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Mice, Rats and Other Rodents

Ehlers Pest Management Eliminates Rodent Infestations Throughout Milwaukee, Racine & Kenosha

Mice Problem Milwaukee Pest ControlThe Milwaukee rodent control specialists at Ehlers Pest Management have extensive experience with rodent removal in commercial buildings, industrial buildings and homes. Our local exterminators will customize a rodent control program designed to rid your property of rats, mice, voles and any other pesky rodents that may have found their way inside.

All our rodent eradication plans are designed with the safety of humans, pets and the environment in mind. Our process begins with sanitation, exclusion and environmental modification. We may implement low-impact methods first, such as strategically placed traps, both nontoxic and mechanical. For larger mice infestations, such as those in large facilities, our Milwaukee-based exterminators may implement more intensive measures.

Mice and rodent infestations occur in homes and businesses everywhere. While some may think this is a only problem for people living in the inner city, our pest control specialists have dealt with rodent infestations in nice areas like Mequon, Whitefish Bay and Cedarburg almost as often as we have in areas like downtown Milwaukee, Kenosha and Racine.

Mice and other rodents can enter a home or business any time of the year, but they are far more likely to enter during the cooler fall months and in winter when they are actively seeking a warm shelter from the cold.

5 Tips To Prevent A Rodent Infestation:

  • Inspect the exterior of your home and seal any cracks, gaps or holes. Add screen to any vents or chimney openings.
  • Keep garbage bags inside trash cans with the lid on, both indoors and outdoors.
  • Pick up all fallen fruit from trees, dog litter, bird seed under feeders and anything else that ends up on the ground which can be used as food by rodents.
  • Fix any leaking pipes or clogged drain and keep your attic and basement well ventilated.
  • Discard any piles of old newspapers/magazines and cardboard you may have stored in your garage. Mice use these materials to build their nexts.

Because rodents have a pair of incisors in their upper and lower jaws that never stop growing, they have a propensity for gnawing. In fact, the word "rodent" is derived from the Latin "rodere", which means "to gnaw." Besides using their teeth to eat, they can gnaw through wood, plastic, fiberglass and even metal in their pursuit of food and a warm place to nest. The potential for destruction is enormous. Not only can they destroy the wood and insulation between your walls, but they can also destroy electrical wiring, drywall, carpet and furnishings.

In addition to the physical damage rodents can do inside your home, they can also spread over 35 diseases--most of which can be transmitted through contact with their feces or urine. If they nest in your HVAC ductwork, as many do, you'll be breathing in their waste every time your heater or air conditioner is running. All the more reason to contact our Milwaukee rodent exterminators if you're hearing the pitter patter of little mouse feet in your ductwork and walls, or if you see droppings anywhere in your house.

A word of caution to anyone considering buying mouse poison to get rid of a rodent problem: DON'T!

The trouble with using poisons to kill mice and rats is that the rodents doesn't instantly die after eating the poison. If one goes to a nest somewhere in your walls, you'll end up with a rotting rodent carcass in your walls. It's even worse if you have multiple dead rodents in your walls. The smell is so bad you'll have to hire someone to break open your walls and remove the dead rodents. Then you have a wall to get repaired.

Nasty as they are, you would be better off using the old fashioned mousetrap. (Just wear disposable gloves and don't attempt to reuse the trap--chuck the whole thing into a plastic trash bag.)

Are Ultrasonic Pest Repellers Effective On Mice And Rats?

Grey house mouse in WisconsinIt seems like a great idea—a small electronic device that emits high frequency sound waves to scare away mice and rats. No dead mice to pick up, and no guilt over killing a living creature. Unfortunately, these devices rarely ever perform as advertised.

Many an unwary home owner has purchased one of these units, plugged it in, and been amazed to see the telltale signs of mice are gone within a week. Only trouble is, the mice are back the week after next. Apparently, mice become used to the noise…or adept at avoiding it. Like light, sound waves can be blocked by furniture, boxes or other objects. So mice simply find alternate routes where the sound waves are blocked.

FTC Crackdown On Claims Made by Manufacturers

Back in 2001, the Federal Trade Commission began requiring the manufacturers of these devices to provide proof of any claim that they are effective. Suddenly, the claims made on the packaging of these products were toned down considerably. Today, not a single manufacturer can claim their product is 100% effective.

Best Way To Use Ultrasonic Pest Repeller

If you have an ultrasonic pest repeller, or want to give one a try, the best approach is to use it in conjunction with a trap. The ultrasonic waves get mice scurrying around, probably in an attempt to avoid the sound, and they seem to enter them in an attempt to avoid the sound waves. 

