Air Conditioning Repair in Knoxville, TN

Has your air conditioner stopped working in the heat of summer? Contact the AC experts at Pipe Wrench Plumbing, Heating & Cooling for immediate service. We provide best-in-class repairs, replacements, and installations for all makes and models of air conditioners and cooling systems, including single- or multi-unit central air and ductless mini-splits.

Contact Pipe Wrench Plumbing, Heating & Cooling to schedule AC repairs in Knoxville, TN, today.

Our AC Repairs

At Pipe Wrench Plumbing, Heating & Cooling, our certified HVAC technicians provide a full range of AC repairs for homes and businesses and will thoroughly assess the condition of your system and determine the most effective solution for your needs. 

Our technicians will thoroughly inspect your AC and assess the cause of the malfunction. Once identified, we’ll share our findings with you and recommend the most effective solution for restoring the operation of your cooling system.

From our initial inspection to the completion of the repairs, you can rely on our team for expert recommendations and reliable work and to maintain a clean work environment. We adhere to strict safety and quality standards and will always provide the top-quality service and solutions you deserve. 

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Signs You Need AC System Repair

Sudden cooling system failure is often rare. It’s more common for your system to show some signs before it completely shuts down. It’s important to pay close attention to the operation of your air conditioner because prompt repairs can protect your cooling system from damage.

If you detect any of these issues, we recommend scheduling a service as soon as possible:

  • Weakened or diminished airflow
  • Diminished cooling capacity or inconsistent temperatures
  • Leaking refrigerant (different than normal condensation)
  • Warm air blowing through registers
  • Poor indoor air quality
  • Odd noises/odors (screeching, grinding, banging, or moldy, mildewy, burning odors)
  • Short-cycling
  • Constant buildup of moisture and increased humidity in your home
  • Unresponsive to thermostat controls
  • Increased utility bills

Do any of these AC issues look or sound familiar? Contact us immediately to assess the problem and have it repaired the same day. We’ll arrive at the appointed time and get to work right away.

Our technicians follow all local codes, so you don’t have to worry about recurring problems. You’ll be enjoying cool air again in no time.

Technician performing air conditioning repair

Common Causes of AC System Issues

Every AC and cooling system will eventually fail and require repairs or replacement. Most HVAC systems should be replaced every 10 to 12 years. Some of the most common causes of heating system failure we encounter include:

  • Clogged air filters and blocked ducts
  • Deficient wiring
  • Thermostat failure
  • Defective blower motor
  • Clogged ignition
  • Blocked fuel supply
  • Bad fuses or breakers
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We Can Finance As Little As $1,000 0% Financing and No Payments for 12 Months, with Approved Credit

Why Choose Us?

At Pipe Wrench Plumbing, Heating & Cooling, we’re committed to improving your comfort. We use only the finest products and materials when servicing your HVAC systems. Our locally owned and operated company will always go the extra mile to help you find the cost-effective solutions to enjoy superior energy efficiency and system performance. 

As one of the region’s leading HVAC service providers, our award-winning team will always provide superior service and solutions. We’ve been voted one of “Knoxville’s Best HVAC Companies” seven years in a row. We maintain an A+ rating with the BBB and guarantee your satisfaction with our services.

With every visit, we offer:

  • Free on-site estimates for replacement
  • Free second opinions on repairs and replacements
  • 0% financing on major HVAC brands you know and trust
  • Ten-year warranty on parts and labor, so you won’t spend an extra cent on unexpected repairs. Ask for details!

For top-quality AC and cooling system repairs in Knoxville, contact Pipe Wrench Plumbing, Heating & Cooling to schedule a service.

Frequently Asked Questions

How important is sizing a new AC system?

Proper sizing is essential for ensuring energy-efficient operation and system performance. If the system is too small, it will struggle to deliver the comfort you desire. This will increase wear and tear and result in premature system failure.

