The short version
Most rodent jobs in Ann Arbor cost a few hundred dollars up to about $1,500. That usually covers inspection, trapping and sealing. Attic cleanup is extra.
- Most rodent jobs in Ann Arbor cost a few hundred dollars to about $1,500.
- Inspections usually cost $75–$250.
- Sealing the gaps is what keeps rodents out.
- Attic cleanup is usually priced separately.
- Compare what each quote seals, not just the total.
Homeowners, renters and landlords in Ann Arbor who are hearing, seeing or smelling signs of rodents.
What to look for
For Ann Arbor homes, mice usually start moving indoors in September and October, as nights get colder. Seeing one in daylight usually means there are more. Rodents are mostly unseen. You hear them at night and find droppings by morning. A mouse fits through a gap the size of a dime.
- 1Bait or pet food vanishing from bowls overnight.
- 2Pipe gaps stuffed with debris or looking chewed wider.
- 3Fresh gnaw marks on door corners or garage weatherstripping.
- 4Dead-animal odor that appears and slowly fades.
- 5Small dark droppings on top of the water heater.
- 6Shredded paper, fabric, or insulation gathered into a nest.
Why it’s worth acting soon
- Mice breed fast, every few weeks.
- Droppings and urine contaminate food and insulation.
- Gnawed wiring can be a fire risk.
- Nests and odor get harder to clean the longer they stay.
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Estimate rodent control cost in Ann Arbor
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Your quote depends on your house and what the inspection finds.
Treatment options and typical costs
Inspection and Entry-Point Mapping
$75–$250
Many credit the fee if you go ahead. Ask. Ask whether the report lists every entry point, because in Ann Arbor that list is the real product.
- Time
- 60–90 minutes
- Best for
- Every job; nothing else works without it
Attic and Crawlspace Cleanup and Sanitation
$500–$3,000, higher if insulation is replaced
Droppings can carry hantavirus, so never sweep or vacuum them dry. Ann Arbor pros wet everything down with disinfectant first and use respirators and HEPA-filtered equipment.
- Time
- Half day to two days
- Best for
- Heavy contamination; odor, urine-soaked insulation, nesting
Snap-Trap Program
$150–$400 per visit
Placement matters more than bait. Rodents run along edges, so traps in Ann Arbor attics and kitchens go perpendicular to walls, in the dark corners where droppings cluster.
- Time
- 30–60 minutes per visit, 2–4 visits
- Best for
- Active indoor infestations; fast results you can see
Sealing and Rodent-Proofing
$200–$1,500, more for large or complex homes
Ask for a walkthrough of every sealed point, plus photos. A good Ann Arbor company will photograph each repair so you know what was done and where to look later.
- Time
- 2–6 hours, sometimes a full day
- Best for
- Stopping re-entry for good; the lasting fix
Prices are typical published ranges. Ask what’s included before you compare quotes.
Bathroom vanities hide the same plumbing gaps as the kitchen. A quick look with a flashlight shows droppings or rub marks long before you see a mouse.What rodent control costs in Ann Arbor.
- Attic and Crawlspace Cleanup and Sanitation: $500–$3,000, higher if insulation is replaced - Snap-Trap Program: $150–$400 per visit - Sealing and Rodent-Proofing: $200–$1,500, more for large or complex homes - A typical home in Ann Arbor is worth around $450k. Sealing the gaps protects that, and it's the part that lasts. Basement homes need utility gaps and window wells sealed. - Inspection and Entry-Point Mapping: $75–$250
Which rodents live around Ann Arbor.
Norway rats are the other usual suspect. They burrow along foundations and enter low. House mice are the most common rodent in Ann Arbor homes. They're small, curious and breed quickly.
This is what a proper seal looks like: metal mesh fastened with screws and sealed at the edges. Foam or caulk on its own gets chewed through.When they move in.
Check for gaps before then. Spring is breeding season. Small problems grow fast.
How they get into houses here.
