Bat & Bird Removal · Guelph

Bat and Bird Removal in Guelph

Bats get in through gaps you cannot see and leave guano you can smell. Birds block vents that are supposed to move air out of your house. Both are exclusion jobs with a calendar attached.

Bats and birds are grouped here because the work is the same shape: small openings, seasonal timing you cannot ignore, and a cleanup afterwards that matters as much as the removal.

Bats

A bat needs a gap roughly the width of a finger. Century homes through The Ward, Old University and Exhibition Park supply them everywhere: the joint where the soffit meets the brick, gaps under loose flashing, a ridge that has lifted, mortar failure at the top of a chimney, and the seam behind old fascia board. Out in Puslinch, Rockwood and the Eramosa townships it is bank barns, drive sheds and old stone farmhouses, and the colonies there can be considerably larger.

The signs are specific. A dry rustling or squeaking in a wall or attic on warm summer evenings. Small dark droppings collecting below a single spot on the exterior wall or on the sill — bat guano crumbles to a glittery powder between your fingers, which is how it is told apart from mouse droppings, which stay hard. A sharp ammonia smell in an attic in August. And bats emerging at dusk from the same point on your roof night after night, which is the single most useful thing you can film for whoever you call.

Bat exclusion is timed, and the timing is not negotiable

A maternity colony has flightless pups through the summer. Exclude the adults during that window and the pups are sealed in — they die in the wall, the smell is severe and lasts, and the colony was not solved anyway. Reputable operators do not do it. Exclusion is done before the young are born or after they are flying, and the right answer for your building depends on the month you call. If someone offers to seal your attic in mid-July without asking a single question about pups, that tells you what you need to know about them.

The method itself is one-way valves or netting over the confirmed exit points, every other gap sealed first, a monitoring period, then removal of the valves and permanent sealing. Century-home sealing is slow work because the openings are irregular and the materials are old — it is backer rod, sealant, flashing and mesh shaped to fit, not a tube of foam run along a roof edge.

A bat inside the living space

Treat any direct contact as a medical question, not a wildlife question. Bats have small teeth and a bite can go unnoticed, which is why the standing public-health guidance is that a bat found in a room with a sleeping person, a young child, or anyone who cannot reliably say they were not touched, is a reason to call public health and a doctor. If you can do it safely, contain the bat under a container rather than releasing it or killing it, because testing may be advised. If you cannot, close the room, close the interior doors, and open a window to the outside.

Guano cleanup

An established roost leaves accumulated guano and urine staining that soaks into insulation and wood, holds the ammonia smell, and is not a shop-vac job. It comes out with respiratory protection and containment, the affected insulation goes with it, and the cavity gets treated and re-insulated. That is covered on the attic restoration page and it is quoted separately from the exclusion.

Birds and starlings in vents

European starlings and house sparrows treat a dryer vent, a bathroom exhaust or a kitchen hood outlet as a hollow with a built-in flap door. They pack it solid with nesting material, and three things follow: the vent stops exhausting, the lint and straw in a dryer duct becomes a genuine fire risk, and you get chirping in the bathroom wall at six in the morning followed by mites when the nest is abandoned.

  • Nesting material removed and the duct run cleared properly, not just the outlet
  • Active nests with eggs or chicks handled with timing in mind rather than pulled out on the spot
  • Stainless or galvanised vent guards fitted that still allow full airflow and a working damper — a blocked vent guard causes a different problem
  • Roof and gable vents re-screened from behind
  • Mite and debris cleanup where the nest was established

Chimney swifts and some other native birds are protected and are not simply removed on request; the right answer with those is timing and a proper cap installed once the chimney is clear. You will be told which situation you are in.

Bats at dusk or a blocked vent? Call 548-290-8013 or request a quote, or see our 2026 wildlife removal cost guide for Guelph for real price ranges first.

Frequently asked questions

Can you get bats out in July?

Usually not by exclusion, and that is deliberate. Mid-summer is when flightless pups are in the roost, and sealing then kills them inside your wall. What can happen in July is a full inspection, confirming the exit points, sealing every gap that is not an active exit, and booking the exclusion for the right window. Anyone who tells you the month does not matter is wrong.

A bat was flying around the bedroom last night. What do I do?

Treat it as a health question first. If anyone was asleep in the room, or a young child or someone who cannot answer clearly was in there, call your doctor and public health. If you can safely trap the bat under a container against a wall and slide card underneath, do that rather than letting it out, because testing may be advised. Then get the building looked at, because one bat inside usually means a roost somewhere above you.

There are birds in my dryer vent. Is that urgent?

Reasonably, yes. A blocked dryer duct packed with nesting material and lint is a fire risk and it stops the dryer venting properly, which pushes moisture into the wall. It is also a quick job compared to most things on this site — clear the run, fit a proper guard that still lets the damper work, done.

Serving Guelph and surrounding areas. Contact us for a no-obligation quote specific to your property.

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