Open Plumbing, Heating, and Air-Conditioning Contractors solicitations
44 open notices under NAICS 238220 as of October 9, 2026, from SAM.gov and DIBBS. Soonest deadlines first. Award notices, sole source intents and closed notices are left out.
Infrared Radiant Heat Maintenance Services
FA4690 28 CONS PKC
Closes Oct 12, 2026Small business set-asideCombined Synopsis/SolicitationZ2DA--657-24-105JB, FCA- Renovate Storage Rooms for VHA Directive 1116(2) and 1761(2) l STL
255-NETWORK CONTRACT OFFICE 15 (36C255) · St. Louis
Closes Oct 9, 2026SDVOSB set-asideSources SoughtJ045--Install Chill Water System Filtration & Steam Condensate Polisher
257-NETWORK CONTRACT OFFICE 17 (36C257) · Dallas, TX
Closes Oct 9, 2026SDVOSB set-asideCombined Synopsis/SolicitationHVAC Maintenance and Inspection at Olmsted Lock and Dam
W072 ENDIST LOUISVILLE · Illinois, IL
Closes Oct 9, 2026Sources SoughtZ--Rosebud Agency HVAC Upgrade
CENTRAL OFFICE
Closes Oct 9, 2026Indian small business set-asideCombined Synopsis/SolicitationCON | Z1DA | REPLACE OR CHILLERS | 580-23-105 | PRESOLICITATION
256-NETWORK CONTRACT OFFICE 16 (36C256) · Houston, TX
Closes Oct 12, 2026SDVOSB set-asidePresolicitationGreen Mountain National Forest Storage tank cleaning and inspection at Hapgood Pond
GREEN MOUNTAIN NATIONAL FOREST · Peru, VT
Closes Oct 20, 2026Small business set-asideSolicitationVA Palo Alto Boiler Plant Services
261-NETWORK CONTRACT OFFICE 21 (36C261) · Palo Alto, CA
Closes Oct 12, 2026Combined Synopsis/SolicitationFMC Devens - Replace Boiler Burners (3) Project 26Z2BF8
FAO · Ayer, MA
Closes Oct 20, 2026Small business set-asideCombined Synopsis/SolicitationFY 2026 Preventive Maintenance Services to the Building Automation System
U.S. EMBASSY LIBREVILLE · Libreville, GABON
Closes Oct 13, 2026Combined Synopsis/SolicitationCON | Z2DA | REPLACE CHILLER 1 B104 | 580-24-111 | PRESOLICITATION
256-NETWORK CONTRACT OFFICE 16 (36C256) · Houston, TX
Closes Oct 13, 2026SDVOSB set-asidePresolicitationJoint Base MDL - Kitchen Exhaust Hood Maintenance
FA4484 87 CONS PK · Joint Base MDL, NJ
Closes Oct 13, 20268(a) set-asideCombined Synopsis/SolicitationMultistack Chillers (Air Cooled), Associated Motor Starters
US EMBASSY MAPUTO · Maputo, MZ-MPM
Closes Oct 14, 2026SolicitationZ1DA--Replace Cast Iron Fittings 676-23-009
252-NETWORK CONTRACT OFFICE 12 (36C252) · Wisconsin, WI
Closes Oct 16, 2026Veteran-owned set-asideSolicitationRemoval and Replacement of existing Culligan water treatment systems located at various facilities on Spesutie Island
W6QK ACC-APG ADELPHI · Aberdeen Proving Ground, MD
Closes Oct 14, 2026Combined Synopsis/SolicitationZ2DA--Bldg. 100 Roof Top AHU-8 Replacement
261-NETWORK CONTRACT OFFICE 21 (36C261) · Palo Alto
Closes Oct 14, 2026SDVOSB set-asidePresolicitationBuilding 450 Fire Suppression System Installation
FA4654 434 CONF LGC · Grissom ARB, IN
Closes Oct 15, 2026Combined Synopsis/SolicitationTroubleshoot & Repair of Portable Chillers Service Requirement
FA3016 502 CONS CL · JBSA Lackland, TX
Closes Oct 15, 2026Small business set-asideSolicitation657-27-107JC, Replace Select Hot Water Heating System
255-NETWORK CONTRACT OFFICE 15 (36C255) · Saint Louis, MO
Closes Oct 16, 2026SDVOSB sole sourceSolicitationJ--GWMP - ARHO BUNKER HVAC
IMR SANTA FE(12100)
Closes Oct 26, 2026SDVOSB set-asideSolicitation16292 Steam Boiler Replacement
FA8222 AFSC PZIE · Hill AFB, UT
Closes Oct 19, 2026Small business set-asideCombined Synopsis/SolicitationForest-Wide HVAC Repairs\Upgrades
PAYETTE NATIONAL FOREST · McCall, ID
Closes Oct 19, 2026Small business set-asideCombined Synopsis/SolicitationIDIQ, JOC FOR PLUMBING, HEATING, AIR CONDITIONING PROJECTS AT MARINE CORPS LOGISTICS BASE BARSTOW, MARINE CORPS AIR-GROUND COMBAT CENTER 29 PALMS, MARINE CORPS MOUNTAIN WARFARE TRAINING CENTER BRIDGEPORT, AND NAVAL AIR WEAPONS STATION CHINA LAKE, CA AOR
