How To Fix An Unlevel House: Step-by-Step Guide

How to Fix an Unlevel House

An unlevel house is more than just an aesthetic issue—it can lead to long-term structural damage, cause floors to slope, doors to stick, and create cracks in your walls.

If you’ve noticed any of these signs, it’s essential to address the problem before it worsens.

But where do you start, and what’s the best way to fix an unlevel house?

This comprehensive guide will walk you through the process of identifying, addressing, and correcting the issue to ensure your home remains stable for years to come.

Key Takeaways

Fixing an unlevel house involves determining the underlying cause, such as foundation settlement or soil movement, and choosing the right repair method.
Different methods include hydraulic jacking, steel or concrete piers, and slab leveling, each suited to different types of foundation issues.
Regular maintenance and addressing underlying causes like poor drainage can prevent future foundation problems and keep your house level.

Signs That Your House Is Unlevel

Before diving into how to fix an unlevel house, it’s essential to confirm that your home is indeed suffering from foundation issues. Sometimes, the signs are subtle, and other times they are glaringly obvious. Here are some of the most common signs that your house may be unlevel:

1. Sloping or Uneven Floors

One of the first and most noticeable signs of an unlevel house is sloping or uneven floors. If you feel like you’re walking downhill in certain rooms or if furniture seems to tilt awkwardly, this is a clear indication that the foundation may have shifted.

2. Sticking Doors and Windows

When a house becomes unlevel, the frames around doors and windows can become misaligned. This causes doors to stick or windows to jam when opening and closing. If you notice doors suddenly not latching properly or windows that were once smooth now sticking, your home’s foundation might be the culprit.

3. Cracks in the Walls or Ceiling

Cracks in drywall, plaster, or even brick are telltale signs of an unlevel house. Pay particular attention to cracks that form in a stair-step pattern or around the corners of doors and windows. While small hairline cracks can be normal in aging homes, widening cracks may point to more serious structural issues.

4. Gaps Between the Floor and Walls

If you see gaps forming between the floor and walls, or if baseboards no longer sit flush against the floor, it’s a good indication that the foundation has shifted. This gap can widen over time as the problem worsens, leading to even more noticeable misalignment throughout your home.

5. Water Pooling Around the Foundation

Water damage is often a contributing factor to foundation issues. If you notice water pooling around the outside of your home after heavy rains, it could be eroding the soil beneath your foundation. This can lead to uneven settling and an unlevel house, particularly in areas with clay-rich soil like the Texas Gulf Coast, where moisture fluctuation can cause significant soil movement.

Determining the Cause of the Problem

Once you’ve identified the signs of an unlevel house, the next step is to determine the underlying cause. It’s crucial to understand why your house is unlevel before jumping to a solution. Here are some common causes of foundation issues:

1. Soil Movement

One of the most common causes of an unlevel house is soil movement. In regions like the Texas Gulf Coast, expansive clay soils can expand when wet and contract when dry, leading to foundation shifting. Over time, this soil movement can cause parts of the foundation to settle unevenly, resulting in sloping floors and cracks in the walls.

2. Poor Drainage

If water is not properly draining away from your home’s foundation, it can erode the soil, causing the foundation to shift. This is particularly problematic in areas prone to heavy rainfall or flooding, where excess moisture can destabilize the ground under your home. Proper drainage systems, such as gutters and downspouts, are critical for preventing foundation problems related to water damage.

3. Natural Settling

All homes settle over time, but excessive settling can lead to an unlevel foundation. This is more common in older homes, where natural settling may have occurred unevenly, leading to sloping floors and sticking doors. While minor settling is normal, large shifts can cause structural problems that need to be addressed.

4. Poor Construction

Unfortunately, some homes are built on improperly compacted soil or with materials that aren’t up to standard. If a foundation isn’t constructed properly from the beginning, it’s more likely to experience shifting and settling issues, causing the house to become unlevel sooner than expected.

5. Tree Roots

Believe it or not, tree roots can sometimes cause foundation problems. Large trees near your home can grow roots that extend underneath the foundation, causing it to shift over time. This can lead to cracking, uneven floors, and other issues commonly associated with an unlevel house.

How to Fix an Unlevel House: Common Methods

Now that you understand the signs and causes of an unlevel house, let’s explore the various methods used to fix it. The best method will depend on the severity of the issue, the type of foundation, and the underlying cause. Here are some of the most common techniques for leveling a house:

1. Hydraulic Jacking

Hydraulic jacking is one of the most effective ways to level a house with a pier and beam foundation. This method involves using hydraulic jacks to lift the house off its foundation, returning it to its original position. Once the house is raised, the foundation can be stabilized with additional supports, such as concrete blocks or steel piers.

How Does Hydraulic Jacking Work?

Step 1: A professional will place hydraulic jacks in strategic locations under the house to lift it evenly.
Step 2: The house is slowly lifted to the correct level, with constant monitoring to ensure no additional damage occurs.
Step 3: Once the house is leveled, the foundation is reinforced with concrete or steel piers to prevent future settling.

