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Bat exclusion in Ashburn, VA. Humane removal, sealed for good.

Bats in the attic leave droppings, noise and odors, and can carry rabies. We never harm them. Our licensed Loudoun County technicians guide bats out with one-way devices, seal every gap and clean up safely.

Call (571) 704-8010 Get a free quote

Humane exclusion only
Serving Ashburn and nearby towns
Free quotes, no obligation

Bats leave through one-way exits, then we seal the gaps.

Licensed and insuredVirginia certified applicators
Humane methodsNo poison, no harm to bats
Whole-roof inspectionRidge to foundation
Written quotesPrice confirmed before work
Locally operatedAshburn and Loudoun County

What is bat exclusion and why does it matter?

Bat exclusion is the humane way to remove bats from a building. We find the exits, fit one-way devices that let bats leave at night but not return, and then permanently seal every opening. Bats are protected in some cases, and sealing them inside would be both harmful and ineffective, so careful timing is essential.

Bats can squeeze through gaps about 3/8 of an inch wide, so a roof can have many entry points. A colony in your attic can leave droppings, stains and odors, and bats can carry rabies, so it is not a do-it-yourself job. Bats also eat large numbers of insects, including mosquitoes, so we aim to move them out of your home, not out of your neighborhood.

Bats we see in Ashburn and Loudoun County

Illustrations show typical coloring. We identify the species and check for young before any work.

Big brown bats

The bat we find in attics most often. They roost in groups, often under ridge vents and in wall gaps.

Attics, soffits, wall voids
Active at dusk, leaving to feed

Little brown bats

Once very common, their numbers have dropped sharply. They still use attics and buildings for summer roosts.

Attics and quiet buildings
Protected habitat matters

Eastern red bats

Mostly roost in trees, and are sometimes found hanging on porches or siding, rather than in attics.

Trees and sheltered porches
Usually not a roof colony

Signs of bats in your home

Scratching or squeaking in the attic or walls, especially at dusk and dawn
Dark, crumbly droppings under roof gaps, on siding and in the attic
Grease-colored stains around small gaps at the roofline
Bats leaving or returning near your roof at dusk and dawn
A musty or ammonia-like odor in the attic
Single bats appearing in living spaces, which often means a colony nearby

How we do bat exclusion

We recommend a plan after the inspection, based on the species, the number of entry points and the time of year.

One-way exit devices

Placed over the main exits so bats can fly out at night but cannot get back in. No bats are trapped, harmed or poisoned.

Permanent sealing

Once the bats are out, we seal every gap with metal, flashing and durable materials built to last.

Bat houses

We can install a bat house nearby so displaced bats have a place to roost, and your yard keeps its natural mosquito control.

Guano cleanup

Safe removal of droppings and soiled insulation with protective gear, followed by sanitizing where needed.

Also see our wildlife control, raccoon removal and attic cleanup pages.

Our bat exclusion process

We time the work so no young bats are trapped, and explain the plan in writing first.

Book a bat inspection

Inspect
We check the roofline, vents, siding, chimney and attic to find every entry point and see where the bats exit at dusk.
Exclude
We install one-way exit devices at the main exits and let the bats leave on their own.
Seal
When the bats are out, we remove the devices and permanently seal all openings.
Clean and prevent
We recommend guano cleanup and insulation replacement, and install a bat house if you like.

Safety first: if a bat is in your living space

General safety guidance, not medical advice.

Never touch a bat

Do not handle a bat with bare hands. Close the doors to the room, keep people and pets out and call for help.

If there is possible contact

If a bat was in a room with a sleeping person, a child or a pet, or if someone is bitten or scratched, contact a doctor or the Loudoun County Health Department. Do not release the bat, so it can be tested if needed.

Do not disturb droppings

Do not sweep or vacuum guano in the attic. Large accumulations can cause a lung infection, so leave cleanup to professionals.

Bat exclusion near you: local insights for Ashburn

We work across Loudoun County every day, so we know where bats turn up in our neighborhoods.

Creeks, ponds and insects

Water means insects, and insects mean bats. Homes near Broad Run, Beaverdam Creek, neighborhood ponds and the W&OD Trail often have bats feeding overhead at dusk.

Newer homes with small gaps

In Brambleton, Broadlands, Belmont and South Riding, small gaps at ridge vents, soffits, fascia and gable vents are the usual entry points for bats.

Older homes and barns

West Loudoun towns such as Aldie, Leesburg and Purcellville have older houses, barns and outbuildings that offer lots of roost sites.

