How to Get Rid of Mice: Complete Guide for Homeowners

Last updated: March 3, 2026

By James — 25-year pest control industry veteran

Mice are one of the most common household pests in the United States, and knowing how to get rid of mice effectively starts with understanding their behavior. A single pair of mice can produce up to 60 offspring per year, so a small problem can become a serious infestation quickly. The good news is that most mouse problems can be resolved with the right combination of trapping, exclusion, and sanitation.

This guide covers how to identify a mouse problem, the most effective DIY removal methods, when professional help is needed, and how to keep mice from returning. For pricing information, see our rodent exterminator cost guide.

Signs You Have Mice

Catching a mouse problem early makes removal much easier. Look for these common signs throughout your home, especially in kitchens, pantries, basements, attics, and garages.

• Droppings. Mouse droppings are small (1/4 inch), dark, and rice-shaped. You will typically find them along walls, under sinks, inside cabinets, and near food sources. A single mouse produces 50 to 75 droppings per day.
• Gnaw marks. Mice chew on wood, plastic, cardboard, and electrical wiring. Look for small, rough-edged holes in food packaging, baseboards, and cabinet corners. Fresh gnaw marks are light in color and darken with age.
• Scratching sounds at night. Mice are most active between dusk and dawn. Scratching, scurrying, or squeaking sounds in walls, ceilings, or under floors are a strong indicator of mouse activity.
• Nesting material. Mice shred paper, fabric, insulation, and dried plant matter to build nests. Finding small piles of shredded material in hidden areas such as behind appliances or inside storage boxes suggests an active nest nearby.
• Grease marks along walls. Mice follow the same paths repeatedly, and their oily fur leaves dark smudge marks along baseboards, pipes, and wall edges. These rub marks are a reliable indicator of established travel routes.
• Strong musty odor. A persistent, musky smell in enclosed areas like cabinets, closets, or crawl spaces often indicates a mouse infestation. The odor comes from mouse urine, which they deposit continuously as they travel.

If you notice two or more of these signs, you likely have an active mouse problem that needs attention.

DIY Methods to Get Rid of Mice

For mild to moderate infestations (a few mice in one area of the home), DIY methods can be effective when applied consistently. The key is combining trapping with exclusion and sanitation rather than relying on any single method.

Snap traps (most effective DIY option)

Classic snap traps remain the most reliable and cost-effective way to catch mice at home. Place traps perpendicular to walls with the trigger end facing the baseboard, since mice travel along edges rather than through open areas. Peanut butter is the most effective bait because its strong scent attracts mice and it cannot be easily snatched off the trigger.

Set at least six to twelve traps for a typical infestation, even if you think you only have one or two mice. Place them in pairs every 5 to 10 feet along walls where you have seen droppings or other signs. Check traps daily and reset or replace as needed. Most mouse problems respond to snap traps within one to two weeks.

Seal entry points (exclusion)

Trapping alone will not solve a mouse problem if new mice keep entering. Mice can squeeze through gaps as small as 1/4 inch, roughly the diameter of a pencil. Inspect the exterior of your home for cracks in the foundation, gaps around pipes and utility lines, spaces under doors, and openings around vents.

Seal small gaps with steel wool held in place with caulk. Mice cannot chew through steel wool. For larger openings, use hardware cloth (1/4 inch mesh) or sheet metal. Pay special attention to where utility pipes and wires enter the home, as these are common entry points.

Remove food sources

Eliminating access to food is essential for making traps more effective and discouraging mice from staying. Store all pantry items in sealed glass or heavy plastic containers. Clean up crumbs and spills promptly, especially behind stoves and under refrigerators. Keep pet food in sealed containers and do not leave it out overnight. Use trash cans with tight-fitting lids and take garbage out regularly.

Natural deterrents (limited effectiveness)

Peppermint oil is often suggested as a mouse deterrent. While mice may avoid areas with a strong peppermint scent temporarily, the oil evaporates quickly and does not provide lasting protection. Peppermint oil is not a standalone solution and should only be considered as a minor supplement to trapping and exclusion, not a replacement.

