Foundation Raising

Foundation raising, or house lifting, is a complex process that involves physically lifting a building off its existing foundation and installing a new or improved foundation beneath it. It is a technique employed for a variety of reasons, including repairing damaged foundations, preventing flood damage, and improving basement spaces. In this article, we will examine the process of foundation raising, reasons for its necessity, the steps involved in performing this intricate task, and answer a few commonly asked questions.

Understanding Foundation Raising

Foundation raising involves the use of hydraulic jacks to lift a building off its foundation. Once the building is safely lifted, a new or reinforced foundation is installed underneath it. The process is technically demanding and requires a team of experienced professionals to ensure the safety and integrity of the structure.

Why Foundation Raising is Necessary

There are several reasons why foundation raising may be necessary:

1. Foundation Damage: Over time, a building's foundation may suffer from wear and tear, settlement, or other forms of damage. Raising the foundation allows for these issues to be rectified.
2. Flood Mitigation: In flood-prone areas, raising the foundation can prevent water damage by keeping the living spaces above the potential flood levels.
3. Adding Basement Space: Raising the foundation can also facilitate the addition of a basement level or the enhancement of an existing one, providing extra living or storage space.

Steps in Raising a Foundation

1. Site Assessment: The first step involves a thorough assessment of the building and its existing foundation. This includes analyzing the structure's weight, dimensions, current foundation condition, and understanding the reasons for raising the foundation.
2. Plan Development: A detailed plan is developed based on the site assessment, specifying how the lift will be performed and the type of new foundation to be installed.
3. Preparation: All utilities are disconnected, and temporary supports are installed as needed.
4. Lifting: Hydraulic jacks are strategically placed around the structure. The building is then lifted slowly and carefully to the desired height.
5. Foundation Construction: The old foundation is repaired or a new foundation is built as per the design requirements.
6. Lowering and Finishing: Once the new foundation is ready and has sufficiently cured, the building is carefully lowered onto it. All utilities are reconnected, and the site is cleaned up.

Frequently Asked Questions

Q: How long does it take to raise a foundation?

A: The duration of a foundation raising project can vary widely depending on the size and complexity of the building, the condition of the existing foundation, and the specifics of the new foundation. However, on average, it may take a few weeks to a couple of months.

Q: Is foundation raising safe?

A: When done by experienced professionals, foundation raising is generally safe. However, it is a complex process that requires specialized knowledge and equipment. Homeowners should not attempt to raise a foundation without professional help.

Q: How much does it cost to raise a foundation?

A: The cost of foundation raising can vary significantly based on a range of factors, including the size of the structure, the height it's being raised, the condition of the existing foundation, and local labor costs.



Conclusion

In conclusion, foundation raising is a technically challenging but sometimes necessary procedure. Whether it's for the repair of an existing foundation, to safeguard against floods, or to add extra living space, raising a foundation can significantly enhance a building's value and longevity. Understanding the process and its implications helps homeowners make informed decisions about the maintenance and improvement of their properties. Always consult with professionals when considering such a significant structural modification.