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Winter in Illinois brings cold winds and icy nights. That is why it can cause a rise in mouse activity in the state. The drop in temperatures forces mice to look for warmth and hidden nesting spots. Also, they ensure the spot they choose provides them constant access to food sources. The best defense against these filthy creatures is to seal all potential entry points before the cold arrives. The best pest control company near me can help you locate potential entry points and seal them. It has experts who have done this job before, so they know exactly where to look and what to do. Below are steps you can take to protect your home from mouse invasion:
Walk the Exterior and Identify Weak Spots
Exterior gaps form in foundations, siding, roofing edges, and utility entry points. Homes in Illinois can also face issues from seasonal contraction of wood, which widens cracks once cold air settles in. Ensure to inspect areas such as spots where siding meets foundation. Also, look for openings around gas lines, cable lines, and air conditioning units. Worn weatherstripping at the door and gaps in soffits and vents also deserve a look.
Seal Foundation Cracks with Durable Materials
The foundation experiences shifts that widen cracks as soil freezes and thaws. Mice find these spaces and follow them into wall cavities or basement zones.
Use high-grade exterior caulk for narrow cracks. Wider spaces require mortar or cement filler. Also, use patch materials shaped for irregular gaps on homes with stone foundations. These repairs keep mice from slipping through and improve energy efficiency in winter. Certain Illinois homes with older foundations benefit from a yearly inspection because repeated cycles of moisture and frost pressure can open new gaps each season.
Reinforce Door Frames and Replace Weatherstripping
Exterior doors often look sealed, but leak warm air along the sides or bottom. Mice follow warm air currents with surprising accuracy. This makes door frames one of the first targets for winter invasions.
Check for light seeping in around doors. Mice can pass through if light passes through. Quality weatherstripping closes these spaces. Door sweeps block access under door frames. Metal-reinforced sweeps withstand gnawing better than rubber models.
Garage doors also require close inspection. Small openings at the base or corners invite mice to enter the garage, then move deeper into the home. A strong bottom seal keeps cold drafts and pests out.
Protect Utility Openings with Metal or Mesh
Mice can enter homes through the gaps created as cable lines, gas pipes, HVAC openings, and dryer vents pass through holes. Builders rarely seal these with pest prevention in mind. Use copper mesh or steel wool to fill these openings. These materials deter mice because they cannot chew through them. After packing the gap tightly, apply caulk or foam to hold the material in place. Copper mesh lasts longer and resists rust, which is useful for moist Illinois winters. In addition, use a vent cover with a tight-fitting flap or metal grate.
Strengthen Attic and Roofline Protection
Attics stay warm due to rising heat from lower floors, making them appealing for winter nests. Mice may enter through gaps in soffits, roof vents, and damaged shingles.
Inspect the roofline from the ground first. Look for lifted shingles, sagging edges, or loose trim. Also, screen off attic vents with hardware cloth, which is a metal mesh that keeps rodents out while allowing ventilation. Foam or caulk alone does not protect these areas because mice chew through them with ease.
Clear Clutter Around the Exterior Perimeter
Mice can travel under tall weeds, firewood piles, stacked items, and dense shrubs. They can reach exterior walls when these areas sit close to the home.
So clear leaves and trim shrubs before winter arrives. Also, move firewood stacks at least a few feet from the foundation. Keep trash bins sealed tightly.
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