Foundation Repair Cost Calculator
Foundation repair typically costs $2,000–$7,500 in 2026, with minor crack repairs from $500 and full underpinning running $10,000+. Use this foundation repair cost calculator to estimate your job three ways — by repair method, by pier count, or by damage severity — and get a low-to-high cost range with a line-by-line breakdown.
Minor = hairline cracks, small leaks. Moderate = sticking doors, visible wall cracks. Severe = bowing walls, major settlement, structural movement.
Rates are 2026 US national typicals for contractor-installed work. Labor and access conditions move real quotes up or down.
Estimates only — not contractor quotes. Foundation work should always start with an on-site inspection by a licensed foundation contractor. This calculator gives planning figures, not repair advice.
How the foundation repair cost calculator works
Foundation damage has three common causes: differential settlement (one part of the house sinks faster than the rest), hydrostatic pressure from groundwater pushing on basement walls, and expansive clay soils that swell and shrink with moisture. The right repair — and its price — depends on which cause is at work.
Crack injection seals non-structural cracks with epoxy or expanding polyurethane foam. Carbon fiber straps glue to interior walls to stop bowing. Helical piers screw into load-bearing soil and push piers drive to bedrock or stable strata; both transfer the home’s weight off failing soil. Slab jacking pumps grout under settled concrete to lift it back into place. Interior waterproofing adds a drainage channel and sump system to manage water.
Four factors drive the final bill: the repair method, the extent of the damage, access (tight crawl spaces cost more labor), and your region. Contractors usually quote a range after an inspection because soil conditions can’t be fully known until work starts — this calculator mirrors that by giving low-to-high estimates.
total = quantity × per-unit rate · pier range = piers × ($1,000–$3,000)
Related tools
Keep exploring: foundation work often means fresh concrete, so check the Concrete Slab Calculator for the slab itself and the Concrete Cubic Yard Calculator to order the right volume. Pairing drainage repairs with waterproofing? See the Gravel Calculator for drain rock.
Foundation repair cost calculator FAQ
What is the average cost of foundation repair?
The average foundation repair costs $2,000–$7,500 in 2026. Minor crack repairs start around $500, typical piering jobs run $4,000–$12,000, and full underpinning of a large home can exceed $20,000. Final cost depends on the repair method, the extent of damage, and your region.
How much does foundation repair cost per pier?
Foundation piers cost $1,000–$3,000 each installed, whether helical or push piers. A typical house needs 8–10 piers, so most piering projects land between $8,000 and $30,000.
How do I know if my foundation needs repair?
Warning signs include stair-step cracks in brick or block walls, doors and windows that stick, sloping or bouncy floors, gaps between walls and ceilings, and water seepage in the basement. Any crack wider than 1/4 inch or one that keeps growing deserves a professional inspection.
How long does foundation repair take?
Crack injection usually takes 1–3 days. Piering a typical home takes 3–5 days. Interior waterproofing systems take 1–2 weeks. Severe underpinning projects can run longer, but most homeowners are back to normal within a week.
Does homeowners insurance cover foundation repair?
Usually not. Standard policies exclude damage from soil settlement, poor drainage, and normal wear. Insurance typically only pays when the damage comes from a covered sudden event, such as a burst plumbing pipe. Read your policy’s exclusions or ask your agent before filing a claim.
Is slab or crawl space foundation repair cheaper?
Slab jacking ($500–$1,300) is often the cheapest fix when the problem is settled concrete rather than structural failure. Piering costs about the same for slab and crawl space foundations. Crawl spaces can cost more overall because they often need added moisture control and drainage work.
Can I repair foundation cracks myself?
Hairline, non-structural cracks can be sealed with a $50–$100 epoxy injection kit. Structural cracks, bowing walls, and any settlement require a licensed foundation contractor — piering and underpinning are not DIY jobs, and mistakes can make the damage worse.