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Should I be worried about a lizard in my house? Exploring the potential risks and benefits of having lizards as house guests

Lizards are common creatures that can be found in many parts of the world, including homes. While some people may find them fascinating or even cute, others may feel uneasy or fearful about having a lizard in their house. So, should you be worried about a lizard in your house? The answer is, it depends.

Firstly, it’s important to note that not all lizards are the same. There are many different species of lizards, ranging in size, color, and behavior. Some lizards, such as geckos, are commonly found in homes and are generally harmless. They can even be beneficial, as they eat insects and other pests. However, other species of lizards, such as monitor lizards, can be dangerous and should be avoided.

Secondly, the location of the lizard in your house can also impact whether or not you should be worried. If the lizard is outside or in a non-invasive area of your home, such as a garage or shed, then there may be no cause for concern. However, if the lizard is inside your home and in a place where it can cause damage or pose a threat to you or your family, then it may be necessary to take action.

Assessing the Situation

When it comes to finding a lizard in your house, the first thing to do is to assess the situation. This involves understanding the types of common house lizards and the potential risks and benefits of having them in your home.

Types of Common House Lizards

A Tarentola Wall Gecko lizard walking on a wall.

A Tarentola Wall Gecko lizard walking on a wall.

There are several types of lizards that are commonly found in homes, including geckos, skinks, and anoles. Geckos are known for their distinctive chirping sounds and sticky feet, which allow them to climb walls and ceilings. Skinks are often mistaken for snakes due to their long, slender bodies and shiny scales. Anoles, on the other hand, are small and agile lizards that can change color to blend in with their surroundings.

Potential Risks and Benefits

While having a lizard in your house may seem alarming, it is important to understand that they can actually be beneficial. Lizards are natural predators of insects, such as mosquitoes and cockroaches, which can help to control their populations in your home. However, it is important to note that some lizards, such as the brown anole, can also be invasive and compete with native species.

In terms of risks, lizards are generally harmless to humans. However, they can carry salmonella bacteria, which can cause illness if ingested. It is important to wash your hands thoroughly after handling a lizard or any surfaces that they have come into contact with.

Overall, assessing the situation when it comes to finding a lizard in your house involves understanding the types of common house lizards and the potential risks and benefits of having them in your home. By doing so, you can make an informed decision on how to handle the situation.

Preventive Measures

Sealing Entry Points

To prevent lizards from entering your house, it is essential to seal all possible entry points. Lizards can squeeze through small gaps, so it is important to inspect your home thoroughly. Check for gaps around windows, doors, and pipes, and seal them with caulk or weather stripping. You can also use mesh screens to cover vents and openings in walls or roofs.

Natural Deterrents

There are several natural deterrents that can help keep lizards away from your home. One option is to plant garlic, onion, or lemongrass around your home, as lizards dislike the smell of these plants. You can also use eggshells, coffee grounds, or tobacco to create a barrier around your home. These substances can be scattered around entry points or in areas where lizards are commonly seen.

Another natural deterrent is to keep your home clean and free of clutter. Lizards are attracted to dark and cluttered spaces, so keeping your home tidy and well-lit can help deter them. Additionally, you can use essential oils, such as peppermint or lavender, to repel lizards. Simply mix a few drops of the oil with water and spray it around your home.

By taking these preventive measures, you can reduce the likelihood of lizards entering your home. However, if you do find a lizard in your house, it is important to remain calm and remove it safely.

Safe Removal Strategies

If you have a lizard in your house and want to remove it, there are several safe and humane methods to consider. This section will cover two main strategies: catch and release methods and professional extermination options.

Catch and Release Methods

One option for removing a lizard from your home is to catch it and release it back into the wild. This can be done using a variety of methods, including:

  • Using a humane lizard trap: These traps are designed to capture the lizard without harming it. Once caught, the lizard can be released outside away from your home.
  • Using a towel or cloth: Gently place the towel or cloth over the lizard and carefully pick it up. Release the lizard outside away from your home.
  • Using a cardboard box: Place the box over the lizard and slide a piece of cardboard underneath to trap it. Release the lizard outside away from your home.

It’s important to note that if you choose to catch and release a lizard, you should release it in an area with suitable habitat and food sources. Avoid releasing it in an area where it may become prey to other animals or where it may cause harm to the ecosystem.

Professional Extermination Options

If you are unable to remove the lizard yourself or if you have a large infestation, you may want to consider hiring a professional exterminator. They can safely and effectively remove the lizards from your home using methods such as:

  • Using lizard repellents: These are chemicals that can be sprayed or placed around your home to repel lizards.
  • Using traps: Similar to humane lizard traps, these traps can be used to capture the lizards without harming them.
  • Using pesticides: If the infestation is severe, pesticides may be necessary to eliminate the lizards.

It’s important to choose a reputable and experienced exterminator to ensure that the removal is done safely and effectively. Always ask for references and check online reviews before hiring an exterminator.

When to Seek Professional Help

If you have a lizard in your house and you are unsure of how to handle the situation, it may be time to seek professional help. Here are a few scenarios where it is recommended to call in a professional:

  • If you have a phobia or fear of lizards, it is best to call in a professional to remove the lizard from your home.
  • If the lizard is venomous or potentially dangerous, it is important to seek professional help to safely remove it from your home.
  • If you have tried multiple methods to remove the lizard with no success, it may be time to call in a professional.

Professional pest control companies have the necessary equipment and expertise to safely remove lizards from your home. They can also provide advice on how to prevent future infestations.

It is important to note that not all lizards are harmful or dangerous. Some species are actually beneficial to have around as they can help control insect populations. However, if you are unsure of the type of lizard in your home or how to handle the situation, it is always best to err on the side of caution and seek professional help.


Hi, this is me with my daughter and my Lizard friend. I hope you enjoy my research. Please feel free to check out my "About Me" page to find out more about me.