What Happens During a Rodent Control Visit? Our Step-by-Step Process

Heard scratching in the walls? Found mouse droppings under the kitchen sink? If you're thinking about calling an exterminator, you probably want to know what happens next and whether professional treatment will actually solve the problem.

What does an exterminator do for mice? The process starts with finding where mice are entering your home, where they're nesting, and how they're moving through the building. From there, the technician recommends ways to seal entry points, remove the mice already inside, and check that the activity has stopped.

Most homes need an initial inspection and at least one follow-up visit. The number of appointments depends on the size of the infestation and the condition of the property.

Here's how Anchor Pest Services approaches rodent control in New Hampshire, from the first phone call to the final follow-up.

Before the Visit: What We Ask When You Call

When you contact Anchor Pest Services, we'll ask a few questions about what you've noticed around your home.

You don't need to know where the mice are getting in. That's what the inspection is for. But knowing where you've seen activity helps the technician decide where to start.

We'll typically ask:

• Where have you noticed signs of mice? Droppings in the pantry, scratching in the attic, chewed food packaging, or a mouse running across the kitchen floor all provide useful clues.
• How long has it been happening? A problem that started yesterday may need a different approach than one that's been going on for months.
• What type of home do you have? Older foundations, attached garages, and unfinished basements can create additional entry points.
• Do you have pets or young children? This helps us plan trap placement and choose appropriate treatment methods.

If you've found droppings or noticed damage, make a note of where you saw it. You can also take a few photos to show the technician.

Inspecting Your Home

The first visit begins with an inspection to find out how mice are getting inside and where they're spending their time.

Mice are good at staying hidden. You may hear scratching in the ceiling or find droppings behind the stove without ever seeing a mouse.

A technician looks for evidence of activity throughout the areas of the home that may be affected.

What We Check Inside

Depending on the layout of your house, the inspection may include:

• Kitchen: Under sinks, behind appliances, inside accessible cabinets, and around plumbing openings
• Basement: Foundation walls, sill plates, utility lines, and storage areas
• Attic: Accessible insulation, framing, and potential nesting areas
• Garage: Door seals, corners, and openings leading into the house
• Other rooms: Anywhere you've noticed droppings, chewing, scratching, or unusual odors

We're looking for droppings, gnaw marks, nesting material, greasy rub marks, and the routes mice use to move around the building.

If you're unsure whether you've found evidence of rodents, our guide to the signs of a mouse infestation explains what to watch for.

What We Check Outside

The exterior inspection is just as important.

Mice can squeeze through openings roughly the width of a pencil, so even a small gap around a pipe or foundation joint can be enough to let them inside.

Common entry points include:

• Gaps along the foundation
• Openings around utility lines and pipes
• Damaged dryer vent covers
• Worn garage door seals
• Gaps around siding and exterior trim
• Openings near the roofline

The goal is to identify the places rodents are using to enter the house, not just the rooms where you've noticed them.

[Photo: Anchor technician using a flashlight to inspect a gap along a home's foundation.]

Explaining the Plan and Price

Once the inspection is complete, the technician explains what was found and recommends a plan for your home.

That may include sealing entry points, setting traps, addressing conditions that attract mice, and scheduling follow-up visits.

You'll know what work is recommended and what it will cost before agreeing to treatment.

Every home is different. A newer house with one accessible entry point won't necessarily need the same work as an older New Hampshire property with a stone foundation and mouse activity in several rooms.

That's why we inspect first instead of recommending the same treatment for every house.

You can learn more about our guaranteed pest control process and what to expect when working with Anchor.

Sealing the Gaps Mice Use to Get Inside

Catching the mice already in your home won't solve the problem if new ones can keep coming through the same openings.

That's where exclusion comes in.

Exclusion means closing the gaps and openings that allow rodents to enter the building.

Depending on the location, a technician may recommend materials such as copper mesh, hardware cloth, sealant, or door sweeps.

The right repair depends on the opening. A gap around a utility pipe needs a different solution than a damaged garage door seal.

Expanding foam alone usually isn't enough. Mice can chew through it, so vulnerable openings need materials that can stand up to rodent activity.

Some gaps may require repairs by another contractor, particularly if there's damaged siding, roofing, or structural wood.

Sealing entry points is one of the most important parts of keeping mice from coming back. Without it, trapping may solve the immediate problem while leaving the house open to another infestation.

[Photo: Before-and-after comparison of a pipe penetration sealed with rodent-resistant materials.]

Removing the Mice Already Inside

Once the entry points have been identified, the next step is removing the mice that are already living in the house.

For many infestations, that involves strategically placed traps.

Where Do Exterminators Put Mouse Traps?

Mice usually travel along walls, behind appliances, and through sheltered areas rather than running across open rooms.

Technicians look for those travel routes and place traps where rodents are most likely to encounter them.

Common locations include basement walls, areas behind appliances, accessible attic spaces, and places where droppings or other signs have been found.

Snap traps are commonly used because they allow technicians to monitor catches and see whether activity is decreasing.

Do Exterminators Use Poison for Mice?

Bait stations may be appropriate in some situations, particularly in suitable exterior locations.

They aren't the right choice for every property.

The technician considers the location of the infestation, the home's layout, and whether children or pets could access the treatment area.

