Scratching in the walls at 2 AM. Droppings in the pantry. A chewed-through cereal box. Rodents — mice and rats — are some of the most persistent pests in Iowa, and they get worse every fall when temperatures drop and they start looking for warm places to spend the winter. In Granger, with its mix of newer neighborhoods and rural properties, rodent pressure comes from all directions.
Miller Pest Solutions has been solving rodent problems across central Iowa since 2007. We don’t just set traps and hope for the best. We find how they’re getting in and shut it down.
Signs of a Rodent Infestation
Mice and rats are mostly nocturnal, but they leave plenty of evidence:
- Droppings: Mouse droppings are small, dark, and rice-shaped. Rat droppings are larger — about the size of a raisin. You’ll find them along walls, in cabinets, under sinks, and near food storage.
- Gnaw marks: Rodents chew constantly to keep their teeth worn down. Look for gnaw marks on food packaging, wood, plastic, and even electrical wiring — a serious fire hazard.
- Scratching or scurrying sounds: Noises in walls, ceilings, or attic spaces, especially at night, are a strong indicator.
- Nesting material: Shredded paper, fabric, insulation, or plant material gathered in hidden areas like behind appliances, in wall voids, or in storage boxes.
- Grease marks: Rodents follow the same paths repeatedly, leaving dark, oily rub marks along baseboards and around entry points.
Why Rodents Are Common in Granger
Granger’s location in Dallas County — surrounded by agricultural fields, grassland, and natural areas near Saylorville Lake — means there’s a large outdoor rodent population year-round. Field mice, deer mice, and Norway rats all inhabit the rural and semi-rural landscape around town.
Every fall, dropping temperatures trigger a migration toward warm structures. Mice can squeeze through a gap the size of a dime. Rats need slightly more room but are strong enough to gnaw through wood, soft concrete, and aluminum. Garages, attached sheds, and utility entry points are common access areas.
Iowa’s harsh winters make the problem worse. Once rodents are inside, they rarely leave voluntarily. A single pair of mice can produce 60+ offspring in a year. What starts as one mouse in October becomes a full infestation by January.
Our Rodent Control Process
Trapping alone doesn’t solve a rodent problem if the entry points stay open. Our approach is comprehensive:
- Thorough assessment: We check the full exterior — foundation gaps, pipe penetrations, garage door seals, soffit vents, utility line entries — and the interior for signs of activity and nesting.
- Trapping and removal: We set professional-grade traps in strategic locations based on rodent travel patterns. Snap traps, not poison, are our go-to for interior work. Safer for kids and pets.
- Exclusion: This is the critical step most pest companies skip or upcharge heavily for. We seal entry points with steel wool, metal flashing, hardware cloth, and other rodent-proof materials. If they can’t get in, they can’t infest.
- Sanitation guidance: We identify food sources and storage issues that make your home attractive to rodents and give you practical fixes.
- Follow-up monitoring: We check traps, confirm activity has stopped, and address any new entry points that may appear.
Why Choose Miller Pest Solutions
Joel Miller started this company in 2007 because he wanted to do pest control the right way. We’re QualityPro Certified and NPMA members — and for rodent work, that training matters. Proper exclusion is a skill. Knowing where mice enter, how rats behave, and what materials actually keep them out separates effective rodent control from a revolving door of re-infestation.
We’ve handled rodent problems in every type of property across the Des Moines metro — from brand-new Granger homes to century-old farmhouses. Every job gets the same level of attention.
Get a Free Phone Bid Today
Hearing things in the walls? Finding droppings? Call Miller Pest Solutions at (515) 410-0149 for a free phone bid. We’ll talk through what you’re experiencing, explain the process, and get a technician out to your Granger home quickly.
Learn more at millerthekiller.com.

