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Basement Waterproofing2026-11-05T11:10:09-06:00

Basement Waterproofing in Sioux Falls

Do you have water on the floor, damp walls or a musty smell in your basement? Blackburn Foundation Repair will find where the moisture is coming from, explain what's causing it and recommend the right solution to help keep the space dry.

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Signs You Need Basement Waterproofing

Basement water problems rarely start with a flood. Slow leaks, seepage and excess humidity can continue for years before leading to visible damage. Spotting the problem early can help prevent moisture-related damage and, when foundation problems are involved, more serious structural repairs in the future.

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  • Standing Water or Puddles After Rain

    Discovering puddles or standing water after heavy rain is an obvious sign that water is entering your basement. It may be entering through the floor, walls, cracks or the seam where the wall meets the floor as groundwater collects around your foundation.

  • Water Where the Wall Meets the Floor

    A wet line or puddle along the basement perimeter often means water is entering through the cove joint—the small seam where the foundation wall meets the floor. This often occurs when groundwater pressure increases around and beneath the foundation.

  • Musty or Earthy Smells

    That basement smell almost always has a source. Persistent musty or earthy odors can be a sign of excess humidity, hidden moisture or mold growth. Even when you can’t see water, elevated moisture levels can affect stored belongings and the air throughout your home.

  • White, Chalky Residue on Basement Walls

    White, powdery deposits on concrete or masonry walls are called efflorescence. It’s left behind when moisture moves through the wall and evaporates. The residue itself isn’t the problem, but it’s proof that water is making its way through your foundation walls.

  • Cracks in Basement Walls or Floors

    Foundation cracks can open a direct path for groundwater to enter your basement. Some cracks are due to normal concrete shrinkage, while others may suggest foundation movement. An inspection can determine where the water is coming from and whether the crack needs structural repair.

  • Condensation, Rust or Peeling Paint

    You don’t need puddles to have a moisture problem. Condensation on pipes or windows, rust on metal surfaces, peeling paint, or damp belongings can all point to high basement humidity. A basement dehumidifier can help control moisture that stays in the air.

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Causes

What Causes a Wet Basement?

Water generally enters a basement because of what's happening around or beneath the home. Groundwater, drainage problems, foundation cracks and failed sump systems can all create a path for moisture to get in.

  • Groundwater & Hydrostatic Pressure

    After heavy rain or snowmelt, the soil around your foundation can become waterlogged. As groundwater accumulates, it creates hydrostatic pressure—simply put, water pushing against your basement walls and floor. Over time, that water can force its way through cracks, joints or porous concrete.

  • Foundation Cracks & Openings

    Cracks in basement walls and floors provide direct paths for water. They can develop from concrete shrinkage, foundation settlement, soil pressure or seasonal movement. The right repair depends on both why the crack formed and where the water is entering.

  • Poor Drainage Around the Home

    Clogged gutters, downspouts that end too close to the home, grading that slopes toward the home or cracked or settling pavement can push rainwater toward your foundation instead of away from it. Over time, that extra water saturates the surrounding soil and increases the chance of basement seepage.

  • Drainage or Sump Pump Failure

    Sometimes the failure is in the system that is meant to remove the water. A blocked or deteriorating basement drain, failed sump pump, power outage, plumbing leak or storm sewer backup can easily turn an otherwise manageable moisture problem into basement flooding.

Basement Waterproofing Done Right

See why XX,XXX homeowners have trusted Blackburn Foundation Repair to help keep their basements dry and protected. Book your free, no-obligation concrete inspection today.

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Our Basement Waterproofing Services

A complete basement waterproofing system does more than address a single visible leak. The goal is to handle water where it enters, collect and remove it safely, control wall moisture and reduce excess humidity so your basement stays drier and more comfortable year-round.

Interior Drainage Systems

An interior drainage system intercepts water where it enters along the basement perimeter and directs it to the sump pump before it reaches your floor. It’s commonly recommended for recurring seepage, groundwater and water entering at the wall-floor joint.

