Bat Removal & Exclusion
Professional bat removal and exclusion services that seal your property and relocate colonies safely
5 Highlights on Bat Removal & Exclusion
- Humane one-way exclusion devices — Sterling Pest Control installs one-way valves at every confirmed entry point, allowing bats to emerge naturally at dusk without the ability to re-enter your attic, soffit, or gable vent. No bats are harmed during the eviction process.
- Full structural sealing and bat-proofing — Our certified technicians seal gaps, cracks, ridge vents, fascia openings, and louvers with professional-grade mesh, caulking, and sealant. We bat-proof your entire roofline so colonies can’t relocate to a secondary entry point.
- Guano cleanup and decontamination — Bat droppings carry histoplasmosis spores and attract ectoparasites like bat bugs and mites. We remove contaminated insulation, sanitize affected surfaces, and disinfect your attic or crawl space to eliminate biohazard risks.
- Maternity season compliance — Sterling Pest Control follows all state and federal wildlife regulations. We schedule exclusion work outside the maternity season to protect flightless pups and avoid legal violations tied to protected bat species.
- Guaranteed re-entry prevention — Every bat exclusion project includes a warranty on sealed entry points. If bats re-enter through any area we treated, we return and remediate at no additional cost.
Why Choose Our Bat Removal & Exclusion
Bat removal and exclusion is a specialized service that demands wildlife knowledge, structural expertise, and strict regulatory compliance. Sterling Pest Control delivers all three.
Our licensed technicians hold certifications in wildlife control and bat exclusion methods. They don’t just trap or repel bats. They inspect your entire structure, identify every gap and crack bats use to enter, and design a custom exclusion plan that permanently solves the problem. We’ve removed colonies from attics, chimney flashing, eaves, soffits, and commercial buildings across the region.
Sterling Pest Control uses only non-lethal, humane exclusion techniques. One-way valves and exclusion netting let roosting bats leave on their own schedule. Once the colony has fully emerged, we seal every entry point with mechanical barriers — copper mesh, polyurethane sealant, galvanized screening, and architectural-grade caulking that withstands weather and aging.
We also handle what most pest control companies skip: full guano remediation. Bat droppings and urine saturate insulation and wood framing, creating contamination zones that pose real health risks. Our crew removes affected materials, applies antimicrobial treatments, and restores your attic to a safe, pest-free condition.
You get a written guarantee on every exclusion. Our reputation depends on results, and we stand behind every sealed gap, every installed device, and every square foot of decontaminated space.
Signs You Need Bat Removal & Exclusion
Bat infestations don’t announce themselves with a single dramatic event. They build gradually, and the signs are easy to miss if you don’t know what to look for.
Guano accumulation near your roofline: Bat droppings are small, dark, and pellet-shaped. They pile up beneath entry points — along eaves, below soffit gaps, on windowsills, or on the ground near your foundation. Fresh guano crumbles easily and has a shiny, speckled appearance from insect exoskeletons. If you’re finding droppings consistently in the same spot, a colony is roosting above.
Staining and grease marks around gaps: Bats produce body oils that leave dark, brownish smudge marks around the cracks and openings they squeeze through. Check your fascia boards, ridge vents, gable vents, and chimney flashing for discoloration. These rub marks confirm repeated nightly use by multiple bats.
Scratching, squeaking, or chittering sounds at dusk: A roosting colony becomes active right before sunset. You’ll hear movement inside walls, above ceilings, or in the attic as bats prepare to emerge. The sounds are distinct — lighter and higher-pitched than rodent noises, with audible fluttering.
Strong ammonia odor in your attic or upper floors: Bat urine and accumulated guano produce a sharp, pungent smell that intensifies in warm weather. This odor signals a well-established colony and significant contamination that requires professional remediation.
Bats visibly entering or exiting your structure: Stand outside at dusk and watch your roofline. If you see bats streaming out from a specific gap, crack, or vent, you’ve confirmed an active roost. Even two or three bats exiting the same spot indicates a colony that will grow each maternity season if you don’t exclude them.
Our Bat Removal & Exclusion Process
Bat exclusion is a multi-phase process. Rushing any step leads to re-infestation, trapped bats inside your walls, or regulatory violations. Sterling Pest Control follows a proven sequence that works.
Step 1: Comprehensive inspection. A certified technician inspects your entire structure — roof, attic, soffits, fascia, chimney, gable vents, ridge vents, and foundation. We identify every active entry point, assess colony size, check for guano deposits, and document structural damage. This inspection determines the full scope of work.
Step 2: Exclusion device installation. We install one-way valves and exclusion netting at all confirmed entry and exit points. These devices let bats emerge freely at dusk but prevent them from re-entering. We time this step outside the maternity season so no flightless pups get sealed inside.
Step 3: Full structural sealing. While exclusion devices handle active exits, we seal every secondary gap, crack, and opening with mesh, caulking, sealant, and screening. Bats can squeeze through openings as small as three-eighths of an inch. We miss nothing.
Step 4: Monitoring and device removal. We monitor the exclusion devices over several days to confirm the entire colony has departed. Once we verify full eviction, we remove the one-way valves and permanently seal those final entry points.
Step 5: Guano cleanup and decontamination. Our crew removes all droppings, urine-stained insulation, and contaminated materials from your attic or crawl space. We sanitize and disinfect every affected surface, then ventilate the area. You’re left with a clean, bat-proof structure.
Brands We Use
Bat removal and exclusion requires commercial-grade materials that hold up against weather, wildlife, and time. Sterling Pest Control uses trusted, professional products for every job.
- Batcone
- Batcone II
- DAP
- Xcluder
- Great Stuff
- Phifer
- New York Wire
- Fiberlock Technologies
- Bac-Azap
- Nisus DSV
- Owens Corning
Every product we apply is non-toxic to humans and pets when used as directed. Our technicians wear full protective equipment during remediation, and we follow all OSHA and EPA guidelines for biohazard handling and disposal.
Other Services
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FAQs About Bat Removal & Exclusion
What is bat exclusion, and how does it differ from extermination?
Bat exclusion is a humane, non-lethal process that removes bats from your structure by installing one-way devices at entry points. Bats leave on their own and can’t return. Extermination — killing bats — is illegal for most species in the United States. Exclusion is the only legal and effective long-term solution.
When is the best time to schedule bat removal?
Late summer through early fall is the ideal window. The maternity season — typically May through August — restricts exclusion work because flightless pups inside your attic would be sealed in and die. Sterling Pest Control schedules all exclusion projects to comply with state wildlife regulations and seasonal restrictions.
How do bats get into my house?
Bats enter through gaps as narrow as three-eighths of an inch. Common entry points include ridge vents, soffit gaps, loose fascia boards, chimney flashing, gable vent louvers, and cracks where different building materials meet. A single unsealed opening is enough for an entire colony to establish a roost.
Can bat guano make you sick?
Yes. Accumulated bat droppings harbor the fungus Histoplasma capsulatum, which causes histoplasmosis — a respiratory infection that can become serious in people with compromised immune systems. Guano also attracts bat bugs, mites, and other ectoparasites. Professional decontamination eliminates these hazards.
Does Sterling Pest Control guarantee bat exclusion results?
Every bat exclusion project comes with a written warranty. If bats re-enter through any sealed area, we return and resolve the issue at no charge. Our guarantee covers all entry points we treated, and we stand behind the materials and workmanship on every job.
How long does the entire bat removal process take?
Most residential bat exclusion projects take one to two weeks from initial inspection to final sealing. The timeline depends on colony size, the number of entry points, and the extent of guano contamination requiring remediation. We provide a detailed schedule before work begins.