How to Seal Your Home Against Spiders: Entry Points Most People Miss

If you're dealing with spiders in Midlothian, then you know one thing for certain. No matter how many spiders you eliminate, there are always more coming. You can vacuum up webs every weekend and still find new ones appearing. And that probably makes you wonder: how are they getting here in the first place?

In all likelihood, spiders aren’t walking through your front door. They use entry points that you don’t even know exist. And until you seal those gaps, you’ll find yourself fighting a losing battle.

Here's the thing: spiders aren't just wandering in through your front door. They're using entry points you don't even know exist. And until you seal those gaps, you're fighting a losing battle.

Most people focus on getting rid of spiders after they're inside. But if you can cut off their access points, you can solve most of your problem without spray.

Common Entry Points Most People Miss

Spiders only need a crack the width of a credit card to squeeze through. So that means there are probably at least a few entry points that you’re currently missing.

To seal these areas, use exterior-grade caulk for outside gaps, weatherstripping for doors and windows, and expanding foam for larger gaps. Mesh works for areas that need ventilation. Once you seal up these entry points, you can then check on everything annually in early spring before spider activity peaks.

With that in mind, here are a few places that are worth checking.

1. Where utilities enter your home.

Look at where cable lines, phone lines, electrical conduits, and plumbing pipes enter your house. There's almost always a gap around these penetrations that's been caulked once (maybe) and never checked again. Pull away old, cracked caulk and properly seal these gaps with fresh exterior-grade caulk. Pay special attention to where older installations have sagged or shifted over time.

2. Attic vents and crawl space vents.

These need to stay open for ventilation, but most vents have screens that are damaged, missing, or have gaps around the edges. Check every single vent on your property. Be sure to replace torn screens as you find them and also seal the frames properly to the structure. Spiders love attics and crawl spaces because they're undisturbed and full of other insects to eat.

3. Behind exterior shutters and siding.

Decorative shutters often create perfect hidden gaps between the shutter and your home's exterior. Vinyl siding develops gaps at seams and corners, especially as homes settle. These spaces are invisible from the ground but create protected pathways for spiders to travel across as they climb on walls.

4. Window AC units and their frames.

If you have window air conditioning units, check the gaps around them. Even permanent installations often have spaces where the unit meets the window frame or where foam insulation has degraded. And those accordion panels on portable units? They're basically spider doors that happen to also cool your house.

5. Garage door seals.

That rubber seal at the bottom of your garage door takes a beating from opening and closing, plus weather exposure. Most are cracked, compressed, or have gaps where the door isn't perfectly level. Replace worn seals and check the side and top seals as well—those often get completely overlooked.

6. Chimney caps and dampers.

Your chimney needs a properly fitted cap with mesh sides. No cap means spiders (and other pests) can drop straight down into your home. It’s also a good idea to check the damper itself while you’re at it. Because if it doesn't seal tight when closed, that means you have a permanent opening into your living space.

Need Midlothian spider control near you?

Even with perfect sealing, some spiders will get through. At Mosquito Squad of Central Virginia, our treatments create a barrier that stops spiders before they reach your entry points. Combined with proper sealing, this is how you can have the most effective control possible.

Need help with Midlothian spider control? Call (804) 409-2710 or contact us online for a free assessment.

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