Your Guide to Mosquito Squad’s New Berlin, WI Spider Control Solutions
Posted by Mosquito Squad
June 16, 2025

There are very few among us who enjoy the idea of sharing their space with spiders. Even though most species in the New Berlin area are harmless, that doesn't make them welcome guests in most homes. If you’ve been spotting webs in corners or noticing more eight-legged visitors than usual, it’s time to call Mosquito Squad and ask us about our reliable New Berlin, WI,spider control solutions.
Why Are There Spiders in My House?
The appearance of spiders inside your house is often a result of seasonal changes. In late summer and early fall, spider activity tends to spike. This is when the mating season kicks in. At the same time, dropping temperatures send spiders looking for warmth, and in many cases, that means residential homes.
Spiders can find their way inside through surprisingly small openings: cracks in your foundation, unsealed windows, tears in screens, under doors, or even through attic vents and utility gaps. Once inside, they tend to gravitate toward dark, quiet spaces such as closets, basements, attics, or behind furniture. If you have other pests, that will make your home even more appealing. To spiders, your pest problem means a free buffet!
Are All Spiders in New Berlin Harmful?
The vast majority of spiders you’ll find around here are harmless and may even help by eating other pests. Still, that doesn’t mean you want them hanging around. Here are a few common varieties that will not harm humans:
- Common House Spider – Small and gray or brown. Found in corners, sheds, and basements.
- Barn Spider – Bulky with brown or orange coloring. Often found outdoors in sheds and on porches.
- Grass Spider – Brown with stripes and long legs. Builds sheet-like webs close to the ground.
- Wolf Spider – Large, furry, and fast. Hunts on foot. Can look scary, but is not dangerous. Their bites are itchy but ultimately not a danger.
- Jumping Spider – Compact with short legs and big eyes. Active during the day.
- Cellar Spider (Daddy Longlegs) – Very thin legs and tiny bodies. Hangs out in garages and basements.
Venomous Spiders to Watch For
However, while the majority of spiders in the area won’t hurt you, there are two species that you should be on the lookout for. Should you suspect a bite from either of these spiders, clean the area, apply a cold compress, and elevate the limb while waiting for medical help.
Black Widow
Glossy and black with a red hourglass shape on the abdomen. Prefers hidden spaces like crawlspaces and basements. Bites can lead to nausea, tremors, and muscle cramps. Seek medical help if bitten.
Brown Recluse
Light brown with a violin-shaped marking on the back. Hides in dark, undisturbed spots like closets, boxes, or woodpiles. Bites can result in skin damage and flu-like symptoms. Medical attention is advised.
How Does Mosquito Squad Do Spider Control in New Berlin, WI?
Ourspider control service starts with a complete property inspection. We’ll look out for common spider habitats, including attics, crawlspaces, sheds, garages, woodpiles, and patio furniture.
To the areas with high activity, we’ll then apply our barrier treatment spray, as well as around the perimeter of your home. Entry points like windows, vents, doorways, and foundation cracks receive special attention.
Once applied, the treatment will deter spiders and other pests for up to 21 days. We’ll also take other steps to discourage spiders from returning, like clearing away webs and egg sacs.
Turn to Mosquito Squad for New Berlin, WI Spider Control!
Give us a try now and call us at (262) 333-0395 orcontact us online!