Rodent Control
We control mice and rats with a trap-and-remove program plus exclusion — sealing the entry points that let them back in. Exclusion is the step most companies skip and the reason infestations recur.
When the nights turn cold in Central New York — usually starting in October — mice and rats move toward the warmth of your home, and they only need a gap the width of a pencil to get in. Our older housing stock makes it easy: fieldstone foundations, gaps around sills and utility lines, and unsealed crawlspaces are standard across Ithaca, the rural towns, and lake properties. Once inside, mice breed quickly and chew through insulation, stored goods, and wiring, which is both a fire risk and an expensive one.
The difference between a temporary fix and a permanent one is exclusion. Trapping clears the mice that are already inside; sealing the entry points is what keeps the next wave out. Most companies stop at trapping — we treat sealing as the core of the job, and we offer full exclusion as its own service for homes with ongoing entry problems.
What exclusion actually involves
Exclusion is the part of rodent work most companies skip, and it is the part that makes results last. It means finding and sealing every gap a rodent can use — and a house mouse can compress through an opening about a quarter inch wide, roughly the diameter of a pencil. In Central New York's older homes, the usual suspects are the gaps where the wood framing meets the stone or block foundation, the holes drilled for water, gas, electric, and cable lines, worn door sweeps, unscreened crawlspace and gable vents, and the roofline where dormers and additions meet the original structure.
Sealing these properly is not a matter of stuffing steel wool in a hole. Durable exclusion uses rodent-proof materials — hardware cloth, sealed metal flashing, and appropriate sealants — installed so they hold up to gnawing and weather. Done well, it also improves the home's energy efficiency, because the same gaps that let mice in let heat out. That is why we treat sealing as the core of the job rather than an upsell, and offer full exclusion as its own service for homes with widespread entry issues.
The alternative — trapping alone — is a treadmill. Every fall, cold weather pushes a new group of rodents toward the warmth, and if the openings are still there, they simply replace the ones you removed. Clearing the current population buys relief; sealing the entries is what ends the annual cycle for good.
Signs of a rodent problem
- Droppings along walls, in cabinets, in drawers, or in the silverware — small and dark for mice, larger for rats.
- Scratching or scurrying sounds in walls and ceilings at night.
- Gnaw marks on food packaging, baseboards, or wiring.
- Nests of shredded paper, insulation, or fabric in attics, basements, or behind appliances.
- A musky ammonia odor in an enclosed space with heavy activity.
How we treat it
- 1
Inspection
We find how they're getting in — the entry points matter more than where you're seeing droppings. We check the foundation, sill, utility penetrations, roofline, and attic.
- 2
Trapping & removal
We set a professional trapping program to clear the active population quickly, placed where rodents actually travel.
- 3
Exclusion sealing
We seal entry points with rodent-proof materials — the step that turns a temporary fix into a lasting one. This is available as its own service for larger jobs.
- 4
Sanitation guidance
We advise on cleanup of droppings and nesting material, which carry health risks and also leave scent trails that attract more rodents.
- 5
Follow-up & monitoring
We return to remove trapped rodents, confirm the entry points are holding, and monitor for any new activity.
What to expect
- The first visit focuses on trapping and identifying entry points; sealing may be scheduled as follow-up depending on scope.
- Activity should drop noticeably within the first week or two as the resident population is cleared.
- We'll show you the entry points we find so you understand what's being sealed and why.
- For recurring rodent pressure — common in rural and lake homes — we can fold monitoring into a preventative plan.
Seasonality in Central NY
- Fall (Sep–Nov) is peak season: the first cold snaps drive mice and rats indoors across CNY. Sealing before winter is the single most effective thing you can do.
- Winter (Dec–Mar): rodents already inside stay active in walls, attics, and basements, breeding in the warmth even when it's freezing outside.
- Spring and summer: outdoor populations rebuild in fields, woodpiles, and outbuildings, setting up the next fall push. Exclusion done now prevents the fall problem.
What it costs
Rodent jobs are priced by the size of the home, the severity of the infestation, and how much exclusion sealing is involved. A straightforward trapping visit is one price; full exclusion of an older home with many entry points is a larger, longer-lasting investment.
