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Collage of waterproofed basement, foundation and crawl space

Basement Waterproofing, Crawl Space Solutions in Knoxville

Basement leaks, musty crawl spaces, and cracking foundations might not scream emergency, but they whisper danger. Moisture intrusion from heavy rainfall, groundwater, or structural aging can affect basements and crawl spaces. It may result in damaged walls, buckled flooring, and mold growth. What starts as a small leak can quickly spiral into a costly mess that threatens both your health and your home’s safety.

Thomas Waterproofing, with over 40 years of expertise and a reputation for excellence, is the trusted specialist proudly serving Knoxville, Powell, Farragut, Corryton, Maryville, Clinton, and surrounding areas. Call us now or click here for the best solutions to fix your issues.

865-459-4949
Water damaged foundation floor

The Hidden Dangers Lurking in Your Basement

Basement leaks and moisture issues aren’t just minor annoyances, they’re a threat to your home’s structural integrity, air quality, and value. Water intrusion breeds mold and mildew, weakens your foundation, and creates an uncomfortable living environment. Thomas Waterproofing delivers solutions that-

  • Prevents foundation damage
  • Stops mold & mildew
  • Improves indoor air quality and reduces allergies.
  • Protects belongings
  • Boosts property value
  • Avoids costly emergency repairs

Our Basement Waterproofing to Protect Your Home from Water Damage

We don’t believe in one-size-fits-all. That’s why we offer a full range of custom basement waterproofing solutions for your unique home. Thomas Waterproofing’s custom solutions include:

Working on exterior drainage

Drainage System

Our reliable drainage solutions are designed to manage water both inside and outside. By moving water away from key areas, we prevent basement leaks and long-term structural damage.

Installed dehumidifier system

Dehumidification

Installing a proper dehumidification system eliminates musty odors, controls humidity, and prevents mold growth for healthier indoor air more comfort, and long-term protection.

Clean basement floor

Basement Floor Systems

Upgrade with moisture-sealed flooring that stops water penetration, reinforced bases add stability, strengthen the foundation, and guard against long-term damage.

Waterproofed basement

Leaking Crack Repair

Stop leaks with high-quality materials and advanced methods for basement wall and floor cracks to prevent water intrusion. No more drips, no more damage.

Cracked foundation wall

Strengthen Your Home’s Foundation with Our Crawl Space Solutions

A damp crawl space leads to mold, pests, and structural damage. At Thomas Waterproofing Company, we specialize in crawl space encapsulation, waterproofing, and repair to stop moisture at its source. We transform crawl spaces into dry, clean, and energy-efficient zones.

  • Encapsulation : Seals out moisture & pests
  • Waterproofing: Stops leaks & flooding
  • Repairs: Fixes sagging floors & damaged supports
  • Dehumidification: Prevents mold & improves air quality

Stabilize Your Home With Expert Foundation Repairs

Cracks in walls, Uneven floors, and bowing basement walls aren't just eyesores. They're warning signs your foundation is crying for help. Thomas Waterproofing fixes foundation issues fast before they turn into costly disasters. We offer stable, long-lasting foundation solutions for homes and businesses. Our expert team repairs walls and floors to prevent spreading cracks and stabilizes bowed basement walls with tested correction systems. We restore crawl spaces with solid joists and beams. Sagging floors are fixed by correcting foundational shifts and applying foundation waterproofing for long-term protection against moisture.

Protect Your Space with Our Additional Services

In addition to our full range of waterproofing services, we also specialize in solutions for moisture control and reliable sump pump installations for lasting protection. We offer:

Happy family enjoying together

Moisture Control

Moisture control is key to maintaining indoor air quality and protecting structural integrity. Our expert team installs high-performance basement and crawl space dehumidifiers to prevent mold, rot, and allergens, creating a dry and healthy living space. Thus, it improves home safety and energy efficiency.

Installed sump pump

Sump Pump Services

Trust our experts to install, repair, and maintain high-capacity sump pump systems.These include battery backups, durable basins, and sump pits that handle severe water intrusion with precision. These sump pump systems reduce basement flooding and preserve the integrity of your foundation.

Thomas Waterproofing service vehicle

Why We're the Right Choice for You?

When it comes to protecting your home, experience and trust matter. Owners rely on us for our outstanding services for homes and businesses. Here’s why:

  • Licensed & Insured Company
  • Lifetime Transferrable Warranties
  • Third Generation Local Waterproofer
  • 40+ Years of Industry Experience
  • Affordable & Lasting Waterproofing Options

Count on Us to Keep Your Home Safe

Don’t wait until a leak turns into a major repair. We bring 40+ years of experience, industry-leading warranties, and honest, affordable waterproofing because your home’s protection is personal to us. Call us for more information or click here for a custom waterproofing solution for your Knoxville-area home.

865-459-4949

Frequently Asked Questions (FAQ)

What services does Thomas Waterproofing offer?
We provide basement waterproofing, crawl space encapsulation, foundation repair, sump pump installation, and moisture control for Knoxville-area homes and businesses.
Why is basement waterproofing important?
It prevents structural damage, mold growth, and protects your home’s value by keeping water out successfully.
How do I know if I need crawl space encapsulation?
If you notice musty smells, high humidity, or pest issues, encapsulation seals out moisture and improves air quality.
What foundation issues do you repair?
We fix cracked walls, uneven floors, bowing walls and provide crawl space support.

Our customers love us!

See All 29 Reviews
Customer Reviews from Knoxville and Surrounding Areas ( 5
from 12 reviews )

Completed Jobs from Knoxville

See All

August 20, 2025 | Knoxville, TN

The center of this home was sinking.  After inspecting the basement, it was found that the main girder beam was unsupported.  Thomas Waterproofing installed new steel vertical supports on concrete footers to stabilize the area.  Lifting was also perpormed to level the sagging floors.

September 11, 2025 | Knoxville, TN

Home Inspection uncovered sloping floors and areas that were not properly supported.  Thomas Waterproofing installed new steel beams and vertical supports on concrete footers to stabilize and properly support the floor system.  House was able to close after work was completed.

September 15, 2025 | Knoxville, TN

Thomas Waterproofing performed a fungal remediation, new vapor barrier, and installed an Aprilaire Dehumidifier.

September 18, 2025 | Knoxville, TN

Customer discovered fungal growth inside her living space. After an inspection and testing was completed, it was found that it was coming from the humid crawlspace which also had standing ground water creating an enviroment for fungal growth.  Thomas Waterproofing performed a fungal remediation, installed a full perimeter interior drain system with sump pump, new vapor barrier, and an Aprilaire Dehumidifier. 

September 26, 2025 | Knoxville, TN

Customer still had issues with the crawlspace after hiring multiple contractors in this industry.  Thomas Waterproofing performed a fungal remediation and floor leveling.

September 30, 2025 | Knoxville, TN

Listing agent contacted us to repair issues found on the home inspection.  Thomas Waterproofing removed the insulation, performed a fungal remediation, installed new vapor barrier, and installed an Aprilaire Dehumidifier.

Real Client Needs in Knoxville

Brian R.

I'm a realtor helping my daughter purchase a home and I called to get an estimate for a vapor barrier and dehumidifier for the crawl space (about 550 sq ft). I provided property details and was told the manager will call to set an appointment.

Jordan M.

I'm buying a house and found water in the crawl space, so I called to request an evaluation and an estimate for remediation.