Hydraulic jacking is a reliable method for houses that have experienced significant settling, as it allows for precise adjustments and stabilization of the foundation.

2. Steel or Helical Piers

Steel or helical piers are used to stabilize homes that have experienced significant foundation movement due to shifting soil. This method is particularly effective in areas like the Texas Gulf Coast, where expansive clay soils can cause foundations to sink or settle unevenly.

How Do Steel or Helical Piers Work?

Step 1: Steel or helical piers are driven deep into the ground, past the unstable soil, until they reach more stable layers of soil or bedrock.
Step 2: The piers are then attached to the foundation and used to lift and stabilize the house.

Because steel and helical piers reach deeper, more stable soil, they provide long-term stability for homes that have been affected by soil movement. This method is often used in homes with slab foundations, where other leveling methods might not be suitable.

3. Concrete Pilings

Concrete pilings are another method commonly used to fix an unlevel house, especially in homes with slab foundations. Concrete pilings are precast concrete columns that are driven deep into the ground to support the weight of the house.

How Do Concrete Pilings Work?

Step 1: Concrete pilings are installed in a grid pattern beneath the house, with each piling driven deep into the ground until it reaches stable soil.
Step 2: Once the pilings are in place, they support the foundation, lifting it back to its original level.

Concrete pilings are durable and provide a long-lasting solution to foundation problems. They’re especially effective in homes that have experienced significant settling or shifting due to soil movement.

4. Slabjacking or Mudjacking

For homes with slab foundations, slabjacking (also known as mudjacking) can be an effective method for leveling the house. This process involves injecting a mixture of cement, sand, and water underneath the foundation to lift it back to its original level.

How Does Slabjacking Work?

Step 1: Small holes are drilled into the slab at strategic points.
Step 2: A grout mixture is injected into the holes, filling the voids beneath the foundation and lifting the slab.
Step 3: The holes are then patched, and the foundation is leveled.

Slabjacking is a less invasive and more affordable option for leveling a house, making it an attractive solution for homes with minor foundation issues. However, it may not be suitable for homes with severe settling or soil movement problems.

5. Underpinning

Underpinning is a method used to strengthen and stabilize the foundation of a house by extending its depth or breadth. This is often done in homes where the foundation has weakened over time or where the soil conditions have changed, causing the house to settle unevenly.

How Does Underpinning Work?

Step 1: The existing foundation is excavated, and new supports are added beneath it to extend the foundation’s depth.
Step 2: These new supports are then used to stabilize and level the house, providing additional strength to the foundation.

Underpinning is a more complex and expensive method but can be highly effective in stabilizing homes with severe foundation problems.

Preventing Future Foundation Problems

Once you’ve leveled your house, it’s important to take steps to prevent future foundation problems. Here are some tips for maintaining a stable foundation:

1. Improve Drainage

One of the most effective ways to prevent foundation issues is to ensure proper drainage around your home. Water pooling around the foundation can cause soil erosion and lead to uneven settling. Installing gutters, downspouts, and French drains can help divert water away from your home, protecting the foundation from water damage.

2. Control Soil Moisture

In areas like the Texas Gulf Coast, where moisture levels can fluctuate dramatically, it’s essential to manage soil moisture. During dry periods, consider watering the soil around your home to prevent it from contracting and causing foundation movement. In wet seasons, ensure that excess water is directed away from your foundation.

3. Schedule Regular Inspections

Regular foundation inspections can help catch small problems before they become big issues. If you notice minor cracks, sloping floors, or sticking doors, it’s worth having a professional take a look to assess the severity of the problem and recommend any necessary repairs.

Conclusion

Fixing an unlevel house is a process that requires careful assessment, the right method, and ongoing maintenance to ensure long-term stability. Whether you’re dealing with soil movement, poor drainage, or natural settling, methods like hydraulic jacking, steel piers, concrete pilings, and slabjacking can all help restore your home’s foundation to its original level.

For homeowners in areas like the Texas Gulf Coast, where soil conditions and moisture can lead to foundation problems, choosing the right method and taking preventive measures can save you from bigger issues down the road. With the right approach, you can ensure your home remains safe, stable, and level for years to come.

FAQs

1. How much does it cost to fix an unlevel house?

The cost of fixing an unlevel house varies depending on the severity of the foundation issues, the method used, and the size of the home. It can range from a few thousand dollars to tens of thousands for more extensive repairs.

2. How long does it take to level a house?

The time required to level a house depends on the method used and the extent of the foundation problems. It can take anywhere from a few days to several weeks.

3. Can I level my house by myself?

Leveling a house is a complex process that requires specialized equipment and expertise. It’s best to leave this job to professionals to ensure the safety and stability of your home.

4. What causes a house to become unlevel?

Houses can become unlevel due to soil movement, poor drainage, natural settling, and improper construction. In areas like the Texas Gulf Coast, soil conditions are a common cause of foundation problems.

5. Is house leveling a permanent solution?

House leveling can provide a long-term solution to foundation problems, but it’s essential to address the underlying causes, such as poor drainage or soil conditions, to prevent future issues.

How To Fix An Unlevel House: Step-by-Step Guide