Residential air balancing is often overlooked. When in fact most air conditioning systems are out of balance and have no way to be balanced. Commercial air dampers don't work because of duct leakage and the fact that the spider duct systems are stretched out around the attic with limited access.
Efficient Energy Services Inc. has developed a residential internal air balancing damper that is installed from inside the house and can be installed by anyone.
If you don't have the tools or the time Efficient Energy Services Inc. can take care of all of your residential air balancing needs.