If you have a dog, cat, or young children, let us know before treatment. That information matters when deciding where and how to place traps or bait stations.

For more information, read our FAQ about rat poison around children and pets.

What Does an Exterminator Do for Rats?

The general process is similar for rats and mice: identify the problem, find entry points, remove the rodents, and monitor the results.

However, rats are larger and behave differently, so the equipment and placement methods may change.

Our guide explains how professionals remove rats and what makes rat control different from treating mice.

Follow-Up Visits

A rodent problem usually isn't resolved in a single appointment.

Even after traps have been placed and entry points addressed, it's important to check whether mice are still active.

During a follow-up visit, the technician may:

• Check traps and review catches
• Look for fresh droppings
• Inspect areas where mice were previously active
• Check for missed or newly discovered entry points
• Adjust trap placement if necessary

How Long Does It Take for Mouse Activity to Stop?

It depends on the infestation.

A small problem with a few mice may improve quickly. A larger infestation involving several nesting areas or difficult-to-reach spaces can take longer.

You might notice less scratching or fewer droppings before the treatment is complete.

That's encouraging, but it doesn't necessarily mean every mouse is gone.

Our guide to how long it takes to get rid of mice explains what affects the timeline.

How Do We Know the Job Is Done?

The goal is to see no further signs of rodent activity.

That means no new droppings, no additional trap catches, and no other evidence that mice are still moving through the home during follow-up checks.

The technician will review the results and let you know whether further monitoring or preventive work is recommended.

What You Should Do Between Visits

There are a few simple things you can do to help the treatment work.

Keep food sealed. Store pantry items, pet food, and birdseed in containers mice can't easily chew through.

Clean up crumbs and spills. Pay particular attention to kitchen counters, floors, and areas behind appliances.

Leave traps where they are. The technician has placed them based on signs of rodent activity. Moving them can interfere with monitoring.

Report anything new. If you hear scratching in a different room or notice fresh droppings, tell your technician.

Handle droppings carefully. Don't sweep or vacuum dry mouse droppings. Disturbing them can release contaminated particles into the air.

If you're dealing with old nesting material or droppings, follow our instructions on how to clean up after mice safely.

Will the Mice Come Back?

They can, particularly if entry points remain open.

That's why a good rodent control plan includes more than trapping.

Once the existing mice have been removed, sealing the gaps they used makes it much harder for new rodents to get inside.

Still, no house is permanently mouse-proof.

Buildings settle, weatherstripping wears out, and new openings can appear around pipes, siding, or other parts of the structure.

In New Hampshire, this is especially relevant in fall and winter, when mice look for warm places to shelter.

If you want to understand what long-term results look like, read our guide on whether exterminators get rid of mice permanently.

If you notice renewed activity after treatment, contact Anchor Pest Services. We'll review what's happening and explain the next steps under any applicable service guarantee.

For homes that have repeated mouse problems every fall or winter, ongoing monitoring may also be worth considering.

What We Don't Handle

Anchor Pest Services treats mice and rats.

If the problem involves squirrels, bats, raccoons, or other wildlife, you'll need a licensed wildlife control operator rather than a standard rodent control service.

FAQs

Is It Worth Getting an Exterminator for Mice?

Yes, particularly if you're finding droppings regularly, hearing scratching in the walls, or catching mice without seeing the problem improve. A professional can identify entry points and nesting areas that aren't obvious to homeowners. That helps address the cause of the infestation instead of simply catching individual mice.

Do Mice Come Back After Extermination?

They can if entry points are left open or new gaps develop over time. Sealing openings around the foundation, utility lines, and other vulnerable areas reduces the chance of another infestation. It's also important to monitor for new activity, especially during colder months.

Do Exterminators Get Rid of Mice Completely?

Professional rodent control aims to remove the mice already inside and prevent new ones from entering. Follow-up checks help confirm that activity has stopped. However, no treatment can guarantee that mice will never find another way into a home.

What Is the 5-Day Mouse Rule?

The five-day mouse rule is an informal claim that mice should be gone within five days of treatment. It isn't a recognized standard for professional rodent control. Some problems resolve quickly, while others require more time and additional visits.

How Many Visits Does It Take to Get Rid of Mice?

Most homes need an initial inspection and one or more follow-up visits. The number depends on the infestation, the home's layout, and how much exclusion work is required. Your technician can give you a better idea of the expected schedule after the inspection.

Is Rodent Treatment Safe for My Dog or Cat?

Treatment can be planned with pets in mind, but traps and rodenticides can be hazardous if animals can reach them. Tell the technician about your pets before work begins so appropriate methods and placement locations can be selected. Follow any instructions about keeping animals away from treatment areas.

Do I Need to Leave the House During a Rodent Visit?

Usually not. Homeowners can generally remain in the house during inspections and many types of rodent control work. If a particular area needs to be kept clear or temporarily restricted, the technician will explain that before treatment.

Anchor Pest Services' rodent control starts with a thorough inspection and a plan based on your home, not a one-size-fits-all treatment.

Want to hear from other homeowners first? Take a look at our customer reviews.

Call (603) 785-0118 or book a rodent inspection.

We'll help you understand what's happening and what it will take to get the problem under control.