Fresno Bat Removal & Humane Bat Exclusion
Fresno bat removal requires more than removing the bats that can be seen. When bats establish a roost in a home, commercial building, school or other structure, the building must be inspected to determine where bats are entering, active roosts must be excluded at the proper time, and structural openings must be sealed to reduce the chance of re-entry.
United Bat Control has specialized in professional bat removal and exclusion since 1998. We provide humane bat-control services for residential, commercial and institutional properties in Fresno and throughout the United States. Our work focuses on exclusion and structural bat-proofing rather than harming bats.
If you are seeing bats emerge from a Fresno building, hearing activity in an attic or wall, finding guano or repeatedly discovering bats indoors, call 866-747-2287.
Watch Our Fresno Bat Removal Experts in Action
See how professional bat exclusion works and why correcting structural entry points is essential to keeping bats from returning.
Why Bats Get Into Fresno Homes and Buildings
Bats naturally seek protected locations for daytime roosting, raising young and seasonal shelter. Buildings can provide many of the same conditions bats otherwise find in trees, rock crevices, caves and other natural roosts.
Potential access points include gaps along roof edges, soffits, fascia, flashing, vents, chimneys, siding, tile roofs and construction joints. Larger commercial and institutional buildings can contain extensive rooflines and many potential openings that are difficult to identify from ground level.
According to the University of California Integrated Pest Management Program, bats can use openings as small as approximately one-quarter inch. That is one reason professional bat exclusion and structural bat-proofing evaluates the entire building rather than simply closing the first visible opening.
California Bats and Fresno Buildings
California is home to 26 known bat species living in environments ranging from forests and deserts to agricultural, suburban and urban areas.
Fresno and the Central Valley provide a mixture of agricultural land, neighborhoods, commercial development, trees, waterways and structures that can provide feeding and roosting opportunities for bats.
Some California species use buildings, bridges, barns, attics and other human-made structures. Others primarily roost in trees, caves or rock crevices. Species identification can be useful when evaluating seasonal activity, roosting behavior and the appropriate exclusion strategy.
Signs Bats May Be Living in Your Fresno Property
A colony can remain hidden inside an attic, wall cavity or roof system before anyone actually sees bats inside an occupied room. Signs that warrant closer inspection include:
- Bats repeatedly emerging from the same portion of the roofline around dusk.
- Bat droppings beneath an exterior opening, along a wall or inside an attic.
- Dark staining or rub marks around structural openings.
- Chirping, scratching or movement inside walls, ceilings or attic spaces.
- Persistent odors associated with accumulated guano and urine.
- Bats repeatedly appearing inside occupied portions of the building.
One bat inside a building does not automatically mean a colony is present. Repeated activity, accumulated droppings or bats consistently emerging from the same exterior opening are stronger indications of an established roost.
Professional Fresno Bat Removal Is a Structural Exclusion Project
A lasting solution involves more than capturing individual bats. When a colony is using a building, professional exclusion is designed to allow the bats to leave while preventing them from getting back inside.
A United Bat Control exclusion project may include:
- Inspection and Assessment: Examine the roofline, exterior surfaces, attic and other accessible areas for bat activity and possible entry points.
- Locate Active Openings: Determine which gaps bats are currently using to enter and exit.
- Identify Secondary Openings: Find other gaps that could become alternate entrances after the primary opening is addressed.
- Seal Inactive Openings: Close secondary gaps using materials appropriate for the building.
- Install One-Way Exclusion Devices: Allow bats to leave active roost openings without allowing them to return.
- Allow the Colony to Exit: Leave exclusion devices in place for an appropriate period under suitable conditions.
- Complete Final Bat-Proofing: Permanently close active entry points after the bats have departed.
- Evaluate Guano and Contamination: Determine whether accumulated droppings or affected materials require additional cleanup.
- Follow Up: Confirm that the exclusion is working and address conditions specific to the property.
