Anchored by Black Hawk Lake — the southernmost glacial lake in Iowa — and the rolling plains of the Raccoon River corridor, Sac County homes face the kind of seasonal ground movement that calls for expert foundation repair and basement waterproofing. JLB brings all three under one roof to property owners across the county.
Get a precise analysis of your foundation and waterproofing situation, and a clear estimate on what any fixes or corrections might cost.
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From the architectural charm of the county seat, Sac City, out to the small-town streets of Auburn, JLB delivers foundation repair and basement waterproofing built for Sac County's clay-rich soils and freeze-thaw winters. The lake-and-river geography that defines this corner of west-central Iowa also means high water tables and shifting ground that can crack walls, flood basements, and heave flatwork. Our local crews handle every step, so homeowners near Black Hawk Lake and along the Raccoon River get one trusted team for the whole job.
Towns we serve in Sac County: Auburn.
Two Ways to Pay Over Time
12 Months Same As Cash
Pay the full balance within 12 months and you pay no interest.
5 Years at 6.99% APR
A lower monthly payment, spread over 60 months.
On approved credit. Ask for full terms at your free estimate.
Foundation repair in Sac County means working with clay-rich soils that expand and contract through the seasons, putting steady pressure on footings and walls. JLB stabilizes settling and shifting foundations with piering, wall braces, and crack repair engineered for Iowa's freeze-thaw climate, restoring level, secure structures for homes from Sac City to Auburn.
How we do it: foundation repair at JLB.
With Black Hawk Lake and the Raccoon River corridor keeping water tables high across parts of Sac County, basements here are prone to seepage and hydrostatic pressure. JLB waterproofs from the inside and out using interior drainage systems, sump pumps, and sealed barriers that keep groundwater out and basements dry through spring snowmelt and heavy rains.
How we do it: basement waterproofing at JLB.
Crawlspaces under Sac County homes trap moisture rising from damp clay soil, inviting mold, wood rot, and musty air upstairs. JLB seals the space with a heavy vapor barrier and spray foams both the crawlspace and basement areas for twice the protection at a lower cost than competitors who treat only one — a true differentiator for area homeowners.
How we do it: crawlspace encapsulation at JLB.
Poorly draining clay and the flat-to-rolling terrain around Sac County let water pool against foundations and pond in yards. JLB installs French drains, extends downspouts, and regrades problem areas to route water safely away from the home, protecting both the foundation and the landscape from the standing water that follows a Black Hawk Lake-area storm.
How we do it: french drains & drainage at JLB.
When a Sac County foundation wall has bowed, cracked through, or deteriorated beyond bracing, JLB replaces it entirely. We remove the failing wall, address the soil and drainage conditions that caused it, and rebuild with properly reinforced concrete or block — a permanent fix for older homes around Sac City where decades of ground movement have taken their toll.
How we do it: foundation wall replacement at JLB.
Official Sac County offices for permits, assessments, and property records:
Two Ways to Pay for It
12 Months Same As Cash
Pay the full balance within 12 months and you pay no interest.
Best if you can pay it off within a year.
5 Years at 6.99% APR
A lower monthly payment, spread over 60 months.
Best for bigger projects.
On approved credit. Ask for full terms at your free estimate.
Yes. We work throughout Sac County, including the county seat of Sac City, the town of Auburn, and the communities surrounding Black Hawk Lake. Our nearest crews dispatch from the Van Meter area, so reaching homes across west-central Iowa is part of our regular service territory.
Sac County sits on gently rolling plains shaped by glaciation, with clay-heavy Iowa soils that swell when wet and shrink when dry. Combined with high water tables near Black Hawk Lake and the Raccoon River corridor, plus deep winter freeze-thaw cycles, that ground movement is a leading cause of bowing walls, foundation cracks, and wet basements in the area.
Many structural and site projects in unincorporated Sac County fall under the county's planning and zoning rules, and incorporated towns like Sac City may have their own requirements. We recommend confirming with the Sac County Planning and Zoning office before work begins, and our team can help you understand what your specific project needs.
Yes. Beyond foundation repair and waterproofing, we install and repair driveways, patios, sidewalks, pool decks, retaining walls, and more across Sac County. The same freeze-thaw cycles and clay soils that move foundations also crack and settle flatwork, so we treat concrete as a core part of what we do here.
Our Locations
We're always close enough to help — our crews are local to your area.
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A free estimate takes 45 minutes and tells you exactly what's going on under your house — and exactly what it takes to fix it.
