# Foundation Crack Repair Baton Rouge | Diagnose First, Then Seal > Foundation crack repair in Baton Rouge: we measure and map the crack, find what moved, then seal or stabilize. Honest answer on whether it's cosmetic. Call now. URL: https://foundationrepairbatonrougelouisiana.com/foundation-crack-repair/ ![Foundation Crack Repair in progress at a Baton Rouge home](https://foundationrepairbatonrougelouisiana.com/images/hero-foundation-crack-repair-slab-stem-wall-baton-rouge.webp) # Foundation Crack Repair in Baton Rouge Measuring, mapping and sealing slab and stem-wall cracks — after we confirm whether the ground under them is still moving. Typical range: **$400–$1,500 per crack (cosmetic)**. [Call (225) 635-8757](tel:+12256358757) [Book a free evaluation](https://foundationrepairbatonrougelouisiana.com/contact/) - Free on-site evaluation - Written per-piling price - Same-day callback Get a Free Quote Free on-site evaluation · written price - 20 years of industry experience - Written per-piling pricing - Same-day callback - Serving 5 parishes Last updated: September 22, 2026 [Foundation Repair Baton Rouge](https://foundationrepairbatonrougelouisiana.com/) is a foundation repair company with 20 years of industry experience, serving Baton Rouge and the Capital Region, and foundation crack repair is usually where our conversation with a homeowner starts. A crack is a symptom, not a diagnosis. Some cracks are harmless shrinkage from when the concrete cured. Others mean the ground under the house is still moving. Sealing the second kind without fixing the cause is money spent twice. Cosmetic crack repair typically costs **$400–$1,500 per crack**. When a crack turns out to be caused by active settlement, it’s priced together with the [slab foundation repair](https://foundationrepairbatonrougelouisiana.com/slab-foundation-repair/) that stops it. ## What we do on the first visit We map every crack — in the slab, the stem wall, the drywall and the brick — measure its width, note its direction and check for offset, where one side sits higher than the other. Then we take a laser elevation survey of every room. If the floor is within normal tolerance and the cracks are narrow and old, the answer is usually cosmetic. If one area is low, or the cracks line up with it, we’re looking at settlement. Where it isn’t clear, we install crack monitors and come back. A few weeks of readings through a wet-dry change tells us more than any guess. ## What causes cracks in Baton Rouge foundations Concrete shrinks as it cures, so fine cracks in slabs are normal and almost universal. Beyond that, the causes here are clay soil drying and swelling with the seasons, poorly compacted fill settling, water discharged against one side of the house, and — in a narrow band of neighborhoods — movement along the Baton Rouge or Denham Springs–Scotlandville faults. Fault cracks have a signature: they line up across the slab, driveway and street in the same direction. See our [Baton Rouge fault guide](https://foundationrepairbatonrougelouisiana.com/guide/baton-rouge-fault-foundation-damage/) if that sounds familiar. ## How we repair cracks Cosmetic slab cracks are routed and sealed or injected with epoxy, which bonds the concrete, or polyurethane, which stays flexible and stops water. Stem wall cracks that let water in get polyurethane injection. Drywall and brick cracks are handed off to the right trade or handled as [brick veneer crack repair](https://foundationrepairbatonrougelouisiana.com/brick-crack-repair/). If settlement is the cause, the cracks wait until the pilings are in and the house has been lifted — sealing first would just crack the patch. ## Paperwork You get a written crack map with widths, the elevation readings and a plain statement of whether we think each crack is cosmetic or structural and why. That document is also what buyers, sellers and inspectors ask for. See [how big is too big for a foundation crack](https://foundationrepairbatonrougelouisiana.com/guide/how-big-is-too-big-foundation-crack/) for width guidelines. ## What's included - Crack map of slab, walls and brick - Width measured at every crack - Laser elevation survey to check for settlement - Crack monitors installed where movement is suspected - Honest cosmetic-vs-structural call in writing - Injection or routing and sealing as appropriate - Coordination with piling work if settlement is found - Follow-up check on monitored cracks ## Crack repair options compared DIY / patch it Cheapest crew Done