The short version
Trap the ones inside, then seal the gaps. An inspection usually costs $75–$250.
- Look for droppings, gnaw marks and night-time scratching.
- Around Laramie, mice usually start moving indoors in September and October, as nights get colder.
- Traps remove them; sealing keeps them out.
- Never sweep or vacuum droppings dry.
Homeowners, renters and landlords in Laramie who are hearing, seeing or smelling signs of rodents.
What to look for
A mouse fits through a gap the size of a dime. Seeing one in daylight usually means there are more. Rodents are mostly unseen. You hear them at night and find droppings by morning.
- 1Dead-animal odor that appears and slowly fades.
- 2Shredded paper, fabric, or insulation gathered into a nest.
- 3Burrow holes along the foundation, deck, or shed.
- 4Food scattered or hollowed-out fruit and nuts.
- 5Small dark droppings on top of the water heater.
- 6A musky or ammonia-like smell in closed rooms.
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.
- Deer mice can carry hantavirus.
Treatment options and typical costs
Inspection and Entry-Point Mapping
$75–$250
Skipping this step is why so many homeowners buy traps twice. A proper Laramie inspection finds the gap you cannot see from the ground, usually up high or under the deck.
- Time
- 60–90 minutes
- Best for
- Every job; nothing else works without it
Tamper-Resistant Exterior Bait Stations
$100–$300 setup, $40–$80 per service visit
Locked bait stations around a Laramie home's perimeter reduce the outdoor rat population before it reaches the walls. Anchored and locked, they keep children, pets, and wildlife out.
- Time
- 30–45 minutes per visit, ongoing
- Best for
- Outdoor rat pressure; ongoing perimeter protection
Sealing and Rodent-Proofing
$200–$1,500, more for large or complex homes
Price depends on how many openings the Laramie inspection found and how hard they are to reach. A Laramie ranch on a slab is cheaper to seal than a two-story home with a crawlspace and complex rooflines.
- Time
- 2–6 hours, sometimes a full day
- Best for
- Stopping re-entry for good; the lasting fix
Follow-Up Monitoring
$50–$150 per visit, or included in a plan
A good follow-up visit is short but thorough. The pro walks the Laramie home's sealed points, checks any exterior stations, and updates you on what they found.
- Time
- 20–40 minutes per visit
- Best for
- Confirming the house stays clear after treatment
Prices are typical published ranges. Ask what’s included before you compare quotes.
Crawl spaces are where rats and mice get comfortable. Vent screens, the sill plate and any gap around pipes are worth a careful look.Which rodents live around Laramie.
They can carry hantavirus, so clean up their droppings carefully. Deer mice live around Laramie too, mostly near open land and in sheds or cabins. They burrow along foundations and enter low. Norway rats are the other usual suspect. They're small, curious and breed quickly. House mice are the most common rodent in Laramie homes.
When they move in.
Spring is breeding season. Check for gaps before then. Small problems grow fast.
A good inspection starts outside at ground level: door thresholds, the joint between siding and foundation, and anywhere a pipe or cable enters.How they get into houses here.
Check where pipes and cables enter. Rodents use gaps around utility lines, dryer vents and window wells. Plenty of homes in Laramie have basements. Window wells need covers or screens. Look at the dryer vent flap.
A year of rodents in Laramie.
- Fall: mice move indoors as nights cool. Seal gaps in September. - Summer: with highs around 80°F in Laramie, rodents look for water. Fix drips and leaks. - Spring: breeding season. Act on any sign quickly. - Winter: with lows near 11°F in Laramie, check the attic, garage and pantry for droppings.
Mice or rats?
- Droppings: mouse droppings are rice-sized. Rat droppings are two or three times bigger. - Rub marks: rats leave greasy smudges along walls and beams. - Behavior: mice are curious about new traps. Rats avoid them for days. - Sounds: mice sound light and quick. Rats sound heavier. - Holes: mice chew dime-sized holes. Rats chew holes closer to quarter-sized.
Sealing small gaps yourself.
- Steel wool or copper mesh: pack it into small gaps first. - Check your work: daylight through a gap means it isn’t sealed. - Expanding foam: fine on top of mesh, useless on its own. - Door sweeps: close the gap under garage and exterior doors. - Hardware cloth: use quarter-inch mesh over vents and larger holes. - Sealant or mortar: cover the mesh so it stays put.
Cleaning up droppings safely.
- Air the room out for 30 minutes first. - Wash your gloved hands, then your hands. - Don’t sweep or vacuum droppings dry. It stirs up dust. - Wipe up with paper towels and bag them. - Spray droppings with a bleach solution, then wait five minutes. - Wear rubber or plastic gloves.
What happens at an inspection.
They check the foundation, vents, rooflines and utility gaps. The inspector walks the outside first. Most inspections take about an hour. Photos help. You should come away with a list of entry points. Inside, they check the kitchen, garage and attic.