Glue traps (controversial)

Glue traps catch mice on a sticky surface and are available at most hardware stores. However, they are widely considered less humane than snap traps because mice can struggle for hours or days. Trapped mice may also chew off their own limbs to escape. Many pest control professionals and animal welfare organizations advise against glue traps when other options are available.

A note about poison and rodenticides

Rodenticide baits (mouse poison) are not recommended for DIY use inside the home. Poisoned mice often die in inaccessible locations such as inside walls, creating foul odors that can last for weeks. More importantly, rodenticides pose serious risks to children, pets, and wildlife through accidental ingestion or secondary poisoning (when a pet or predator eats a poisoned mouse). Professional exterminators use tamper-resistant bait stations and know how to place them safely, but homeowners are better served by snap traps and exclusion.

When to Call a Professional

DIY methods work well for small mouse problems, but some situations require professional intervention. Consider calling an exterminator if any of the following apply.

• You are still hearing or seeing mice after two weeks of trapping. If consistent trapping and sanitation have not reduced activity, the infestation may be larger than expected or mice are entering from a source you have not identified.
• Droppings are increasing despite your efforts. Finding more droppings over time rather than fewer means the population is growing faster than your traps can keep up.
• Mice are in multiple areas of the home. Activity in the kitchen, attic, basement, and garage simultaneously suggests a large population that requires a comprehensive trapping program.
• You cannot find or access entry points. Some entry points are in crawl spaces, roof lines, or behind finished walls where homeowners cannot easily reach.

What a professional exterminator does

A professional mouse removal service typically begins with a thorough inspection of the interior and exterior of the home to identify the species, estimate the population size, and locate all entry points. The exterminator then sets commercial-grade traps in strategic locations based on mouse travel patterns.

The most valuable part of professional service is exclusion work. Technicians seal entry points using steel mesh, concrete patch, metal flashing, and expanding foam. This prevents new mice from entering after the existing population is trapped. Most programs include one to three follow-up visits to check traps, remove captured mice, and verify that the exclusion work is holding.

Professional mouse removal costs

Basic trapping and removal costs $150 to $300 and typically includes the initial inspection, trap placement, and one or two follow-up visits. Full exclusion work (sealing all identified entry points) adds $500 to $2,000 depending on the size of the home, the number of gaps that need sealing, and the accessibility of the areas involved.

For a complete pricing breakdown by service type and home size, see our rodent exterminator cost guide. For general pest control pricing, visit our pest control cost guide.

Preventing Mice from Coming Back

Once you have removed mice from your home, ongoing prevention is the best way to avoid a repeat infestation. Mice are persistent and opportunistic, so prevention requires maintaining good habits year-round.

• Maintain sealed entry points. Inspect the exterior of your home twice a year (spring and fall) for new cracks, gaps, or deteriorating sealant. Pay attention to areas where pipes and wires enter the home, foundation edges, and garage door seals.
• Store food properly. Keep pantry staples in sealed glass or heavy plastic containers. Never leave food out on counters overnight, including fruit bowls. Store pet food in airtight bins.
• Keep your yard tidy. Remove wood piles, leaf debris, and dense ground cover near your foundation. These provide shelter for mice and easy access to your home.
• Trim vegetation away from the foundation. Keep shrubs, tree branches, and climbing plants at least 18 inches from exterior walls. Overgrown vegetation gives mice cover and climbing routes to upper-level entry points.
• Fix moisture issues. Leaky pipes, dripping faucets, and poor drainage attract mice looking for water sources. Repair plumbing leaks promptly and ensure downspouts direct water away from the foundation.
• Schedule regular inspections. If you have had a mouse problem before, a yearly inspection by a pest control professional can catch new activity early before it becomes a full infestation. Many companies offer annual inspection plans at a modest cost.

For more guidance on deciding between DIY and professional pest control, see our guide on when to call an exterminator.

Frequently Asked Questions