Home Mouse Control

Signs of Mice

Deer Mouse (Peromyscus Maniculatus)

Although mice can live outdoors, mice, in general, are attracted inside our homes for shelter and food during the fall and winter season.

Generally mice, won’t be seen during the day as they are nocturnal and therefore looking for signs of mice, may be a safer bet for confirming if you do have an existing problem.

Looking for the evidence they leave behind rather than the actual mice, is also often far easier than trying to catch a glimpse of the rodent to identify the species invading your home.

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Do you think you have mice? Then don’t waste time. Call Ehrlich at for a free mouse inspection of your home. A technician will thoroughly inspect home for all signs of mice and provide you with a recommended pest control program. 

Signs of Mice in Your Home

Signs of Mice in Your Home

Of course not all mouse infestations are exactly the same. Nevertheless, there are a number of common signs and indicators you can look for to help determine if you have a mouse problem in your home.

  • Mouse droppings – Usually the most easily identifiable sign of mice in any home. Mice produce a lot of droppings throughout the day and they're usually found along walls, in cupboards or under sinks. They are the size of a grain of rice, pointed at one or both ends and typically brown to black in color. The average length of a House mouse’s dropping is ¼ inch.
  • Dirty Smudges – Look for dirty smudges on floors or skirting boards. Mice tend to run alongside walls as they don’t have great eyesight and they tend to stick to the same route too. Over time the increased contact from their fur and body along the same stretch of wall leads to distinctive marks. You might also notice small patches of urine along the same route.
  • Distinctive Smell – Noticed a funny smell recently? The presence of mice may also be established through a distinctive ammonia-like smell (very strong urine smell) that will be particularly obvious in more enclosed areas such as in cupboards. The smell helps mice orientate inside a home as it is often stronger along established routes and acts as a marker for their territory.
  • Mouse damage – Mice damage can include damage to furniture and wiring as well as to stored foods and other readily available food sources, leading to food contamination from their feces, urine or fur, which may cause Salmonella or rodent related diseases.
    • Mice have teeth that grow continuously and they need to gnaw on wood, plastic, cables and other hard materials to keep their teeth shorter. This is also the reason why mice can be seen as a fire hazard, as they are able to chew through electrical cables causing equipment malfunctions and power shortages.
    • In terms of food damage, they can make up to 20-30 visits per day to an identified food site. Adults will consume between 3 and 4 grams of food in one day and they prefer cereal grains, seeds, nuts, meats and candies. It is also important to note that they are fond of foods high in fat too, such as nuts, bacon, butter and sweets.
  • Scratching noises Listen out for unusual or unfamiliar noises, especially at night when mice are most active. You may hear scratching noises in the walls or noises coming from ceilings above your head as mice scurry around. You might also hear them squeaking or gnawing.
  • Mouse nests – Keep a look out for nests. Mice build nests with shredded material such as newspaper and fabrics. Nests tend to be in hidden places such as behind fridges, voids in walls, ceilings, cabinets and storage boxes etc., and relatively close to food sources. Nests will often contain young mice.

Still not sure if you have a mouse problem? Let Ehrlich take a look for you! Call us free at (888) 976-4649 or arrange a free mouse inspection online today.

Checking for Signs of Mice

Image of Bill Ritz - Senior Pest Control Technician | Ehrlich Pest Control

Below are some of our tips to help you find out if you have a mouse infestation:

  • Lay some talcum powder or plain flour along the edge of the floor by the walls or on surfaces close to where you think the nest might be. You’ll notice tracks in the powder within a few days if the nest is close.
  • If you can hear mouse activity in the walls this can be a good indicator of where the nest is; mice tend to stay as close to the nest as possible even when foraging for food.

Do not leave mice to chance! 

You can take advantage of Ehrlich’s Year Round Protection Plan (YRPP) to help guard your home against unwanted mice and many other common household invaders.

Call Ehrlich Pest Control free at for further advice on mice or to arrange a free pest inspection. If you suspect you already have mice, find out more about how to get rid of mice in your home.

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