Maintenance of Heating and Cooling Plants Government Contracts

PSC Z1NB Service code

Code facts

Spend category
Facilities & Construction Facility Related Services
Contract obligations
$81,770,547 In FY2025

PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.

Market summary

Open opportunities
0 9 notices posted in the last 90 days
Contract awards
78 In the last 12 months
Obligated
$54,333,309 In the last 12 months, net of deobligations

Top buying agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Veterans Affairs $33,919,820
2 National Aeronautics and Space Administration $6,970,625
3 Washington Headquarters Service Department of Defense $4,022,651
4 Department of the Navy Department of Defense $3,754,811
5 Department of State $3,090,956
6 Department of Homeland Security $2,251,898
7 Department of Agriculture $1,132,650
8 Department of Justice $768,592
9 Department of the Army Department of Defense $741,247
10 Department of the Interior $663,091

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Sigo Valiant JV II LLC $22,954,198
2 Energy Systems Group, LLC $6,970,625
3 Qcm, Inc. $4,022,651
4 Capitol United Solutions Inc. $3,672,027
5 RWH Capital LLC $3,169,599
6 Aml-American Made Logistics $3,120,508
7 Lego Construction Co $2,197,140
8 Performanceepc-Greenland JV LLC $1,222,178
9 Caldaia Controls LLC $973,570
10 CPF LLC $930,679

See the full FY2025 ranking of PSC Z1NB contractors, by parent company.

Contract opportunities

No notices under PSC Z1NB are open now. These are the newest.

