Hi Wendy, We don't recommend having your ducts cleaned. The reason why is it tends to damage the ductwork and cause holes - which in turn causes many other problems for your home and AC system. We have tested this and found that we aren't comfortable recommending it, so we don't perform this service at the best interest of our customers.
Do not know. Call them. They are most reputable.
Thanks! Your answer is awaiting moderation.