Contract · Federal · Total Small Business Set-Aside (FAR 19.5)

Water Treatment Service HVAC System

Agency: DEPT OF DEFENSE / DEPT OF THE AIR FORCE
Location: Dover, DE
Amount: Amount not listed
Posted: Jul 24, 2026
Set-aside: Total Small Business Set-Aside (FAR 19.5)
NAICS code: 238220 - Plumbing, Heating, and Air-Conditioning Contractors look up NAICS codes
PSC code: J041

Timeline

Posted

Jul 24, 2026
Status

Closing soon

What contracts like this typically pay

est. $24K-$183K

Estimated from 223 similar past awards nationwide, NAICS 238220.

This is not this contract’s value. It’s what the government has actually paid for comparable work in the past. How we estimate this.

What this contract is for

Agency: DEPT OF DEFENSE / DEPT OF THE AIR FORCE
Location: Dover, DE
Set-aside: Total Small Business Set-Aside (FAR 19.5)
NAICS: 238220 - Plumbing, Heating, and Air-Conditioning Contractors
Scope: Federal

AMENDMENT 0006 The purpose of Amendment 0006 to solicitation FA449726Q0031 is to: 1.

Update Pricing Methodology: The pricing structure for as-needed chemicals (Propylene Glycol) has been revised to utilize a Government-established Not-To-Exceed (NTE) "plug number." Bidders are no longer required to provide a firm-fixed unit price per gallon.

All offerors must use the fixed NTE amounts provided by the Government on the Quote Schedule.

Updated Solicitation Attachments: The following revised documents replace previous versions in their entirety and must be utilized for quote submission: Attachment 12 - Updated-PWS (Section 3.4 updated to reflect NTE reimbursement process) Attachment 13 – 52.212-2, Evaluation Addendum- UPDATED (Paragraph 'c' updated to reflect TEP evaluation of NTE amounts) Attachment 14 QUOTE SCHEDULE-Water Treatment (CLINs 0003AA/AB updated to reflect Government-established NTE Lots) All offerors—including those who previously submitted a response—must submit a revised quote utilizing the new Quote Schedule (Attachment 14) to remain responsive. ***All other terms, conditions, and deadlines remain unchanged.*** AMENDMENT 0005 - Reopening Solicitation The purpose of Amendment 0005 to solicitation FA449726Q0031 is to: Reopen the solicitation.

AMENDMENT 0004 – FINAL Q&A AND UPDATED PWS The purpose of Amendment 0004 to solicitation FA449726Q0031 is to: 1.

Publish Final Consolidated Q&A: The official Government responses to the final round of vendor questions following the site visit are provided in the attached document: Attachment 10 - FA449726Q0031 QA Log 2.

Issue Updated Performance Work Statement (PWS): This document replaces the original PWS and is provided in the attached document: Attachment 11 - Updated-PWS ***All other terms, conditions, and deadlines rem...

Official solicitation and documents

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View the official listing on SAM.gov

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How to bid on this

This is a contract solicitation, not a grant. To bid, you submit a proposal (usually a price and a description of how you would do the work) directly to the government, through the channel the official listing specifies, not through Oppward.

Make sure your business has an active SAM.gov registration. You cannot be paid on a federal contract without one.
Read the full solicitation on the official listing above, especially the scope of work, not just this summary. Our guide to reading a solicitation walks through what to look for.
Check the set-aside listed above and confirm your business actually qualifies for it before you spend time on a proposal. See our guide to set-asides if the category is unfamiliar.
Submit your proposal by the deadline, using the exact submission method the official listing states. A technically on-time bid sent the wrong way is often treated as late.

Read our guide: Government construction and trades contracts: how they work