1.6 million | 1.7% |
| MASSILLON CONSTRUCTION AND SUPPLY LLC | Small Business | 3 | $1.6 million | 1.7% |
| TRADE MECHANICAL CONTRACTORS INC | Small Business | 1 | $1.5 million | 1.5% |
| KAIVA-SIGNATURE JV, LLC | Small Business | 4 | $1.4 million | 1.4% |
| HAMILTON PACIFIC CHAMBERLAIN LLC | Small Business | 2 | $1.4 million | 1.4% |
| POLK & ASSOCIATES CONSTRUCTION INC | Small Business | 1 | $1.1 million | 1.2% |
| TRINITY OF UTAH INCORPORATED | Small Business | 1 | $1.1 million | 1.1% |
| TAKOTA FLATS-SEG JV LLC | Small Business | 1 | $999,897 | 1.0% |
| TAYLOR FIRE PROTECTION SERVICES LLC | Small Business | 5 | $981,102 | 1.0% |
| AMERITECH CONTRACTING LLC | Small Business | 1 | $968,274 | 1.0% |
| DS DESIGNS LLC | Small Business | 5 | $957,431 | 1.0% |
| ELEVEN BRAVO GROUP, LLC | Small Business | 12 | $930,628 | 1.0% |
| GUARDIAN CONSTRUCTION, INC. | Small Business | 1 | $913,499 | 1.0% |
| WRX CONTRACTING, LLC | Small Business | 1 | $895,000 | 0.9% |
| ROCK GAP ENGINEERING LLC | Small Business | 2 | $893,354 | 0.9% |
| NODAK ELECTRIC & CONSTRUCTION, INC. | Small Business | 1 | $880,813 | 0.9% |
| LACREEK DEVELOPMENT CORP | Small Business | 4 | $863,500 | 0.9% |
| AGAPE ENCOUNTERS, LLC | Small Business | 8 | $778,695 | 0.8% |
| ALDEVRA LLC | Small Business | 2 | $771,474 | 0.8% |
| JB CONTRACTING INC | Small Business | 3 | $738,971 | 0.8% |
| K&G CONTRACTING SOLUTIONS, INC. | Small Business | 1 | $728,459 | 0.8% |
| SUPERIOR STRUCTURES LLC | Small Business | 1 | $687,000 | 0.7% |
| QA ENGINEERING LLC | Small Business | 2 | $672,480 | 0.7% |
| VEDANT CONSTRUCTION INC | Small Business | 1 | $649,459 | 0.7% |
| REAGENT WORLD, INC. | Small Business | 7 | $645,433 | 0.7% |
| N2EC AIRCON AND HEATING CORPORATION | Other Than Small Business | 3 | $641,353 | 0.7% |
| GRAINGER CONTRACTING AND SERVICES, LLC | Small Business | 7 | $635,644 | 0.7% |
| FIRST AMERICAN FEDERAL CONTRACTING LLC | Small Business | 3 | $630,000 | 0.7% |
| TRANE U.S. INC. | Other Than Small Business | 17 | $600,845 | 0.6% |
| TOLIN MECHANICAL SYSTEMS COMPANY, LLC | Other Than Small Business | 4 | $593,461 | 0.6% |
| ARABIC INTERPRETERS LLC | Small Business | 16 | $550,856 | 0.6% |
| MOOWEEP LLC | Small Business | 9 | $520,586 | 0.5% |
| B2B DIRECT SALES, INC. | Small Business | 9 | $512,555 | 0.5% |
| BAHA CONSTRUCTION INC | Small Business | 3 | $509,153 | 0.5% |
| GRANITE FIRE PROTECTION INC | Small Business | 4 | $499,422 | 0.5% |
| JBA CONSTRUCTION LLC | Small Business | 4 | $493,731 | 0.5% |
| GRANITE GROUP, LLC | Small Business | 4 | $478,219 | 0.5% |
| XENTURIS LLC | Small Business | 6 | $465,225 | 0.5% |
| BRICAN, INC. | Small Business | 1 | $455,585 | 0.5% |
| COPPER MECHANICAL LLC | Small Business | 1 | $451,000 | 0.5% |
| CAPITAL TRADES LLC | Small Business | 1 | $435,807 | 0.5% |
Offices buying
| Sub agency | Awards | Obligated |
|---|---|---|
| National Park Service | 546 | $54.4 million |
| Bureau of Indian Affairs and Bureau of Indian Education | 154 | $12 million |
