Alan responded right away to my inquiry on thumb tack. He worked around my schedule for both the estimate, and the cleaning. I was surprised by how reasonable their rates are ! Alan and Jake came to clean all my hvac ductwork ,and also framed and built a sealed box for the air intake. I really felt like alan was upfront and honest with me , and i felt at ease with both of them in my home. Their work was professional, they did what they promised, and cleaned up after themselves. I'll definitely use Duraclean again, and recommend to others.