Kicking Off Bat Exclusion with Dormer Sealing and Debris Cleanup

Estimated read time: 5 minutes
House with multiple dormers where bat activity and sealing occurred

Dormers may add character to your home—but they’re also bat magnets.

In a recent job in Wilmar, MN, Luke Buggert and the team at Complete Ground Control found bats entering through tiny gaps where dormers, soffits, fascia, and shingles meet.

While homeowners often focus on attics or vents, dormers create dozens of hidden access points, especially when they’ve been left uninspected for years.

That’s why this time of year marks the official kickoff of bat exclusion season a time to remove bats humanely, seal their entry points, and prevent property damage before it spirals out of control.

Technician on lift sealing high dormer edge of brick home exterior
Technician on lift sealing high dormer edge of brick home exterior

Why Bat Exclusion Matters and Why It Must Be Humane

First, let’s clear something up: bats are protected species in Minnesota.

That means any pest control dealing with them must follow strict legal and humane standards.

You can’t poison or trap them.

Instead, the process relies on a method called “exclusion.”

Here’s how it works:

  • One-way traps let bats exit—but not return
  • No bats are harmed
  • After all bats leave, the home is sealed
  • A warranty backs the work to ensure they don’t return

This method protects both your home and the environment.

Component Risk Description Inspection Notes
Dormers Create tight, hidden openings Check where materials meet
Soffits Often uneven or sagging Look for gaps and exposed nails
Valleys Collect debris and organic matter Clean to prevent moisture and pests

During this Wilmar project, the valleys were also packed with years of debris.

While bats were the main concern, the team went further—cleaning, inspecting, and advising the homeowner to prevent rot and water damage.

The Complete Ground Control Bat Exclusion Process

What sets this company apart?

They approach bat removal with the precision of home inspectors and the care of wildlife specialists.

Here’s their proven process:

  1. Full Exterior Inspection – Focused especially on dormers and soffit lines
  2. Install One-Way Traps – So bats can leave but can’t return
  3. Thorough Sealing After Exit – Close every gap
  4. Structural Review & Debris Cleanup – Prevent future pest attraction
  5. Warranty Included – Because peace of mind matters
Step Purpose Best Practice
One-Way Trap Installed Allows bats to exit safely Never block bats inside
Dormer Inspection Find hidden entry points Use light, mirrors, or drone footage
Seal Entry Points Prevent future infestations Use bat-safe caulking & flashing tape

Why Dormers Are Overlooked and Why They Shouldn’t Be

Most homeowners don’t regularly check dormer angles or valleys.

That’s what makes them so appealing to bats—quiet, dark, elevated areas that rarely see human interference.

They can slip into:

  1. Gaps as small as ½ inch
  2. Loose siding or flashing
  3. Corners where shingles meet fascia

What starts as one bat can quickly become a colony, creating:

  • Guano buildup (which is toxic)
  • Insulation contamination
  • Health risks for your family

It’s critical to act fast especially in spring before mating season begins.

We Don’t Just Remove Bats We Protect Your Whole Home

During this job, Luke’s team didn’t stop at sealing.

They:

  • Cleared sticks and dirt packed into valleys
  • Pointed out early signs of soffit rot
  • Showed the homeowner how to prevent water buildup
  • Offered tips on discouraging future nesting behavior

It’s what makes this team different—they don’t just remove wildlife.

They strengthen homes.

Service Type Homeowner Benefit Included in Service?
Humane Bat Removal Complies with laws & protects bats Yes
Valley Debris Cleanup Prevents rot & pest attraction Yes
Structural Health Review Helps catch issues early Yes

Signs You May Have a Bat Problem

Not sure if your home is already affected?

Here are 5 signs you need bat-proofing:

  1. Droppings near attic vents, dormers, or siding
  2. Scratching or chirping noises at dusk
  3. Stains or streaks on exterior walls near the roofline
  4. Strong ammonia odor inside or near upper rooms
  5. Visual confirmation of bats flying near the home at night

If even one of these sounds familiar—it’s time to schedule an inspection.

Don’t Wait for Damage Be Proactive

Letting bats remain in your home isn’t just annoying—it’s dangerous.

Here’s why:

  • Bat colonies spread fast—especially in warm attic spaces
  • Entry points invite other pests, like hornets and squirrels
  • Valley debris can lead to roof leaks and mold

By removing bats and sealing up the access points, you’re not just solving a wildlife problem you’re protecting your long-term property value.

Why We Think This Is Important

At Complete Ground Control, bat-proofing is about more than exclusion.

It’s about:

  • Honoring wildlife laws
  • Protecting homeowner safety
  • Educating clients on building health
  • Delivering solutions that last

That’s why every job includes thorough inspections, bonus cleanup, and a warranty.

We understand that dealing with bats can be stressful, embarrassing even scary.

But with the right help, it doesn’t have to be.

We’re here to make your home bat-free, safe, and strong for seasons to come.

Boom lift positioned to reach upper dormers on large white barn home
Boom lift positioned to reach upper dormers on large white barn home

FAQs

Are bats dangerous to humans?

While bats don’t attack, they can carry disease. Their droppings (guano) are toxic and can cause respiratory problems if left unchecked.

When is the best time for bat exclusion?

Early spring and late summer are ideal. Exclusion is illegal during maternity season (usually mid-summer) to avoid trapping young bats inside.

How long does the bat exclusion process take?

Most homes can be excluded in 1–2 days, plus a follow-up for sealing and warranty work.

Will the bats come back?

No—if the exclusion is done right. One-way traps and sealing prevent future reentry.

Is your bat removal service humane?

Yes! We use only legal, humane methods that follow all state and federal wildlife protection laws.

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