

Foundation Repair & House Leveling in Sebastian, TX.
Foundation repair in Sebastian.
Between Lyford and Raymondville, Sebastian, TX sits on the same slow-draining Raymondville clay loam terrace that runs through northern Willacy County. Action House Leveling levels and repairs homes from Sebastian Road and the Highway 77 corridor on reinforced concrete piers that reach below the moisture-heavy active layer. Free inspection, lifetime transferable warranty, dispatched from Mercedes.
Services in Sebastian
Why Sebastian homeowners call us
- Local Mercedes-based crew, minutes from Sebastian
- 20+ years working RGV soils
- Lifetime transferable concrete pier warranty
- Free, no-pressure foundation inspection
- Family owned and operated
Where we work in Sebastian.
Sebastian neighborhoods we serve
- Downtown Sebastian / Sebastian Rd
- Hwy 77 corridor
- North Sebastian toward Lyford
- South Sebastian toward FM 506
- Rural acreage east and west of town
ZIP codes covered
The soil under Sebastian.
Sebastian sits between Lyford and Raymondville on the same slow-draining Raymondville clay loam terrace that defines northern Willacy County.
Soils are Raymondville clay loam with pockets of Harlingen clay in low spots, PI 35–50, high shrink-swell.
Decades of agricultural irrigation have elevated baseline moisture content, and the flat topography means rain events linger for weeks.
Sebastian's small footprint sits on a slight rise — runoff drains outward in all directions, which creates a recurring saturate-then-dry pattern at the slab perimeter.
Concrete piers driven 12–16 feet are the engineered solution.
Common foundation issues we see in Sebastian.
Perimeter saturate-and-dry cycling
Sebastian's topography sheds runoff in all directions, repeatedly wetting and drying slab perimeters.
Agricultural-edge differential
Slabs at the field margins absorb irrigation runoff asymmetrically — uneven moisture, uneven settlement.
1950s–70s ranch slabs
Shallow pours with minimal steel — corner cracks by year 30 are the norm.
Pier & beam sill rot
Older raised homes have decades of sill and block decay from ground moisture.
Questions from Sebastian homeowners.
Do you really come out to Sebastian?
Yes — we work Willacy County weekly out of our Mercedes yard.
Which Sebastian ZIP do you cover?
All of 78594 — downtown, Hwy 77, FM 506 corridor, and the rural acreage.
Is the inspection free?
Yes. Elevation gear, walk-through, written report — no charge.
Do you handle pier & beam in Sebastian?
Yes. Sill replacement, beam sistering, and concrete pad resets.
Concrete driveways & repair in Sebastian.
Beyond foundation work, we pour and restore residential concrete across Sebastian — new driveways, walkways, and patio slabs, plus mudjacking and crack repair for sunken concrete. Because cracked concrete is often the first sign of movement underneath, the same crews that level your home can repair the slabs around it.
Concrete driveways & repairSchedule a Sebastian inspection.
Explore our other services.
One crew for the whole job — foundation repair, house leveling, and residential concrete across the Rio Grande Valley.
Foundation Repair RGV
Reinforced concrete piers that stabilize slab and pier & beam homes on the Rio Grande Valley's expansive clay.
Learn moreSlab Foundation Repair
Lift and stabilize cracked, settling concrete slab foundations across the RGV.
Learn morePier & Beam Foundation Repair
Shimming, beam replacement, and new piers for raised pier & beam foundations.
Learn moreHouse Leveling RGV
Precision releveling that brings sagging, uneven floors back to true.
Learn morePier & Beam House Leveling
Re-level raised homes and stop bouncing, sloping pier & beam floors.
Learn moreMobile & Manufactured Home Leveling
Re-level and re-pier mobile and manufactured homes across the Valley.
Learn moreWood to Concrete Conversion
Replace failing wood subfloors with engineered concrete slabs — ending rot, pests, and bounce.
Learn moreConcrete Contractors RGV
New driveways and walkways, plus repair or replacement of cracked and sunken residential concrete.
Learn moreRoom Addition Concrete Footings
Engineered footings and slab for room additions, poured and ready for your contractor.
Learn more