If you’ve found a rattlesnake inside your home, get everyone (including pets) out of the room, close the door, and call a professional wildlife removal service. Do not attempt to catch, kill, or corner the snake. Most removal services charge around $100 per call, which is far less than the cost of a hospital visit from a bite.
While you wait for help, stuff a towel under the closed door to keep the snake contained in one room. If you can safely watch from a distance, keep track of where the snake goes so you can direct the removal technician.
Who to Call for Removal
Your best options depend on where you live. In areas with significant rattlesnake populations (the Southwest U.S., parts of California, Texas, and the Southeast), dedicated snake removal services often operate 24/7 with after-hours hotlines. Search for “rattlesnake removal” plus your city or county. Many herpetological societies also run rescue and relocation programs.
If you can’t find a specialist, call your local animal control department or a licensed pest and wildlife control company. Fire departments in rattlesnake-prone regions will sometimes respond to venomous snake calls as well, though policies vary. The snake will be relocated to appropriate habitat rather than killed, in most cases.
Make Sure It’s Actually a Rattlesnake
Several nonvenomous species, especially gopher snakes and bull snakes, look strikingly similar to rattlesnakes and even mimic their behavior by flattening their heads and vibrating their tails when threatened. From a safe distance, look for these distinguishing features:
- Rattle: The most obvious identifier. A segmented rattle at the tip of the tail is unique to rattlesnakes. Gopher snakes lack one entirely, though they may buzz their tail against surfaces.
- Body shape: Rattlesnakes are stocky and heavy-bodied, typically 3 to 6 feet long. Gopher snakes are longer (up to 8 or 9 feet) but noticeably slimmer and more tapered.
- Head shape: Rattlesnakes have a wide, triangular head with a pointed snout. Gopher snakes have a rounder, blunter snout, though they flatten their head to look triangular when scared.
- Eyes: Rattlesnakes have vertical, slit-shaped pupils (like a cat). Nonvenomous lookalikes have round pupils.
- Pattern: Rattlesnakes tend to be darker overall with distinct diamond or hexagonal patterns. Gopher snakes are usually brown or tan with dark blotches or a checkered pattern.
If you’re not sure, treat it as venomous. The identification exercise is useful after the fact, not while you’re standing in the same room.
How Rattlesnakes Get Inside
Rattlesnakes don’t wander into homes randomly. They follow prey (usually mice or rats), seek shelter from extreme heat or cold, or stumble through gaps while exploring. Most snakes can fit through a crack as narrow as half an inch. If you can see daylight under a door or around a pipe, a snake can get through.
The most common entry points include gaps beneath exterior doors, cracks in the foundation or where a porch or patio meets the house wall, openings around plumbing and utility pipes, damaged or missing vent covers, and garage doors that don’t seal flush to the ground. In warmer climates, snakes have even entered through cracked sewer lines or open drain pipes, following frogs and rodents through the plumbing network. Roof vent pipes for the plumbing system, which stick up from the roofline to release sewer gases, are another documented entry point for snakes that climb trees and drop onto roofs.
Why Your Home Attracted One
The formula is simple: food plus water plus shelter plus access equals rattlesnakes. A rodent problem is the single biggest factor that draws them to a property. Rattlesnakes are ambush predators that follow the scent trails of mice and rats, and if those trails lead into your garage or crawl space, the snake will follow.
Leaky outdoor faucets, pet water bowls, and irrigated landscaping near the house provide water sources. Dense ground cover, woodpiles, rock walls, and cluttered storage areas offer shelter. Addressing any of these attractants reduces your risk significantly. If you have an active rodent issue inside, resolving it is the single most effective step you can take to avoid future snake encounters.
How to Snake-Proof Your Home
Start with a thorough inspection of your home’s exterior. Walk the perimeter and look for any gap, crack, or opening. Pay special attention to where the foundation meets the ground, around pipe and wire penetrations, under doors, and along garage door seals. Seal foundation cracks with caulk or expanding foam. Install door sweeps or pest seal strips on every exterior door, and replace any that are worn or damaged.
For yards in high-risk areas, snake-exclusion fencing is the gold standard. Industry specifications call for metal mesh (galvanized hardware cloth or steel) with gaps no larger than one-quarter inch. Baby rattlesnakes can crawl through gaps as small as one-third of an inch, so standard half-inch hardware cloth is not sufficient. The mesh should stand at least 30 inches above the nearest ground surface, with 36 inches recommended. The fence needs to be flush with the ground along its entire length, with no gaps at gates or corners.
Keep vegetation trimmed short near the house, move woodpiles and rock features away from exterior walls, and eliminate ground-level hiding spots. Motion-activated lights won’t repel snakes directly, but they help you spot one before you step on it.
If Someone Gets Bitten
Call 911 immediately. Do not wait for symptoms to appear. Rattlesnake venom can cause rapid tissue swelling, internal bleeding, and in severe cases, life-threatening drops in blood pressure.
While waiting for emergency responders, move away from the snake and stay as still and calm as possible. Remove rings, watches, bracelets, and tight clothing before swelling starts. Wash the bite with soap and water, cover it loosely with a clean bandage, and keep the bitten limb roughly at heart level. If swelling begins, mark the edge of it with a pen and note the time. This gives the medical team a way to track how fast the venom is spreading.
Do not apply a tourniquet, ice, or suction device. Do not cut the wound. Avoid aspirin, ibuprofen, and other pain relievers that can thin the blood or interfere with clotting. Don’t drink caffeine or alcohol. And don’t waste time trying to catch or trap the snake. Try to remember its size, color, and pattern so you can describe it to medical staff.
At the hospital, treatment for a confirmed envenomation involves antivenom given intravenously. There is no single standard dose. Doctors adjust the amount based on how your body responds, with the goal of stopping the progression of swelling and correcting any blood-clotting problems. Patients are typically monitored for 18 to 24 hours after treatment, with follow-up blood work scheduled in the days after discharge to check for delayed effects on clotting.