Foundation repair is for houses where something structural has moved: a basement wall bowing in, a corner settling, a floor sagging, or a crack that keeps opening. Fox Valley WI Foundation Repair connects homeowners from Green Bay to Fond du Lac with independent local contractors who do this work. Tell us what you're seeing, and a contractor who serves your town can contact you about an inspection and a written quote.
What we help with
- Bowing and leaning basement walls
- Wall anchors
- Carbon fiber wall straps
- Steel wall braces
- Helical piers
- Push piers and settlement repair
- House leveling and sagging floors
- Structural crack assessment
- Foundation inspection and estimates
We don't cover waterproofing, sump pumps or leak sealing on this site.
Signs worth a closer look
Manufacturer Foundation Supportworks lists stair-step cracks in brick, gaps around door and window frames, a floor pulling away from a wall, and a chimney separating from the house as signs of uneven settlement [1]. For basement walls, Angi recommends an inspection once a wall has bowed more than 1 inch [2].
Choosing between foundation repair companies
Get more than one opinion. Angi recommends at least three quotes [3]. A few things to check on each:
- State credentials. To pull a building permit on a one- or two-family home, a contractor needs a Dwelling Contractor certification and a Dwelling Contractor Qualifier, unless the owner lives in the house and pulls the permit [4]. The City of Oshkosh points homeowners to the state's DSPS credential search to check [5].
- Permits. Local rules differ. Green Bay requires permits for structural alterations [6]. Appleton has a Basement Foundation Repair Permit [7]. Neenah lists foundation repair or replacement as needing a permit [8].
- Digging. Anchors and exterior piers need notice to Diggers Hotline at least 3 working days before excavation [9].
- Depth. Wisconsin's code puts footings below the frost line or at least 48 inches below grade, whichever is deeper [10]. Ask pier installers how deep they expect to go.
What it costs
Angi's 2026 national average for foundation repair is $5,175, and most homeowners pay $2,225 to $8,133 [3]. These are national estimates, not local quotes. Our foundation repair cost guide breaks prices out by method.
Where we connect homeowners
Our list covers 28 communities, A to Z: Allouez, Appleton, Ashwaubenon, Bellevue, Combined Locks, De Pere, Fond du Lac, Fox Crossing, Freedom, Grand Chute, Green Bay, Greenville, Harrison, Hobart, Hortonville, Howard, Kaukauna, Kimberly, Little Chute, Menasha, Neenah, Omro, Oshkosh, Pulaski, Sherwood, Suamico, Winneconne and Wrightstown. See service areas.
How it works
You send a short request. We hand it to an independent contractor working in your town, who gets in touch to set up an inspection. The contractor prices and does the work and answers for it. More on how it works.
FAQ
Is the request free?
Yes. There's no charge to send a request.
Do you do the repairs?
No. We connect you with independent contractors.
Do I need an engineer first?
Not always. An engineer's written report on a bowing wall runs $250 to $500 nationally, per Angi, which recommends using it as a neutral yardstick when bids come in [2].
Get quotes
Request a free quote and tell us your town and what you're seeing.
We're a referral service, not a contractor, and independent contractors may pay us for referrals.
Sources
- Foundation Supportworks (manufacturer), Signs of Foundation Failure. https://www.foundationsupportworks.com/foundation-repair/signs.html. Supports: stair-step brick cracks, frame gaps, floor gap, chimney separation.
- Angi, "How Much Does Bowing Basement Wall Repair Cost? [2026 Data]," updated Oct 1, 2026. https://www.angi.com/articles/typical-price-beams-support-bowing-wall.htm. Supports: inspection when bowing exceeds 1 in; engineer report $250 to $500, objective reference.
- Angi, "How Much Does Foundation Repair Cost? [2026 Data]," updated Oct 26, 2026. https://www.angi.com/articles/how-much-does-foundation-repair-cost.htm. Supports: at least three quotes; $5,175 average, $2,225 to $8,133.
- Wisconsin DSPS, Dwelling Contractor Qualifier. https://dsps.wi.gov/a-z-professions-list/dwelling-contractor-qualifier-dcq/. Supports: permit credential rule and owner-occupant exception.
- City of Oshkosh, License Information for Contractors/Homeowners. https://www.oshkoshwi.gov/InspectionServices/LicenseInformation.aspx. Supports: check contractor licensing at DSPS Credential/License Search.
- City of Green Bay, "Do I Need a Permit?" https://www.greenbaywi.gov/977/Do-I-Need-a-Permit. Supports: structural alterations need a permit.
- City of Appleton, Basement Foundation Repair Permit. https://applications.appleton.org/departments/public/onlinepermits/basementpermit.aspx.
- City of Neenah, "When Do I Need a Building Permit?" https://www.ci.neenah.wi.us/wp-content/uploads/2024/04/When-Do-I-Need-a-Permit.pdf. Supports: foundation repair or replacement.
- Wis. Stat. 182.0175(2)(am)1. https://docs.legis.wisconsin.gov/document/statutes/182.0175. Supports: 3 working days' notice.
- Wis. Admin. Code SPS 321.16(1)(a). https://docs.legis.wisconsin.gov/document/administrativecode/ch.%20SPS%20321.pdf. Supports: frost depth rule.