We wanted to switch from evaporative cooling to refrigerated air. From start to finish Carlson made this process as smooth and painless as it's possible to imagine. Everyone we dealt with - Mario, who walked us through the decision making process; David and Chris, who did the installation; Paula, who co-ordinated everything at the office end, and the electrical contractors who did the necessary upgrades - every single one was outstanding. Professional, polite, intelligent, capable, thoroughly skilled and knowledgeable. Never had such an all-round good experience with any contractor. B. Carlson is the absolute best. We are 100 percent happy with our new system, and 100 percent confident in the ongoing maintenance service that Carlson will be providing.