Locally owned • Sioux Falls, SD Mon–Fri 7am–7pm • Sat 8am–4pm
📞 (605) 555-0123

Basement Waterproofing & Foundation Repair in Sioux Falls, SD

Wet basement? Cracked foundation wall? Sump pump that can't keep up? We stop the water and stabilize your home — guaranteed for life. Free on-site inspection, no pressure, no surprises.

Lifetime Transferable Warranty Licensed & Insured 4.9★ from 187+ Sioux Falls homeowners Free Inspection, Same-Week Appointments

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Sioux Falls' Most Trusted Basement & Foundation Specialists

From hairline foundation cracks to fully flooded basements, we fix it right the first time — with warranties that follow the home, not the homeowner.

Interior basement waterproofing membrane being applied to a foundation wall

Basement Waterproofing

Interior drain tile, sump systems, vapor barriers, and exterior excavation. We stop water at the source so your basement stays dry through every Sioux Falls spring thaw.

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Bowing basement wall reinforced with carbon fiber straps

Foundation Repair

Bowing walls, settlement cracks, and structural movement — repaired with carbon fiber, steel I-beams, or push piers depending on the conditions of your home.

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Foundation crack being repaired with polyurethane injection ports

Foundation Crack Repair

Polyurethane and epoxy injection from the inside — a clean, permanent fix for poured concrete cracks that's faster and far cheaper than excavation.

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New stainless sump pump with battery backup installed in a Sioux Falls basement

Sump Pump Installation

Primary pumps, battery backups, and Wi-Fi monitoring. We size and install a pump that handles the worst spring runoff Sioux Falls can throw at it.

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Spotlessly clean basement after professional mold remediation

Mold Remediation

EPA-certified removal, HEPA-filtered containment, and antimicrobial treatment — followed by waterproofing so the mold doesn't come back next season.

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Newly installed basement egress window with steel window well

Egress Windows

Bring your basement up to code and turn it into a legal bedroom. Cleanly cut foundation openings, steel window wells, and flashing that won't leak.

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Encapsulated crawl space with bright white vapor barrier and dehumidifier

Crawl Space Encapsulation

Seal out moisture, eliminate musty odors, and lower your energy bills. Heavy-duty vapor barriers, dehumidification, and structural support.

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A well-maintained Sioux Falls home with a dry, protected basement

Free On-Site Inspection

We come to your home, identify the root cause, and quote you a fixed price — usually within 24-48 hours of your call. No pressure, no upsell, no surprises.

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Why Sioux Falls Homeowners Choose Us

Wet basements aren't just an inconvenience — they damage your foundation, your indoor air, and your home's value. Here's why our neighbors trust us to fix the problem for good.

Lifetime Transferable Warranty

Our interior waterproofing systems are warrantied for the life of your home — and that warranty transfers to the next owner. It's a real asset at resale, not just marketing.

4.9 Stars From 187+ Local Reviews

We've earned a 4.9-star average from Sioux Falls homeowners on Google, Facebook, and the Better Business Bureau. Our reputation is everything in a town this size.

Locally Owned, Locally Built

We live and work here. We know the soil conditions, the freeze/thaw cycle, and the older neighborhoods of Sioux Falls — because we grew up in them.

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Honest, Fixed-Price Estimates

You'll get a written quote on the spot with no high-pressure tactics and no "today only" gimmicks. The price you see is the price you pay.

Same-Week Inspections

When water is in your basement, you don't have weeks to wait. We typically schedule free inspections within 2-3 business days.

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Certified, Insured Technicians

Every technician is trained on the latest waterproofing and structural repair methods, and the company is fully licensed and insured for your protection.

What Sioux Falls Homeowners Are Saying

★★★★★

"Our basement had been wet every spring for six years. The team came out, found the source in 20 minutes, and had us totally dry within two days. Worth every penny."

Megan H. — All Saints, Sioux Falls

★★★★★

"Got three quotes for foundation crack repair. These guys were the most thorough, the most reasonable, and the only ones who explained what was actually causing it."

Dan T. — Brandon, SD

★★★★★

"Sump pump died during the April rains. They had a new pump with battery backup installed the next morning. Polite, fast, and the price was fair."

Linda & Bob R. — Harrisburg, SD

★★★★★

"The lifetime transferable warranty actually closed our home sale — the buyers' inspector flagged old water staining and the warranty paperwork answered every concern."

Patrick S. — McKennan Park

★★★★★

"Encapsulated our crawl space last summer. The whole first floor of the house feels different — drier, less musty, and our dehumidifier upstairs barely runs anymore."

Jen W. — Tea, SD

★★★★★

"Honest, on time, and they cleaned up every scrap. Hard to find a contractor in Sioux Falls who does all three. Couldn't recommend them more."

Greg M. — Hayward neighborhood

Serving Sioux Falls & the Surrounding Area

Family-owned and rooted in the Sioux Empire. If your home is within about 40 minutes of downtown, we serve it.

Frequently Asked Questions

The questions Sioux Falls homeowners ask us most often. Don't see yours? Just call.

How much does basement waterproofing cost in Sioux Falls?
Most basement waterproofing projects in Sioux Falls run between $3,500 and $12,000, depending on whether the work is interior or exterior, the linear footage involved, and whether a sump pump or drain tile is included. We provide free no-pressure on-site inspections so you know the exact price before any work begins.
Why is my basement leaking after heavy rain?
Most basement leaks in Sioux Falls homes come from one of three sources: hydrostatic pressure pushing water through floor or wall cracks, foundation cracks caused by soil settlement and the freeze/thaw cycle, or a failing sump pump that can't keep up with the water table during heavy spring rains. A free inspection identifies the cause so we can fix it the right way the first time.
Do you offer a warranty?
Yes — our interior waterproofing systems carry a lifetime transferable warranty, and our foundation repair work is backed by a 25-year structural warranty. The transferable piece is a real asset when you sell your home.
How long does a basement waterproofing project take?
Most interior waterproofing jobs in a Sioux Falls home are completed in one to three days. Foundation repairs and exterior excavation projects can take longer depending on scope. We give you a firm timeline before we start.
What areas do you serve?
We serve Sioux Falls and the surrounding metro area including Brandon, Harrisburg, Tea, Dell Rapids, Hartford, Lennox, Crooks, and Brookings. If you're nearby, just call — we travel throughout southeastern South Dakota.
Will you work with my insurance company?
Yes. We can document the damage thoroughly, provide itemized estimates that satisfy adjusters, and coordinate directly with your insurance carrier when the loss is covered. Many basement repairs aren't covered by standard policies, but we'll help you find out.