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Structural Support Jacks2026-10-26T15:45:43-05:00

Crawl Space Support Jacks in Tampa Bay, Orlando, Miami and Largo

Permanently stabilize sagging, bouncy floors using engineered steel support jacks that reinforce weakened beams and floor joists.

What Are Structural Support Jacks?

Crawl space support jacks are engineered, adjustable steel posts installed beneath a home to shore up weakened beams and floor joists. They carry loads down to stable footings below, creating a reliable support system for sagging or bouncy floors.

Unlike the hardware-store jack posts intended for temporary or limited applications, LRE Foundation Repair uses structural support jacks engineered for permanent crawl space repair.

Symptoms

Signs It’s Time for Crawl Space Support Jacks

Problems with the beams, joists or columns in your crawl space can show up throughout the rooms above. You may first notice changes in how your floors feel or how your doors and windows operate.

Signs your home may need additional crawl space support include:

These symptoms don’t automatically mean support jacks are the right repair. An inspection can identify what’s causing the movement and whether the existing support system needs to be reinforced.

Our Crawl Space Support Options in Tampa Bay, Orlando, Miami and Largo

  • Adjustable steel support jacks for sagging, sloping and bouncy floors

    SmartJack® Crawl Space Support Jacks

    The SmartJack® system offers permanent support for under-supported or weakened crawl space beams and floor joists. Each adjustable steel post is set on a footing designed to provide a stable base and properly transfer load.

    Once installed, SmartJack posts stabilize the floor system and, where conditions allow, can help lift sagging areas toward a more level position.

    • Permanent support for weakened beams and joists
    • Adjustable to accommodate changing crawl space conditions
    • Can bring floors toward a more level position
    • Zinc-plated and galvanized steel components stand up to rust
    • Engineered to carry substantial residential loads
    • Fast, year-round installation with minimal disruption
    • Covered by LRE Foundation Repair‘s written warranty

  • Repairs Weakened or Damaged Beams and Joists

    Wood Repair and Replacement

    When crawl space beams or floor joists are damaged by rot, mold or other deterioration, adding support alone may not fix the problem. Damaged structural wood may have to be reinforced or replaced to restore its strength.

    Wood repair can be combined with SmartJack® support and moisture-control solutions when multiple issues are affecting the floor system.

    • Reinforces or swaps out damaged beams and floor joists
    • Restores strength to weakened structural framing
    • Can involve sistering new wood alongside existing framing
    • Works with SmartJack support when more stabilization is needed
    • Pairs with encapsulation when moisture contributes to damage
How It Works

How LRE Foundation Repair Installs Your Structural Support Jacks

Step 1

Inspect Your Floor System

We start with a free home inspection to evaluate the beams, joists and existing supports and determine where additional support is needed.

Step 2

Build the Footing

At each support location, the crawl space floor is excavated and an engineered footing is installed to provide a stable base for the system.

Step 3

Install the Steel Supports

The steel base, adjustable column and top assembly go in beneath the beam to provide support where it’s needed. 

Step 4

Stabilize the Floors Above

Each jack is carefully adjusted to stabilize the floor system and, when conditions allow, help lift sagging areas toward a more level position.

Step 5

Verify the Installation

The completed system is checked to confirm each support is properly positioned and adjusted. 

Consider Supplemental Moisture Solutions

When moisture is contributing to structural damage, LRE Foundation Repair might also recommend crawl space encapsulation along with other moisture-control solutions to help protect the repaired area.

What Do Crawl Space Support Jacks Cost?

The cost of crawl space support jacks depends on your home and how extensive the structural problem is. Factors include how many jacks are needed, crawl space access, the condition of the floor system and whether other repairs are required.

A professional inspection is the best way to identify the right repair and get an accurate estimate. LRE Foundation Repair offers financing options and a written warranty for added peace of mind.

Crawl Space Vapor Barrier
Benefits

Crawl Space Support Jack Installation You Can Count On in Tampa Bay, Orlando, Miami and Largo

Structural support isn't a one-size-fits-all job. LRE Foundation Repair evaluates your floor system, identifies where support has been compromised and determines the correct placement and number of support jacks for your home.

Schedule a free crawl space inspection in Tampa Bay, Orlando, Miami and Largo to learn what's causing your sagging or bouncy floors and get a written estimate for the recommended repair.

