When your furnace stops working—or starts showing signs that something's not right—you need fast, professional help. At J.C.'s Heating & Air, we provide trusted furnace repair and maintenance in Knoxville, TN, backed by over 35 years of experience and a commitment to your comfort and safety.
Whether your system is making strange noises, struggling to keep your home warm, or not turning on at all, our licensed technicians are ready to diagnose the issue and get your furnace back in working order. We service all major furnace brands and offer same-day repairs, seasonal maintenance, and custom care plans for homeowners throughout Knoxville, Maryville, Clinton, Oak Ridge, Farragut, and Lenoir City.
Our goal is simple: maximize your system's performance and reliability while minimizing your long-term repair costs.
Stay Connected
Follow Us
Furnace issues are more than just inconvenient—they can also pose safety risks or lead to energy waste. Here are some of the most common reasons homeowners call us for furnace repair in Knoxville:
The furnace won't turn on at all
Blowing cold or lukewarm air
Frequent cycling (on/off)
Thermostat not responding or inaccurate
Strange noises like banging, squealing, or rattling
Burning or musty smells when the system runs
Weak or uneven airflow through vents
Pilot light won't stay lit (for gas furnaces) or ignition system failure (for modern electronic ignitions)
If you notice any of these symptoms, don't ignore them—catching and correcting small issues early helps avoid more expensive damage later.
Schedule Furnace Repair NowWhen you call J.C.'s Heating & Air, you can expect prompt, honest service every time. We'll thoroughly inspect your system, explain the issue clearly, and provide upfront pricing before any work begins.
We arrive with fully stocked service vehicles, which means we can complete most repairs on the spot. All work is backed by our satisfaction guarantee and performed by licensed, insured HVAC professionals.
A broken furnace on a cold winter night can be more than just uncomfortable—it can be dangerous. That's why we offer limited emergency furnace repair in Knoxville and surrounding areas. If your system fails after hours, give us a call—we'll do our best to dispatch a technician and restore your heat quickly.
The best way to prevent furnace breakdowns? Routine maintenance. Our seasonal furnace tune-ups are designed to keep your system running smoothly, reduce your energy bills, and catch issues before they become costly problems.
We recommend scheduling a furnace tune-up every fall before heating season begins—especially in Knoxville's unpredictable winter climate.
Routine maintenance doesn't just prevent breakdowns—it also protects your investment and improves your home's comfort. Benefits include:
Lower energy bills from improved efficiency
Reduced risk of emergency repairs
Longer system lifespan
Improved airflow and indoor air quality
Compliance with manufacturer warranty requirements
Safer operation with carbon monoxide checks
Regular service keeps your furnace working the way it should—and ensures you're not left in the cold when it matters most.
To make maintenance simple and affordable, we offer residential HVAC service plans that include your annual furnace tune-up, plus additional benefits:
Priority scheduling—even during peak season
Discounts on repairs and service calls
Two scheduled maintenance visits per year (heating & cooling)
Full performance reports with recommendations
Our plans are ideal for busy homeowners who want to stay proactive and avoid surprise repair costs.
No matter what make or model you own, our technicians have the tools and training to diagnose and fix it. We provide furnace repair and maintenance for:
We service Daikin, Armstrong Air, Ducane, and American Standard systems.
We service Trane, Carrier, Lennox, and Rheem systems.
We service Goodman and many other HVAC brands found in Knoxville homes.
Whether you have a gas furnace, electric furnace, or packaged heating unit, we'll keep it running safely and efficiently.
We repair both gas and electric furnaces in Knoxville, and each type has its own set of common issues.
Gas Furnace Repairs Often Include:
Electric Furnace Repairs Often Include:
Whichever type you have, we'll deliver safe, certified repairs that restore full system functionality.
One of the biggest risks of neglected furnace maintenance is carbon monoxide exposure, especially with gas units. As part of every tune-up and repair, we check for:
We'll test your system with professional-grade equipment and alert you to any safety hazards immediately. Your family's safety is always our top priority.
While many issues can be repaired, there are times when furnace replacement is the smarter long-term option. We'll recommend a replacement if:
If a replacement is the best path forward, we'll apply your diagnostic fee toward your new installation and provide financing options to fit your budget.
Why do Knoxville homeowners choose J.C.'s Heating & Air for their furnace service?
We're not here to upsell—we're here to help. Our mission is to deliver reliable, affordable service with a focus on long-term comfort and customer satisfaction.
We provide expert furnace repair and maintenance across:
Wherever you are in the greater Knoxville area, our team is ready to restore your heat—and your peace of mind.
With so many HVAC companies in Knoxville, why do homeowners and businesses continue to trust J.C.'s Heating & Air?
Backed by a team of certified and highly skilled technicians, we’ve served Knoxville and the surrounding areas since 2001 with more than 35 years of experience behind us.
We install and service Armstrong, Ducane, Daikin, and American Standard systems. Our services include custom metal fabrication, duct cleaning, and indoor air quality solutions.
We are an A+ BBB Accredited business and a Daikin Elite Dealer. Our work is backed by a customer satisfaction guarantee.
