The man who came was quite nice, and seemed somewhat embarrassed about his company's policy. The advertise a 1 yr guarantee, but it's really only 10 months. Big deal you might say, but for all of you that know fleas, it's a really big deal. Fleas come out mostly in Sep and Oct each year. A 1 yr guarantee gets you into the next flea season. A 10 month guarantee falls just short. In month 11 and 12, their so called guarantee drops to a pro-rated deal, i.e. you get a 8-16% discount. Not much of a guarantee. They say 1 year right on the side of their vehicles, and on their website too. Classic false advertising. I ended up buying flea powder and nematodes online, then applying both products myself. Saved a lot of money.