What To Expect

Ready to get started?

Schedule a free estimate to start your repair journey with LRE.

Schedule your inspection

Fill out our form or give us a call to book your inspection. Share what you’ve noticed so we can send the right expert to your home.

Full home
inspection

An expert will inspect the problem area and surrounding conditions, including soil movement, drainage, structural integrity, and any related concerns.

Clear explanation
of findings

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.

Review recommendations

If repairs are needed, we’ll outline your options, pricing, and timeline so you can make the best decision for your home.

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Customer Information

Don't just take our word for it

See what our customers have to say about our work.

When David from High Springs noticed the floors of his historic home starting to sag, he knew it was time to call LRE. 🏠 Our team at LRE Foundation Repair installed the SmartJack System — a durable, adjustable support solution designed to lift, level, and permanently stabilize crawl space floor joists.

Here’s why homeowners trust LRE’s SmartJack system: ✅ Galvanized steel supports that resist corrosion and won’t settle over time ✅ Restores uneven floors to their proper level ✅ Provides permanent stabilization for long-term protection Now, David’s home is stronger, safer, and ready to stand the test of time. Watch to see how LRE helped preserve the integrity of his historic home — and hear what David had to say about his experience!

David V. | High Springs, FL

Norbert’s driveway, walkway, and front porch in Gainesville, FL had settled over time, creating uneven surfaces and serious tripping hazards that had even caused previous injuries. After contacting LRE Foundation Repair, our team lifted and leveled the slabs with PolyLevel and sealed the cracks with NexusPro for long-lasting protection. Norbert was very pleased with the results and our team’s professionalism.

We’re grateful he shared his experience and helped other homeowners learn about reliable, long-term concrete repair solutions

Norbert M. | Gainesville, FL

When Toby bought his new home in Beverly Hills, Florida, he noticed water pooling along the side of his driveway and in front of his garage, caused by the slope directing water toward the house. Our team at LRE designed and installed a custom exterior drainage system to fix the problem for good. We added an enhanced channel drain in front of the garage, connected it to an underground drainage pipe, and tied in the home’s downspouts to safely redirect water away from the foundation.

Now, Toby’s property stays dry and protected — and he couldn’t be happier with the results!

Toby A. | Beverly Hills, FL

Scott and Carrie from Belleview were preparing to sell their home, but noticed that the cracks in their concrete pool deck were discouraging potential buyers. That’s when they reached out to us at LRE for help.

After our Customer Care team scheduled an appointment with one of our expert Design Specialists, we inspected the pool deck and developed a repair plan using our Two-Part Concrete Protection System — combining PolyLevel to lift and level the slabs, and NexusPro to seal the cracks and prevent future damage.

Scott and Carrie were thrilled with the transformation and the professionalism of our team — and they’re excited to share their wonderful experience! 🎥 Watch their story and see how LRE helped restore their pool deck and peace of mind!

Scott & Carrie D. | Belleview, FL

Christine and Scott in Leesburg, FL, noticed significant settlement inside and outside their home, with large cracks in their walls and tile flooring. Seeking a permanent solution, they turned to LRE Foundation Repair. Our team installed helical piers, interior slab piers, and PolyLevel to fully stabilize their home. Now, they have peace of mind knowing their home’s foundation is finally permanently secure.

Christine & Scott R. | Leesburg, FL

After noticing exterior wall cracks and doors that wouldn’t close properly, Mary knew her home needed help. Previous repairs had failed, leaving her without a lasting solution or a company to stand behind the work. In this testimonial, Mary shares how LRE Foundation Repair permanently stabilized her home and restored her peace of mind with proven solutions, lifetime transferable warranties, and double-backed warranty protection.

Mary Anne S. | Brooksville, FL

When Frank in Spring Hill, FL, noticed cracks in his walls, he turned to LRE Foundation Repair. Our Design Specialist confirmed foundation settlement and designed a plan using helical piers and a new exterior drainage system to stabilize the home and redirect water. With the repairs complete, Frank was thrilled with the results. Watch the video to see how LRE restored his home and peace of mind.

Frank N. | Spring Hill, FL

Patrick from New Port Richey noticed water entering through his home’s slab foundation during last year’s hurricanes and contacted LRE Foundation Repair for help. Our team installed a custom exterior drainage system, including a French drain to collect and redirect rainwater to a relief drain away from the home. We also connected his downspouts directly into the subsurface system to stop water from pooling near the foundation. The result? A dry, protected home — and one very happy homeowner.

