If you cannot get a hold of him by phone during the day please leave a message . TRUST me he will get back to you. I hired John for his duct cleaning services twice. First was cleaning for a dryer vent when I first bought my house. Second was for complete duct cleaning for the whole house. John is the owner and operator of his company he does his own work, so he stands by the work that he does. If his work wasn't A+ then he wouldn't be still in business after all these years. He went above and beyond with my duct cleaning, he even crawled into my attic for additional cleaning around my HVAC unit and re-cleaned my dryer vent free of charge. I would definitely use his services again if needed.