Townhomes and condos

In Ashburn Village, Ashburn Farm and Lansdowne, shared attic spaces and rooflines mean bats can move between units. We coordinate with neighbors and HOAs.

Wooded lots and mature trees

Tree-lined streets and wooded buffers give bats cover and nearby roosts, which makes nearby roofs easy to reach.

Churches, offices and commercial buildings

Steeples, flat roofs and mechanical rooms at larger buildings, including those near One Loudoun and along the Dulles Greenway corridor, can host colonies. We schedule work around your hours.

Bat exclusion service areas near Ashburn

We are based in Ashburn and serve homes and businesses across Loudoun County and nearby communities. Not sure if we cover you? Call (571) 704-8010 and ask.

A simple diagram of the communities we serve, not to scale.

Ashburn

Our home base. Fast response to Ashburn Village, Ashburn Farm, Belmont and One Loudoun.

Sterling

Neighborhoods near Dulles and Algonkian, with wooded parks and older homes.

Leesburg

Historic downtown, neighborhoods and larger lots with mature trees.

Lansdowne

Golf course and wooded-buffer communities close to Ashburn.

Brambleton

Newer homes near Brambleton Town Center and park trails.

Broadlands

Wooded and pond-side neighborhoods just southwest of Ashburn.

South Riding

Planned communities with trails, ponds and green space.

Aldie

Larger properties and rural edges on the west side of the county.

Chantilly

Homes and businesses in the Chantilly area near Fairfax County.

Herndon

Established neighborhoods east of Ashburn and near Dulles.

Purcellville

Western Loudoun homes, farms and wooded lots.

Common ZIP codes we serve include 20147, 20148, 20152, 20105, 20164, 20165, 20166, 20175, 20176, 20132, 20151, 20170 and 20171. See all service areas.

Bat season in Northern Virginia

Spring

Bats return from winter and females look for warm roosts. Inspect and plan.

Summer

Pups are born and cannot fly. Exclusion is avoided so young are not trapped.

Late summer and fall

Young can fly, which makes this the usual window for exclusion and sealing.

Winter

Some bats can hibernate in buildings. We check carefully before any winter work.

How to keep bats out of your home

Simple steps that make exclusion last.

Have the roofline, vents and chimney inspected once a year
Seal gaps at the ridge, fascia, soffit and siding with metal or durable material
Install screens on vents and chimney caps
Never seal a gap while bats may be inside
Do not try to trap or handle bats yourself
Consider a bat house to give bats a place to live nearby

Dealing with other pests too? See our full list of pest control services, or the home prevention checklist.

Why Ashburn homeowners choose us for bat exclusion

Humane and careful
We never poison or harm bats and we time the work to protect young.
We fix the cause
We seal every entry point, not just the one you can see.
Clear, written quotes
You know the price and the plan before work begins.

Bats in your attic or home?

Call us. We can advise on safe next steps and timing for exclusion.

(571) 704-8010

Monday to Saturday, 7 am to 7 pm

Bat exclusion FAQs for Ashburn

How do I know if I have bats in my attic?

Common signs are scratching or squeaking in the attic or walls at dusk and dawn, dark pellet-like droppings called guano under entry points and in the attic, grease stains around small gaps, and bats seen leaving your roof at dusk.

Is it legal to kill or trap bats?

Bats are valuable insect eaters, and some species are protected by state and federal law. We use humane exclusion methods only, never poison or harm bats, and follow the rules about timing.

When can bats be safely excluded?

Exclusion is avoided in summer when flightless young are in the roost, because sealing the adults out would leave the young trapped. The best time is usually late summer through fall, when young can fly. We explain the timing for your situation.

What is a one-way exit door?

It is a device placed over the main entry points that lets bats fly out at night but not get back in. Once the bats have left, we permanently seal the openings.

How small a gap can a bat get through?

Bats can squeeze through gaps as small as about 3/8 of an inch, roughly the width of a finger. That is why a whole-roof inspection matters, since missing one gap lets them back in.

Are bats dangerous? What if one is in my living space?

Bats can carry rabies, and bat bites can be tiny. If a bat is found in a room with a sleeping person, a child or a pet, or if someone has been bitten or scratched, contact a doctor or the local health department and do not release the bat. Never handle a bat with bare hands.

Is bat guano a health risk?

Large guano accumulations can grow a fungus that causes a lung infection called histoplasmosis. Do not sweep, vacuum or disturb droppings in an attic yourself. We offer safe cleanup and sanitizing.

Get your free bat exclusion quote

Tell us what you are hearing or seeing and we will call you back the same business day. Prefer to talk now? Call us.