| Bureau of Land Management | 71 | $9.5 million |
| U.S. Fish and Wildlife Service | 244 | $7.1 million |
| Bureau of Reclamation | 62 | $5.5 million |
| Departmental Offices | 21 | $3.5 million |
| U.S. Geological Survey | 52 | $3.2 million |
| Bureau of Safety and Environmental Enforcement | 6 | $128,992 |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2024 | $38.8 million |
| FY2025 | $26.4 million |
| FY2026 | $30.1 million |
| FY2027 | $0 |
Products and services bought
| Code | Product or service | Awards | Obligated |
|---|---|---|---|
| Z2AA | Repair or Alteration of Office Buildings | 52 | $10.5 million |
| J041 | Maint/repair/rebuild of Equipment- Refrigeration, Air Conditioning, and Air Circulating Equipment | 131 | $10.4 million |
| J045 | Maint/repair/rebuild of Equipment- Plumbing, Heating, and Waste Disposal Equipment | 225 | $8.6 million |
| Z1AZ | Maintenance of Other Administrative Facilities and Service Buildings | 11 | $6.9 million |
| N041 | Installation of Equipment- Refrigeration, Air Conditioning, and Air Circulating Equipment | 62 | $5.9 million |
| N045 | Installation of Equipment- Plumbing, Heating, and Waste Disposal Equipment | 53 | $4.9 million |
| Z2AZ | Repair or Alteration of Other Administrative Facilities and Service Buildings | 48 | $4.4 million |
| 4530 | Fuel Burning Equipment Units | 36 | $3.4 million |
Largest contract awards
| Award ID | Recipient | Agency | Type | NAICS | What it buys | Obligated in window | Award value | Starts | Ends | Place of performance | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 140P8426C0001 | G1 CONSTRUCTION, INC. | Department of the Interior | Definitive Contract | 238220 | REHABILITATE HVAC SYSTEM COMPONENTS AT PARK HEADQUARTERS (HQ) AND NORTH OPERATIONS CENTER (NOC), REDWOOD NATIONAL AND STATE PARKS, DEL NORTE | $3,853,908 | $3,853,908 | September 3, 2026 | July 31, 2027 | Crescent City, CA | usaspending.gov |
| 140L0624C0020 | FOUR WINDS MECHANICAL HTC/AC INC. | Department of the Interior | Definitive Contract | 238220 | FARMINGTON DISTRICT OFFICE HVAC SYSTEM IMPROVEMENTS | $3,621,888 | $3,621,888 | September 9, 2024 | January 21, 2026 | Farmington, NM | usaspending.gov |
| 140P8524C0004 | MX CONSTRUCTION, INC. | Department of the Interior | Definitive Contract | 238220 | REHABILITATE KELSO DEPOT HVAC AND WATER HEATING SYSTEMS, MOJAVE NATIONAL PRESERVE | $3,303,937 | $3,303,937 | August 2, 2024 | September 20, 2025 | Baker, CA | usaspending.gov |
| 140L0625C0012 | AXIOM BUILDERS INC | Department of the Interior | Definitive Contract | 238220 | HVAC CONTROL SYSTEM, OR | $3,099,781 | $3,099,781 | July 28, 2025 | July 6, 2027 | Salem, OR | usaspending.gov |
| 140R6024C0014 | MC2 ENGINEERING AND CONSTRUCTION, P.C. | Department of the Interior | Definitive Contract | 238220 | WYOMING AREA OFFICE HVAC UPGRADE | $2,852,247 | $2,852,247 | July 30, 2024 | July 31, 2026 | Sheridan, WY | usaspending.gov |
