Mice are one of the most common and frustrating pests found in homes and businesses across Colorado. While they may seem small and harmless, mice can cause serious problems once they get indoors. They contaminate food, chew through wires and insulation, and can spread disease through droppings and urine.
In Colorado’s climate, mice are especially problematic during colder months when they look for warmth and shelter inside homes, garages, and commercial buildings. Once inside, they reproduce quickly, turning a small issue into a much larger infestation if not addressed promptly.
Hearing scratching in your walls at night? That is one of the most common early signs of a mouse infestation. Don’t wait, mice reproduce fast and a small problem can become a large one within weeks.
Types of Mice Found in Colorado
Most Common
House Mouse
Mus musculus
Small, light brown or gray. The most common indoor mouse pest. Found in homes, apartments, and businesses statewide. Excellent at staying hidden inside walls, ceilings, and behind appliances.
Health Risk
Deer Mouse
Peromyscus maniculatus
Brown with a white belly. Common in rural and semi-rural areas of Colorado. A known carrier of hantavirus, making prompt identification and removal especially important.
Foothill Areas
White-Footed Mouse
Similar in appearance to the deer mouse. Found primarily in wooded or foothill areas. Can enter homes during colder months in search of warmth and food.
Seasonal note! Mouse activity peaks in fall and winter as Colorado temperatures drop and mice move indoors for warmth. However, indoor infestations remain active year-round regardless of season. Heated homes provide everything mice need to survive even the coldest months.
FAQ: Mouse Questions
Yes. Mice can spread diseases such as hantavirus, salmonella, and leptospirosis through droppings, urine, and contaminated surfaces.
Very quickly. A single female mouse can have 5–10 litters per year, with each litter containing 3–14 pups.
Mice can fit through openings as small as a dime. They commonly enter through gaps in foundations, around doors, vents, and utility lines.
No. They actively search for food and nesting areas, often traveling within walls, ceilings, and crawl spaces.
Droppings (small, dark pellets), scratching noises in walls or ceilings, chewed wires or food packaging, and nests made of shredded materials.
Why Do I Have Mice?
Mice are attracted to three main things: food, shelter, and warmth. Common attractants include:
🍞 Crumbs or improperly stored food
🐾 Pet food left out overnight
📦 Cluttered storage areas
🕳️ Easy access points into the structure
Colorado’s colder seasons make homes especially appealing, but even in warmer months, mice will stick around if food and shelter are readily available.
Where Are Mice Found?
Mice are excellent at staying hidden. Once inside, they typically nest in tight, dark areas. Common hiding and nesting spots:
🧱
Wall voids
🏠
Attics & insulation
🕳️
Crawl spaces
🍳
Behind appliances
🚗
Garages & storage areas
🏢
Drop ceilings (commercial)
How Do I Get Rid of Mice?
The answer depends on the severity of the problem. DIY solutions often only address the surface without finding how mice are getting in, they will return.
Steps you can take to get rid of mice
01
SEAL ENTRY POINTS
Seal cracks and openings around your foundation, doors, and utility lines with caulk or steel wool. Mice can fit through a gap the size of a dime.
02
STORE FOOD SECURELY
Store all food, including pet food and birdseed, in airtight, hard-sided containers. Remove accessible food sources that attract mice.
03
SET SNAP TRAPS
Place snap traps in high-activity areas like along walls, behind appliances, and near entry points. Check and reset regularly.
04
REDUCE CLUTTER
Remove clutter in garages, basements, and storage areas to eliminate nesting materials and hiding spots.
Complete Pest Control – Our Process
At Complete Pest Control, we take a comprehensive approach to eliminate mice and keep them from coming back. Our process includes a full inspection to identify entry points and activity levels, exclusion work to seal vulnerabilities, strategic placement of traps and bait stations, and follow-up monitoring to ensure the problem is fully resolved. Mice are persistent, without addressing how they’re getting in, they will return.
How to Prevent Mice
Preventing mice requires consistency. Here are the most effective steps to keep mice out of your home or business:
- Seal cracks and openings around your home, including along the foundation, doors, and vents
- Install door sweeps and repair damaged screens
- Keep food stored securely and clean up spills quickly
- Take out trash regularly and use sealed containers
- Reduce clutter in garages, basements, and storage areas
- Trim vegetation away from the foundation
- Store firewood at least 20 feet from your home
- Keep bird feeders and pet food in airtight containers
- Prevention is always easier, and more affordable, than dealing with a full infestation.
Colorado Springs · Licensed & Insured · 10+ Years Experience
Ready to Get Rid of Mice? Call Complete Pest Control.
Don’t let mice take over your space. At Complete Pest Control, we provide reliable mouse control services for homes, businesses, and multi-family properties across Colorado. Our team understands local pest behavior and uses proven methods to eliminate infestations and prevent future issues.
“Nico came out next day and did an incredibly thorough check of the house – no crawl space left unsearched! I signed up for a 12 month agreement to make sure we get Nico back out to help us reclaim our home! I would give 6 stars if I could.”
Marc P. · 5-Star Google Review