I had several quotes on balancing the air flow in my office. They all wanted to do a major overhaul of my duct work costing Thousands of dollars. Efficiency Mechanical came up with a simple solution that cost a fraction of the other guys. My office is now well balanced and I have been able to drop my thermostat by 4-5 degrees. My employees are happy because before Efficiency Mechanical came in half where freezing and the other half where hot.
These guys where honest and very professional. I would recommend them to anyone.