Well, I was skeptical to contact another duct cleaning company after getting an invoice for $800 to deal with mold. Mr. Estovan came out and walked me through recommendations on my unit in the attic. Just moved into new house needing some work and let me tell you, it's is hard to find good people not trying to take advantage of you. Estovan is a good guy. Gave me great quote showed me what steps I can take for maintenance of unit. Can't say enough good things about him; he restored my faith about people that really do care about the work they do verses the profits they bring in. Do not doubt the legitimacy of my post, I was just like you looking to find somebody who knows their stuff and will shoot me straight. ESTOVAN WITH CLEAN AMERICA IS THAT GUY. Call em up, have em come out and see for yourself.