

Foundation Repair & House Leveling in Sebastian, TX.
Foundation work, done right in Sebastian.
Action House Leveling is based in Mercedes, just minutes from Sebastian. You get same-day inspections, a crew that knows the local soil profile, and reinforced concrete piers engineered for the ground under your slab.
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.