Sump Pump Systems

Your sump pump is responsible for moving collected water out of your basement and safely away from your foundation. Blackburn Foundation Repair installs reliable sump pump systems with options for added pumping capacity and battery backup protection during power outages.

Basement Vapor Barriers

A basement vapor barrier covers foundation walls to help control moisture passing through porous concrete or masonry. It routes wall seepage into the drainage system while creating a cleaner, brighter finished appearance for damp or unfinished basement walls.

Radiant Wall Barriers

A radiant wall barrier helps control wall moisture while adding a layer of insulation between your basement and the foundation walls. It can help create a drier, more comfortable space while channeling moisture toward the basement drainage system.

Basement Dehumidifiers

Even without standing water, excess humidity can leave your basement feeling damp and smelling musty. A high-performance basement dehumidifier takes moisture out of the air to help control humidity and create a drier, more comfortable environment year-round.

Mold Control

If excess basement moisture has contributed to mold or mildew, moisture control is only part of the solution. Mold treatment helps address existing growth while a properly designed waterproofing system helps correct the conditions that allowed it to develop.

Air Purifiers

Basement air doesn’t stay put. An air purification system helps cut down airborne particles, allergens, odors and other contaminants, improving air quality in the basement and helping create a cleaner environment throughout the rest of your home.

Egress Windows & Window Wells

Egress windows bring natural light and a code-compliant emergency exit to finished basement spaces. Properly installed window wells also help control water around below-grade windows, giving you a safer, brighter basement without adding another entry point for water.

How It Works

Our Basement Waterproofing Inspection Process

Step 1

Schedule Your Free Inspection

Tell us what you’ve noticed—whether that’s standing water, damp walls, musty odors or another concern—and we’ll set up a time for a trained specialist to inspect your basement.

Step 2

Find the Source of the Water

Your specialist will inspect your basement to identify where the water or moisture is coming from and what’s causing it. We may check foundation walls and floors, cracks, drainage, humidity levels and your existing sump system.

Step 3

Review Your Repair Plan

We’ll go over what we found and recommend the basement waterproofing solutions that make sense for your home. You’ll know the repair plan, cost, warranty and expected timeline before deciding how you’d like to move forward.

Step 4

Install Your Waterproofing System

When you’re ready, we’ll get your project on the schedule. Our trained crews install the recommended system, check everything to be sure it’s working properly, clean the work area and show you what you need to know about your new system.

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Benefits

Why Sioux Falls Homeowners Choose Blackburn Foundation Repair

You shouldn't have to guess what's making your basement wet or what it will take to fix it. Blackburn Foundation Repair begins with a free inspection and written estimate, then recommends a solution based on what we find in your home.

Our trained, in-house crews do the work, and financing options are available when you need them. With long-term warranty protection and annual maintenance available for installed systems, we'll be here to help keep your basement protected after installation, too.

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What To Expect

Ready to get started?

Schedule a free estimate to start your repair journey with Blackburn Foundation Repair.

Schedule your inspection

Fill out our form or give us a call to book your inspection. Share what you’ve noticed so we can send the right expert to your home.

Full home
inspection

An expert will inspect the problem area and surrounding conditions, including soil movement, drainage, structural integrity, and any related concerns.

Clear explanation
of findings

We’ll walk you through what we’re seeing in easy-to-understand language so you know the root cause of the issue, not just the symptoms.

Review recommendations

If repairs are needed, we’ll outline your options, pricing, and timeline so you can make the best decision for your home.

Schedule your free inspection—

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Meet with a trusted expert, and get
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Dan was very professional, explained everything with expertise, and seemed [...]

Brent N.

Couldn’t be happier!! A gentleman, Rolando, came and leveled our [...]

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Orlando Rodriguez and Jorge Garcia did efficient, skillful and very [...]

B. Porter

Jon was awesome! He knew what was best for our [...]

