Top DHS plumbing, heating, and air-conditioning contractors contractors
In the 12 months ending Oct 5, 2026, the Department of Homeland Security obligated $30.2M in net prime contract dollars under NAICS 238220, up 140.3% from $12.6M in the preceding 12 months. 166 prime contractors received positive obligations, and 24 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Homeland Security. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DHS contractors for NAICS 238220
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | b3 Construction, Inc | $4.7M | $995K | 15.4% | ▲ 1 |
| 2 | MC Dodd Construction LLC | $3.6M | $0 | 11.6% | New |
| 3 | Oneill Contractors Inc | $2.2M | $0 | 7.3% | New |
| 4 | Amvet Ritz JV LLC | $2.2M | $0 | 7.2% | New |
| 5 | 11 Series Energy, Inc. | $1.9M | $235K | 6.2% | ▲ 8 |
| 6 | Page Contracting Services LLC | $1.5M | $0 | 4.8% | New |
| 7 | Access Communications Group, LLC | $1.1M | $0 | 3.5% | New |
| 8 | Kaser Mechanical LLC | $908K | $0 | 3.0% | New |
| 9 | Hunatek Federal Services, LLC | $787K | $0 | 2.6% | New |
| 10 | Constructive Building Solutions Inc | $740K | $0 | 2.4% | New |
| 11 | FMS Provider LLC | $635K | $156K | 2.1% | ▲ 5 |
| 12 | Crutcho Creek Farms LLC | $613K | $0 | 2.0% | New |
| 13 | Tidewater Mechanical LLC | $449K | $90K | 1.5% | ▲ 21 |
| 14 | Carrier Corporation | $437K | $0 | 1.4% | New |
| 15 | Rencor Inc. | $360K | $1.7M | 1.2% | ▼ 14 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- b3 Construction, Inc$995K → $4.7M (+$3.7M) · now #1
- MC Dodd Construction LLC$0 → $3.6M (+$3.6M) · now #2
- Oneill Contractors Inc$0 → $2.2M (+$2.2M) · now #3
Largest declines
- Rencor Inc.$1.7M → $360K (−$1.4M) · now #15
- Nelcy Construction Corp$750K → $0 (−$750K) · no latest-period obligations
- TR Weniger Inc$645K → −$30K (−$675K) · no latest-period obligations
New to this market
96 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| MC Dodd Construction LLC | Dec 18, 2025 | $3.6M |
| Oneill Contractors Inc | Jan 23, 2026 | $2.2M |
| Amvet Ritz JV LLC | Sep 28, 2026 | $2.2M |
| Page Contracting Services LLC | Sep 9, 2026 | $1.5M |
| Access Communications Group, LLC | Jul 17, 2026 | $1.1M |
| Kaser Mechanical LLC | Sep 21, 2026 | $908K |
| Hunatek Federal Services, LLC | Mar 6, 2026 | $787K |
| Crutcho Creek Farms LLC | Sep 14, 2026 | $613K |
Where the money comes from
Funding sub-agencies within the Department of Homeland Security, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| U.S. Customs and Border Protection | $10.9M | $3.2M | Up $7.6M (236.2%) |
| U.S. Coast Guard | $8.5M | $8.1M | Up $389K (4.8%) |
| Federal Emergency Management Agency | $6.9M | $265K | Up $6.6M (2491.4%) |
| U.S. Citizenship and Immigration Services | $2.2M | $29K | Up $2.2M (7582.8%) |
| U.S. Immigration and Customs Enforcement | $1.1M | $29K | Up $1.1M (3816.2%) |
| U.S. Secret Service | $285K | $414K | Down $129K (31.2%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 70B01C26C00000115 | 11 Series Energy, Inc. FM EPT YST RPL- UPGRADE NEGATIVE AIR PRESSURE SYSTEM | $1.9M | Jan 29, 2027 |
| 47PE5426C0001 | Oneill Contractors Inc SUPPLEMENTAL COOLING SYSTEM, FEDERAL BUILDING, 536 SOUTH CLARK STREET, CHICAGO, ILLINOIS | $2.2M | Jan 30, 2027 |
| 70B03C22P00000508 | A and W Electrical and Refrigeration a/C Inc HVAC PREVENTATIVE MAINTENANCE AND REPAIR SERVICES FOR CBP FACILITIES, SAN JUAN, PUERTO RICO. | $1.2M | Mar 18, 2027 |
| 70FA2026C00000013 | MC Dodd Construction LLC A BUILDING VRF CONDENSER REPLACEMENT AND INTEGRITY TESTING | $2.3M | Mar 22, 2027 |
| 70CMSW26C00000008 | Access Communications Group, LLC THIS AWARD PROVIDES CHILLER REPLACEMENTS FOR THE OFFICE OF ASSET AND FACILITIES MANAGEMENT IN LOS FRESNOS, TEXAS. | $1.1M | Jul 23, 2027 |
| 70B01C26C00000118 | Page Contracting Services LLC FURNISH AND INSTALL TWO (2) 130-TON AIR-COOLED CHILLERS, CORPUS CHRISTI BORDER PATROL STATION. | $1.5M | Sep 30, 2027 |
| 70B01C26C00000119 | b3 Construction, Inc THIS IS A CONTRACT AWARD FOR THE CONTRACTOR TO PERFORM THE WORK SPECIFIED IN THE ATTACHED STATEMENT OF WORK DATED MAY 13,2026. | $4.1M | Sep 30, 2027 |
| 70FA2026C00000024 | Amvet Ritz JV LLC A BUILDING GENERATOR AND E BUILDING VRF CONDENSER FOR NETC | $2.2M | Oct 8, 2027 |
Common questions
Who are the top DHS contractors for NAICS 238220?
In the latest 12 months, b3 Construction, Inc ($4.7M), MC Dodd Construction LLC ($3.6M), Oneill Contractors Inc ($2.2M) received the most DHS obligations for plumbing, heating, and air-conditioning contractors.
How concentrated is this market?
The eight largest primes held 59.1% of positive obligations, and b3 Construction, Inc alone held 15.4%. 96 contractors won their first obligations in this market during the latest 12 months.
Are any large DHS NAICS 238220 contracts ending soon?
8 of the largest awards in this market reach their current end date in the next 18 months. The first is 70B01C26C00000115 (11 Series Energy, Inc., $1.9M obligated), ending Jan 29, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$21.7MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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