You already know you have a foundation problem. Now you need to know what it's going to cost. This page gives you real numbers for the San Antonio market in 2026 — not ranges pulled from a national average that doesn't account for Bexar County soil conditions, local labor rates, or the fact that most San Antonio slab homes require a specific type of pier installation that isn't cheap.
The short answer: minor issues start around $250. A genuine pier installation for a settling slab runs $8,000–$18,000 for most homes. Major structural repairs can reach $25,000 or more. Below is the full breakdown.
| Repair Type | Cost Range |
|---|---|
| Minor crack repair (cosmetic, non-structural) | $250–$800 |
| Mudjacking (per area, garage/driveway/isolated slab) | $500–$1,500 |
| Polyurethane foam injection (targeted interior) | $2,000–$5,000 |
| Concrete pressed pier installation (per pier) | $800–$2,000 |
| Steel push pier installation (per pier) | $1,000–$3,000 |
| Partial stabilization (4–6 piers, one side of home) | $4,000–$12,000 |
| Full foundation leveling (average SA home, 8–12 piers) | $8,000–$25,000 |
| Major structural repair (significant settlement, multiple zones) | $15,000–$25,000+ |
| Under-slab plumbing repair (if required) | $3,000–$8,000 additional |
| Drainage correction (grading, French drains) | $1,500–$5,000 additional |
These are San Antonio market rates based on current labor and material costs. Your actual quote will depend on the specific scope — but if a quote comes in dramatically below these ranges with no warranty attached, treat that as a warning sign, not a deal.
Understanding what goes into a quote helps you evaluate what you're being told.
This is the biggest cost driver in San Antonio. The more piers required to stabilize your foundation, the higher the cost. A typical 1,800–2,200 square foot slab home in neighborhoods like Stone Oak, Helotes, or Leon Valley often needs 8–12 piers for a complete repair. Smaller homes or repairs addressing only one side of the foundation may need 4–6. Larger homes on particularly unstable soil can require 15 or more.
Each pier represents a fixed cost — the crew, the equipment, the materials, and the time to drive it to depth. Get a per-pier rate in your quote so you can understand the math.
Steel push piers are driven to bedrock or load-bearing strata — in San Antonio, that's often 15–25 feet down, through the expansive clay layer. They're the most reliable long-term solution and carry the best warranties. They're also the most expensive.
Concrete pressed piers are pushed to resistance — not necessarily to bedrock. They're less expensive per unit and widely used in San Antonio. They work well in many situations, but ask your contractor specifically about soil conditions and warranty terms, particularly for homes in areas with very deep clay profiles like parts of Northwest San Antonio.
Concrete slab foundations — the dominant type in post-1950s San Antonio construction — are repaired from the exterior perimeter with piers. Pier-and-beam foundations, more common in older homes in King William, Southtown, Dignowity Hill, and the pre-WWII neighborhoods near downtown, are repaired differently. Pier-and-beam work involves accessing the crawl space, shimming or replacing wooden beam supports, and sometimes replacing deteriorated wood members. This type of repair can be less expensive than a full slab pier installation — or it can be comparable, depending on the condition of the wood.
If the affected area of your foundation is buried under a deck, landscaping, hardscape, or a tight exterior clearance, the work takes longer and costs more. Factor in whether any landscaping, concrete flatwork, or structures will need to be removed and reinstalled — this should be explicitly addressed in your quote.
In some parts of Bexar County, competent load-bearing soil or rock is 15 feet down. In others, it's 30 feet. Deeper piers mean more material and more time. A contractor who has worked extensively in your specific area — whether that's Alamo Heights, Converse, or the Hill Country edge near Helotes — will have a better read on what to expect before they even start digging.
Foundation repair sometimes uncovers related issues that need to be addressed simultaneously:
Under-slab plumbing. Foundation movement can crack sewer lines that run through the soil beneath your slab. If a camera inspection reveals broken lines, those have to be repaired — sometimes before the foundation work, sometimes after. This adds cost but is non-negotiable if the lines are broken.
Drainage correction. If poor drainage around your foundation is contributing to the soil movement, fixing the drainage is part of a durable repair. French drains, regrading, or downspout extensions may be recommended alongside the structural work.
The gold standard for San Antonio's deep clay soil. Driven hydraulically to bedrock or load-bearing stratum. The existing foundation is lifted and locked. Long-term durability is high. Warranties of 25 years to lifetime are common from reputable contractors. Best for significant settlement or homes where long-term stability is the priority.
Best for: Homes with significant settlement, homeowners who want a permanent solution, anyone who may sell the house and wants a transferable warranty.
Driven to resistance rather than bedrock. Less expensive, widely used across San Antonio. A reasonable option for moderate settlement in areas where soil conditions are more predictable. Ask for a contractor's failure rate and warranty terms before choosing this option.
Best for: Moderate settlement, budget-conscious repairs, areas with shallower load-bearing soil.
A cement-sand slurry pumped under a sunken concrete section to lift it. Works for isolated slabs — a sunken garage floor, a driveway section, a front walkway. Not appropriate for foundation structural repair.
Best for: Driveways, garage slabs, sidewalks, isolated patio sections.
Expanding foam pumped through small drill holes under the slab. Fast, lightweight, less invasive than mudjacking. Good for targeted void-filling and lifting smaller sections of interior slab. Increasingly used in San Antonio for interior slab settling where traditional pier installation isn't practical.
Best for: Interior slab sections with minor to moderate settling, targeted void-filling.
Most reputable foundation repair companies in San Antonio offer financing. This market — where jobs regularly run $8,000–$20,000 — has made financing standard, not exceptional. Common options include:
In-house financing through the contractor. Many larger San Antonio foundation companies have relationships with financing partners (GreenSky, Synchrony, or similar) that offer 12–24 months same-as-cash or low-APR installment plans. Apply at time of estimate.
Home equity loans or HELOCs. If you have equity in your home, a HELOC is often the lowest-cost way to finance foundation repair. Interest may be tax-deductible (consult your tax advisor). Rates in 2026 are variable — shop your bank and credit union.
Personal loans. Available through banks, credit unions, and online lenders. Rates vary widely by credit. A useful backup if you don't have home equity available.
FHA 203(k) rehabilitation loans. If you're purchasing a home with foundation issues or refinancing, an FHA 203(k) can roll repair costs into the mortgage. More paperwork, but potentially the lowest all-in cost if you're already in a transaction.
Don't let financing uncertainty delay getting an estimate. Know the scope and cost first, then figure out how to pay for it.
This is standard practice in the San Antonio market: legitimate foundation repair companies provide free inspections and free written estimates. The inspection involves a professional visiting your home, taking elevation readings, documenting damage, and providing a scope and price. You owe nothing unless you choose to move forward.
If a company wants to charge you for an initial assessment before you've agreed to any work, that's not how this industry operates here. Move on to the next one.
You now know what foundation repair costs in San Antonio and what drives those numbers. The next step is knowing exactly what your situation requires — and the only way to get that is an on-site evaluation.
Request a free estimate at sanantoniofoundations.com/estimate. A qualified inspector will assess your foundation, take measurements, document the damage, and give you a written scope and price with no obligation. Most estimates are completed within 48 hours of contact.
Ready for a free foundation inspection? Submit your request at sanantoniofoundations.com/estimate and we'll connect you with a qualified local specialist — no pressure, no obligation.