Rodolfo arrived at the prescribed time to perform the all-day work of cleaning our ducts on a 30 year old house. We had never thought about the need to perform this whole house service until we were running into some ventilation problems (HVAC). Rodolofo was exemplary in his attention to detail and willingness to share his findings throughout the process. He provided before and after pictures for the 30 vents cleaned. I Highly recommend using this professional service. It is amazing to see how much dust and particles get accumulated over time.