Our company started a remodel project to a historic building in De Pere. While doing the project we ran into numerous issues, one included the heating and cooling portion. Synergy stepped in, fixed and completed the project all to code without any hesitation. The work was completed timely and efficiently. We at IT Connexx cannot thank Synergy enough for all of their hard work and for helping us finally get into our new building. I would highly recommend Synergy for your heating and cooling needs.