Bat Removal & Exclusion
Professional bat removal and exclusion services that help seal your property and safely relocate live colonies
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 fly out and emerge naturally at dusk without the ability to re-enter your attic, soffit, or gable vent. No bats are harmed during the eviction process, and flying animals are free to find a new habitat.
- 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 move to a secondary entry point or find new access.
- Guano cleanup and decontamination — Bat droppings and feces 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, using only licensed and insured removal specialists. 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 return and re-enter through any area we treated, we come back 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. When dealing with a bat problem, you need a bat expert who understands these mammals and can remove bats from your site without causing harm. 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, chimneys, 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, using their wings to fly back to natural habitats like caves and trees. 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 and can lead to related pests moving in. 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. Whether you’re dealing with a small species with a wingspan of just a few inches or a larger colony, we deliver.
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. If you’re wondering whether you have bats living in your structure, start by searching for these indicators.
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, a sign of the bat’s insect-based diet. If you find droppings that accumulate consistently in the same spot, a colony is roosting above.
Staining and grease marks around gaps: Bats produce body oils that leave dark, brown or reddish-brown smudge marks around the cracks and openings they squeeze through. Check your fascia boards, ridge vents, gable vents, and chimney flashing for discoloration. You may also find these rub marks on parts of the roofline where bats are found entering. These stains 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 of wings. Some species also use echolocation clicks that may be faintly audible.
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 wildlife removal and 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. Contact a professional bat expert to get the job done right.
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. If you hire Sterling Pest Control, you get 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 and gives us a range of information to move forward.
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, keeping your property protected. 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, using professional-grade materials on all parts of the structure.
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 so bats cannot return to your roost.
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. Once the work is done, 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 to the roost – they’ll find a new home in a tree or other natural shelter where they can hunt for food. Extermination – killing bats – is illegal for most species in the United States. These valuable animals provide pest control by eating insects, so 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. Winter is not recommended because bats may be hibernating. 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. Additionally, a sick bat may carry rabies, which is another cause for concern. 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. We offer this protection because we’re confident in our work.
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 so you know what to expect and can give us access when needed. Visit our contact page to get started.