It has never taken longer than a month to cure any of them… and our pest control people don’t “bomb” the units… they are usually spraying the crevices, or baiting the German ones.  

Third, they take zero time to get to know their customers (cash buyers) and rely on a spray and prey method.

If mold started growing in the AC spray areas with bleach to kill it and vinegar to inhibit.

Spray with a probiotic enzyme....let set for 3 days than ozone overnight with all cabinets open and air conditioner on to pull thru ductwork.

Next time, i will spray the attic too, what is 10-15 gallons of kilz when you are doing a complete remodel, and the spray rig is already being used. 

The way we usually do it these days is to put the mix into a pump sprayer, spray it on the walls until they start running, and scrub with sponge mops.Trim, doors, and windows should be scrubbed with solution using dishwashing gloves and hand sponges.Then you empty the buckets, spray with clean water, scrub and rinse, repeat.

Guests constantly spray lighter fluid into them and create huge fire balls. 

Anything the animal pooped, peed, or sprayed on needs to be sealed in with an oil-based primer.I speak from experience.

I discovered the water pipe running to the swamp cooler had ruptured and was spraying across the roof yesterday there was no leak.

Yellow spray foam cans would have done the trick for me.