Why the Bat Entrance Should Not Simply Be Sealed
If bats remain inside, immediately sealing an active entrance can trap them in an attic, roof system or wall cavity. Trapped bats may move farther into the structure and sometimes enter occupied rooms while searching for another exit.
The normal exclusion approach is to secure secondary openings while maintaining a controlled one-way exit at the active roost opening. After the bats have departed, the remaining opening can be permanently sealed.
Bat Exclusion Timing in California
Timing is particularly important when a maternity colony is using a building. Young bats are unable to fly for a period after birth and can be trapped inside if adult bats are excluded too early.
The University of California Integrated Pest Management Program advises avoiding colony exclusion when flightless young may be present, usually May through September in California. Excluding the adults while young remain inside can leave the young bats trapped and create additional problems inside the structure.
An inspection can still be performed during this period. Entry points can be located, the extent of the bat activity can be evaluated and an exclusion plan can be prepared for an appropriate time.
One-Way Bat Exclusion
When timing and conditions are appropriate, exclusion devices can allow bats to leave the building at night while preventing them from returning through the same opening.
Secondary openings should be secured so the colony cannot simply move to another gap in the structure. Once the bats have left, the active opening can be permanently sealed.
UC Integrated Pest Management identifies exclusion as the primary method for managing bat colonies in buildings and advises ensuring bats have left before a structure is completely sealed.
Residential Bat Removal in Fresno
Residential bat problems frequently involve attics, roof intersections, chimneys, vents, soffits, fascia, siding and wall cavities. Tile roofs and other complex roof systems can contain numerous potential openings, so correcting only the most obvious entrance may not resolve the problem.
United Bat Control provides residential bat removal and exclusion for homeowners dealing with bats in attics, walls, chimneys and occupied rooms.
The objective is to correct the structural conditions that allow bats to use the building rather than simply remove the animals that happen to be visible today.
Commercial Bat Removal in Fresno
Commercial bat exclusion can be substantially more complicated than work on a typical home. Warehouses, agricultural facilities, apartment and multi-unit properties, office buildings, manufacturing facilities, retail properties and other large structures may contain extensive rooflines and numerous possible entry points.
Large projects may also require exclusion work to be coordinated around employees, customers, tenants, equipment and normal facility operations.
United Bat Control provides commercial and industrial bat removal for properties requiring a building-wide approach to inspection, exclusion and prevention.
Bat Removal for Fresno Schools and Universities
A bat appearing in a classroom, auditorium, gymnasium, office or other occupied educational space presents concerns beyond the individual animal. Large school and campus buildings may contain interconnected attics, roof spaces, mechanical areas and wall cavities that make it difficult to determine where the bat originated.
United Bat Control provides specialized bat removal and exclusion for schools and universities, including large and complex facilities where work may need to be coordinated with administrators and facility management.
Bat Removal for Fresno Healthcare Facilities
Hospitals, medical offices, assisted-living facilities and other healthcare properties may require additional planning because patient and treatment areas must remain protected while the source of bat entry is investigated.
United Bat Control provides bat removal and exclusion for healthcare facilities, including complex structures where exclusion work may require coordination with facility management.
Bat Guano and Histoplasmosis
A long-established bat colony can leave accumulations of guano beneath a roost. The amount of material, its location and the conditions in the space determine whether specialized cleanup is appropriate.
Histoplasmosis is caused by breathing in spores from the fungus Histoplasma. The fungus can grow especially well in soil and other environmental material containing large amounts of bird or bat droppings. Disturbing contaminated material can release fungal spores into the air.
The presence of bat droppings does not automatically establish that Histoplasma is present, but large accumulations should be approached carefully rather than swept or vacuumed without evaluating the conditions.
For additional information, visit our bat health hazards page.
What to Do If a Bat Is Inside a Fresno Home or Occupied Room
Do not handle a live or dead bat with bare hands. California wildlife officials advise keeping children and pets away and allowing a healthy bat that has accidentally entered a building an opportunity to leave when there has been no direct contact with people or pets.
