House Jacks2026-10-28T14:51:40-05:00

Support Sagging Floors with House Jacks in Tampa Bay, Orlando, Miami and Largo

Sagging, uneven or bouncy floors are usually a sign that the support system beneath your home needs attention. As crawl space support posts settle and floor framing weakens over time, the right solution is more than simply lifting the floor; it requires restoring long-term structural support.

House jacks, sometimes called crawl space jacks or floor support jacks, are engineered to strengthen and stabilize your home's floor support system. At LRE Foundation Repair, every repair begins with a thorough structural inspection to pinpoint what's causing the problem. Then we'll recommend a customized floor stabilization solution designed to support weakened floor joists, reinforce your crawl space and help protect your home for years to come.

What Are House Jacks?

House jacks are adjustable steel support posts that stabilize sagging floors by strengthening weakened floor joists and beams from beneath your home. Installed in a crawl space or basement, they transfer structural loads down to a stable foundation beneath your home.

Unlike temporary jack posts or wood supports, engineered house jacks are meant to be a long-term structural repair. They help cut down on floor movement, improve stability and, in many cases, lift sagging floors closer to their original position.

No two homes are the same, so the right repair starts with a thorough inspection. We'll inspect your floor framing, crawl space conditions and structural supports to determine whether house jacks are the best solution for your home.

What Causes Crawl Space Structural Damage?

Crawl space structural damage often develops slowly as moisture, shifting soils and aging materials weaken the floor support system beneath your home. Excess humidity, poor drainage, freeze-thaw cycles and older vented crawl spaces can all lead to wood deterioration, settling support posts and unstable soil. Over time, these conditions can cause floor joists and beams to lose support, resulting in sagging, uneven or bouncy floors.

Our Crawl Space Support Solution

There’s always an underlying cause behind a sagging floor, which is why every repair begins with a thorough structural inspection. If weakened floor supports are behind the problem, we’ll recommend a permanent solution designed to stabilize your home’s floor system for the long term.

  • For stabilizing sagging floors and crawl spaces

    SmartJack® House Jack System

    The SmartJack® House Jack System is LRE Foundation Repair‘s engineered answer to sagging floors and weakened crawl space support systems. Adjustable galvanized steel support posts are installed on a stable base to provide permanent support beneath floor joists and beams, helping reduce floor movement while improving floor levelness.

    Every home is different, so every SmartJack® installation begins with a comprehensive structural inspection. We’ll evaluate your crawl space, floor framing and support system to figure out the right placement and number of supports needed for lasting performance. The result is a repair designed for your home’s specific needs, not a one-size-fits-all fix.

    • Stabilizes sagging and uneven floors permanently
    • Reinforces weakened joists and support beams
    • Adjustable design helps improve how level your floors sit
    • Heavy-duty galvanized steel resists rust and corrosion
    • Installed on a stable, engineered base
    • Designed around your home’s structural needs
    • Backed by LRE Foundation Repair‘s written warranty
How It Works

The SmartJack® Installation Process

Here’s how we evaluate, design and install a customized SmartJack® support system to stabilize sagging floors and strengthen your home’s crawl space.

Symptoms

Warning Signs Your Home May Need a SmartJack® System

Sagging floors rarely get better on their own. When you notice changes in how your floors feel or other signs of structural movement, your crawl space support system may need attention. A professional inspection can pinpoint the underlying cause and determine whether SmartJack® is the right solution.

Common Signs Include:

  • Floors that sag or slope
  • Bouncy or springy floors
  • Floors that feel soft or unstable
  • Squeaky floors that are becoming more noticeable
  • Gaps between the floor and baseboards
  • Leaning, rotting or failing support posts in the crawl space
Benefits

Why homeowners choose LRE Foundation Repair for foundation piers

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What To Expect

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We’ll walk you through what we’re seeing in easy-to-understand language so you know the root cause of the issue, not just the symptoms.

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Before & after photos

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    The LRE team installed a 4″ channel drain within the pool deck’s concrete to collect rainwater and divert it away from the home through a subsurface drainage system.

  • Crawl space repair in Dunedin, FL

    To repair sagging floor issues, LRE used SmartJacks, made from galvanized steel, and our Crawlspace Encapsulation System to control moisture, air flow, and stabilize the structure.

Proudly Serving Florida

LRE Foundation Repair is the local expert for Foundation repair and concrete repair and more. We proudly service Orlando and all of Florida.

Frequently Asked Questions

How much do house jacks cost? 2026-10-02T09:45:48-05:00

The cost of installing house jacks varies based on the size of your home, the number of supports needed, crawl space accessibility and existing structural conditions. Because every repair is customized, there’s no one-size-fits-all price. A free professional inspection allows us to provide an accurate recommendation and estimate for your home. 

How do I know if my home needs house jacks or another repair solution? 2026-10-02T09:45:21-05:00

A professional structural inspection is the only way to know. Sagging or uneven floors can result from several issues, including weakened floor framing, failing support posts, foundation settlement or moisture damage. We’ll pinpoint the root cause and recommend the repair that’s best suited for your home, not simply install a product. 

Will house jacks continue to be adjusted over time? 2026-10-02T09:44:55-05:00

SmartJack® support posts are adjustable, allowing for precise installation and, if needed, minor future adjustments. Depending on your home’s condition and repair plan, we may recommend additional adjustments as the structure settles and responds to the new support system. 

How long does house jack installation take? 2026-10-02T09:44:27-05:00

Most house jack installations can be completed in one to two days, though larger or more complex projects may take longer. The timeline depends on the size of the crawl space, accessibility, the number of supports required and whether additional structural repairs are needed. Your inspector will walk you through what to expect before work begins. 

Can house jacks level uneven floors? 2026-10-02T09:43:59-05:00

In most cases, yes. House jacks can help lift and stabilize sagging floors, improving floor levelness and reducing bounce. However, every home is different, and the amount of correction depends on factors such as the condition of the framing, how long the floors have been sagging and the home’s overall structural condition. 

Are house jacks a permanent solution? 2026-10-02T09:43:26-05:00

Yes, they are. Professionally installed house jacks serve as a long-term structural repair, not a temporary fix. When installed on a properly prepared base and paired with the appropriate repair plan, they provide lasting support for weakened floor systems while addressing the underlying cause of the problem. 

How do house jacks fix sagging floors? 2026-10-02T09:42:40-05:00

House jacks stabilize sagging floors by shifting the weight of your home’s floor system to a stable, engineered base beneath the crawl space. This added support reinforces weakened joists and beams, helping reduce floor movement and, in many cases, improving floor levelness. Each system is customized to your home’s specific structural needs. 

What are house jacks? 2026-10-02T09:41:53-05:00

House jacks are adjustable steel support posts designed to reinforce weakened floor joists and beams from beneath your home. Installed in a crawl space or basement, they add permanent structural support where existing supports have settled or deteriorated. Professionally engineered house jacks help stabilize sagging floors and strengthen your home’s floor system for long-term performance. 

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