🙌 Watch as Patrick shares his experience and see how LRE Foundation Repair helped protect his home from future flooding! 🌧️🏠

Patrick G. | New Port Richey, FL

When Terry purchased his new home in Tarpon Springs, his home inspector discovered a serious issue — the floor joists were being supported by makeshift car jacks! 😬 Looking for a long-term solution, Terry reached out to LRE Foundation Repair. Our team installed the SmartJack® System, providing strong, durable, and permanent support for the home’s floors.

Terry was so impressed with the results that he shared his incredible experience with us! 🙌 🎥 Watch his story to see how we helped restore lasting stability and peace of mind.

Terry C. | Tarpon Springs, FL

When Carin and Jon from Tampa, Florida, noticed buckling in the wood floors of their 1950s historic home, they suspected something was wrong beneath the surface. That’s when they called us at LRE Foundation Repair for a complimentary crawl space inspection. In this customer testimonial, hear directly from Carin and Jon as they share their experience—from the first inspection to the final results. Our expert Design Specialist identified major moisture issues in their crawl space, and our team got to work installing the CleanSpace™ Crawl Space Encapsulation System to create a dry, healthy environment under their home. Watch their story to see how we helped protect their home for years to come!

Carin & Jon B. | Tampa, FL

Before & after photos

Check out before and after photos from some of our completed projects.

  • Concrete driveway repair in San Antonio, FL

    The LRE team utilized our PolyLevel Solution to not only bring the concrete slabs back to an even, safe level but also fill the void underneath and permanently stabilize the driveway.

  • Channel drain solution in Seminole, FL

    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.

View All Before & Afters

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

Are hardware-store jack posts the same as professionally installed support jacks?2026-10-02T15:22:56-05:00

No. Hardware-store jack posts aren’t necessarily designed or rated as permanent structural repairs. Professional crawl space support systems use engineered components, proper footings and planned placement to support the loads above. A structural repair needs to be selected and installed based on the home’s floor system rather than simply placing adjustable posts beneath areas that appear to sag.

How long do structural support jacks last?2026-10-02T15:22:09-05:00

Professionally installed structural support jacks are meant to be a long-term solution. How long they last depends on the system, materials, installation and crawl space conditions. Systems made with corrosion-resistant steel are specifically designed for the below-home environment. Ask LRE Foundation Repair about the warranty provided with your support system and any recommended inspections or adjustments over time.

Do crawl space support jacks need a concrete footing?2026-10-02T15:21:08-05:00

Support jacks need a stable base capable of transferring the load from the floor system to the ground below. Depending on the system and site conditions, this may involve concrete or other approved footing. Proper footing design and installation matter, because placing a support post directly on inadequate soil or an unsuitable surface may not provide reliable long-term support.

How much do crawl space support jacks cost in Tampa Bay, Orlando, Miami and Largo?2026-10-02T15:19:44-05:00

Crawl space support jack costs vary with the number of jacks needed, crawl space access, installation requirements and the condition of the existing beams and floor joists. Extra wood repair or moisture-control work can also affect the total. LRE Foundation Repair provides free inspections and written estimates, so you know the recommended repair and its cost before work begins. 

How many support jacks does my crawl space need?2026-10-02T15:17:30-05:00

There is no set number of support jacks for every crawl space. The number and placement depend on the size and layout of the floor system, beam spans, loads, existing supports and the areas that need stabilization. A professional inspection can determine where additional support is required and how many jacks are appropriate for your home. 

Can support jacks lift a sagging floor back to level?2026-10-02T15:16:24-05:00

Yes. Adjustable support jacks help lift sagging floors toward a more level position while stabilizing the floor system. How much lift can be achieved depends on the condition of the framing, how long the floor has been sagging and other conditions specific to the home. 

How do you support a floor joist in a crawl space? 2026-10-02T15:15:13-05:00

The right repair depends on why the floor joist is sagging or inadequately supported. A professional might reinforce damaged joists, add support beneath a beam or install adjustable steel support jacks to transfer loads to stable footings below. The floor system should be assessed first to determine whether the joists, beams, existing columns or a combination of components need repair.

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