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Reptiles & Amphibians

How to Get a Frog Out of Your House Without Hurting It

A frog indoors is lost and drying out, not invading. How to corner one safely, where they get in, and the one mistake that kills them on the way out.

By Zakaria 4 min read Save to Pinterest — opens Pinterest in a new tab
A small gray tree frog peering over the edge of a broad green leaf
Photo: Hansen, Rick L, U.S. Fish and Wildlife Service, Public domain, via Wikimedia Commons
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A frog in the house is lost and drying out. It came in under a door following insects or damp air, and the indoor environment will kill it within a day or two if nobody gets it back outside.

First, contain the room

Before anything else, shut the interior doors. A frog that gets into the rest of the house while you look for a container turns a five-minute job into an hour of moving furniture.

Then turn the lights off, open an exterior door or a low window, and wait a few minutes. Frogs orient toward cool, dark, humid air, and a fair number walk themselves out of a dark room with a lit gap of damp night air on one side.

Catching one properly

Wet hands, or nothing

A frog drinks and breathes through its skin, so whatever is on your hands goes into the animal. Soap residue, hand sanitiser, sunscreen, insect repellent and lotion are all harmful, and dry hands strip the mucus layer it needs. Rinse in cool untreated water first, or use a rinsed unpowdered nitrile glove. Never use hot water.

The container method, which works on everything:

  1. Put a plastic container or a bowl over the frog.
  2. Slide a piece of card or thin cardboard underneath.
  3. Lift, keeping the card flat against the rim.
  4. Carry it outside and tip it gently into cover.

This beats hand-catching for the same reason it beats it with spiders: no squeezing, no chase, and it works on tree frogs that jump the instant a hand approaches.

If it is hiding behind or under furniture, put a damp cloth and a shallow dish of untreated water nearby, leave the room dark with the outside door open, and check in an hour. Frogs move at night.

Where to release it

Release sites, best to worst
SiteVerdict
Leaf litter or under a shrub, near the houseBest — damp, shaded, familiar territory
Beside a pond or damp ditch on your propertyExcellent
A compost heap or log pileGood
Open lawn in daylightPoor — exposed, drying, visible to predators
A different neighbourhood or a parkAvoid — stressful, often illegal, spreads disease

Amphibians carry chytrid fungus and ranavirus between sites, and both have caused severe declines. Release close to where the animal came from.

How it got in

Frogs are far more flexible than their body size suggests. Work through these with a flashlight:

  • The gap under an exterior door — the most common route of all. A door sweep fixes it.
  • The garage door, especially if it is warped at the corners.
  • Basement and cellar windows, and any window with a torn screen.
  • Uncapped drains, weep holes and pipe penetrations.
  • Pet doors left unlocked overnight.
  • Window wells — covered below, because they deserve their own section.

Handling any pond or water animal leaves the same smell on your hands — how to remove fishy smell from hands.

Window wells are the real culprit

If frogs keep appearing indoors, look here first.

A window well is a pit trap. Frogs, toads and salamanders fall in, cannot climb the smooth sides, and then either go through the basement window or die in the bottom of the well. Leaf litter and standing water collecting in the well make it attractive in the first place.

Two fixes, both permanent:

  • A well cover — a clear polycarbonate cover keeps the light and keeps everything out.
  • An escape ramp — a rough plank, or a strip of chicken wire sloped from the bottom of the well to ground level, so anything that falls in can walk out.

Clear the leaves and any standing water out while you are there, and check after heavy rain, which is when amphibians move most.

Reducing the reason they are close to the house

The same three changes that keep frogs out of a pool keep them off the doorstep:

  • Yellow bug bulbs on outdoor fixtures, or a motion sensor instead of a light left on. White light concentrates the insects frogs are hunting.
  • No standing water within a few feet of the house — saucers, clogged gutters, buckets.
  • A drier band along the foundation: clear leaf litter and dense groundcover back a couple of feet.

