The National Service and Maintenance Agreement is an agreement negotiated and administered by the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry (UA) and the Mechanical Service Contractors of America (MSCA) and is a signed contract between the UA and individual mechanical service contracting firms who apply and qualify. The Agreement is a nationally recognized tool that helps contractors provide quality, consistent service to their customers throughout the country and helps reclaim lost market share. The Agreement covers all work performed by service, plumbing and refrigeration contractors to keep facilities and existing systems within those facilities operating in an efficient manner. This can include air conditioning, heating, refrigeration, plumbing, ventilation, building automation systems and total building operations. The current National Service and Maintenance Agreement between the UA and MSCA is in effect from August 1, 2021 – July 31, 2027.

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MSCA has established two $2,500 scholarships that celebrate and honor the first Executive Director of MSCA, Barbara Dolim. This national scholarship will be awarded each year to two exceptional students who are pursuing two-or four-year degrees in service work, with a goal of continuing to inspire and support the next generation of mechanical service professionals.
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In 2025, MSCA conducted a comprehensive benchmark survey to obtain current data on key performance indicators (KPIs) in the HVACR and plumbing service industry. The results were very insightful and sure to be beneficial to all MSCA members. The full report is now available, results are presented in two formats, one is overall results and the second is broken down by company size which can provide specific insight relevant to your company.
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The UA and its signatory contractor partners are experiencing unprecedented labor and construction demand, helping them grow union market share. A unionized workforce provides the stability needed to attract new contractors and secure owner commitments to union labor. This stability depends on reliable, cost-effective resources for resolving jobsite and bargaining disputes—resources that have been disrupted by the current Administration’s effective shutdown of the FMCS. This White Paper proposes the Industrial Relations Council (IRC) as a faster, more affordable, and effective alternative for keeping it within our industry.
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This guide provides practical information to help mechanical contractors prepare properly for bargaining, understand what to expect, avoid common pitfalls, and achieve better results. That includes being familiar with both the policy/legal context and the real, pragmatic steps of bargaining, which are presented in plain English.
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This session addresses the challenges that arise when work stoppages occur directly with a member firm’s employees, such as strikes at contract expiration. It reviews primary picketing, “wobbles,” and strikes resulting from a labor impasse. The discussion also highlights key considerations, including the strike manual, interim agreements, violations of no-strike clauses, and the requirement to notify the FMCS.
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This session outlines the steps an affiliate may take when a member firm faces a work stoppage caused by a labor dispute with another union or employer. It explains the concepts of secondary picketing, secondary boycotts, and area standards boycotts.
Description:
These sessions provide an overview of Trusts and their connection to collective bargaining. They explain Taft-Hartley Trusts along with other benefit-related trusts, highlighting their role in labor-management relations. The discussion also emphasizes why it is important for employers to exercise their right to allocate raises. Finally, it explores the process for allocating a raise and the distinction between benefit plan design and bargaining.
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