Our Experience

  • Served 30,000+ Homes Since 1985
  • Locally Owned & Operated
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The #1 Choice in Crawl Space Repair
Lifetime Transferable Warranty
Top waterproofing contractors Kansas City

A healthy home environment starts from the ground up. The crawl space, the lowest part of your home, is naturally susceptible to foundation damage, water damage, and air quality issues. Examples of these types of damage could include wood rot, pooling water, uneven floors, foul odors, and mold.

Even if you don’t have a basement, water and moisture can enter your home through your crawl space. Did you know that up to 40% of the air you breathe on your lower floors comes from the space below your home? It’s true. KC Waterproofing and Foundation Repair offers expert crawl space repair in Olathe, KS.

We carefully investigate your crawl space problems and determine the best solutions. By analyzing your home and soil, we not only fix the symptoms but also treat the problem with a lasting solution. We’ll perform your crawl space repair in Olathe, KS, as fast as we can so you don’t risk breathing in mold, mildew, bacteria, and more. Schedule a FREE, no-obligation crawl space inspection today!

Why Should You Get Your Crawl Space Repaired in Olathe, KS?

Crawl spaces are easily ignored. Over time, neglecting your crawl space can lead to weakened floor joists, uneven floors, and mold, affecting your home’s air quality. Here’s why you should get your crawl space repaired:

Improved Air Quality

Crawl space repair, including encapsulation, helps improve your home’s air quality. Sealing off the crawl space from the elements reduces the possibility of mold growth and water intrusion. As a result, allergens and pollutants are removed from the air, which makes it safer to breathe.

Better Insulation

Insulation and vapor barriers help maintain a consistent temperature in your crawl space. As a result, the HVAC system in your home has to work less, lowering energy bills. Once the crawl space temperature stabilizes, it also keeps your home more comfortable, preventing humidity or cold floors.

Improved Structural Health

Fixing puddles, rotting wood, and cracks in the foundation early on protects you from expensive fixes later. A well-maintained crawl space provides a sturdy foundation for your home, so keeping it in excellent condition helps maintain the long-term health of your home’s structure.

Are you experiencing any problems with your crawl space in Olathe, KS? Contact us today to take action!

Our Crawl Space Repair Services in Olathe, KS

Our comprehensive crawl space repair in Olathe tackles moisture intrusion, mold growth, structural damage, and pest infestation. Depending on the problem with your crawl space, we offer a customized repair solution for your home.

Crawl Space Ventilation

In most homes, the crawl space walls have vents that allow the outside air to circulate. Over time, a vented crawl space causes a series of problems. For instance, in the summer, warm, moist air enters the crawl space, and the air condenses on cooler surfaces. This moisture causes mold to grow and wood to rot. The wet wood will also attract insects and termites, causing additional damage. Fiberglass insulation also absorbs moisture and sags or falls out of place. That’s why, in our crawl space ventilation service in Olathe, KS, we seal the vented crawl space to isolate this area from exterior temperature and humidity conditions. We also install an insulated, weather-stripped vent to provide air circulation as well as protection from flood damage.

Crawl Space Encapsulation

In our crawl space encapsulation service in Olathe, KS, we tightly seal your crawl space by installing a polyurethane vapor barrier to prevent moisture from seeping through the walls, ceilings, and floors. Our encapsulation system blocks all leakages and ensures that your crawl space remains dry and free from moisture issues.

Crawl Space Dehumidification

We install crawl space dehumidifiers in Olathe, KS, to remove moisture from the air. We assess the level of moisture in your crawl space and strategically install a dehumidifier for optimal performance. As a result, the lowest part of your home remains dry and automatically maintains a pre-set humidity level, reducing mold and mildew growth.

Crawl Space Sump Pump Installation

We provide sump pump installation in Olathe, KS, to remove water from your crawl space before it causes problems. We install high-performing sump pump systems with battery backups at the lowest point of your crawl space. A sump pump automatically removes any water that accumulates in your crawl space.

Crawl Space Interior Drain System

We install a perimeter drain system that captures any water seeping in around the crawl space walls or floors and directs it to the sump pump. Our drain system prevents flooding and standing water in your crawl space, keeping the area dry all year.

Crawlspace Wall Anchors

When too much hydrostatic pressure is applied to the crawl space walls, they begin to crack and bow. To address these issues, we attach steel plates to the crawl space walls. These plates are connected to steel rods that attach to an anchor in the soil. These rods can be tightened gradually to straighten and strengthen the crawl space walls.

Crawlspace LightFoot Interior Footing and Column System for Interior Floor Stabilization

This is a dependable solution for replacing worn-out supports and restoring stability to your floors. The system not only levels but also reinforces, ensuring that your foundation is secure and reliable.