Do not spray anything

Chemical frog repellents do not work well and are absorbed straight through the animal’s skin, and salt and vinegar are worse. The gap under the door is the problem, and no spray closes it.

Step by step

Time
PT20M
Cost
$15
You need
A plastic container and a piece of card, A damp cloth or paper towel, Door sweeps and foam weatherstrip, for the follow-up
Tools
Flashlight

  1. Close the room off

    Shut the interior doors so the frog cannot hop into the rest of the house while you fetch a container. A frog loose in one room is a five-minute job; a frog loose in a house is an evening.

  2. Dim the room and open one exterior door

    Turn the lights off, open a door or low window to the outside, and give it a few minutes. Frogs move toward cool, damp, dark air, and a surprising number see themselves out before you have to touch anything.

  3. Wet your hands before touching it

    A frog breathes and drinks through its skin, and dry hands strip the mucus layer that makes that possible. Rinse in cool untreated water — not hot, not soapy, no hand sanitiser or lotion residue — or use a rinsed unpowdered nitrile glove.

  4. Cup and trap rather than grab

    Put a container over the frog, slide a piece of card underneath, and lift. This is easier than catching one by hand, it never squeezes the animal, and it works on the fast tree frogs that jump the moment a hand comes near.

  5. Release it in damp cover, not on open lawn

    Let it go under a shrub, in leaf litter, beside a pond or anywhere shaded and damp, close to the house rather than miles away. Open grass in daylight leaves it exposed to drying out and to predators, and relocating amphibians far from where they were found is bad for them and often illegal.

  6. Find the way in and close it

    Check the gap under exterior doors, the garage door, basement windows, torn screens, uncapped drains and pipe penetrations. Fit door sweeps and foam weatherstrip. Frogs are flexible and get through gaps far smaller than they look capable of.

  7. Deal with the window wells

    An uncovered window well is a pit a frog falls into and cannot climb out of, and it is the single most common source of repeat indoor frogs. Fit a well cover, or put a rough board or a length of chicken wire sloped from the bottom to the top as a permanent escape ramp.

Common questions

How do I get a frog out of my house?

Close the interior doors, turn the lights off, and open an exterior door — many frogs leave on their own within a few minutes because they move toward cool, dark, damp air. If it needs catching, wet your hands in cool untreated water first, put a container over the frog, slide card underneath and carry it out. Release it under a shrub or in leaf litter near the house, not on open lawn.

How did a frog get into my house?

Usually under an exterior door or garage door, through a torn screen, through a basement window, or up from a window well it fell into and could not climb out of. Frogs are flexible and use gaps far smaller than they appear able to. They come in following insects around lights or looking for damp shelter in dry weather, not because they are interested in the house.

Is it bad luck or a bad sign to have a frog in the house?

It is a sign you have a gap under a door and probably an uncovered window well. Frogs indoors are lost and dehydrating — the house is a hostile, dry environment for them and most die within a day or two if nobody notices. The practical reading is that the same gap is letting in drafts, insects and occasionally mice.

Can I pick a frog up with bare hands?

Yes, if your hands are wet with clean untreated water and free of soap, lotion, sunscreen, insect repellent and hand sanitiser — all of which are absorbed directly through a frog's permeable skin. Dry hands remove the protective mucus. Wash your own hands afterwards, since amphibians can carry salmonella, and keep fingers away from your face in between.

How long can a frog survive indoors?

Often only a day or two. The limiting factor is water, not food: indoor air is dry, central heating is drier still, and a frog loses moisture continuously through its skin. A frog found dried out and stiff behind furniture died of dehydration. That is why it is worth finding one the same evening rather than leaving the door open and hoping.

How do I stop frogs getting in the window well?

Fit a window well cover, which solves it permanently, or put a permanent escape route in — a rough plank or a strip of chicken wire sloped from the bottom of the well to ground level. Clear leaf litter and standing water out of the well too, since a damp well full of insects is attractive in the first place. Check it after rain, which is when frogs and toads move most.

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