NAVFACSYSCOM SOUTHWEST
Closes Oct 20, 2026Small business set-asideSolicitationCooling Water System Repair and Reliability Project
W071 ENDIST OMAHA
Closes Oct 20, 2026PresolicitationCAS Education Heat Pump
USDA FOREST SERVICE-SPOC EAST · Ozark, AR
Closes Oct 20, 2026Small business set-asideCombined Synopsis/SolicitationZ--EROS Removal and replacement of chilled and conden
OFC OF ACQUSITION GRANTS-NATIONAL
Closes Oct 20, 2026Small business set-asideCombined Synopsis/SolicitationW045--Boiler Rental Montrose VAMC
242-NETWORK CONTRACT OFFICE 02 (36C242) · Montrose, NY
Closes Oct 21, 2026Combined Synopsis/SolicitationZ1ND--EL PASO LIFT STATION PIPING REPAIR
257-NETWORK CONTRACT OFFICE 17 (36C257)
Closes Oct 23, 2026SDVOSB set-asideCombined Synopsis/SolicitationReverse Osmosis System Modifications
NETWORK CONTRACT OFFICE 23 (36C263) · Minneapolis, MN
Closes Oct 23, 2026Combined Synopsis/SolicitationHVAC REPAIR JV RESOURCE_JORDAN VALLEY
OREGON STATE OFFICE
Closes Oct 23, 2026Small business set-asideCombined Synopsis/SolicitationDCDO - HVAC Maintenance
FA5270 18 CONS PK · JAPAN
Closes Oct 25, 2026Combined Synopsis/SolicitationZ--SAF FRSP GEOTHERMAL HVAC SJDS
NER SERVICES MABO (43000) · Woodford, VA
Closes Oct 26, 2026Small business set-asideSolicitationNHTIC HEATING COOLING PUMPS 2026
WYOMING STATE OFFICE
Closes Oct 26, 2026Combined Synopsis/SolicitationJ--E21 PRCA HVAC REPLACEMENT
LOWER COLORADO REGIONAL OFFICE
Closes Oct 27, 2026Small business set-asideSolicitationJ041--Trane BAS HVAC Services
NETWORK CONTRACT OFFICE 19 (36C259)
Closes Oct 28, 2026Special NoticeMechanical Services Basic Ordering Agreement (BOA)
BROOKHAVEN NATL LAB -DOE CONTRACTOR · Upton, NY
Closes Oct 30, 2026Small business set-asideSolicitationWPAFB 3rd Air Stream/ B18
USACE · Wright Patterson AFB, Ohio, UNITED STATES
Closes Oct 31, 2026NTX Steam Trap Monitoring
257-NETWORK CONTRACT OFFICE 17 (36C257) · Dallas, TX
Closes Nov 4, 2026SDVOSB set-asideSolicitationRepair Mechanical Systems IDIQ (FY 27-32)
FA8601 AFLCMC PZIO
Closes Nov 12, 2026SolicitationZ1DA--Project 695-24-107 Replace Boilers 4 and 5 Clement J. Zablocki, VA Medical Center 5000 West National Avenue Milwaukee, WI 53295
252-NETWORK CONTRACT OFFICE 12 (36C252)
Closes Nov 18, 2026SDVOSB set-asideSolicitation
4 more open notices. Start a free trial to search all of them with your filters.
How to bid on these
How do I find open federal contracts under NAICS 238220?
Federal buyers post solicitations on SAM.gov, and defence supply orders also appear on DIBBS. This page lists the ones open right now under NAICS 238220, soonest deadline first, and leaves out award notices, sole source intents and notices only existing contract holders can answer.
Do I need a SAM.gov registration to bid?
You need an active SAM.gov registration and a Unique Entity ID before an agency can award you a contract. Registration is free and takes a few weeks the first time, so start it before you find a solicitation you want.
What does a set-aside on a notice mean?
It means only companies of that type may compete. A small business set-aside is limited to companies under the SBA size standard for the NAICS code, and an 8(a), HUBZone, WOSB or SDVOSB set-aside also requires that certification on the date the offer is due.
Can I answer a sources sought or presolicitation notice?
Those take no bid yet, but answering one tells the agency a capable small business exists, which is often how work ends up set aside for small business. Each notice says what to send and by when.
Each notice lists its own due date and an amendment can change it, so check the latest version on SAM.gov before you submit. Browse by agency or see the market numbers.