Air Duct Cleaners

should I need the air duct cleaning license or some license like that to stard the air duct cleaning business?

Hai asked: I am living in the California, I will start the new small business, It is airt duct cleaning for houses, commercial and industrial. Should I need the license for air duct cleaning or only business license is OK?Air Duct Cleaning

what causes a rotten egg smell coming from a central air conditioner?

marianne_whitehead asked: The ducts appear clear and the unit is clean. The ducts come from the basement level and are throuout the house. The smell is sharp, not like a dead animal. The stove is gas, by the way.Dryer Vent Cleaning Equipment