Stay away from using Indoor Air Care or United Air Care (the company's former name).
Their ads suggest reasonable prices for cleaning air ducts, but once they get to your home, they "recalculate" the amount of work needed and charge an astronomical amount of money - thousands of dollars instead of hundreds.
One worker didn't speak English, couldn't answer questions, and barely did anything - he held the air hose.
They'll offer coupons, too, to make you think you are saving money, but the initial price is so inflated the coupons make no difference.
Please use another company and get multiple quotes. I unfortunately researched this company as the work was being done and the contract was signed, otherwise I would never had used this company.