Notice Posted Due
Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, and Service Calls for NTX VA Cogeneration and Boiler Chiller Plant Award Notice · Veterans Integrated Service Network 17 (VHA) —
Cooling Water System Repair and Reliability Project Pre-Solicitation · ENDIST Omaha (USACE)
DCDO - HVAC Maintenance Solicitation · Pacific Air Forces (USAF)
HVAC repair JV resource_jordan valley Solicitation · Oregon-Washington Region (BLM)
Nhtic heating cooling pumps 2026 Solicitation · Wyoming Region (BLM)
Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, and Service Calls for NTX VA Cogeneration and Boiler Chiller Plant Amendment 0002 Solicitation · Veterans Integrated Service Network 17 (VHA)
HVAC REFURBISHMENT CU-9_NHOTIC for the BLM Vale Di Award Notice · Oregon-Washington Region (BLM) —
HVAC replacement, repair, cleaning, and maintenanc Solicitation · National Park Service
HVAC refurbishment CU-9_nhotic Solicitation · Oregon-Washington Region (BLM)
Replace maintenance HVAC systems Award Notice · National Park Service · 140P8526Q0057 —
Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, Emergency Repairs, and Service Calls for facility the VA Cogeneration and Boiler Chiller Plant Solicitation · Veterans Integrated Service Network 17 (VHA) · 36C25727R0003
PG a/C system repair and recharge. Award Notice · Bureau of Reclamation —
Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, Emergency Repairs, and Service Calls for facility the VA Cogeneration and Boiler Chiller Plant Pre-Solicitation · Veterans Integrated Service Network 17 (VHA) · 36C25727Q0003
CAVE - Urgent Repair of HVAC Award Notice · Midwest Region (NPS) —
Maintenance of HVAC & BMS System Solicitation · US Embassy Nicosia (DOS) · 19CY6026Q0008-A00001
Z1NB--Boiler replacement Award Notice · Veterans Integrated Service Network 6 (VHA) · 36C24626B0020 —
Preventative Maintenance of Embassy Chillers Solicitation · US Embassy Canberra (DOS)
Replace feed water piping at B-136 watervliet arsenal Solicitation · ACC Warren
Update to: 191N6026Q0001-PR15936508 - Answer to Vendor Inquiries Special Notice · Department of State
Maintenance of HVAC & BMS System Solicitation · US Embassy Nicosia (DOS) · 19CY6026Q0008
Preventive Maintenance Service Contract for the Multistack Chiller at the U. S. Consulate General, Chennai, India Solicitation · Department of State
Replace maintenance HVAC systems Solicitation · National Park Service · 140P8526Q0057
Low Voltage Automatic Voltage Regulators Preventive Maintenance services for U. S. Embassy Harare, Zimbabwe Pre-Solicitation · US Embassy Harare (DOS)
Maintenance of HVAC & BMS System Pre-Solicitation · US Embassy Nicosia (DOS) · 19CY6026Q0008 —
Z1NB--Bonham Boiler Plant Testing and Maintenance Award Notice · Veterans Integrated Service Network 17 (VHA) —
Zuni Comprehensive Community Health Center (ZCCHC) Cooling Tower Repair by Replacement Project Solicitation · Indian Health Service · 75H70126R00023
Z1NB--Boiler replacement Solicitation · Veterans Integrated Service Network 6 (VHA) · 36C24626B0020_1
Replace maintenance HVAC systems Pre-Solicitation · National Park Service · 140P8526Q0057
Boilers Preventive Maintenance Services Solicitation · US Embassy Mexico (DOS) · 19MX5326Q0026
Zuni Comprehensive Community Health Center (ZCCHC) Cooling Tower Repair by Replacement Project Pre-Solicitation · Indian Health Service · 75H70126R00023
Z1NB--Boiler replacement Pre-Solicitation · Veterans Integrated Service Network 6 (VHA) · 36C24626B0020
Preventive Maintenance Services for Multistack Modular Water-Cooled Chiller for U. S. Embassy Phnom Penh Solicitation · US Embassy Phnom Penh (DOS)
Z1NB--NEW: Bonham Boiler Plant Testing and Maintenance | 549 | Amendment for Questions Solicitation · Veterans Integrated Service Network 17 (VHA)
Preventative Maintenance at The Pentagon Heating & Refrigeration Plant (PH&RP) Limited / Sole Source Justification · Washington Headquarters Service —
Pmsc kitchen hood fire suppression Solicitation · Department of State
Replace gas boosters Solicitation · Bureau of Prisons · 15B40126Q00000008
Replace condensate tank system Solicitation · Bureau of Prisons · 15B40126Q00000010
Repair Liebert Unit ACU 2-1 in Server Room (Sector New Orleans) Solicitation · Coast Guard
Maca - RE-commission VC HVAC Solicitation · Southeast Region (NPS)
Boiler / Chiller Maintenance Services Award Notice · Veterans Integrated Service Network 17 (VHA) —
Daikin Heating, Ventilation and Air Conditioning (HVAC) Unit Services and Extended Warranty Solicitation · Mission and Installation Contracting Command (AMC)
Boilers Preventive Maintenance Services Pre-Solicitation · US Embassy Mexico (DOS) · 19MX5326Q0026 —
Repair Bldg 136, Heating Plant Building Watervliet Arsenal NY Pre-Solicitation · ENDIST New York (USACE)
Replace condensate tank system Pre-Solicitation · Bureau of Prisons · 15B40126Q00000010
Replace gas boosters Pre-Solicitation · Bureau of Prisons · 15B40126Q00000008
Z1NB-- BOILER PLANT TESTING & CALIBRATION Marion VA Medical Center Marion, IL 62959-1165 Solicitation · Veterans Integrated Service Network 15 (VHA) · 36C25526Q0147-0001
Z1NB-- BOILER PLANT TESTING & CALIBRATION Marion VA Medical Center Marion, IL 62959-1165 Solicitation · Veterans Integrated Service Network 15 (VHA) · 36C25526Q0147
Z1NB--Boiler Replacement Sources Sought Pre-Solicitation · Veterans Integrated Service Network 6 (VHA)
Preventative Maintenance at The Pentagon Heating and Refrigeration Plant (HRP). Solicitation · Washington Headquarters Service
RFQ_19NP4026Q0006_PMSC of Boilers Solicitation · US Embassy Kathmandu (DOS)
Show 40 more

Latest 50 of 291 listed here. See the rest on GovTribe.

Recent contract awards

Award Awarded Obligated
Radio room a/C 15B40126P00000098 · Mechanical Business Holdings LLC · Metropolitan Correctional Center Chicago (BOP) $32,520
Major maintenance & repair HVAC hangar 2 for FY26 cpop S62 70Z08226FCEUM0032 · Lego Construction Co · Coast Guard $2,197,140
Chiller maintenance contract for 1ST QTR FY 2027 15B40127F00000009 · Johnson Controls Building Solutions, LLC · Metropolitan Correctional Center Chicago (BOP) $6,889
Air handler units - refurbishment 36C25026P1114 · Healing Hands Healing Hearts L.L.C. · Veterans Integrated Service Network 10 (VHA) $101,975
Task order for HVAC system components at nhotic for the BLM-vale district office. This task order is issued under… 140L4326F0159 · Diversified Maintenance Systems Inc. · Oregon-Washington Region (BLM) $55,640
HVAC upgrade at usun building 19GE5026P0099 · C.E D.impianti Societa A Responsabilita Limitata · Office of Acquisition Management $589,600
Embassy compound walls US embassy rome 19GE5026P0094 · Brigante Engineering S.R.L. · Office of Acquisition Management $738,067
Final task order for HVAC services for children and youth services (CYS) joint forces command (JFC) brunssum, usag… W912PA26FA025 · Installatiebedrijf Embrechts B.V. · RCO Benelux 409th CSB $90,524
FAC annex - srvc - HVAC/chiller maintenance - 100 totius 19SF7526P0915 · Multi-Net Systems (Pty) LTD · US Embassy Pretoria (DOS) $44,428
TSS HVAC maintenance 140G0326F0145 · Total System Services, Inc. · Office of Acquisitions and Grants (USGS) $21,725

