Stop digging through generic construction portals. IronBid Pro scans SAM.gov, VA VISN networks, USACE districts, and all 50 state/county procurement portals to deliver high-margin NAICS 238220 mechanical, chiller, boiler, and ASME welded piping solicitations to your inbox every morning at 7:00 AM Eastern.
Below are real, verified public-sector mechanical, welded heating pipe, boiler, and chiller solicitations tracked in our daily digest. Every morning at 7:00 AM ET, subscribers receive the direct solicitation PDF links, wage determinations, and a Go/No-Go margin breakdown.
Scope & Trade Requirements: High-pressure steam and hydronic heating system welded pipe repairs inside an active VA Medical Center campus. Requires certified pipe welders qualified under ASME Section IX / ASME B31.1, strict adherence to VA infection control and NFPA 51B hot work permit protocols with dedicated fire watch, and compliance with federal Davis-Bacon prevailing wage determinations ($30.30/hr base + 30% fringe benefit floor before shop burden, rig mobilization, and profit).
Scope & Trade Requirements: Multi-year county-wide commercial chiller plant inspection, teardown, eddy-current tube testing, refrigerant recovery, mechanical piping modifications, and full chiller replacement across county hospitals and facilities. Bidders must hold active California C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), C-38 (Refrigeration), and C-4 (Boiler, Hot-Water Heating and Steam Fitting) licenses and pay California DIR prevailing wages.
Scope & Trade Requirements: Public-works mechanical maintenance, pneumatic/DDC temperature control calibration, hydronic pump/valve replacement, and emergency boiler/chiller repairs at Westchester County facilities. Priced on straight-time, overtime, and emergency call-out hourly labor rates under New York State DOL Article 8 prevailing wage schedules.
Scope & Trade Requirements: VA Network Contracting Office 23 solicitation covering central heating plant mechanical maintenance, steam trap and condensate return piping repairs, burner tuning, and auxiliary HVAC equipment service. Requires SAM.gov active UEI registration and documented hospital/institutional mechanical past performance.
Also live in this week's 238220 feed: Milwaukee VA Boiler Repairs (36C25227B0001 — due Nov 18), Dallas VA Medical Center Steam Trap Monitoring & Welded Piping Repair (36C25727Q0033 — due Nov 4), and VA Southern Oregon Boiler & Chiller Plant Repairs (36C26027Q0022 — due Nov 13).
Contracting Officers at the VA, Department of Defense, and municipal utilities rarely split a boiler tube replacement or chilled-water header replacement into separate "welding" and "HVAC" contracts. Instead, they publish the entire solicitation under NAICS 238220.
| Work Type Inside NAICS 238220 | Required Certifications / Licenses | Typical Agency Buyers |
|---|---|---|
| Welded Steam & Hydronic Piping | ASME Section IX / B31.1 / B31.9 WPS & WPQ, National Board "R" Stamp (for boiler pressure parts), NFPA 51B Hot Work | VA Medical Centers, USACE, State Universities, Military Base Central Heat Plants |
| Chiller & Cooling Tower Overhauls | EPA Section 608 Universal, State HVAC/Refrigeration License (e.g., CA C-20/C-38), OSHA 30 | County Hospitals, Municipal Courthouses, Airport Authorities, School Districts |
| On-Call Mechanical & Plumbing T&M | Master Plumber / Mechanical Contractor License, Backflow Tester Cert, Prevailing Wage Certified Payroll | City Water/Wastewater Utilities, Housing Authorities, State DOT Rest Areas & Depots |
36C25226Q0670 with a $30.30/hr + 30% fringe floor), your billed T&M rate must cover base wage, fringe, payroll taxes, workers' comp, service truck/welding rig amortization, and overhead.BidRanger is permanently shutting down on Friday, November 20, 2026 and has already disabled new sign-ups. Unlike generic scrapers that flood your inbox with janitorial and paving RFPs, IronBid Pro keeps the 7:00 AM Eastern morning email habit and filters strictly to NAICS 238220, 238120, 332312, 238990, and 811310.
Read the BidRanger Shutdown Migration Guide →Choose your plan below for instant checkout via Stripe, or explore the interactive Rig & Shop T&M Calculator on ironbidhq.com/#pricing.
50-State + SAM.gov daily 7:00 AM ET email filtered for NAICS 238220, 238120, 332312 & 811310 with Go/No-Go summaries.
Full year of 7:00 AM ET daily bid digests across all 50 states plus the $49 Rig & Shop Compliance Pack included free.
Editable T&M Rate Estimator CSV, NFPA 51B Hot Work Permit, AWS D1.1 / ASME IX WPS Continuity Log & Subcontractor MSA.
Custom 1-page Contracting Officer-ready SAM.gov Capability Statement PDF tailored to your NAICS codes, UEI/CAGE & past performance in 24 hrs.
NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors) covers federal, state, and municipal solicitations for chiller inspection and replacement, central steam and hot-water boiler plant repairs, ASME Section IX welded heating piping, medical gas and backflow testing, and on-call commercial HVAC preventive maintenance. The U.S. Small Business Administration (SBA) size standard for NAICS 238220 is $19.0 million in average annual receipts.
VA Medical Centers, military bases, and county facilities frequently classify high-pressure steam pipe welding, boiler tube replacement, and hydronic chiller header fabrication under NAICS 238220 rather than structural welding codes. Contractors with ASME Section IX certified pipe welders and NFPA 51B hot-work programs win high-margin mechanical repair work under 238220 with far less general-contractor competition.
With BidRanger permanently shutting down on Friday, November 20, 2026, IronBid Pro provides the same 7:00 AM Eastern daily email format while filtering specifically for NAICS 238220 (HVAC, chillers, boilers, welded piping) alongside 238120, 332312, and 811310 across all 50 states and SAM.gov for $29/mo or $199/yr.