Cost Of Digging A Basement Under Existing House : Basedhomed

Cost Of Digging A Basement Under Existing House

Digging a basement under an existing house can be a complex and expensive project. The cost will vary depending on a number of factors, including the size of the basement, the depth of the excavation, the soil conditions, and the location of the house. However, as a general rule of thumb, you can expect to pay between $15,000 and $50,000 for a basement excavation.

The first step in determining the cost of digging a basement is to figure out the size of the basement you want. The size of the basement will determine the amount of excavation that needs to be done, which will in turn affect the cost of the project. Once you know the size of the basement you want, you need to determine the depth of the excavation. The depth of the excavation will depend on the height of the basement ceiling and the thickness of the foundation walls.

Once you know the size and depth of the excavation, you need to determine the soil conditions. The soil conditions will affect the difficulty of the excavation and the cost of the project. For example, if the soil is hard and rocky, the excavation will be more difficult and expensive than if the soil is soft and sandy.

Finally, you need to determine the location of the house. The location of the house will affect the cost of the project. For example, if the house is located in a remote area, the cost of the excavation will be higher than if the house is located in an urban area.

Once you have considered all of these factors, you can start to get a sense of the cost of digging a basement under your existing house. It's always best to get a professional estimate before starting any excavation work.

Here are some additional factors that can affect the cost of digging a basement:

The presence of utilities. If there are any utilities running through the area where you want to excavate, the cost of the project will be higher.
The need for underpinning. If the foundation of your house is weak, you may need to underpin it before you can excavate a basement. This will add to the cost of the project.
The need for waterproofing. Once the basement is excavated, you will need to waterproof it to prevent water from seeping in. The cost of waterproofing will depend on the size of the basement and the materials used.