Like spiders, snakes are predators, and will only 'infest' a home or property under very rare conditions. With snakes, this is almost always a breeding situation. Whether the species is poisonous or not, and albeit very uncommon, a snake infestation is a very severe problem for a property owner.
That said, what is very common in our area are random appearances of singletons - rattlesnakes and bull snakes, especially. We commonly remove these snakes, especially during certain times of the year.
Not an uncommon sight around Albuquerque.
Here are a pair of examples of snakes moving in on a home - definitely a situation best addressed by an outside professional:
We commonly get called to remove Bull Snakes, which are often mistaken for Rattlesnakes - which they mimic when scared.
Garter snakes are good to have around, but occasionally they create a large den on a property, whcih we are called to remove.
We were called to remove this Bull Snake, which we relocated to a better area.