I dealt with a Staff member from Power Vac. He was polite, knowledgeable, and efficient. He had his trained staff members attend to our residence to perform a duct cleaning service. They were prompt, on time and did an excellant job for my wife and me. They responded to our questions willingly and explaned their process to us to help us understand the procedure. I would gladly recommend their services to those looking to have their house vents cleaned and sanitized.