properly Cause checked No Rarely Elevations + monitors first Material Caulk or patch Hydraulic cement Epoxy or polyurethane injection Comes back? Usually If ground still moving Not if cause is fixed Typical cost $20–$100 $200–$500 $400–$1,500 per crack ## Related resources - [How Big Is Too Big for a Foundation Crack?](https://foundationrepairbatonrougelouisiana.com/guide/how-big-is-too-big-foundation-crack/) - [9 Signs of Foundation Problems in Baton Rouge Homes](https://foundationrepairbatonrougelouisiana.com/guide/signs-of-foundation-problems/) - [House Settling vs Foundation Problems — How to Tell the Difference](https://foundationrepairbatonrougelouisiana.com/guide/house-settling-vs-foundation-problems/) - [Is the Baton Rouge Fault Damaging My Foundation?](https://foundationrepairbatonrougelouisiana.com/guide/baton-rouge-fault-foundation-damage/) Talk to a person Free on-site evaluation, written price per piling. [(225) 635-8757](tel:+12256358757) [Book online](#service-form) Mon–Fri 7:00 AM–6:00 PM · Sat 8:00 AM–1:00 PM Methods & standards - Crack width measured and logged - Crack monitors on active cracks - Epoxy or polyurethane injection - Routed-and-sealed slab joints - Settlement ruled in or out first - LSLBC-registered contracting Price guide $400–$1,500 per crack (cosmetic) Structural cracks are priced with the piling work that stops them [Estimate my house](https://foundationrepairbatonrougelouisiana.com/tools/foundation-repair-cost-estimator/) The process ## How foundation crack repair works, step by step 1. 1 ### Map Every crack photographed, measured and drawn on a plan of the house. 2. 2 ### Test Laser elevations tell us whether the ground moved; monitors tell us whether it's still moving. 3. 3 ### Decide Cosmetic cracks get sealed. Cracks from active settlement get the settlement fixed first. 4. 4 ### Seal Injection or routing and sealing, then a follow-up look to confirm it stayed closed. ## What the work looks like Illustrative photos of the methods described on this page. [Foundation Repair Baton Rouge Call us to schedule a free foundation crack repair estimate Free laser survey. Written plan with unit prices. (225) 635-8757](tel:+12256358757) ## Foundation Crack Repair FAQ ### When is a foundation crack cosmetic? Hairline cracks under about 1/8 inch that aren't growing, aren't offset (one side higher than the other) and aren't paired with sticking doors or sloping floors are usually shrinkage or minor seasonal movement. They can be sealed or simply watched. ### What makes a crack structural? Width over 1/4 inch, growth over months, vertical offset, stair-step cracks in brick, or cracks that come with doors binding and floors sloping. Those point to the ground under the house still moving, which sealing alone won't fix. ### Can you just fill the crack? Yes, if it's cosmetic. If the slab is still settling, filling the crack hides the symptom and it reopens. We'd rather tell you that before you spend money on it. ### What is a crack monitor? A small calibrated gauge fixed across a crack that shows movement to fractions of a millimeter. Reading it over a few weeks or months tells us whether the crack is active. ### Is the foundation evaluation really free? Yes. The on-site evaluation, laser elevation survey and written plan cost nothing and carry no obligation. If the numbers say your house is within normal tolerance, we tell you that and leave the readings with you. An independent engineer's report, when a lender or buyer requires one, is billed by the engineer — typically $500–$2,000. ## Related services [Slab Foundation RepairPressed concrete pilings driven to refusal under a settling slab, then the house is lifted back toward level and re-measured.](https://foundationrepairbatonrougelouisiana.com/slab-foundation-repair/) [Brick Veneer Crack RepairRepointing and replacing brick along stair-step cracks — after checking whether the slab under the wall is still dropping.](https://foundationrepairbatonrougelouisiana.com/brick-crack-repair/) [Foundation InspectionA laser elevation survey, crack map and drainage check with a written summary — so you know if you have a problem before anyone quotes a fix.](https://foundationrepairbatonrougelouisiana.com/foundation-inspection/) Book a free foundation crack repair evaluation Start with clear answers from an experienced team. Tell us what you are seeing, and we will call back the same business day to arrange your free evaluation. Faster by phone: [(225) 635-8757](tel:+12256358757)