| 140A2324C0004 | SEALASKA CONSTRUCTORS LLC | Department of the Interior | Definitive Contract | 238220 | REPLACE BOILER - HINU | $2,174,466 | $2,174,466 | March 25, 2024 | September 30, 2024 | Lawrence, KS | usaspending.gov |
| 140P6026C0011 | DLJ MANAGEMENT SERVICES, LLC | Department of the Interior | Definitive Contract | 238220 | JEFF REPLACE COOLING TOWER AND BOILER | $2,024,048 | $2,024,048 | September 1, 2026 | November 24, 2027 | Saint Louis, MO | usaspending.gov |
| 140A2324C0003 | HARDY & ASSOCIATES JV | Department of the Interior | Definitive Contract | 238220 | INSTALL VRF/HVAC SYSTEM BLDG. 298 DORM | $2,011,931 | $2,011,931 | January 25, 2024 | August 31, 2025 | Tuba City, AZ | usaspending.gov |
| 140P4525C0029 | MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC | Department of the Interior | Definitive Contract | 238220 | 140P4525C0029: REHABILITATE MECHANICAL SYSTEM, STEAMTOWN NATIONAL HISTORIC SITE, SCRANTON, PA | $1,600,392 | $1,600,392 | September 26, 2025 | December 31, 2026 | Scranton, PA | usaspending.gov |
| 140FGA24C0001 | TRADE MECHANICAL CONTRACTORS INC | Department of the Interior | Definitive Contract | 238220 | GAOA - WICHITA MOUNTAINS VISITOR CENTER HVAC REPLACEMENT | $1,454,487 | $1,454,487 | December 6, 2023 | March 31, 2026 | Indiahoma, OK | usaspending.gov |
| 140P2124C0012 | KAIVA SERVICES, LLC | Department of the Interior | Definitive Contract | 238220 | HAFE 243900 REPLACE HVAC SYSTEM | $1,416,011 | $1,416,011 | March 27, 2024 | April 30, 2025 | Harpers Ferry, WV | usaspending.gov |
| 140D0425C0029 | POLK & ASSOCIATES CONSTRUCTION INC | Department of the Interior | Definitive Contract | 238220 | NSWC CRANE B2037 CAL LAB HVAC UPGRADE | $1,105,328 | $1,105,328 | May 5, 2025 | May 4, 2026 | Crane, IN | usaspending.gov |
| 140R1024C0004 | TRINITY OF UTAH INCORPORATED | Department of the Interior | Definitive Contract | 238220 | UPPER SNAKE RIVER FIELD OFFICE HVAC RENOVATION PROJECT | $1,087,337 | $1,087,337 | June 12, 2024 | March 16, 2026 | Heyburn, ID | usaspending.gov |
| 140P3025C0021 | TAKOTA FLATS-SEG JV LLC | Department of the Interior | Definitive Contract | 238220 | NACE - REPAIR FIRE ALARM + SUPPRESSION A | $999,897 | $999,897 | September 26, 2025 | July 31, 2026 | Washington, DC | usaspending.gov |
| 140P4324C0019 | AMERITECH CONTRACTING LLC | Department of the Interior | Definitive Contract | 238220 | SPAR REPLACE/REHABILITATE 5 NATURAL GAS BOILERS | $968,274 | $968,274 | September 23, 2024 | September 30, 2025 | Springfield, MA | usaspending.gov |
| 140P8124C0005 | GUARDIAN CONSTRUCTION, INC. | Department of the Interior | Definitive Contract | 238220 | REPLACE ALAN BIBLE VISITOR CENTER HVAC AND ROOF AT LAKE MEAD NATIONAL RECREATION AREA IN BOULDER CITY, NEVADA. | $913,499 | $913,499 | September 20, 2024 | April 22, 2026 | Boulder City, NV | usaspending.gov |
