I have had to actually rebuild from the inside out on deals like this the smell permeated the 2/4s so we had to basically reframe the whole house one two x four at a time.

Through away all floor coverings and the cat smell still permeated the house!   

The neighbor above says it has permeated to her apartment, and she cannot stay there. 

The West Coast has seen dramatic home price appreciation over the last two decades, a trend that permeated the entire region.

If it has permeated a porous material, like drywall, mitigation may be in order. 

Shortly after I got the trench dug on the problem side of house, water began to permeate the soil, and filled up the trench.  

All done the rewards are oh so sweet when you have a new asset with that new tenant smell still permeating the club house and your maintenance man is soundly asleep in the corner with the Maytag man!

Dirt and stains wont permeate the grout and if your lucky, will just need a quick clean and re-seal at turnover.

Any carpet that has had a dog lying on it for 4 years is going to have body oil imbedded in the carpet, as well as odors that have permeated the padding.

Hi Mark, if you're pulling the carpet out I would also apply a coat of the oil base primer on the subfloor, (especially if it is plywood) in addition to the ceilings and walls, to cover any odors that have permeated that surface.