The abundance of food in city centers and suburbs is a factor in the invasion of these places by rats. These rodents settle there and multiply quickly. Moreover, it is because they are looking for food that these small animals enter the houses. So how do they invade homes? Don’t they go under the doors?

Yes, rats go under the doors

The presence of rats in the house is never a good thing. To prevent such a situation from happening, it is essential to know how such a rodent gets into dwellings inhabited by humans. Rats are able to enter a house by passing under the door. It is the same for many other rodents such as mice, field mice, etc.

Doors that have a space of at least 2 cm below themselves offer rats the opportunity to invade the house. Sometimes the door does not offer a loophole at all for rodents to pass, but these animals eventually pass underneath. The fact is that they gnaw the base of the door if it is made of wood or other materials that the rat can gnaw. Thus, they create a space large enough to pass.

Precautions to prevent rats from entering the house

In order to reduce the risk of your home being pest infestation , you need to take a number of precautions.

obstruct all entry points to the dwelling

Depending on the quality of the building materials as well as the age of the house, it will have more or less holes and other gaps. Apart from the underside of the doors, these faults are crossing points for rats and mice. You should therefore regularly inspect the exterior walls and roof of your home to identify and plug these holes.

To close these gaps, it is essential to use resistant and quality materials. A self-expanding foam won’t do. At Delta Extermination, we recommend using caulks such as silicone sealant and cement. These are true anti-intrusions.

Close doors and windows

Rats, like many other rodents, are active during the night. Therefore, do not leave your doors and windows open when the day begins to decline and darkness gradually sets in. This is a precaution that should be taken especially if you live in a humid or highly vegetated environment. By taking this precaution, you prevent small beings from entering your home through these entrances.


Rodents thrive enormously in unsanitary and food-rich environments. For this, it is no less important to start by cutting the branches of the trees that are in your home. It is also necessary to remove any vegetation that would serve as shelter or food for rats, field mice and mice.

Humidity is also a factor in the infestation of a house by rodents and other pests. Therefore, you need to unclog the gutters so that they can release the water that stagnates in them. Do the same for recycling tanks and garbage cans. The slightest trace of water is sufficient for the survival of rodents.

Protecting food sources

Rats have an extremely acute and developed sense of smell. This allows them to spot the slightest food in their environment. So that odors do not emanate from your food stocks to invite rodents, you must seal their containers. In the same vein, also close your garbage cans, as food waste could invite these critters to your home. Do not leave crumbs and leftover food lying around the house.


Use the services of professionals in case of rat infestation

It may be that although you have taken all possible precautions, rats still manage to settle in your home. So, at the slightest notice of their presence in your home, it is urgent to call Delta Extermination. No rat resists our rat control techniques. Indeed, not only are the products we use environmentally friendly, but they are flawlessly effective.

It should be noted that before proceeding with any intervention, we inspect the entire house to detect the flaws that serve as entry for the rat into the house. Then we plug all the gaps found. Finally, we give you advice to prevent rats from passing under your doors to invade your home again.