Look at the dryer vent flap. Window wells need covers or screens. Homes from Ann Arbor out to Westland and Livonia share the same weak spots, so the checklist below works across the area. Plenty of homes in Ann Arbor have basements. Rodents use gaps around utility lines, dryer vents and window wells. Check where pipes and cables enter.
A year of rodents in Ann Arbor.
- Spring: breeding season. Act on any sign quickly. - Summer: with highs around 83°F in Ann Arbor, rodents look for water. Fix drips and leaks. - Fall: mice move indoors as nights cool. Seal gaps in September. - Winter: with lows near 17°F in Ann Arbor, check the attic, garage and pantry for droppings.
Mice or rats?
- Sounds: mice sound light and quick. Rats sound heavier. - Behavior: mice are curious about new traps. Rats avoid them for days. - Rub marks: rats leave greasy smudges along walls and beams. - Droppings: mouse droppings are rice-sized. Rat droppings are two or three times bigger. - Holes: mice chew dime-sized holes. Rats chew holes closer to quarter-sized.
Sealing small gaps yourself.
- Hardware cloth: use quarter-inch mesh over vents and larger holes. - Door sweeps: close the gap under garage and exterior doors. - Expanding foam: fine on top of mesh, useless on its own. - Check your work: daylight through a gap means it isn’t sealed. - Steel wool or copper mesh: pack it into small gaps first. - Sealant or mortar: cover the mesh so it stays put.
Cleaning up droppings safely.
- Spray droppings with a bleach solution, then wait five minutes. - Wipe up with paper towels and bag them. - Don’t sweep or vacuum droppings dry. It stirs up dust. - Wash your gloved hands, then your hands. - Air the room out for 30 minutes first. - Wear rubber or plastic gloves.
What happens at an inspection.
Most inspections take about an hour. The inspector walks the outside first. They check the foundation, vents, rooflines and utility gaps. Inside, they check the kitchen, garage and attic. You should come away with a list of entry points. Photos help.
Rodents in the car.
Mice and rats nest in engine bays and chew wiring. Park in a closed garage when you can. Check the air filter box for nesting. Clear birdseed and pet food from the garage.
Bird feeders and rodents.
Spilled seed feeds mice and rats. Use a seed tray and sweep up spills. If rodents show up, bring feeders in at night. Store seed in a metal can with a tight lid.
Questions to ask before you sign.
- How many trap visits are included? - What happens if they come back? - Is cleanup included, or extra? - Will you use poison inside? (Ask them not to.) - Where are they getting in? - Which gaps will you seal, and with what?
Ways to keep the cost down.
- Trim branches back from the roof. - Act early, before rodents spread to the attic. - Compare what each quote seals, not just the price. - Clear clutter so gaps are easy to reach. - Store food and pet food in sealed bins.
Rodents by the numbers.
For Ann Arbor homes, those three findings — species, entry points, and scale — are what a quote should be built on, not a regional average. For Ann Arbor homes, ask any provider to show you the entry points and the plan before you compare numbers. National surveys set rough expectations but cannot diagnose one house. For Ann Arbor homes, what actually matters is a walk-through: where the droppings are, how the rodents are getting in, and how large the colony is.
What affects the price
- Age of the home and condition of the foundation.
- Materials used for sealing: mesh, sheet metal, mortar.
- Emergency or short-notice scheduling.
- Home size, stories, and roofline complexity.
- Number of entry points found during inspection.
- Local labor rates and licensing costs.
- Whether sheds, garages or other outbuildings are included.
- Exterior bait stations and ongoing service frequency.
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What's your biggest concern about rodent control costs?
When to call for help
Call right away if you see rats. They take a longer, more careful approach. Attic cleanup is hard to do safely without training. Call if you hear them in the attic or walls. Droppings in several rooms are another sign. So is a dead-rodent smell.
What you can do yourself
That's where a pro's sealing work pays off. Rooflines, vents and attics are harder. Seal small gaps with steel wool and sealant. Store food in sealed bins. Bait them with peanut butter. Start tonight with snap traps along the walls.
