Concrete Foundation Repair Cost: What Contractors Should Charge
Concrete foundation repair costs $2,500-$25,000 depending on the type and severity. Crack injection runs $250-$800 per crack. Steel push piers cost $1,000-$3,000 per pier (8-12 piers typical). Helical piers run $1,500-$3,500 per pier. Slab leveling with polyurethane foam costs $2,000-$6,000. Carbon fiber reinforcement for bowed walls runs $300-$600 per strip.
Foundation repair is among the highest-value concrete work, with average project tickets of $5,000-$15,000 and strong demand from homeowners who cannot defer structural problems. The work requires specialized knowledge and equipment, which means less competition and higher margins than standard flatwork. This guide covers pricing for every common foundation repair method so you can bid these profitable projects with confidence.
Foundation Crack Repair Pricing
Foundation crack repair is the entry point for many concrete contractors into foundation work. Epoxy injection for structural cracks runs $250-$600 per crack, depending on length and accessibility. The epoxy material costs $30-$80 per crack; the majority of your price is labor and expertise. Polyurethane injection for water-stopping (non-structural) cracks costs $200-$500 per crack. Carbon fiber staples across cracks add $150-$300 per staple for additional structural reinforcement. Surface patching of cosmetic cracks runs $100-$250 per crack using hydraulic cement or polymer-modified repair mortar. For homes with multiple cracks, offer package pricing — 5+ cracks at a 10-15% discount per crack still maintains strong margins while increasing your total project value. Most foundation crack repairs take 2-4 hours per crack, making it possible to complete 2-3 crack repair jobs per day. This efficiency makes crack repair one of the highest revenue-per-hour services in concrete work.
Piering and Underpinning Costs
Piering is the primary solution for settled or sinking foundations and commands premium pricing. Steel push piers cost $1,000-$3,000 per pier installed, including excavation, bracket installation, and hydraulic driving to load-bearing strata. A typical residential project requires 8-12 piers, putting total project costs at $8,000-$36,000. Helical piers (screw piles) run $1,500-$3,500 per pier and are preferred for lighter structures or when driving depth makes push piers impractical. The helical pier material costs $200-$500 per pier; the remaining cost is equipment (hydraulic torque motor), labor, and expertise. Slab piers for interior slab settlement cost $1,200-$2,500 per pier, requiring core-drilling through the slab. Pier spacing is typically 6-8 feet on center along the affected wall. Always recommend a structural engineer's report before piering — this protects you from liability and ensures the repair design is adequate. Many engineers charge $300-$800 for a foundation inspection report, which you can coordinate for the client.
Bowed and Cracked Wall Reinforcement
Bowed basement walls require reinforcement to prevent further movement and potential collapse. Carbon fiber reinforcement strips are the most common solution for walls with up to 2 inches of inward bow, priced at $300-$600 per strip installed at 4-foot centers. A typical 30 linear ft wall requires 8-10 strips, totaling $2,400-$6,000. The carbon fiber material costs $50-$100 per strip; the labor involves surface grinding, epoxy application, and strip installation — a skilled two-person crew can install 8-10 strips per day. Steel I-beam braces for more severely bowed walls (over 2 inches) cost $500-$1,000 per brace, with 4-5 braces typical per wall ($2,000-$5,000). Wall anchor systems that use exterior ground anchors connected through the wall run $800-$1,500 per anchor pair, with anchors at 5-6 foot spacing. These systems allow for gradual wall straightening over time by tightening the anchors annually. For walls with active water intrusion through cracks, combine reinforcement with waterproofing — the added revenue from interior drain tile and sump systems ($3,000-$8,000) significantly increases project value.
