You need to first remove any rodents that have already gotten inside by using traps and bait stations. Then you need to block entry points with chew-resistant materials and do ongoing annual inspections to make sure the infestation doesn’t start back up again.
Finding rodents in your home is never a fun experience. Every fall, as temperatures drop, mice and rats go looking for the same shelter you have. They like quiet, warm spaces stocked with food. Your home has all of that.
No home is truly sealed when it comes to rodents. No home really can be. Mice can squeeze through holes the size of a dime. So all of the following could be ways a mouse could get in: the gap under doors, the garage door even when open only a minute, settling cracks in the foundation, spots where pipes and cables pass through walls, dryer and exhaust ports, roof and gable vents, chimney flues, and the roofline seams nobody checks. A trained rodent control professional can help you find how rodents are getting into your house (or how they could in the future).
If you have rodents already, you’ll need to lure them out with traps and bait stations. These should be placed where rodents already are so you can clear the existing population. Then you can do exclusion work, which means sealing the entry points with chew-proof materials. Once that’s done, a professional can do regular inspections to make sure the problem doesn’t start up again.
For your part, unglamorous work can make a big difference. Seal food in containers and keep a tight lid on trash. If you have birdseed, keep it in metal cans. Keep firewood and brush away from the foundation. Trim branches away from the roofline.
If you think you may have rodents in your home, Mosquito Squad of Central New Hampshire can help. Mosquito Squad can help clear out existing rodent populations and prevent new ones from entering. Complete Home & Yard coverage includes monthly rodent protection to help keep them out year-round.