Foundation Settlement Repair in San Marcos, TX.
Foundation Settlement Repair for San Marcos homeowners — engineer-backed, driven to load-bearing strata, and warrantied for life. Blackland clay east of I-35, right over the Balcones Fault — highly active heave.
Looking for foundation settlement repair in San Marcos? Here’s why local slabs move — and exactly how we fix them.
Common foundation problems in San Marcos
Across San Marcos, the calls we get most involve a visibly low corner, diagonal cracks above openings, and a gap opening at the ceiling. They almost always trace back to the ground beneath the slab.
- Doors and windows that stick, drag, or won’t latch
- Stair-step cracks in exterior brick or block
- Sloping, bouncy, or visibly uneven floors
- Drywall cracks fanning from door and window corners
- Gaps opening between walls, trim, and the ceiling
- Cracks in the slab or at the garage floor
Why slab foundations move in San Marcos
Blackland clay east of I-35, right over the Balcones Fault — highly active heave. When that ground cycles between wet and dry, a slab cast on it moves too — and surface patches move right along with it.
Why GroundLock uses steel piers
Settlement is the slow sinking of part of the slab as the soil beneath it shrinks. We measure the dropped zone, drive steel piers to stable strata beneath it, and lift it back toward level.
Signs you may need foundation settlement repair
In San Marcos, watch for a visibly low corner, diagonal cracks above openings, and a gap opening at the ceiling. If you’re seeing them, a free elevation survey will tell you how far the slab has actually moved.
Our inspection & elevation survey
Every San Marcos project starts with a free, no-obligation elevation survey. We map your slab to ±⅛ inch, identify the high and low points, and walk you through a written, engineer-backed report.
The foundation settlement repair process
Free elevation survey
We map your San Marcos slab to ±⅛ in and show the movement in writing.
Engineered pier plan
Pier count and spacing set to a structural spec for your home.
Drive, lift & lock
Steel piers driven to refusal; slab raised and load transferred onto steel.
Re-survey & warranty
Final elevation documented and warrantied for life before we leave.
Drainage, grading & moisture control
Because water drives the soil movement under San Marcos slabs, lasting results often pair the repair with drainage correction and erosion control — recommended only where it protects your foundation.
Nearby areas served
We provide foundation settlement repair across San Marcos and the surrounding Hays County communities.
Foundation Settlement Repair in nearby Hays County cities
Warranty & financing
- Lifetime transferable warranty on steel-pier stabilization — it passes to the next owner.
- Financing from $0 down on approved credit.
- Engineer-backed documentation lenders, buyers, and insurers accept.
San Marcos foundation settlement repair FAQs
How much does foundation settlement repair cost in San Marcos?
Do you provide foundation settlement repair in my San Marcos neighborhood?
Why steel piers for San Marcos foundations?
Book your free
foundation inspection.
Tell us where you are and what you’re seeing. A GroundLock structural advisor confirms within one business hour.
Get your free foundation inspection.
A licensed inspector measures your slab elevation to ±⅛ in and gives you a written, engineer-backed plan — with zero pressure.