I had a smell coming from under my house, and I started wading through the listings of trappers/removal specialists on the web. I got a number of quotes, from high to ridiculous. Dirk at Affordable Critter Solutions had a fair quote and one of his guys was able to come out the next day. He crawled under the house, pulled out the decomposed opossum that was causing the stink, cleaned up the area, and was on his way. It was very pleasant doing business with them.