If a person has been bitten or scratched by a bat, or has had possible contact with bat saliva, contact the local health department or a healthcare professional promptly.
If possible rabies exposure has occurred, obtain public-health guidance before releasing or disposing of the bat because testing may be recommended.
Frequently Asked Questions About Fresno Bat Removal
What is the fastest way to get bats out of a Fresno house?
When bats are living inside a structure, the appropriate solution is usually professional exclusion. Active entry points are identified, secondary openings are secured and one-way devices allow bats to leave without getting back inside. Capturing individual bats does not correct the openings being used by the colony.
How much does bat removal cost in Fresno?
The cost depends on the building and the scope of work. Important factors include the size and height of the structure, roof design, number of entry points, accessibility, amount of sealing required, location of the roost and whether guano cleanup or repairs are necessary. An inspection is the best way to determine the actual scope.
When should bats be excluded from a building in California?
UC Integrated Pest Management recommends avoiding exclusion when flightless young may be present, usually from May through September in California. The actual timing of a project should account for the conditions and bat activity found at the property.
Why can’t I just seal the hole the bats are using?
Sealing an active entrance while bats remain inside can trap them within the building. They may then move through walls, ceilings or other spaces while searching for another exit. Active openings are normally addressed with one-way exclusion before final sealing.
How small an opening can a bat use?
UC Integrated Pest Management notes that bats can squeeze through openings as small as approximately one-quarter inch. This is why an effective exclusion requires careful inspection of the building rather than addressing only large or obvious holes.
Do bats chew holes into houses?
No. Bats do not chew through building materials to create entrances. They use openings that already exist. Preventing their return therefore depends on identifying and sealing those openings after the bats have been properly excluded.
Will ultrasonic devices remove bats from an attic?
Ultrasonic devices are not a substitute for structural exclusion. A lasting solution requires identifying the openings bats are using, allowing them to leave and then securing the building against re-entry.
Does one bat inside mean there is a colony in the attic?
Not necessarily. California wildlife officials note that a single bat inside a building may simply be lost or confused. Repeated indoor appearances, accumulated guano, sounds in walls or ceilings, or bats consistently emerging from the same portion of a building are stronger indications of an established roost.
Why can professional bat removal become expensive?
Bat exclusion is often a building-envelope project rather than a simple animal-removal job. A complex structure may have extensive rooflines, multiple entry points, difficult access and substantial sealing requirements. Cleanup, specialized access equipment and repairs can also affect the scope of work.
Can United Bat Control handle large commercial bat problems in Fresno?
Yes. United Bat Control works with residential properties as well as commercial, industrial and institutional facilities. Larger projects may require extensive inspection, multiple exclusion areas and coordination with building management or normal facility operations.
Fresno and Central Valley Service Area
United Bat Control provides professional bat removal and exclusion throughout Fresno and surrounding communities, including properties in and around:
- Downtown Fresno
- Tower District
- North Fresno
- Northeast Fresno
- Northwest Fresno
- Southeast Fresno
- West Fresno
- Old Fig Garden
- Clovis
- Fresno County communities
Why Property Owners Choose United Bat Control
- Specializing in professional bat control since 1998.
- Humane exclusion and structural bat-proofing.
- Residential, commercial and institutional capabilities.
- Experience with large and complex buildings.
- Nationwide service capability.
- Inspection-based solutions developed for the individual property.
- Warranty coverage is available on qualifying bat-exclusion projects. Specific warranty terms are provided with each proposal based on the property, building conditions and scope of work.
Contact United Bat Control for Fresno Bat Removal
If bats are living in your Fresno home, commercial property, school, healthcare facility or other building, United Bat Control can evaluate the structure and develop an appropriate exclusion plan.
Call 866-747-2287 for professional Fresno bat removal and exclusion.
You can also contact United Bat Control online.