Rodents in the car.
Park in a closed garage when you can. Mice and rats nest in engine bays and chew wiring. Clear birdseed and pet food from the garage. Check the air filter box for nesting.
Bird feeders and rodents.
Use a seed tray and sweep up spills. Spilled seed feeds mice and rats. Store seed in a metal can with a tight lid. If rodents show up, bring feeders in at night.
Questions to ask before you sign.
- Where are they getting in? - Will you use poison inside? (Ask them not to.) - Is cleanup included, or extra? - What happens if they come back? - How many trap visits are included? - Which gaps will you seal, and with what?
Rodents by the numbers.
Around Laramie, ask any provider to show you the entry points and the plan before you compare numbers. Around Laramie, those three findings — species, entry points, and scale — are what a quote should be built on, not a regional average. Around Laramie, what actually matters is a walk-through: where the droppings are, how the rodents are getting in, and how large the colony is. National surveys set rough expectations but cannot diagnose one house.
What affects the price
- Number of trapping visits needed to reach zero.
- Exterior bait stations and ongoing service frequency.
- Outdoor pressure from creeks, alleys, or restaurants nearby.
- Whether insulation must be removed and replaced.
- Home size, stories, and roofline complexity.
- Number of entry points found during inspection.
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What's your biggest concern about rodents?
When to call for help
Attic cleanup is hard to do safely without training. They take a longer, more careful approach. Call right away if you see rats. So is a dead-rodent smell. Droppings in several rooms are another sign. Call if you hear them in the attic or walls.
What you can do yourself
Start tonight with snap traps along the walls. Bait them with peanut butter. Store food in sealed bins. Seal small gaps with steel wool and sealant. Rooflines, vents and attics are harder. That's where a pro's sealing work pays off.
Rodents in Laramie
In Laramie's neighborhoods, woodpiles, fences, bird feeders and gardens draw rodents close to the house. A typical home in Laramie is worth around $315k, and chewed wiring or soiled insulation can get expensive. Laramie only gets about 11 inches of rain a year, so local rodents look for water: drip lines, pet bowls and leaky hose bibs. Winter lows average around 11°F in Laramie, and that cold is what sends mice looking for a way in.
Local research
Rodents in Laramie, WY: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in Wyoming, when they are busiest around Laramie, and what the state figures look like. Everything below links to the agency or university page it came from.
Share of hantavirus infections that are fatal
The Wyoming Department of Health puts the fatality rate for respiratory cases at roughly 38-40 percent.
Wyoming Department of HealthRodent species recorded in Wyoming
- 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 Laramie
Spring cleaning of cabins, garages and outbuildings is the flagged exposure window.
Wyoming's rodent risk is the rural deer mouse in outbuildings more than the urban rat.
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: Wyoming Department of Health; Wyoming Department of Health, Infectious Disease Epidemiology Unit; 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
- Check crawlspace doors and vents for chewed openings each fall.
- Keep garbage in lidded cans and pick up fallen fruit.
- Stack firewood off the ground and away from the house.
- Cover dryer and exhaust vents with metal louvered covers.
- Keep grass short and remove tall weeds along fences.
- Store pantry staples in glass or hard plastic.
In a multi-unit building, mice move between apartments through shared walls and pipe chases, so treating one unit rarely solves it. Ask for a building-wide plan.Did you know?
Around Laramie, rats make ultrasonic chirps when they're tickled, which researchers compare to laughter.
Around Laramie, the word rodent comes from the Latin rodere, which means to gnaw.
Questions people ask
Are snap traps better than poison?
Poisoned rodents can die inside walls and smell for weeks. Bait belongs in locked stations outside. Indoors, usually yes. Traps let you confirm the catch and remove it.
Why do rodents keep coming back every year?
Traps remove the rodents inside. New ones follow the same path in. Usually because the entry points were never sealed.
Is it safe to clean up droppings myself?
Never sweep or vacuum them dry. Deer mice here can carry hantavirus. Take extra care in sheds. For small amounts, yes, with care. Wear gloves and spray the droppings with a bleach solution. Wait five minutes, then wipe up with paper towels.
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.
Will rodents leave on their own?
Rarely. Once they've found food, water and a warm nest, they stay.
How common are rodent problems in U.S. homes?
homeowners, 49% said they had ever dealt with rodents. Before any work starts in Laramie, ask how many visits the price covers and what happens if rodents return. Very common. In a Harris Poll conducted for the National Pest Management Association (NPMA) in September 2022, covering more than 1,300 U.S.
Which parts of the U.S. have the most rodent problems?
Where you live matters: reported rodent signs ranged from 3.1% to 18.9% of homes across the large metros in the U.S. Census Bureau's 2019 American Housing Survey (AHS). Older, denser metros in the Northeast report far more.
Are rodents a problem in Laramie?
They're common here, as almost everywhere. House mice cause most problems.
Nearby cities
Related guides
Sources (11)
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