Slab Leveling and Mudjacking Costs
Slab leveling restores settled concrete floors, driveways, and patios without full replacement. Traditional mudjacking pumps a cement-sand slurry beneath the slab at $3-$8 per sq ft, with most residential jobs running $1,500-$4,000. Polyurethane foam injection (polyjacking) is the premium option at $5-$12 per sq ft, with typical jobs at $2,000-$6,000. Foam is lighter than mudjacking slurry (reducing future settlement risk), cures in 15 minutes (vs. 24-48 hours for mudjacking), and requires smaller injection holes (5/8 inch vs. 1-2 inches). Equipment investment for polyjacking is significant ($15,000-$40,000 for a foam rig), but the per-job margins are excellent — material costs $1-$3 per sq ft and labor is minimal for a two-person crew. A typical polyjacking job takes 2-4 hours, allowing 2-3 jobs per day. If the slab has significant cracking in addition to settlement, recommend replacement instead — leveling a badly cracked slab creates a poor result and leads to callbacks.
Foundation Waterproofing as an Add-On
Foundation waterproofing pairs naturally with repair work and adds $3,000-$15,000 to project value. Interior drain tile systems (perimeter drainage beneath the basement floor) run $50-$80 per linear foot, including trench excavation, drain pipe, gravel, and concrete restoration. A typical basement with 120 linear ft of perimeter costs $6,000-$9,600 for drain tile alone. Sump pump installation adds $1,000-$2,500 including the pit, pump, check valve, and discharge line. Exterior waterproofing membrane application runs $8-$15 per linear foot of foundation wall (exposed area), but requires excavation at $30-$60 per linear foot to expose the wall. Dimple board drainage mat adds $2-$4 per sq ft of wall area. Crack injection combined with waterproofing membrane provides a comprehensive solution that justifies premium pricing. Present waterproofing as a package with foundation repair — homeowners who are already spending $8,000-$15,000 on structural repair are predisposed to invest another $5,000-$10,000 to prevent future water damage.
Foundation Inspection and Diagnosis Pricing
Many concrete contractors offer foundation inspections as a lead generation service, charging $150-$400 for a detailed assessment with written report. Some contractors offer free inspections and build the diagnostic time into the repair estimate. The advantage of charging for inspections is twofold: it qualifies serious homeowners and establishes your expertise before the repair proposal. During inspections, document crack patterns, measure wall deflection with a plumb line or laser, check floor level with a self-leveling laser, and note drainage conditions around the foundation perimeter. Horizontal cracks indicate lateral pressure; vertical cracks suggest settlement; stair-step cracks in block walls indicate differential settlement. Each pattern points to a specific repair method and helps you estimate accurately. For complex structural issues, recommend a third-party structural engineer's assessment ($300-$800). This protects your liability and gives the homeowner confidence in the repair design. Always photograph existing conditions thoroughly before beginning work — these before photos are essential if any dispute arises about the scope or quality of your repair.
Frequently Asked Questions
Average foundation repair costs $5,000-$15,000, with simple crack repairs starting at $250-$800 per crack and piering projects running $8,000-$36,000. The cost depends on the type of problem (cracks, settlement, bowing), severity, accessibility, and repair method. Always get a structural assessment before pricing major foundation work.
Create Professional Estimates in Minutes
Stop spending hours on estimates. QuotrPro uses AI to help concrete contractors create accurate, professional proposals that win more jobs.
Try Free for 3 DaysNo credit card required · 30-day money-back guarantee
Related Articles
How to Estimate Concrete Jobs: Complete Pricing Guide
Learn how to estimate concrete jobs accurately. Covers yardage calculation, material markup, labor rates, and profit margins for residential and commercial work.
Concrete Bid Proposal Guide: Win More Jobs
Learn how to write winning concrete bid proposals. Covers scope of work, itemized pricing, payment terms, and presentation strategies that close more jobs.
Concrete Crack Repair Pricing: What Contractors Should Charge
Complete pricing guide for concrete crack repair. Covers epoxy injection, routing and sealing, patching, and structural repair. Average cost $150-$800 per crack.
Concrete Footer and Footing Cost: What Contractors Should Charge
Complete pricing guide for concrete footers and footings. Covers residential foundations, wall footers, and pier footings. Average cost $5-$15 per linear foot.
Concrete Retaining Wall Pricing: What Contractors Should Charge
Complete pricing guide for concrete retaining wall construction. Covers poured, block, and gravity walls with footer, rebar, and drainage costs. $20-$50 per face sqft.
More Concrete Contractors Estimating Guides
No credit card required