We'll always tell you honestly whether trapping alone will hold or whether sealing is needed to actually end the problem — we don't sell exclusion you don't need, and we don't pretend traps alone will fix a home full of gaps.
How to prevent it
- Seal gaps around utility penetrations, dryer vents, and the foundation sill before fall.
- Keep firewood, brush, and bird seed away from the house.
- Store pantry and pet food in sealed metal or glass containers.
- Trim back branches that give roof and attic access, and screen chimney and gable vents.
How to tell what's in your walls
The first question is usually mice or rats, and the droppings answer it quickly. House-mouse droppings are small — about the size of a grain of rice — dark, and scattered wherever the mice travel and feed. Rat droppings are noticeably larger, capsule-shaped, and fewer in number. In Central New York homes, house mice are by far the most common indoor rodent, with the occasional Norway rat closer to farms, older neighborhoods, and areas near water. Deer mice — bicolored, with a white belly and feet — turn up in more rural and wooded settings and are the ones associated with hantavirus.
Beyond droppings, rodents leave a consistent trail of evidence. Gnaw marks on baseboards, food packaging, and wiring; greasy, dark rub marks along the runways they use repeatedly against walls and joists; shredded insulation, paper, or fabric gathered into nests; and the scratching or scampering sounds in walls and ceilings that many homeowners hear first, usually at night. A sudden musky, ammonia-like odor in a concentrated area can indicate an active nest nearby.
Where you find the evidence matters as much as what it is. Activity concentrated in the kitchen and pantry points to a food-driven interior population; evidence along the sill, in the basement, or where an addition meets the original structure points toward the entry route you'll want to seal. Reading that pattern — what kind of rodent, how many, and where they're getting in and traveling — is the difference between setting a few traps and actually closing the problem down.
The Central New York fall mouse invasion
If there is one predictable pest event in the Finger Lakes calendar, it is the fall push of mice indoors. As soon as night temperatures start dropping in September and October, house mice and deer mice begin testing the outside of every building for a way in, looking for warmth and food to overwinter. Homes near fields, woods, creeks, and farmland feel this hardest, but no house is immune — a mouse can slip through a gap the size of a dime, and older CNY foundations offer plenty of them.
Our housing stock makes the problem worse. Fieldstone and block foundations, stone-walled basements, gaps around sill plates, utility penetrations, and worn door sweeps all give rodents easy access, and a century of freeze-thaw cycles has opened new gaps over time. Attached garages, porches, and additions create even more entry points where two structures meet. Once inside, mice settle into wall voids, insulation, and quiet basement corners, and they stay active there all winter even when the outdoor population goes dormant.
This seasonality is exactly why timing matters so much. A home sealed and treated before the October push is a home that stays quiet through the winter; a home that waits until it hears scratching in January is already hosting a breeding population. Fall exclusion — finding and closing the entry points, not just setting traps — is the single most valuable rodent step for a Central New York property.
Why rodents are more than a nuisance
Mice and rats are a legitimate health and safety issue, not just an unsettling one. They contaminate food-storage and prep areas with droppings and urine as they travel, and their waste can carry pathogens. Deer mice, common in rural and semi-rural CNY, are associated with hantavirus, which is why disturbing droppings in an enclosed space like a basement or crawlspace without proper precautions is genuinely risky. Cleanup should be done carefully, and heavy contamination is a job for professionals.
The property risk is just as real. Rodents gnaw constantly to manage their ever-growing incisors, and wiring is a frequent target — chewed insulation on electrical lines is a documented fire hazard that home insurers take seriously. They also destroy stored belongings, shred insulation for nesting, and their droppings and urine leave lingering odor and staining in walls and attics.
Because rodents breed quickly, the gap between 'a mouse' and 'an infestation' is short. A pair can become a population within a season, which is why the calculation almost always favors dealing with the first signs — droppings, gnaw marks, scratching in the walls at night — rather than waiting to see whether it 'goes away.' It rarely does on its own.
Why exclusion beats a handful of traps
The reason DIY rodent control so often turns into a recurring winter ritual is that traps and bait address the mice that are already inside, but do nothing about the doorway that let them in. Catch a few, and the open gap simply admits the next few. Effective rodent work is built around exclusion: systematically finding and sealing the entry points — utility penetrations, foundation gaps, sill and door gaps, the seams where additions meet the original structure — so the problem is closed off rather than continuously restocked.
