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Sump Pump Repair Services in Knoxville & Maynardville

A sump pump is your basement’s first line of defense against water damage. It quietly works in the background to collect and remove excess water until something goes wrong. At Thomas Waterproofing, we provide fast, professional sump pump repair services. Serving Knoxville, Maynardville, Lenoir City,  Andersonville, Alcoa, and surrounding areas, we keep your home protected with reliable waterproofing solutions.

Whether your system is cycling too often, failing to turn on, or just not keeping up, our expert team will solve the problem and fix it with long-lasting solutions. Contact us for quick inspections, honest recommendations, and affordable sump pump repairs according to your needs.

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Common Signs You Need Sump Pump Repair

Not sure if your sump pump needs service? If you've noticed any of these issues, call Thomas Waterproofing for an inspection before it becomes a major repair. Watch for these warning signs:

  • Frequent cycling on and off
  • The pump fails to turn on
  • No water is being discharged
  • Humming, buzzing, or grinding noises
  • Water is pooling around the sump pit
  • Foul odors coming from the pit
  • Rust, corrosion, or visible damage
  • Increased humidity or dampness

Complete Sump Pump Repair Solutions

We offer a full range of sump pump repair services designed to restore performance and prevent future problems.

  • Sump Pit Repair

    If your sump pit is cracked, blocked, or poorly installed, it may flood your basement. We fix or replace sump pits, clear debris, and ensure proper drainage. Our team inspects the entire setup for efficiency. A healthy sump pit keeps your pump working correctly and helps prevent water damage during heavy rains.

  • Power Supply Repairs
    Electrical problems can shut down your sump pump when you need it most. We troubleshoot faulty wiring, test outlets, and fix damaged power lines. If your breaker trips or connections are loose, we restore power fast. Our repairs help ensure your pump works reliably in storms and high-water conditions.
  • Battery Replacement

          If the battery backup is weak or old, your pump may fail in a power outage. We check its charge, look for corrosion, and install a high-performance battery. With            reliable backup power, your pump keeps working during blackouts. This ensures your basement stays protected even when the power is out during a storm.

  • Sump Pump Replacement
    If your sump pump is over 7-10 years old or keeps breaking down, it may need a replacement. We’ll remove the old unit and install a reliable, energy-efficient model. Our team handles the entire setup, ensuring your new pump is ready to protect your home against future flooding.

Reliable Sump Pump Solutions You Can Trust


Thomas Waterproofing offers complete sump pump services to protect your basement. We install sump pumps, backup batteries, sump basins, and secondary pumps for extra safety. Our experts maintain sump pits and perform routine checkups to keep your system running properly. With professional installation and maintenance, you’ll be ready for any disaster or emergency issue. Stay ahead of water damage with our dependable sump pump services designed to give you peace of mind in any season.

Why Homeowners Trust Thomas Waterproofing

We understand how urgent sump pump repairs can be. That’s why homeowners in Knoxville, Maynardville, and surrounding areas count on us for:

  • 40+ years of experience
  •  Family-owned & operated
  • Licensed, bonded & insured
  • Honest estimates with no upselling
  • Lifetime transferable warranties
  •  Fast service & flexible schedule

Complete Waterproofing Protection  With Thomas Waterproofing

While we specialize in sump pump repair, we also offer a wide range of basement and crawl space services to protect your home long-term. we offer -

Call Now for Sump Pump Repair Services


Protect your home from unexpected water intrusion and costly damage. Thomas Waterproofing is here with trusted service, expert repairs, and long-term protection. We offer free estimates, honest service, and solutions that last. We don't just fix problems, we protect your entire basement and foundation. Call us at 865-459-4949 or fill out our online form to schedule your inspection.

Don't wait until water damage strikes. Let us create a full protection plan for your home, starting with a reliable sump pump system.

 Sump Pump Repair Services Frequently Asked Questions (FAQs)

 What happens if my sump pump runs constantly?
A pump that runs nonstop may be undersized, have a stuck switch, or face drainage issues. We can inspect the system, fix mechanical problems, or upgrade your setup for proper operation.

What is the average lifespan of a sump pump?
Most sump pumps typically last between 7 to 10 years, though this can vary. Factors like usage frequency, maintenance, and the quality of the unit all influence its operational lifespan

Is routine maintenance necessary if my sump pump is working fine?
Yes. Preventive maintenance helps extend the lifespan of your pump and prevents costly breakdowns. We recommend annual inspections to check for blockages, power issues, and battery health.