Mechanical and Plumbing Services

The Washington Suburban Sanitary Commission (WSSC), Maryland is soliciting sealed responses for Mechanical and Plumbing Services to be performed at WSSC facilities located within Montgomery and Prince George's Counties, Maryland. The Contractor shall provide comprehensive mechanical and plumbing services including handling, setting, laying out, fabrication, assembling, erecting, installing, maintaining, repairing, replacing, backflow testing, and reconditioning of mechanical, electrical, and plumbing equipment and systems found within WSSC treatment plants, pumping stations, depots, and office buildings. The Contractor must provide backflow test reports, pull permits, and cover all associated fees. WSSC currently has approximately 220 devices across Montgomery and Prince George's Counties requiring backflow testing.

Key Dates and Deadlines:

• Released: May 18, 2026
• Pre-Proposal Meeting: May 26, 2026 at 3:30 PM
• Questions and Answers Deadline: May 29, 2026 at 6:00 PM
• Proposal Submission Deadline: June 18, 2026 at 2:00 PM

Submission Instructions:
Responses must be submitted via WSSC's eProcurement Portal at https://procurement.opengov.com/portal/wsscwater. Late responses will not be accepted. Sealed responses are required prior to 2:00 PM on Thursday, June 18, 2026.

Evaluation and Requirements:
The solicitation includes minimum qualifications requirements, evaluation factors, and compliance with Minority Business Enterprise (MBE) and Small Local Business Enterprise (SLBE) programs. Contractors must comply with prevailing wage requirements for both Montgomery County and Prince George's County. Insurance and bond requirements apply. All work must comply with applicable prevailing wage standards and other regulatory requirements as outlined in the complete solicitation documents.