Learn more about our services and how we can protect your home. Get in touch with us today!

Our Crawl Space Repair Process in Olathe, KS

Our crawl space repair process in Olathe, KS, is straightforward. Here’s a brief overview of our approach:

Step 1: On-Site Inspection

Our team starts by assessing your crawl space and noting all the problems and repairs needed. Then, they will provide you with a detailed diagnostic report with a cost breakdown.

Step 2: Starting the Repairs

Next, we execute the repair plan. Depending on the scope of work and the repair selected, our team takes 1 to 3 days to complete a project. Our certified and experienced technicians use high-quality materials and advanced techniques to repair your crawl space properly.

Step 3: Final Inspection

Once the repairs are complete, we conduct a final inspection to make sure that our repairs are successful.

Hire the Best Crawl Space Repair Company in Olathe, KS

KC Waterproofing and Foundation Repair is the best crawl space repair company in Olathe, KS. We have a team of experienced crawl space and basement waterproofing professionals in Olathe, KS, who use a customer-centric repair approach to ensure your home’s long-term stability and health. To ensure a safe, dry, and stable crawl space for years to come, schedule a consultation with us today! We also provide Olathe concrete leveling and foundation repair in Olathe.

Frequently Asked Questions (FAQs)

Crawl space repair and encapsulation involve addressing structural, moisture, and insulation issues to improve your home’s stability. Encapsulation involves sealing the floors and walls of your crawl space with a vapor barrier made of heavy-duty polyethylene. The main objective of crawl space repair and encapsulation is to prevent ground moisture from seeping into the crawl space and causing any costly foundational damage.

The following are the main causes of crawl space damage:

  • Poor ventilation
  • High humidity
  • Water intrusion from the ground or leaks
  • Inadequate insulation

These causes increase the chance of mold growth, wood rot, pest infestations, and other structural issues (e.g., sagging floors and foundation cracks).

To dry out a flooded crawl space, we install a sump pump, drainage systems, and a dehumidifier. The drainage system sends water to the sump pump, which then directs it away from the home’s foundation. The dehumidifier helps dry out the area completely. Addressing the source of flooding is the best way to avoid expensive repairs down the road. Call us today for an inspection!

Yes! Our crawl space encapsulation comes with a lifetime transferable warranty. To learn more about the warranty, consult our professionals today!

Satisfied Customers

Mario was great! He very informative and helpful! I would highly recommend him!
Mario came out to check the sump pump. After cleaning the pit out and checking both the main and backup pump he wiped everything done and left the area cleaner than when he got there. Very friendly and knowledgeable guy!
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Satisfied Customer Reviews

Mario was great! He very informative and helpful! I would highly recommend him!
Mario came out to check the sump pump. After cleaning the pit out and checking both the main and backup pump he wiped everything done and left the area cleaner than when he got there. Very friendly and knowledgeable guy!
Don Derry with KC Waterproofing has been our "go-to" foundation repair specialist since 2005! We have had him to our homes multiple times. The project always wraps up with us having peace of mind. This past time with 14 piers installed, was no exception. His crew was polite and respectful. They cleaned up our property perfectly at the conclusion of the project. I highly recommend this foundation repair company.
Tech was on time completed the repair as necessary, and the experience was great.
We recently had KC Waterproofing out at our home in North Kansas City, and I cannot say enough great things about Ryan Marshall and his team (Austin & Jacob). They worked at our property over the week of July 17/2025 - and absolutely blew us away with their professionalism, work ethic, and transparency.

Ryan took the time to thoroughly explain the problems we were facing, what caused them, and exactly how they were going to fix them. His honesty and willingness to go the extra mile truly set him apart.

Ryan and his assistant worked hard, were respectful of our home, and made sure everything was done right the first time. It's rare these days to find that level of care and craftsmanship. Because of professionals like Ryan, we’ll continue to turn to KC Waterproofing for future needs.

Highly recommend this company—especially if you get the chance to work with Ryan and his crew! When it comes to foundation issues we will always recommend KC Waterproofing. They have been in the business, are trusted, and will do the job correctly.
I recommend KC Waterproofing. They kept me informed as the job went along. They started and ended as they had said. Cleaned up each day before they left. Price was fair and they were able to stabilize walls without excavation which was good so I didn’t have to deal with landscaping. Fran and Julian were professional and easy to work with.
Inspection completed throughly and efficiently. Technician was professional and pleasant.
Mario did great work on our house. Answered any questions we had, was efficient, and courteous. Would definitely recommend.
The workers got the work done on time and as described.
Mario was great. Real personable. He was able to explain the process and how it works. Thank you again Mario.