Welcome to A. Treffeisen & Sons, LLC, a third generation Plumbing, HVAC and Electrical contracting firm since 1923.

We have design-build capibility with negotiated contracts to competitive bid plan-spec work. Some of our clients include the National Baseball Hall of Fame, Kraft Foods, DMV International, Covidien, Unison, Brewery Ommegang, Amphenol Aerospace, Mallinckrodt, A.O. Fox Hospital and Tyco International.

Click here for our complete company history.

Email Kevin Treffeisen: kevint@atreffeisenandson.com
Email Jamie Treffeisen: jamie@atreffeisenandson.com
Email Wayne Treffeisen: wayne@atreffeisenandson.com

Email Cathy Treffeisen: cathyt@atreffeisenandson.com

Email Lisa Short: lisa@atreffeisenandson.com