Attics are awkward to treat. You've got rafters, joists, sheathing, and insulation tucked together at weird angles, and nobody is scrubbing every square inch of that by hand. Some companies try. They strip the insulation, sand every timber, then reinsulate. It takes days and the bill is brutal.
We use Pure Maintenance's patented vapor technology instead. It's a vapor that moves through the whole attic and reaches every surface, including the tight spots a person physically can't get to. The vapor kills the mold, then a second pass lays down a protective coating that helps stop regrowth. Most attics are done in a few hours, not a few days. We'll also figure out what caused the problem in the first place, so you can get it corrected and not see us again next winter.