A snake in the house is almost never there because it likes you. It is there because it found a way in, and it is looking for the same things every animal wants: warmth, shelter, and something to eat, which usually means the mice or insects that are also in your house.
The good news is that most snakes that end up indoors are harmless. The bad news is that a hiding snake is hard to find, because they are very good at staying still. Here is where they go, and how to know one is there.
How snakes get in
Snakes are basically a long tube of muscle, and they can fit through gaps that look impossible. The usual routes in:
- torn window or door screens
- open basement windows
- cracks in the foundation
- gaps around pipes, wires, and vents
- spaces under doors that do not seal
If a mouse can fit through it, a small snake can too. Sealing the same gaps that keep out rodents is what keeps out snakes.
Where they hide
Snakes want dark, quiet, undisturbed spots that are close to food. The most common hiding places:
- Basements and crawlspaces, dark and damp, with the most access to rodents.
- Behind and under appliances, refrigerators, stoves, washers, and water heaters put off warmth.
- In attic insulation, if they can get in through the roofline.
- Inside walls, moving through the cavities once they are in.
- Behind cabinets and furniture, dark and rarely disturbed.
- In closets, especially low shelves, quiet and often cluttered.
- Around pipes and utility openings.
- In potted plants, warm, moist soil is tempting.
Signs a snake is in the house
- Shed skin, the clearest sign. Look in corners, along walls, and behind appliances.
- Droppings, often liquid with a white, chalky tip.
- Slither tracks, S-shaped trails in dust.
- A musky smell some snakes give off.
- Rustling sounds from insulation or clutter.
What to do if you find one
First, do not try to handle or kill it. Most indoor snakes are harmless, but you do not want to get it wrong on a venomous one, and a cornered snake will bite.
If you can identify it confidently as harmless and you want it gone, you can often guide it out or scoop it into a bucket with a lid. If you are not sure what it is, or it is hiding where you cannot reach it, call a wildlife professional or animal control. Let them do the identifying and the catching.
Frequently Asked Questions
Closets, especially low shelves, under beds, behind dressers, and inside shoes or piles of clothes. Check warm spots near radiators or vents.
Small snakes can get into hollow furniture legs, under cushions, and inside drawers. Upholstered furniture is especially inviting because it is warm and dark.
Work the common spots: behind appliances, in closets, in basement corners, in attic insulation. Look for shed skin and droppings. If you cannot find it, call a professional.
Some snakes move at night, others during the day. Either way, a snake in the house will move around to hunt and explore, so it may turn up somewhere you already checked.
Usually not. Most snakes found indoors are harmless species. The problem is that identifying them is hard for a non-expert, so treat any snake as possibly dangerous and call someone if you are unsure.
Seal gaps with 1/4 inch hardware cloth, fix screens and door sweeps, control the rodents they eat, and clear the clutter in basements and crawlspaces. No food, no entry, no snake.