Latest 10 of 78 awarded in the last 12 months listed here. See the rest on GovTribe.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $3,117,428
FY2026 $54,910,259
FY2025 $81,770,547
FY2024 $70,915,863
FY2023 $64,229,357
Rank NAICS code Obligated, FY2026–FY2027 Share
1 236220 Commercial and Institutional Building Construction $26,571,584
2 238220 Plumbing, Heating, and Air-Conditioning Contractors $15,067,816
3 541330 Engineering Services $6,970,625
4 561210 Facilities Support Services $5,142,751
5 221330 Steam and Air-Conditioning Supply $1,422,152
6 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance $537,239
7 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing $532,917
8 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing $356,916
9 334290 Other Communications Equipment Manufacturing $191,569
10 561320 Temporary Help Services $188,761

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 North Carolina $23,044,199
2 Indiana $7,072,600
3 Texas $4,503,810
4 Virginia $4,118,232
5 District of Columbia $3,802,027
6 Alabama $3,063,025
7 Pennsylvania $1,302,778
8 Maryland $1,026,866
9 Illinois $951,620
10 California $486,755
11 Kentucky $433,920
12 Arizona $245,502
13 Oregon $120,884
14 Mississippi $93,859
15 Colorado $86,554
16 Michigan $76,317
17 Ohio $69,663
18 South Dakota $54,168
19 Minnesota $52,089
20 Idaho $43,547
21 Wisconsin $35,861
22 Hawaii $35,171
23 West Virginia $35,000
24 New Mexico $28,881
25 Massachusetts $28,709
26 Arkansas $20,800
27 New Jersey $20,112
28 Louisiana $14,150
29 Florida $12,374
30 Utah $5,915
31 Montana $5,000
32 Nebraska $4,845
33 Maine $2,850
Show all 33

Shares are of everything obligated under PSC Z1NB in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Quick answers

What is PSC Z1NB?

PSC Z1NB is Maintenance of Heating and Cooling Plants, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.

How many government contracts for maintenance of heating and cooling plants are there?

9 notices under PSC Z1NB were posted in the last 90 days, and none are open now. Federal agencies awarded 78 contracts under PSC Z1NB in the last 12 months, obligating $54,333,309.

How much do federal agencies spend under PSC Z1NB?

Federal contracts under PSC Z1NB obligated $81,770,547 in fiscal year 2025 and $274,943,453 in fiscal years 2023 through 2027.

Who are the largest contractors under PSC Z1NB?

The contractors with the most obligated under PSC Z1NB in fiscal years 2026 and 2027 are Sigo Valiant JV II LLC ($22,954,198); Energy Systems Group, LLC ($6,970,625); and Qcm, Inc. ($4,022,651).

Which agencies buy the most under PSC Z1NB?

The agencies that obligated the most under PSC Z1NB in fiscal years 2026 and 2027 are Department of Veterans Affairs ($33,919,820), National Aeronautics and Space Administration ($6,970,625) and Washington Headquarters Service ($4,022,651).

Which NAICS codes are used with PSC Z1NB?

The NAICS codes with the most obligated under PSC Z1NB in fiscal years 2026 and 2027 are 236220 Commercial and Institutional Building Construction; 238220 Plumbing, Heating, and Air-Conditioning Contractors; and 541330 Engineering Services.

Where is the work under PSC Z1NB performed?

By place of performance, the states with the most contract obligations under PSC Z1NB over the last 12 months are North Carolina ($23,044,199), Indiana ($7,072,600) and Texas ($4,503,810).

What is the latest contract opportunity under PSC Z1NB?

The latest contract opportunity under PSC Z1NB is Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, and Service Calls for NTX VA Cogeneration and Boiler Chiller Plant, award notice from Veterans Integrated Service Network 17 (VHA), posted October 19, 2026.

On GovTribe

See everything under PSC Z1NB

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