Boxelder Bug & Fall Invader Control in Wausau, WI
Red and black bugs all over the sunny side of the house? Ladybugs in the windows every October? Stop them before they move into your walls.
Boxelder bug control in Wausau works best before the bugs get inside. Call [PHONE] and a licensed, insured local technician will find where boxelder bugs, Asian lady beetles, cluster flies and stink bugs get in, treat the outside at the right time and tell you what to seal.
- Boxelder bugs & lady beetles
- Cluster flies & stink bugs
- Outside treatment, timed right
- Price before work starts
Fall Invader Services in Wausau
One call covers boxelder bugs pest control and the other fall invaders, from the first bugs on the siding to the gaps that let them into your walls.
Boxelder Bug Treatment
Thin bands of a product made for the job around windows, doors, eaves and other entry points, applied when the bugs start gathering.
Asian Lady Beetle Control
Treatment around doors, windows and overhangs on the south, west and east sides, timed for late September or early October.
Cluster Flies
Help finding where cluster flies get into attics and upper walls, and what to seal before next fall.
Stink Bugs
Brown marmorated stink bugs move into buildings in fall. The same gaps and the same timing apply.
Entry Point Check
Sunny south and west walls, siding edges, window and door frames, vents and pipe holes, with a list of what to seal.
Rentals, Offices and Businesses
Buildings with lots of windows and sunny walls, as a one-time fall visit or part of a seasonal plan.
Not sure which bug it is? Describe it on the phone.
Book Fall Prevention Before September
Boxelder bugs gather on sunny walls in September and October, then crawl inside once nights cool into the 30s, according to UW–Madison Extension. Sealing cracks before they arrive, and treating walls as soon as the first bugs gather, works far better than chasing them indoors. Late summer is the time to book.
Boxelder Bugs Pest Control in Wausau: What Happens When You Call
Good boxelder bugs pest control is mostly about timing and gaps. Here is how a typical visit goes.
Identify the invader
Boxelder bugs, Asian lady beetles, cluster flies and stink bugs all come in for the winter, but they gather in different spots. Knowing which one you have tells the pro where to look.
Find the way in
The pro checks the sunny south and west walls first, then siding edges, window and door frames, attic and soffit vents, and the holes where pipes and wires enter.
Your price and plan
You hear which walls will be treated, when, and the total price before any work starts.
Treat the outside
Treatment goes in thin bands around windows, doors, eaves and other entry points. It usually lasts several weeks and both kills and repels the bugs that land there.
Flag what to seal
You get a list of gaps to caulk, screen or weather-strip, plus advice on vacuuming any bugs already inside.
What You Can Expect When You Call
Licensed, insured pros
Every technician we send is licensed by the State of Wisconsin and fully insured.
Timed for fall
Outside treatment is planned for when the bugs start gathering, so it lands on the walls where they are.
Gaps flagged, not just sprayed
You get a list of cracks, vents and pipe holes to seal. Sealing is what makes next fall easier.
Price before work
You agree to the price and the plan first. Nothing starts until you say yes.
Help with bugs already inside
Sprays can’t reach bugs in the walls. We also show you how to vacuum them up and find where they come out.
Homes, cabins and businesses
From one sunny wall on a house to rentals, offices and buildings with lots of windows.
Fall Invaders in Wausau Homes: The Basics
Boxelder bugs, Asian lady beetles, cluster flies and stink bugs all look for a warm place to spend a Wisconsin winter, and a house wall is perfect. UW–Madison Extension says boxelder bugs gather on sunny south and west walls in September and October, then crawl into cracks once nights cool into the 30s. A crack of about 1/16 inch is enough to get in.
Once inside, they rest in wall voids and attics until spring. They don’t breed indoors, but warm, sunny winter days can bring some out near windows. UW entomologists call boxelder bugs harmless to people, pets and homes. Crushed bugs and their droppings can stain fabric and light walls, so vacuum them instead of swatting.

Will an Exterminator Get Rid of Boxelder Bugs?
An exterminator can cut the numbers a lot, but only on the outside. Bugs already inside the walls are out of reach, so timing matters. Call a pro when any of these sound familiar:
- Hundreds of bugs on the siding every fall
- Bugs inside every winter, year after year
- Lady beetles or flies in an upper floor or attic
- Second-story gaps you can’t reach safely
- A rental, office or business with lots of windows
- You sealed what you could and they still get in
What You Can Do Yourself
- Vacuum bugs that wander out and empty the vacuum right away.
- Caulk cracks around windows, doors and siding in August.
- Repair torn window screens before September.
- Replace worn door sweeps and weather stripping.
What Not to Do
- Don’t crush them on curtains or walls. They stain.
- Don’t seal a gap while bugs are still coming out of it inside. Wait until spring.
- Don’t expect indoor sprays to reach bugs in the walls.
Same call for homes, cabins and businesses.
What Affects the Price of Fall Invader Treatment
Prices for boxelder bugs pest control aren’t listed here because every house is different. We quote after a look at the building, based on:
- The size of the house and how many walls need treatment
- How high the gaps are, like second-story eaves and vents
- Which bugs you have, and how many
- Whether sealing work is included or just listed for you
- A one-time fall visit or part of a seasonal plan
Ask Before You Book
- Which walls will you treat, and when?
- How long does the treatment last?
- Do you seal gaps, or just list them?
- Can a fall visit be part of a yearly plan?
- What should I do about bugs already inside?
Fall Invader Help Around Wausau
We serve these towns, for homes, cabins and businesses.
Fall Invader Questions
What Wausau homeowners ask about boxelder bugs and other fall invaders.
Are boxelder bugs common in Wisconsin?
Yes, and some years are much worse than others. Numbers climb after dry, warm years and drop after wet ones, because rain helps a fungus that kills them.
How long do boxelder bugs live in a house?
They stay through the winter, resting in walls and attics, and head back outside in spring. They don’t breed or lay eggs inside.
What kills boxelder bugs instantly?
Soapy water, about 3 to 4 percent soap, kills the bugs it hits, but it stops working as soon as it dries. It only helps with the bugs you can see.
Are Asian lady beetles harmful?
Not really. They don’t damage the house, but the fluid they release can stain, and a small number of people develop allergies after repeated contact.
Why do I suddenly have flies in my house in winter?
They are probably cluster flies. They crawled into the walls in fall and wake up on warm, sunny days. Sealing gaps next fall is the fix.
Do stink bugs come inside in Wisconsin?
Yes. Brown marmorated stink bugs have been found in more than 50 Wisconsin counties, and adults move into buildings in fall. Indoor numbers are usually small.
Should I cut down my boxelder tree?
Removing seed-bearing boxelder trees near the house cuts the number of bugs that breed there, but bugs can fly in from nearby trees. Sealing the house matters more.
How much does fall invader treatment cost?
It depends on the size of the house, how many sides need treatment and whether it’s part of a seasonal plan. You get the price before any work starts.
Is the outside treatment done by licensed pros?
Yes. Every technician we send is licensed by the State of Wisconsin and fully insured.
Get Ahead of Them This Fall
Book boxelder bug control in Wausau before the bugs move in. A licensed local pro will find the gaps, treat the outside at the right time and agree the price with you first.
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