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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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What is Microbiologically Influenced Corrosion (MIC) and why do contractors need to know anything about it? Well, it turns out that MIC can negatively affect your profits.

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On occasion we get questions from our members who would like to use backing flux in lieu of purging when making welds on stainless steel or other corrosion resistant materials. This bulletin describes an experiment conducted by NCPWB Consultant Walter Sperko where he had a colleague make stainless steel butt welds without any protection of the root of the weld, with inert gas backing, with backing flux and with flux-coated wire.

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When reviewing a Welding Procedure Specification (WPS) or a welder qualification record, the term "backing" frequently appears. In some cases, backing is required, while in others, it is optional. Backing can take various forms, including metal, non-fusing metal, nonmetallic materials, or even weld metal. But what exactly is "backing," and why is it important in welding?

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Year after year, electrocutions remain one of the top four leading causes of death among the construction trades. This video highlights the ways in which workers can protect themselves.

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The E6010 electrode is a wire encased in cellulose held together with salts and minerals. These electrodes penetrate better than low-hydrogen electrodes like E7018 when making root passes, making it easier to make a good root pass. However, E6010 introduces hydrogen into the weld creating a risk of cracking, and this article shows when its use should be limited.