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A letter from the President – Paul Pfannenstiel I like to play handball.  Not too many people know what that is, so I tell them it’s like racquetball but you just use your hands instead of a racquet.  I started playing when I was 19 and have been playing constantly ... Read More

A Letter from Paul:  Retro-Commissioning of HVAC Equipment  Definition of Retroactive: Extending in scope or effect to a prior time or to conditions that existed or originated in the past. One of the new buzzwords in the HVAC industry is retro-commissioning. This has turned out to be a valuable tool ... Read More

A Letter from Paul:  Ask the Expert Q&A PM Contracting is a commercial heating ventilation and air conditioning TEAM who has been designing and installing systems since 2004. PMC is comprised of sheet metal workers, pipefitters and service technicians. With the collaboration of our project managers, estimators and field personnel, ... Read More

A Letter from Paul: Bipolar Ionization – Plasma Air Technology Every so often, we run across a product that looks like a black box. We wonder, “What is inside this box”? and “Why does it cost so much”? The manufacturer tells us that the black box will do all sorts ... Read More

A Letter from Paul: Technical Knowledge Isn’t Enough When I was in high school, I was kind of a nerd. I went to a prep school and took advanced math, chemistry, and physics classes. At the time, I thought it was a good method to engage my brain and keep ... Read More