Being in pest control for 12 + years I can say I have seen so much damage done by rodents. I have seen rodents soil attic insulation to the point of it needing to be removed and replaced. I have seen rats chew on electrical wires causing shortages. Rats have even chewed through plumbing pipes causing leaks in some of our clients homes. Just recently we had a rat chew through pool pump electrical wires. For these reasons rodent control is so important.
Factors that increase rodent population in an neighborhood or particular area include: creeks close by, ivy or ground cover, no upkeep on landscape, overgrown trees and shrubs and bushes, gardens, fruit trees, firewood being stored up against a home, garbage cans with lids open or not sealed with bungees, chicken or livestock, compost in our yard, a garage door that is date and doesn’t seal properly, dry rotted siding and a weathered roof. How many of these have you noticed around your home and neighborhood? If you look for it you will find where rodent control is needed.