When you install a brand new HVAC system, you don’t expect to have to call for service 7 days later, but that was the case. BG had nothing to do with the installation, but he identified and corrected 3 significant issues with the system that prevented it from heating our home. He explained what he checked, told me what he had to adjust or fix and last night (while not as cold) the system kept the house at the expected temperatures. Thank you BG!