Rodents in Ann Arbor
In denser parts of Ann Arbor, rats travel along alleys, fences and utility lines, so neighbors often share the problem. A typical home in Ann Arbor is worth around $450k, and chewed wiring or soiled insulation can get expensive. With about 36 inches of rain a year, Ann Arbor gives rodents plenty of water, so food and shelter are what you control. Winter lows average around 17°F in Ann Arbor, and that cold is what sends mice looking for a way in.
Local research
Rodents in Ann Arbor, MI: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in Michigan, when they are busiest around Ann Arbor, and what the state figures look like. Everything below links to the agency or university page it came from.
Rodent species recorded in Michigan
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Deer mouse (Peromyscus maniculatus) — Primary U.S. hantavirus carrier; lives throughout Washington and the interior West.
When rodents are busiest around Ann Arbor
Rodents push into Michigan structures in fall; hantavirus exposure clusters in spring and summer cleanouts.
Michigan had no confirmed human hantavirus case until 2021, so the routine risk is contamination and structural damage.
For context, nationally
- 1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
- 890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC
Sources: Michigan Department of Health and Human Services; CDC; Pest Notes: House Mouse; Pest Notes: Rats; Hantavirus. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep rodents away
- Keep ivy, shrubs, and firewood away from the foundation.
- Seal the gap where the garage slab meets the wall.
- Fill gaps around pipes, cables, and AC lines with copper mesh.
- Install brush or rubber door sweeps on exterior doors.
- Insert metal weep-hole guards in brick veneer.
- Screen foundation and attic vents with quarter-inch hardware cloth.
A good rodent quote lists the inspection, the number of trapping visits, each opening to be sealed and the material for it, and any cleanup.Did you know?
For Ann Arbor homes, rats are strong swimmers and can tread water for a long time, which is why they sometimes travel sewer lines.
For Ann Arbor homes, rats make ultrasonic chirps when they're tickled, which researchers compare to laughter.
Questions people ask
Is a quarterly rodent plan worth it?
Homes near fields or water benefit most. For a one-time issue, a single sealing job is often enough. It can be, after repeat problems.
What do exterior bait stations cost?
Usually a setup fee plus a monthly or quarterly service charge. Ask how many stations they'll use and how often they're checked.
Can I lower the cost by doing some work myself?
Trim branches off the roof. That makes the sealing faster. Yes. Clear garage clutter.
Does home size change the price?
Bigger houses have more walls and roofline to seal. Attics and crawl spaces add time too. Yes.
What does a rodent inspection involve?
Inside, they look at the kitchen, attic, garage and under sinks. You should get a list of entry points. The inspector checks the outside walls, roofline, vents and utility gaps.
How do I choose a rodent control company?
Ask what happens if rodents come back. A good company talks about sealing, not just traps. Make sure they're licensed in Michigan. Ask how they seal gaps and what materials they use.
Are rats a bigger problem than mice?
Rats are bigger, chew more, and avoid new traps for days. They also tend to need more sealing work outside. Usually.
How common are rodent problems in U.S. homes?
homeowners told a September 2022 Harris Poll for the National Pest Management Association (NPMA) that they had encountered or had a problem with rodents at some point. For an Ann Arbor home, the next step is an inspection that tracks down where they're coming from. Very common. Forty-nine percent of U.S.
Where in the house are mice most often found?
homeowners, 37% reported a sighting in the kitchen. Ask every Ann Arbor company you get a quote from what they tend to find in your part of town. The kitchen leads. Among homeowners who had ever encountered rodents in the National Pest Management Association's (NPMA) September 2022 Harris Poll of more than 1,300 U.S.
Are rodents a problem in Ann Arbor?
They're common here, as almost everywhere. House mice cause most problems.
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Sources (10)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Rodent Exterminator · Updated September 11, 2026 · How we write these guides