We always provide honest, upfront pricing with no hidden fees. We also have same-day and emergency service availability so you never have to worry about an unexpected outage.
Contact us today to schedule your heating and air conditioning service in Knoxville, TN.
Prevent costly repairs and ensure your heating and cooling system runs efficiently year-round with our residential HVAC maintenance plans. At J.C.'s Heating & Air, we offer comprehensive tune-ups and seasonal check-ups designed to extend the lifespan of your HVAC system while lowering energy bills. Benefits of our maintenance plan include:
Our maintenance plan members enjoy priority scheduling for repairs and service calls.
We perform regular system inspections to catch issues before they turn into costly repairs.
Routine maintenance improves efficiency for lower energy bills and reduced wear and tear.
We offer discounted repairs and service rates for maintenance plan members.
Sign up for a J.C.'s Heating & Air maintenance plan today and enjoy peace of mind knowing your HVAC system is always running at peak performance.
Find Your Maintenance PlanJ.C.'s Heating & Air proudly serves Knoxville and surrounding areas, including:
If you’re looking for professional HVAC services in Knoxville, TN, and beyond, our team is ready to help.
At J.C.'s Heating & Air, we understand that homeowners and businesses have many questions about furnace repair and maintenance. Below, we've compiled some of the most frequently asked questions about furnace repair, maintenance, and service to help you make informed decisions.
If your furnace is blowing cold air, cycling frequently, making strange noises, or driving up your utility bills, it likely needs attention. Other signs include a yellow pilot light (for gas units), burning smells, or poor airflow. If your system struggles to maintain comfort, call for service before the problem worsens.
Our comprehensive furnace tune-ups include:
This process helps ensure safe, reliable heating throughout the season.
We recommend annual furnace maintenance, ideally in the fall before colder weather sets in. Regular tune-ups help catch small issues early, prevent breakdowns, and improve efficiency during Knoxville's winter months.
Yes. Just like a car needs regular oil changes, your furnace needs periodic maintenance. Yearly service keeps your system operating safely and efficiently and is often required to maintain the manufacturer's warranty.
Costs vary depending on the issue. Simple repairs like replacing a thermostat or flame sensor are usually affordable, while more complex problems like motor failure or heat exchanger damage may be more costly. We always provide upfront pricing before any work begins.
We repair both gas and electric furnaces, as well as packaged heating units and hybrid systems. Our technicians work with all major brands, including:
Yes. We offer limited emergency repair services for urgent situations. If your furnace breaks down unexpectedly during extreme weather, call us right away—we'll do our best to dispatch a technician promptly.
A cracked heat exchanger is a serious issue in gas furnaces. It can leak carbon monoxide, a colorless and odorless gas that's extremely dangerous. If we detect this problem during service, we'll shut down the unit and recommend replacement for your safety.
The best way to avoid costly breakdowns is through routine maintenance. Annual tune-ups, filter changes, and system inspections help extend your furnace's life and reduce the risk of emergency repairs.
Absolutely. Our residential maintenance plans include:
Our plans help you stay on top of system care without the hassle of remembering service dates.
We proudly serve:
If you're in East Tennessee, our expert technicians are just a call away.
Don't let a faulty furnace leave your home cold and uncomfortable—turn to J.C.'s Heating & Air for fast, reliable furnace repair and maintenance in Knoxville, TN. With over 35 years of local HVAC experience, we know what it takes to restore heat quickly, safely, and affordably for homeowners across East Tennessee.
Whether your system is making strange noises, struggling to keep up with winter demand, or just overdue for a seasonal check-up, we're here to help. Our licensed, insured technicians are trained to service all major furnace brands, including Daikin, Armstrong, Ducane, American Standard, Trane, and more.
From pilot light issues to motor failures and everything in between, our team uses advanced diagnostic tools and fully stocked service vehicles to handle most repairs on the spot. And because we value transparency, you'll always get clear, upfront pricing—with no surprises and no pushy sales tactics.
Looking to avoid emergency repairs altogether? Our detailed furnace tune-ups are designed to keep your system running at peak performance. We inspect your heat exchanger, clean burners and sensors, test safety controls, and verify efficient airflow—all so your furnace works harder, lasts longer, and costs you less.
Want peace of mind year-round? Ask about our residential maintenance plans, which include:
It's the easiest way to protect your investment and ensure your home stays warm—even on Knoxville's coldest nights.
We also offer limited emergency furnace repair services for those moments when comfort can't wait. If your heat goes out during a frigid East Tennessee night, give us a call—we'll do everything we can to get you back up and running fast.
We proudly serve homeowners throughout Knoxville, Maryville, Oak Ridge, Clinton, Farragut, and Lenoir City with high-quality repairs, honest advice, and unmatched customer care. As a Daikin Elite Dealer and BBB A+ accredited company, your comfort and safety are always our top priority.
Call J.C.'s Heating & Air today or book your service online to schedule your furnace repair or tune-up in Knoxville. Let's get started and make sure your home stays warm, safe, and energy-efficient all winter long!
© Red Barn Media Group 2025
