Brandon and Vern cleaned our entire home ducting after we had problems from a recent foam injection causing blockage in several heating/cooling ducts. They were very thorough and helpful explaining in detail the problems caused by the blockages. They were able to remove all of the blockages from both the supply and return main lines and identified which distribution stacks still require further removal. None of this would ever have been possible without their thorough detailed cleaning process. Thanks again for a job well done.