How to Jack Up a House to Fix Foundation

Foundation issues can cause significant damage to your home if left untreated. One of the most effective ways to repair a sinking or settling foundation is to jack up the house.

Jacking up a house involves lifting the entire structure off its foundation using hydraulic jacks and cribbing, allowing for repairs or replacement of the foundation. This process is complex and requires professional expertise, specialized equipment, and careful execution.

In this article, we’ll walk through the steps involved in jacking up a house to fix the foundation, the risks involved, and why it’s typically best to rely on professional foundation repair services like those offered by TerraFirm Leveling.

Key Takeaways

  • Jacking up a house involves lifting it off the foundation using hydraulic jacks and cribbing to access the foundation for repair or replacement.
  • The process is complex and requires precision to avoid damage to the structure.
  • It is recommended to hire professionals for foundation lifting and repair to ensure the safety of both the home and the workers involved.

Why Jacking Up a House May Be Necessary

Foundation problems are typically caused by soil movement, poor drainage, or settling, which can lead to uneven floors, cracks in walls, and doors or windows that don’t close properly.

Jacking up a house allows for access to the foundation to correct these issues, whether it’s lifting the foundation back to level or replacing the foundation entirely.

Common Reasons for Jacking Up a House:

  • Foundation Settlement: Uneven settling caused by shifting soil or moisture can lead to a sinking foundation, which needs to be lifted for repair.
  • Foundation Cracks: Major cracks in the foundation may require the house to be lifted in order to reinforce or replace damaged sections.
  • Foundation Replacement: In cases where the foundation is too damaged to repair, the house is lifted so a new foundation can be installed.

How to Jack Up a House to Fix Foundation

Here’s a step-by-step guide to how professionals jack up a house to fix the foundation. Keep in mind that this is not a DIY project—jacking up a house requires expertise, specialized equipment, and safety precautions to avoid further damage to the home or serious injury.

1. Perform a Detailed Foundation Inspection

Before any lifting begins, a thorough inspection of the foundation and the house’s structure is necessary. This step ensures that the foundation issues are properly diagnosed, and the best approach is determined for the lifting and repair process.

What Happens During the Inspection:

  • Assessing Damage: Foundation experts will check for signs of settlement, cracks, moisture issues, and structural weaknesses.
  • Determining Lift Points: Professionals identify load-bearing walls and structural beams where hydraulic jacks will be placed for even lifting.
  • Planning the Lift: The inspection helps plan where to place the jacks and cribbing to ensure that the house is lifted evenly and safely.

2. Clear the Area and Disconnect Utilities

Before the house can be lifted, the area around the foundation must be cleared of obstacles, and all utilities need to be disconnected to avoid damage during the lift.

Preparation Steps:

  • Clear Obstructions: Remove landscaping, patios, decks, or any other structures that could interfere with the lifting process.
  • Disconnect Utilities: Water, electricity, gas, and sewer lines must be safely disconnected by licensed professionals to prevent damage or accidents during the lift.

3. Install Hydraulic Jacks and Support Beams

Hydraulic jacks are installed to lift the house evenly. These jacks are placed under steel or wooden support beams that distribute the weight of the house.

Installing the Jacks:

  • Place Support Beams: Steel beams (or heavy-duty wooden beams) are placed under the house, perpendicular to the floor joists. These beams act as a foundation for the hydraulic jacks and ensure that the house’s weight is evenly distributed during the lift.
  • Position Hydraulic Jacks: Hydraulic jacks are placed at key points along the support beams, typically under load-bearing walls or support columns, to lift the house evenly.

4. Slowly Lift the House

The house is lifted using the hydraulic jacks, which are operated in small, controlled increments. This ensures that the house is raised evenly and reduces the risk of damaging the structure.

Lifting Process:

  • Lift in Small Increments: The jacks are operated simultaneously to lift the house slowly, typically no more than a few inches at a time. This prevents the house from becoming unbalanced during the lift.
  • Monitor the Structure: The lifting team will continuously monitor the structure to ensure that no part of the house is under too much stress or shifting unevenly.

5. Stabilize the House with Cribbing

As the house is lifted, it must be stabilized using cribbing. Cribbing consists of stacked wooden blocks placed under the support beams to hold the house in its raised position while the foundation repairs are carried out.

Stabilization with Cribbing:

  • Install Cribbing: As the house is lifted, cribbing is placed under the beams to support the structure. The cribbing provides a stable base for the house while it’s in the air.
  • Ensure Stability: Cribbing must be level and able to safely support the weight of the house during the foundation repair process.