| 140P6324C0002 | HAMILTON PACIFIC CHAMBERLAIN LLC | Department of the Interior | Definitive Contract | 238220 | THIS CONTRACT IS FOR CONSTRUCTION SERVICES NEEDED TO REPLACE HVAC SYSTEM AT JEWEL CAVE NATIONAL MONUMENT. | $908,221 | $908,221 | February 23, 2024 | May 30, 2025 | Waldorf, MD | usaspending.gov |
| 140P8126C0005 | WRX CONTRACTING, LLC | Department of the Interior | Definitive Contract | 238220 | CONSTRUCTION PROJECT TO BRING TWO NPS LOG CABINS, LOCATED AT THE DELLENBAUGH ADMIN SITE AT GRAND CANYON-PARASHANT NATIONAL MONUMENT, UP TO T | $895,000 | $895,000 | September 21, 2026 | July 20, 2027 | Littlefield, AZ | usaspending.gov |
| 140P9725C0003 | NODAK ELECTRIC & CONSTRUCTION, INC. | Department of the Interior | Definitive Contract | 238220 | REPLACE HVAC MAINT & CURATORIAL BLDGS - SKAGWAY AK | $880,813 | $880,813 | April 10, 2025 | February 27, 2026 | Skagway, AK | usaspending.gov |
| 140P3024C0020 | KAIVA-SIGNATURE JV, LLC | Department of the Interior | Definitive Contract | 238220 | HAFE B55 HVAC EMERGENCY REPAIR/REPLACEMENT | $796,271 | $796,271 | September 26, 2024 | June 12, 2025 | Harpers Ferry, WV | usaspending.gov |
| 140P4325C0034 | K&G CONTRACTING SOLUTIONS, INC. | Department of the Interior | Definitive Contract | 238220 | FREDERICKSBURG & SPOTSYLVANIA NATIONAL MILITARY PARK - INSTALL FIRE SUPPRESSION SYSTEM IN FREDERICKSBURG VISITOR CENTER | $728,459 | $728,459 | September 25, 2025 | October 9, 2026 | Fredericksburg, VA | usaspending.gov |
| 140A2325C0014 | ROCK GAP ENGINEERING LLC | Department of the Interior | Definitive Contract | 238220 | INSTALL DIRECT DIGITAL CONTROLS | $712,980 | $712,980 | September 23, 2025 | August 25, 2026 | Eagle Butte, SD | usaspending.gov |
| 140P4326C0026 | SUPERIOR STRUCTURES LLC | Department of the Interior | Definitive Contract | 238220 | GEORGE WASHINGTON BIRTHPLACE NATIONAL MONUMENT- REPLACE HVAC EQUIPMENT IN THE MEMORIAL HOUSE MUSEUM | $687,000 | $687,000 | August 24, 2026 | February 16, 2027 | Colonial Beach, VA | usaspending.gov |
| 140P4326C0023 | VEDANT CONSTRUCTION INC | Department of the Interior | Definitive Contract | 238220 | LOWELL NATIONAL HISTORICAL PARK - REPLACE COOLING TOWER 1 AND PUMPS | $649,459 | $649,459 | August 21, 2026 | August 11, 2027 | Lowell, MA | usaspending.gov |
| 140P6425C0007 | MASSILLON CONSTRUCTION AND SUPPLY LLC | Department of the Interior | Definitive Contract | 238220 | OTHER CONSTRUCTION, FAN COIL UNIT REPLACEMENT @ FILA | $634,799 | $634,799 | June 16, 2025 | April 10, 2026 | Canton, OH | usaspending.gov |
Public U.S. federal spending data (U.S. Department of the Treasury). Obligations are the contract actions dated in fiscal years 2024 to 2027 of the USAspending.gov award archive of 2026-10-06; a contract's total value is its current value as USAspending reports it, including earlier years. Recipients are matched on their SAM.gov UEI, never on the name, and are shown as the government prints them. Sole proprietorships and opted-out entities count in the totals and are not named. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.