Don't take their Better Business Bureau rating at face value. Go to www.bbb.org and read the complaints about this business before you pick them. Promises and warranties are easy to make up front, but living up to them is a different story. You might find yourself very disappointed down the road with the results you get, or rather don't get. Be prepared to be personally blamed for fungus that reappears after treatment. Saying "It's not our fault" is the easiest way of getting out of a warranty.