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From start to finish every epresentatives I dealt with were [...]

Codi B.

We’re very polite, professional, knowledgeable, worked well together and did [...]

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I just want to say a Big Thank you to [...]

Thomas M.

Blackburn completed a sump pump installation and radon mitigation system [...]

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Lyndon was very professional and knowledgeable. He surveyed the area, [...]

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Frequently Asked Questions

How long does basement waterproofing take, and is the warranty transferable? 2026-10-06T11:08:11-05:00

Installation time depends on the size of your basement and the waterproofing system being installed. Many residential projects can be completed within a few days, while larger or more complex repairs may take longer. Blackburn Foundation Repair offers warranty protection on qualifying systems, with transferable coverage available on certain products. Your specialist will review the exact terms before installation. 

Can I waterproof my basement myself with sealant or waterproof paint? 2026-10-06T11:07:44-05:00

Waterproof paint or masonry sealer may help with minor surface moisture, but it won’t stop water being pushed through cracks, joints or beneath the basement floor. If you have recurring seepage or standing water, the underlying drainage or groundwater problem needs to be addressed. Painting over it can mask the symptom without fixing the cause. 

Who should I call when there’s water in my basement? 2026-10-06T11:07:07-05:00

If water is entering your basement, start by calling a basement waterproofing contractor who can pinpoint where the water is coming from before recommending a repair. Blackburn Foundation Repair provides a free basement inspection to pinpoint the source of the problem and determine whether you need drainage, a sump pump, crack repair, humidity control or another solution. 

Why does water come into my basement only after it rains? 2026-10-06T11:06:11-05:00

Water commonly shows up in a basement after rain because saturated soil raises groundwater and pressure around the foundation. That water can then enter through foundation cracks, porous concrete or the joint where the basement wall meets the floor. 

Grading that slopes toward the home, clogged gutters, short downspouts and other drainage problems can make the problem worse by sending even more water toward the foundation. 

Do I need interior or exterior basement waterproofing? 2026-10-06T11:04:56-05:00

It depends on where the water is coming from. Interior waterproofing collects water that reaches the foundation and moves it away before it enters your living space. Exterior solutions address water before it reaches the foundation. Some homes need one approach; others benefit from a combination. An inspection helps determine what makes sense for your home. 

Is basement waterproofing worth it? 2026-10-06T11:04:18-05:00

Basement waterproofing can be worth it when your home has recurring seepage, standing water or excess humidity because it addresses the conditions allowing the moisture problem to continue. A properly designed system can help protect the basement from moisture-related damage and make the space cleaner, drier and more usable. 

The key is addressing the source of the water rather than simply covering visible symptoms. 

How much does basement waterproofing cost in Sioux Falls? 2026-10-13T13:28:07-05:00

Basement waterproofing costs depend on the size of the basement, the way water is entering and which repairs or waterproofing components are needed. 

What is basement waterproofing, and what does it actually include? 2026-10-06T11:01:09-05:00

Basement waterproofing is a combination of solutions designed to keep unwanted water and moisture out of your basement. Depending on the source of the problem, that can include an interior drainage system, sump pump, wall vapor barrier, dehumidifier, crack repair or exterior drainage improvements. The right system depends on the way water is entering your home. 

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Corporate Office
11844 Valley Ridge Drive
Papillion, NE 68046

1-402-389-3883
1-402-227-8445

Omaha
11844 Valley Ridge Drive
Papillion, NE 68046

Kansas City
15601 W 113th St.
Lenexa, KS 66219

Denver
9652 Hanover Ct West
Henderson, CO 80640

Wichita
8853 E 37th St N
Wichita, KS 67226

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Sergeant Bluff, IA 51054

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8910 N Industrial Rd
Peoria, IL 61615

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Grand Island, NE 68803

Springfield
1619 N. Packer, Suite 104
Springfield, MO 65803

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9850 Douglas Ave Suite 100
Urbandale, IA 50322

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Peoria, IL 61615

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