
Lehi Foundation Pros
Crawl Space Repair in Lehi, UT
Crawl space support jacks and vapor barriers in Lehi fix sagging floors and damp crawl spaces, with free estimates.
- 15+ Years local experience
- 500+ Projects completed
- Licensed & Insured
Serving Lehi and nearby communities.
Bouncy floors and a musty smell usually trace back to the crawl space, not the floor itself. Sagging support posts and uncontrolled moisture under the house track with the same soil movement showing up elsewhere in newer Lehi subdivisions, where fill soil is still settling under the slab and perimeter footing.
Lehi Foundation Pros inspects both the structural support and the moisture source before recommending a fix, since a sagging beam and a damp crawl space often need different corrections even though the symptoms overlap.
What's included
What's Included with Crawl Space Repair
- Typically included — crawl space inspection, support post evaluation, adjustable jack installation for sagging areas, vapor barrier encapsulation.
- Optional — dehumidifier unit for ongoing humidity control, insulation panel upgrades.
- Customer prep — clear access to the crawl space entry point before the crew arrives.
Want a clearer scope?
Get a Free EstimateHow it works
How Our Crawl Space Repair Process Works
Step 1Crawl Space Inspection
Area is assessed for moisture, sagging, and structural issues.
Step 2Support Evaluation
Existing support posts and beams are checked for damage or deflection.
Step 3Moisture Control Planning
A plan is created to address humidity and water intrusion sources.
Step 4Support Installation
Adjustable jacks or piers are installed to correct sagging areas.
Step 5Encapsulation
A vapor barrier is installed to seal the crawl space from moisture.
Step 6Ventilation Check
Airflow and humidity levels are verified after completion of work.
Materials
Materials and Methods for Crawl Space Repair

Adjustable Steel Jacks
Support sagging floor joists and beams from beneath, sized for the soil conditions under Lehi's newer builds.

Vapor Barrier Liner
Covers the ground to block moisture from rising into the space during wet seasons.

Dehumidifier Unit
Maintains safe humidity levels within the crawl space year-round.

Insulation Panels
Help regulate temperature and reduce energy loss through the crawl space floor.

Support Beams
Replace or reinforce weakened structural beams found during inspection.

Sealant Tape
Secures vapor barrier seams for a continuous moisture seal across the whole space.
Questions on materials?
Get a Free EstimateCost
What Does a Crawl Space Repair Cost in Lehi?
Cost depends on the number of support posts needed, crawl space size, and whether moisture control is bundled in. Get a free estimate after inspection for a number specific to your crawl space.
| Project type | Typical range | What’s included |
|---|---|---|
| Spot support correction | $800–$2,500, | one or two adjustable jacks for localized sagging. |
| Full support system | $2,500–$6,000, | multiple jacks across the crawl space to correct widespread sagging. |
| Vapor barrier encapsulation | $1,500–$4,500, | full ground liner and seam sealing. |
| Combined support and encapsulation | $4,000–$9,000, | structural correction plus moisture control in one project. |
These are typical local ballparks — final cost depends on scope, materials, and site conditions. A free estimate gives you an accurate, itemized number for your home.
Want a number for your home?
Get a Free EstimateDIY vs pro
DIY vs Hiring a Pro for Crawl Space Repair
| DIY | Hire a pro |
|---|---|
| Laying a basic plastic sheet over dirt as a temporary moisture reducer. | Installing adjustable support jacks, since load-bearing correction needs the right post spacing and footing. |
| Checking for visible standing water or pest entry points before calling. | Full encapsulation, where seam sealing and drainage integration matter for long-term performance. |
Not sure DIY vs pro?
Get a Free EstimateWhen to call
When to Call for Crawl Space Repair
Call Lehi Foundation Pros for a free crawl space inspection.
- Floors that feel bouncy or soft when you walk across them.
- A musty smell that persists no matter how much you clean upstairs.
- Visible sagging in floor joists or beams when you look under the house.
Seeing warning signs?
Get a Free EstimateBefore & after
Before and After Crawl Space Repair

Before 
After
FAQs
Crawl Space Repair FAQs
Is it normal for a brand new Lehi house to settle this fast?
Somewhat. Fast-built subdivisions sit on fill soil that's still compacting for the first several years, so sagging support posts can show up even in newer homes.
How long does crawl space repair take?
Support correction alone usually takes a day. Adding full encapsulation can extend the job to a day or two depending on crawl space size.
Do I need a permit for crawl space repair?
Structural support work, like installing jacks under sagging beams, usually needs a permit. Standalone vapor barrier installation usually doesn't.
Can I install support jacks myself?
No. Sagging floor joists are a load-bearing issue, and incorrect jack placement can cause uneven settling elsewhere.
What's included in crawl space encapsulation?
A full vapor barrier liner across the ground, sealed seams, and often a dehumidifier to maintain safe humidity levels going forward.
How do I prepare for a crawl space inspection?
Clear a path to the crawl space access point and note any areas where you've noticed sagging, dampness, or odors.
Next step
Get a Crawl Space Repair Estimate in Lehi
Call Lehi Foundation Pros at (385) 336-5133 or request a free estimate below.
More services
Other Foundation Repair services

Foundation Repair
Foundation repair in Lehi: crack injection, piering, and wall correction with written estimates and free inspections.

Piering and Underpinning
Steel push piers and helical piers stabilize settling Lehi foundations, with free written estimates and permit handling.

Wall Stabilization
Basement wall stabilization in Lehi using steel anchors and carbon fiber straps to stop bowing from hydrostatic pressure.
Ask about Crawl Space Repair
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