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Furnace Repair in Charleston, SC

Providing “Comfort for Life” since 1972

Family-Owned

& Operated Since 1972

Third-Generation

Charleston Company

Trane

Comfort Specialist

Contact Us

When your furnace stops working right, you need it fixed fast and fixed correctly. Smoak’s Comfort Control has been the name Charleston families trust for furnace repair since 1972. As a third-generation, family-owned business, we know what it takes to keep your home warm through those chilly Lowcountry mornings, and our NATE-certified technicians are ready to help whenever you need us.

Warning Signs Your Furnace Needs Repair

Furnaces usually give you a heads-up before they quit completely. Knowing what to look for can save you from a cold house and a bigger repair bill down the road.

  • Strange banging or rattling noises
  • Weak or uneven airflow
  • Frequent cycling on and off
  • Rising energy bills
  • Burning or musty smells
  • Pilot light burning yellow
  • Thermostat not responding correctly

Our Services

What Your Neighbors Are Saying About Us

Molly S.
★★★★★
Could not be happier with my experience with Smoak's. Rob went above and beyond to repair my HVAC system quickly and at a great price. He's trustworthy, reliable, and explained everything along the way. I *highly* recommend.
Jeff S.
★★★★★
Smoaks was great! Professional, on time and thorough. The noise we questioned was absent at visit but they assured us if it comes back take a video so they can hear it. They checked several possibilities and gave tips.Since we are under warranty call back with any problems at any time. Joey was really great and Cole made a great partner. Good job guys , thank you!
Jeffrey D.
★★★★★
Zach from Smoak’s Comfort Control conducted the semi-annual maintenance on all of our systems. We appreciate the fact that he took his time to do the work, and did not rush the process. Zach was very diligent and detail-oriented. He is an extremely nice and courteous person who respected our house when doing his work. Very happy with him and Smoak’s!
Tiffany B.
★★★★★
Annual inspection. Tech identified a potential issue and scope of work. Costs provided in quote. SMOAK’s (as usual) does exceptional work. Always honest, dependable, productive and professional technicians. Well done SMOAK’s! Zach was a great tech! Keep up the good work.
R.H.
★★★★★
Al our technician was fantastic. He was extremely knowledgeable, efficient, and honest. We truly had a great experience with Smoaks installing our new hot water heater.
Maeve M.
★★★★★
We used Smoak’s to upgrade the plumbing in the entire house. From the drywall cuts to the valve work everything way excellent, tidy, and efficient! John was attentive and beyond knowledgeable, helping us to fully understand our system. His work reflected attention to detail and mastery of his trade.
Christopher M.
★★★★★
Replacement Package unit installed yesterday (2025-02-11). Josh Roper did a great job on my quote, his knowledge and communication made it easy to go with Smoak's. Quentin did a fantastic job with the install. He is knowledgeable and professional! Highly recommended!
Steve B.
★★★★★
Al Ahner with Smoak’s was a welcome professional to our home. He not only addressed my plumbing needs during his visit, he provided a recommendation related to my gas lantern settings that I greatly appreciate. Al took the time to listen to my needs and provide really sound advice to me.
James V.
★★★★★
Javon Jones performed our prevented maint check from Smoaks Heating and AC. Javon was on time, professional, and did his checks in a deliberate fashion. He ended is maint check by reviewing his findings and recommendations with me. He is exactly what you want as Technician! I will request him again next visit.
Georges K.
★★★★★
Smoak’s Comfort Control did an amazing job with our AC install. They were super responsive and easy to work with, and the communication was great every step of the way. The team was organized, took care of everything, and the quality of their work really shows. We’re extremely happy with the whole experience and wouldn’t hesitate to recommend them to anyone.

Furnace Problems We Fix Most Often

Charleston’s mild but humid winters can be tough on furnace systems, especially units that sit unused for most of the year. When temperatures do drop, that sudden demand can expose issues that have been building quietly for months.

Our team regularly handles worn-out ignitors, clogged filters, and thermostat malfunctions that keep a furnace from cycling properly. We also see a lot of blower motor issues, which often show up as weak airflow or unusual noise coming from the unit. Humidity in our area can contribute to rust and corrosion on internal components over time, so we pay close attention to those parts during every furnace repair in Charleston, SC, that we perform.

Electrical connections, flame sensors, and heat exchangers are other common trouble spots. Left unaddressed, these issues can lead to inconsistent heating or even safety concerns. Our technicians diagnose the root cause rather than just patching symptoms, so you get a repair that actually lasts. 

Our Furnace Repair Services

Smoak’s Comfort Control offers complete furnace repair for homes throughout the Charleston area. We work on all major makes and models, and as a Trane Comfort Specialist, we bring extra expertise when it comes to Trane systems specifically.

Every repair visit starts with a full diagnostic to pinpoint exactly what is going on with your system. From there, our technicians walk you through the issue in plain language, explain your repair options, and get to work once you give the go-ahead. We carry many common parts on our trucks, which means most furnace repair in Charleston, SC, jobs can be completed in a single visit.

We also check overall system performance while we’re there, since a furnace repair is a good opportunity to catch small issues before they turn into bigger ones. Our goal is always a lasting fix, not a quick patch that leaves you calling again next month.

24/7 Emergency Furnace Repair

A furnace breakdown does not wait for regular business hours, and neither do we. Smoak’s Comfort Control offers 24/7 emergency furnace repair for homeowners across Charleston, so you are never stuck waiting out in the cold overnight.

Our on-call technicians arrive ready to diagnose and repair most issues on the spot. We know how important it is to get your heat back up and running quickly, especially with young kids, older family members, or pets in the house. When you need emergency furnace repair, one call gets you a real person and a technician on the way.

Why Charleston Homeowners Trust Smoak's Comfort Control

Charleston families have relied on Smoak’s Comfort Control for generations, and there are a few reasons our name keeps coming up.

  • Third-generation, family-owned business since 1972
  • NATE-certified technicians on every job
  • A+ BBB rating and award-winning service
  • 24/7 emergency availability
  • Charleston’s oldest Trane dealer
  • Independently owned, not backed by private equity
  • Honest pricing with financing options available

Frequently Asked Questions

How much does furnace repair cost in Charleston, SC?
Cost depends on the issue, but most repairs range from a simple fix to a more involved part replacement. We always provide upfront pricing before starting any work.

Most repairs are completed in a single visit, often within one to two hours, depending on the issue and part availability.

Yes. Charleston’s high humidity can contribute to rust, corrosion, and electrical issues over time, which is why regular maintenance matters even in a mild climate.

Yes, Smoak’s Comfort Control provides 24/7 emergency furnace repair, so help is available any time your furnace goes down.

If your furnace is under 15 years old and the repair cost is reasonable, repair is usually the better option. Our technicians will give you an honest recommendation based on your system’s condition.