How to bid on Backflow Inspection, Maintenance & Repair for the Dept. of the Interior

What the agency is buying

The National Park Service needs a small business to inspect, maintain, and repair backflow prevention devices at Independence National Historical Park in Philadelphia, PA. This contract involves annual testing and certification of all backflow prevention devices and air-gap separations. It also includes responsive maintenance and repair services for devices that fail or do not comply with regulations.

This is a firm-fixed price contract. It is set aside for small businesses, meaning only small businesses can submit proposals.

Key dates and deadlines

The solicitation was published on September 09, 2026. A site visit is scheduled for September 16, 2026, at 10:00 AM ET. The meeting location is Merchant Exchange Building, 143 S. 3rd St., Philadelphia, PA 19106. All questions regarding this opportunity must be submitted by September 18, 2026, at 12:00 PM EDT.

The final deadline for submitting your proposal is September 21, 2026, at 5:00 PM ET. Proposals submitted after this time will likely not be considered.

Who this opportunity suits

This opportunity is suitable for small businesses specializing in equipment maintenance, specifically those with expertise in backflow prevention device inspection, testing, certification, maintenance, and repair. Firms with experience working on historical sites or within national parks may find this particularly relevant.

The contract is a total small business set-aside, so only small businesses are eligible to bid.

How to respond

To access the full solicitation details, click “View original source” to open the opportunity on the portal. If the first click takes you to the portal’s homepage, click the link again to go directly to the bid. You may need a free account to view all documents, though this is not always required.

Tips for a competitive response

Attend the scheduled site visit on September 16, 2026, to gain a clear understanding of the scope of work and the specific conditions at Independence National Historical Park. This can help you tailor your proposal more effectively.

Submit any questions you have by the September 18, 2026, deadline. Clear up any ambiguities early to ensure your proposal addresses all requirements accurately. When preparing your proposal, clearly outline your experience with backflow prevention devices, including annual testing, certification, and responsive repair services. Highlight any relevant certifications your technicians hold.