No single number covers foundation work. But after reading this, you will know exactly which price tier your problem lives in.
First: Read Your Cracks Before You Read Any Quote
Not every crack means your house is sinking. Here is how contractors and engineers classify them:
- Hairline vertical cracks (under 1/16 inch): Almost always normal concrete shrinkage. Monitor, usually no repair needed. If they leak water, a $300 to $800 epoxy or polyurethane injection seals them.
- Diagonal cracks: Can indicate minor differential settlement. Worth a professional look if they are growing or wider than 1/8 inch.
- Stair-step cracks in brick or block: Classic settlement pattern. The wider the crack and the more steps it takes, the more serious the movement.
- Horizontal cracks in basement walls: The scary ones. Usually caused by soil pressure pushing the wall inward. These need structural repair, not caulk.
- Cracks wider than 1/4 inch, or growing: Active movement. Get an evaluation promptly, regardless of direction.
The pencil test: mark both ends of a crack with dated pencil marks. Check monthly. A crack that does not grow over a year is stable. A growing crack is a project.
Repair Methods and What Each Costs in 2026
Crack injection: $300 to $800 per crack
Epoxy or expanding polyurethane injected into the crack, sealing it against water and bonding the concrete. The right fix for non-structural cracks and minor leaks. Takes an hour or two. Anyone quoting piers for a hairline shrinkage crack is upselling.
Carbon fiber straps: $500 to $1,200 per strap
High-strength carbon fiber sheets epoxied to basement walls to stop bowing. Effective for walls deflecting inward from soil pressure. Less invasive than wall anchors, no exterior excavation. Typically 3 to 6 straps per wall.
Wall anchors: $600 to $1,000 per anchor
Steel plates inside connected to exterior anchors, gradually straightening bowed walls over time. Requires exterior excavation at each anchor point. Good for serious inward movement where carbon fiber is not enough.
Steel push piers: $1,000 to $3,000 per pier
Hydraulically driven to bedrock or load-bearing soil to stabilize and sometimes lift settled sections. The standard fix for true settlement. Most residential jobs need 8 to 15 piers, which is how you get to $6,000 to $15,000 totals.
Helical piers: $1,500 to $3,500 per pier
Screw-like piers twisted into the ground, better for lighter structures and soils where push piers cannot reach bearing depth. Common for porches, additions, and garages.
Mudjacking / slab jacking: $3 to $6 per square foot
Grout pumped under settled concrete slabs to lift them. Typical driveway or patio section runs $500 to $1,500. Fixes the slab, not the house foundation, and will not help a settling perimeter footing.
Drainage correction: $1,500 to $5,000
French drains, regrading, and gutter extensions. Not technically foundation repair, but poor drainage causes a huge share of foundation problems. Fixing water first is often smarter than piers.
What Actually Drives the Price
- Number of piers: The single biggest cost factor. Each pier is $1,000 to $3,500 installed, so a 12-pier job costs double a 6-pier job. Pier count should come from a lift plan, not a salesman's gut.
- Access: Interior piers cost more than exterior ones. Finished basements, tight crawlspaces, and landscaping all add labor.
- Soil conditions: Expansive clay soils (Texas, Colorado, much of the Southeast) cause the worst and most expensive problems. Depth to bedrock determines pier type and price.
- Engineering report ($350-$800): An independent structural engineer's assessment. Worth every penny before approving a five-figure job. Some companies credit it toward the work.
- Permits ($200-$600): Structural foundation work requires permits in most jurisdictions. Factor inspection scheduling into your timeline.
Red Flags in Foundation Quotes
Foundation repair is a high-ticket, high-pressure sales industry. Watch for:
- One-visit pressure: "This price is only good today." Legitimate structural work does not expire at midnight.
- No engineering data: A pier count with no elevation survey or soil discussion is a guess, not a plan.
- Lifetime warranties with fine print: Many "lifetime" warranties cover only the piers themselves, not the labor to adjust them, and are void if you skip paid annual inspections.
- Diagnosing from the driveway: A real evaluation involves inside and outside inspection, elevation readings, and questions about drainage history.
- Quoting piers for hairline cracks: The classic upsell. Stable shrinkage cracks need monitoring or injection, not $10,000 of steel.
How to Hire Right for Structural Work
- Start with an independent engineer, not a repair company. A $350 to $800 structural assessment gives you an unbiased diagnosis and a repair specification you can bid out. This one step eliminates most upselling.
- Get three bids against the same spec. Give every contractor the engineer's report and ask for bids on identical scope. Compare them side by side here.
- Check how long they have been in business. A "lifetime warranty" from a two-year-old company is worthless. Look for 10-plus years and check complaints with your state attorney general.
- Fix drainage first or alongside. Piers without drainage correction treat the symptom. Gutters, grading, and downspout extensions are cheap insurance.
- Get everything in writing: pier locations and count, depth guarantees, lift targets, warranty terms including transferability if you sell.
Get an Honest Assessment
Start with our free cost calculator for a ballpark on your repair type, then find experienced general contractors who do structural work in your area. And if water is part of your problem, fix the drainage before you sign anything for piers.