There is also a safety and placement dimension that matters, especially in homes with children and pets. Professional programs use tamper-resistant bait stations and correct placement in the runways rodents actually use, rather than loose bait or randomly set traps. Knowing where rodents travel, harbor, and enter — reading the droppings, rub marks, and gnaw evidence — is most of the skill, and it is what turns a temporary knock-down into a lasting fix.
Finally, rodent work benefits from follow-up. We monitor after the initial treatment to confirm the population is actually down and the entry points are holding, and we address any new activity before it re-establishes. That combination — exclusion first, controlled baiting or trapping second, and monitoring to confirm — is what ends the cycle instead of managing it forever.
Frequently asked questions
Do you seal entry points or just set traps?
Both — and sealing is the part that lasts. Trapping clears the current population; exclusion sealing keeps new rodents out. For homes with many gaps we offer full exclusion as its own service.
How are mice getting into my house?
Mice fit through a gap the size of a pencil. In Central New York's older homes that usually means the foundation sill, utility line penetrations, gaps under doors, and roofline or gable-vent openings. We find and show you the specific entries.
How long does it take to get rid of mice?
You'll usually see activity drop within the first week or two of trapping. Ending it for good depends on sealing the entry points so the next wave can't replace the ones you removed.
Is rodent contamination dangerous?
Yes. Droppings and urine can carry disease and trigger allergies, and rodents gnaw wiring, which is a fire risk. We advise on safe cleanup and never recommend vacuuming or sweeping dry droppings.
Why do the mice keep coming back every fall?
Because the entry points are still open. Trapping without sealing just clears space for the next group when cold weather pushes them in. Exclusion is what breaks the annual cycle.
Do you handle rats as well as mice?
Yes. Rats are less common than mice in most of CNY but do occur, especially near water, farms, and older urban areas. The approach is similar — remove, then seal — with heavier-duty materials.
Can you get rodents out of the attic?
Yes. We trap and remove attic rodents, seal the roofline and vent entries they're using, and can address contaminated insulation as an add-on (attic restoration).
Are the traps safe around pets and kids?
We place traps in areas rodents travel but people and pets don't reach, and we can use tamper-resistant stations where needed. We'll talk through placement so everyone's comfortable.
I only saw one mouse — do I really need to do anything?
Usually yes. Mice are social and breed quickly, so a single visible mouse in fall typically means more are already established in the walls or basement. It's far cheaper and easier to close the entry points and knock the population down early than to wait until you're hearing them in the walls at night.
What's the difference between what you do and just setting traps?
Traps catch the mice already inside; they don't stop new ones from coming in. Our work centers on exclusion — finding and sealing the gaps rodents use to enter — combined with controlled baiting/trapping and follow-up monitoring. Sealing the doorway is what turns a temporary fix into a permanent one.
Is rodent bait safe around my kids and pets?
We use tamper-resistant bait stations and place materials in the runways rodents actually use, away from areas kids and pets can reach, and in many interior situations we rely on trapping instead. Tell us about pets and small children and we'll design the approach around them.
Should I clean up mouse droppings myself?
Small amounts can be cleaned carefully — never dry-sweep or vacuum them, since that can aerosolize particles; dampen with a disinfectant first and wear gloves. Deer mice in our area are associated with hantavirus, so heavy contamination in a basement, attic, or crawlspace is best handled with professional precautions.
Our guarantee
Covered by our defined-term service guarantee: if covered pests return during the service period, we re-treat at no additional charge. See Our Guarantee for terms and exclusions.
Read our guarantee terms →In the Pest Library
Rodent Control across Central New York
Based in Ithaca, NY, we provide rodent control throughout the Finger Lakes and Central New York — five counties and the towns within them:
Tompkins County
Ithaca · Lansing · Dryden · Trumansburg · Newfield · Groton · Freeville · Cayuga Heights · Danby · Enfield
Schuyler County
Watkins Glen · Montour Falls · Odessa · Burdett · Tyrone · Beaver Dams
Chemung County
Elmira · Horseheads · Big Flats
Cortland County
Cortland · Homer · McGraw
Tioga County
Owego · Waverly · Candor · Spencer
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