Bid guide
How to bid on the Lower Monumental PH HVAC System Upgrade for DEPT of Defense
What the agency is buying and why it matters
The Department of Defense needs a contractor to modernize the HVAC system at the Lower Monumental Dam Powerhouse in Kahlotus, Washington. This project involves upgrading the heating, ventilation, and cooling systems to use river water, improve building pressurization to reduce smoke and dust, and enhance indoor air quality.
The new system will also include updated electronic controls for easier operation from the control room and permanent access platforms for maintenance. This is a firm-fixed-price construction contract, offering a significant opportunity for firms specializing in HVAC and related construction work.
Key dates and what happens at the deadline
This Request for Proposal (RFP) was published on September 02, 2026. All proposals must be submitted by email no later than September 22, 2026, at 5:00 PM ET. Proposals received after this deadline will likely not be considered.
The government reserves the right to cancel the solicitation at any time, and no reimbursement will be made for costs associated with preparing a response.
Who this opportunity suits
This opportunity is suitable for plumbing, heating, and air-conditioning contractors (NAICS code 238220) with a small business size standard of $19,000,000. It is an unrestricted competition, open to both large and small businesses. Large businesses will need to include a small business subcontracting plan with their proposal.
The project requires a Contractor Quality Control (CQC) System Manager with at least five years of relevant supervisory or management experience in construction quality, and who has completed the "Construction Quality Management for Contractors" course within the last five years. This manager must be on-site for each shift of operations.
How to respond to this solicitation
To access the full solicitation details and documents, click “View original source” on the portal. If the first click takes you to the portal's homepage, click it again to go directly to the bid. You may need a free account to view all documents, though this is not always required.
Proposals must be sent by email to [email protected]. Ensure your proposal addresses all requirements, including the CQC plan, submittals, and bonding. Offerors must also be registered in the System for Award Management (SAM) prior to receiving an award.
Practical tips for a competitive response
Since this is a Lowest Price Technically Acceptable (LPTA) solicitation, your proposal must meet all technical requirements while offering the most competitive price. Carefully review the scope of work to ensure your technical solution fully addresses all aspects, including the use of river water for HVAC, efficient powerhouse pressurization, and the modern electronic control system.
Pay close attention to the specific requirements for the Contractor Quality Control (CQC) System Manager, including experience and certification. Ensure your proposed CQC Plan is comprehensive and clearly outlines how quality will be managed throughout the project. Also, remember that 100% performance and payment bonds are required, so factor this into your planning and pricing.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from DEPT of the Army; the original posting controls.