A word of caution, though: Anyone with a pet in the house may want to think twice about using one of these devices. They generate sounds at 25,000 hertz, which is just outside of our hearing range, but well within the range of what cats and dogs can hear (70,000 hz and 45,000 hz respectively). There are numerous reports of cats and dogs being noticeably disturbed by these high frequency noises.

Ultimately, An Experienced Exterminator Is Your Best Choice To Get Rid Of Mice

As professional exterminators, Ehlers Pest Management has access to a wide range of rodent control methods not available to the average homeowner. We use proven techniques and rodenticides, favoring those that are environmentally responsible and pet-friendly. You may think you have just a mouse or two that got in seeking shelter from the cold, but there may be an entire family of them in your walls or attic. If there is, we'll find them and get rid of them.

Some Really Disturbing Things You Should Know About Mice:

  • Mice leave 50-75 droppings every day
  • Mice have no bladder control and like to mark their territory, so they urinate virtually wherever they walk
  • Mice can carry over 35 diseases, most trasmittable through their urine and feces (See the preceding two points)
  • A single female mouse can give birth to 12 babies every three weeks--that adds up 150 baby mice in a year!
  • A mouse can wriggle through a hole or crack in your home’s foundation as small as 1/4”
  • If drain pipes aren't sealed properly, mice can get in your home through your sink and bathtub drain
  • Mice can climb about a foot up a smooth wall
  • Mice can jump up 18" from a floor onto an elevated surface
  • Mice can survive at temperatures as low as 24-degree F with adequate food and nesting material
  • Mice aren't discouraged by the presence of a cat in your home

Wisconsin Rodent Control Identification

Deer MiceWoman Afraid of Mouse

Like all mice species, deer mice are bicolored–light to reddish-brown tops and pure white feet and underbelly. Deer mice grow up to 2 inches long. Deer mice are named for their coats, resembling the color of a white-tailed deer’s. Deer mice love forested, rural areas, nesting in tree holes, under and inside logs, and in piles of branches, leaves, or stones. On the rare occasion they invade a home or building, deer mice prefer areas with the least amount of human activity, like basements, garages, attics and crawl spaces.

While deer mice appear cute and cuddly, they carry the deadly Hantavirus. Hantavirus is a respiratory disease often fatal to humans. Hantavirus is contracted by handling deer mouse carcasses and breathing in urine or feces-laden dust particles. While wearing proper protective gear will reduce your chances of contracting Hantavirus, hiring a certified rodent control specialist from Ehlers Pest Management is your safest defense for deer mice control.

House Mouse

The house mouse is light brown or light gray, growing up to 3 to 4 inches long with large ears, small eyes, and a pointed nose. Mice are found in both rural and urban areas throughout the country, nesting in stacked firewood and piles of leaves, stones and bricks. Smaller than rats, house mice can squeeze into buildings and homes through a ¼ inch opening. Once inside, they prefer nesting near heat, moisture, and food.

Norway Rats

Norway rats vary in color from black to brown to gray, growing between 10 and 12 inches long. Norway rats are comfortable nesting outside in fields, forests, farms, vacant lots and piles of leaves, firewood, stones, and bricks. Rodent home invasions usually occur in the fall when the seeds and plants rodents feed on are gone. Norway rats and other rodents come inside seeking new food sources. Like all rats, Norway rats are great climbers, entering homes and buildings through holes near soffit vents and cables, and through turbines and roof vents.

Roof Rats

Roof rats are gray, brown, or black, with body lengths ranging between 10 and 12 inches. While roof rats share many characteristics with their other rat relatives, their name derives from their preference for high places – trees, rafters, attics and roofs. Roof rats prefer rural areas like farms, fields and forests. Like other rat species, roof rat infestations usually occur in autumn when outdoor food and water sources dry up. All rats are awesome climbers, entering homes and buildings through holes around roofing vents, turbines and cables entering the building. Once in the home, roof rats nest in piles of firewood, in the insulation in attics and in-between walls.


Depending on the species, Voles are blackish-brown to grayish-brown and grow as large as 5 inches from head to body, with tail lengths ranging from 2 to 3 inches. Voles are poor climbers and usually nest in the lower levels of buildings. Voles create precision runways or tunnels just below the ground surface, preferring to live outdoors in dense meadows of fields. Homes and buildings near these fields are at the greatest risk for vole infestation and the resulting damage from the vole’s tunneling.

Contact our Milwaukee pest control company now to request a FREE estimate for rodent extermination services.