Conversely, if the unit is too large, it will short-cycle, you’ll lose out on any energy savings, and the unit will cost you more to operate than an appropriately sized system.

Will regular maintenance help reduce repair frequency?

Absolutely! Staying on top of maintenance will improve performance, enhance energy efficiency, and help extend the serviceable lifespan of your HVAC system. It’s a cost-effective investment in comfort, safety, and long-term savings.

Should I replace a faltering AC system?

All ACs will eventually malfunction and fail. Most HVAC systems should be replaced every 10 to 12 years, or if required repairs exceed 50% of the replacement value. If you have an older system whose performance is not improved after maintenance, it may be time to replace your system with a new, energy-efficient model.

Our HVAC technicians can thoroughly assess your system’s condition and help determine whether further maintenance, repairs, or replacement is your best option.  

Is it safe to perform DIY air conditioner repairs?

We strongly advise against all DIY air conditioner repairs. While it’s safe to change an air filter, properly diagnosing the cause of the malfunction, sealing coolant leaks, recharging refrigerant, tightening electrical connections, or replacing components requires specialized tools and expertise. 

Why won't my air conditioner turn on or initiate operation?

If your air conditioner won’t turn on, there are several potential causes that require investigation. It’s possible that the control board has failed or the unit has somehow become disconnected from the power supply. There may also be a malfunctioning circuit breaker, damaged thermostat, or loose wiring.

Why is my air conditioner short-cycling?

A number of issues can cause short-cycling. Common causes include:

    • Refrigerant leaks/low refrigerant
    • Damaged evaporator coils
    • Dirty/clogged air filters
    • An improperly installed thermostat
    • A faulty low-pressure control switch
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Our Services


Sewer & Drain

Water Heaters

Heating & Cooling
20+Years in Business
00+ Satisfied Customers
00+ Total Reviews
4.8 Overall Rating

What Our Customers Are Saying

"Adam Bunch and Salwan were our technicians. They were very professional, courteous, thorough, and we feel they did a very good job. They were both very personable, friendly, and genuinely take pride in their profession. We feel very confident in the work that they did. We have an older home built in the mid 1980s with old, failing hex water lines along with some copper fittings. We needed new lines installed and they did a good job with it. I would recommend them to other people. In comparison, the price is more expensive than some other businesses in this area for the same work, but we feel that the guarantee that comes with Pipe Wrench work brings accountability. We will use this service again in the future."

Amy C.

"Very timely. The first time I used this service I had a thermostat replaced in my hot water heater. They were quick and professional and was fairly priced. I'm in the middle of my second experience at a relatives home for hot water heater replacement. They were able to get a tech out for evaluation the same day we called (today) about a problem and have scheduled the replacement for the next day. The tech was polite, professional and advised us of all our options in a way that was easily understood. I highly recommend Pipe Wrench services."

Sasha N.

"Ryan and Tyler were fantastic! As soon as they got to our home they set expectations for all the work they were going to perform. They kept us posted on the status of the job throughout the time they were working and reviewed everything with us when the job was complete. They were professional, knowledgeable, and nice. I would highly recommend them and the team at Pipe Wrench for any plumbing needs! Although I hope we won't have to use their services again, if we ever have the need for a plumber in the future, they will be the first people we call!"

Katey M.

"They came on time with texts and calls ahead of time to ensure I knew who was coming (with a picture) and when they'd be there. Kyle was professional, personable and didn't try to sell me more than I needed. He worked with the scheduling to get me scheduled that evening, even though I couldn't be there for the install. The installation was prompt and they were clean (again with forewarning and pictures of who was coming). They are my new go to company. Thank you."

Mary W.

"Our technician showed up on time and very professional. This company never tried to take advantage of my older mom. Which some in the past have. Very thorough in explaining everything he did and the cost. They came the very next morning. My mom’s A/C had gone out the day before on a scorching hot day and week. I would highly recommend this company. Very good people."

Kay L.