I could not be happier with the HVAC system installed by Delta-T Mechanical. David Connelly recommended a system that provided the highest level of efficiency for my budget. The system has performed impeccably and I have been extremely satisfied. I replaced two twenty year old systems and i can’t believe the difference in the comfort of the home and the reduction of my energy bills. The install was first class and very professional. After installing the equipment in the summer, Delta T came back as winter approached to start up the furnace and to make sure it was working perfectly. David also recommended wi-fi enabled thermostats that I am very pleased with. I would highly recommend Delta-T as a highly capable, professional and cost competitive contractor.