6. Repair or Replace the Foundation

Once the house is securely lifted and stabilized, the foundation repairs can begin. Depending on the condition of the foundation, repairs may involve reinforcing the existing foundation, leveling the foundation, or completely replacing it.

Foundation Repair Methods:

  • Slab Jacking: If the foundation is a slab and has settled, professionals may use slab jacking (injecting a grout mixture beneath the slab) to lift and level the foundation.
  • Pier Installation: For pier and beam foundations, new piers may be installed, or damaged piers may be replaced to stabilize the home.
  • Full Foundation Replacement: In severe cases, the entire foundation may need to be removed and replaced with a new, stable structure.

7. Lower the House Back onto the Foundation

After the foundation has been repaired or replaced, the house is carefully lowered back onto the new or stabilized foundation. This process is done with the same precision used during the lifting process.

Lowering the House:

  • Remove Cribbing: The cribbing is removed as the hydraulic jacks are used to carefully lower the house back into place.
  • Check Alignment: As the house is lowered, the team will ensure that the structure is properly aligned with the foundation and that the load is evenly distributed.

8. Reconnect Utilities and Perform Final Repairs

Once the house is back on its foundation, the final step is to reconnect all utilities and perform any necessary cosmetic repairs to restore the home to its original condition.

Final Steps:

  • Reconnect Utilities: Licensed professionals reconnect water, electricity, gas, and sewage lines to restore functionality to the home.
  • Cosmetic Repairs: Any minor cracks or damage to walls, floors, or ceilings caused by the foundation issues or lifting process are repaired.

Risks and Challenges of Jacking Up a House

While jacking up a house is an effective method for repairing foundation issues, it comes with risks and challenges that make it a job for professionals.

Potential Risks:

  • Structural Damage: Lifting a house unevenly or without the proper support can cause significant damage to the structure, including cracks in walls, floors, or ceilings.
  • Personal Injury: Without the proper equipment and experience, attempting to lift a house can result in serious injury. The weight of the house and the complexity of the equipment make this a dangerous task for non-professionals.
  • Further Foundation Issues: Improper lifting or repairs can exacerbate foundation problems, leading to costly and more extensive repairs down the line.

Why Hire a Professional for Foundation Lifting

Jacking up a house to fix the foundation is a complex and delicate process that requires professional expertise. While some homeowners may be tempted to try DIY solutions, the risks of improper lifting far outweigh the potential savings.

Benefits of Hiring Professionals:

  • Experience: Professionals have years of experience and specialized training to safely lift and repair foundations.
  • Advanced Equipment: Hydraulic jacks, cribbing, and other specialized tools are required for the lifting process—tools that are not accessible or safe for the average homeowner to use.
  • Long-Term Solutions: Professional foundation repair companies provide long-term solutions, ensuring the stability of your home for years to come.

Conclusion

Jacking up a house to fix foundation issues is a precise and technical process that requires specialized tools and professional expertise. While it’s a highly effective method for addressing foundation problems, it’s not something that homeowners should attempt on their own. The risks of structural damage, personal injury, and further foundation problems make hiring experienced professionals like TerraFirm Leveling the best choice for this kind of work.

If your home’s foundation is showing signs of settling or instability, contact a trusted foundation repair company to assess the situation and develop a plan for safely lifting and repairing your home.

FAQs

1. How much does it cost to jack up a house and fix the foundation?

The cost varies depending on the size of the home, the extent of the foundation damage, and the method of repair. On average, foundation lifting and repair can range from $5,000 to $30,000 or more.

2. How long does the process of jacking up a house take?

The timeline for jacking up a house and fixing the foundation depends on the complexity of the project. On average, the process can take anywhere from a few days to a couple of weeks.

3. Can any house be jacked up for foundation repair?

Most houses can be jacked up for foundation repair, but the feasibility depends on the condition of the home and the type of foundation. A professional inspection is needed to determine the best course of action.

4. What happens if my house isn’t lifted evenly?

If a house is not lifted evenly, it can cause significant structural damage, including cracks in walls, doors, and windows, and potentially further damage to the foundation. This is why it’s important to hire professionals to handle the lifting process.

5. Is jacking up a house the only solution for foundation repair?

No, jacking up a house is one of several methods used for foundation repair. Depending on the extent of the damage, alternatives like slab jacking or pier installation may be more appropriate.

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