Expert Furnace Repair for Charleston Homeowners

Fix-it Air Conditioning, Plumbing & Heating provides professional furnace repair services throughout Charleston, SC and the surrounding Lowcountry. Our certified HVAC technicians specialize in diagnosing and repairing all types of heating systems, from routine maintenance to emergency repairs.

Licensed & Background Checked Technicians

24/7 Furnace Repair

Heating emergencies don't follow a schedule. That's why our furnace repair team is available around the clock, including weekends and holidays. When Charleston temperatures drop unexpectedly, we're ready to restore your home's warmth and comfort.

No Nonsense, Flat-Rate Pricing

No one wants surprise charges during a heating emergency. Our technicians provide clear, upfront pricing before any work begins. We explain all available repair options in simple terms, allowing you to make informed decisions about your home's heating system without pressure or hidden fees.

Outstanding Customer Reviews

Thousands of Charleston families have trusted us with their furnace repairs, leaving 5-star reviews that speak to our commitment to excellence. Beyond just fixing immediate problems, we identify underlying issues to prevent future breakdowns and extend your heating system's lifespan.

Local Charleston Business Values

As a locally-owned Charleston business, we understand the unique heating needs of Lowcountry homes. We treat every customer like family, providing personalized service that reflects our commitment to the Charleston community.

100% Satisfaction Guarantee

We stand behind every furnace repair with our complete satisfaction guarantee. If you're not happy with our work, we'll return to make it right at no additional cost. Your family's comfort and safety are our top priorities.

Preventive Maintenance Focus
We believe in proactive heating system care to prevent costly breakdowns. Our comprehensive maintenance services help Charleston homeowners avoid emergency repairs while maximizing energy efficiency and system longevity.

24/7 Emergency Service

Licensed & insured — 100% Satisfaction guaranteed.

Complete Charleston Furnace Repair

Fix-it Air Conditioning, Plumbing & Heating offers comprehensive heating system repair services for Charleston area homes. Our experienced technicians handle everything from minor adjustments to major component replacements.

  • Heat Exchanger Repair and Replacement
  • Ignition System Diagnostics and Repair
  • Blower Motor and Fan Assembly Service
  • Gas Valve Repair and Replacement
  • Electrical Component Diagnostics
  • Control Board Replacement
  • Thermostat Repair and Calibration
  • Ductwork Inspection and Repair
  • Safety System Testing

Signs Your Charleston Furnace Needs Repair

Your heating system typically shows warning signs before a complete breakdown. Recognizing these early indicators can save you from uncomfortable Charleston nights, higher energy bills, and more expensive emergency repairs.

The Benefits of Early Detection

Recognizing these warning signs early can save you thousands in emergency heating repairs and prevent complete breakdowns. Fixing small issues right away can help extend the lifespan of your furnace, maintain energy efficiency, and ensure your family stays comfortable during the coldest winter months. By staying alert to these signs and working with qualified HVAC professionals, you protect your investment while avoiding costly replacements and uncomfortable situations.

Inadequate Heating Performance

  • Furnace runs continuously but can't reach thermostat setting
  • Weak or insufficient airflow from vents
  • Cold spots throughout your Charleston home
  • System takes much longer than normal to heat your home
  • Rooms that never seem to get warm enough

System Won't Start

  • Furnace completely unresponsive
  • Frequent circuit breaker trips
  • Thermostat display issues or unresponsive controls
  • Lights dimming when heating system attempts to start

Short Cycling Issues

  • Furnace turns on and off repeatedly in short intervals
  • System won't run for normal heating cycles
  • Constant starting and stopping throughout the day

Unusual Sounds and Odors

Strange noises like grinding, squealing, rattling, or banging often indicate mechanical problems requiring immediate attention. Similarly, unusual odors such as gas smells, burning odors, or musty smells could signal gas leaks, overheating components, or indoor air quality issues.

Pilot Light Problems

A properly functioning gas furnace should maintain a steady blue flame. If you notice a yellow or flickering flame, or detect gas odors around your heating system, turn off your furnace immediately and call for emergency service. These symptoms can indicate dangerous conditions like carbon monoxide risks.

Rising Energy Bills

Unexplained increases in your Charleston utility bills often indicate heating system inefficiency, requiring professional diagnosis and repair.

“Fix it 24/7, in my opinion is top shelf. Their people are always informed, educated, & ready to get the job done with smiles on their faces. I have not had a bad technician come out in the 8 years we have worked with 24/7.”

Mike Hougland

“I just had the most fabulous experience with a phenomenal group of two gentlemen, who came evaluated and fixed my air conditioner, heater combo heat pump. They could not have been more professional, informative and detailed in their work.”

David McCarrus

“Fix-It 24/7 is a truly professional and reliable HVAC company with high-level technicians. From install to maintenance, my experience has been excellent. Devin, the technician who provides our maintenance service, is knowledgeable, motivated, and thorough. I know my HVAC system is in good hands when he is on the scene.”

Mark Springer

Ask About our Green Club

Save with our Charleston Green Club Membership & Maintenance Plan

House in Trouble? Call the Green Bubble!

Schedule Your Charleston Furnace Repair Today

Don't let heating problems leave your family uncomfortable during Charleston's cooler weather. Schedule your furnace repair service with Fix-it Air Conditioning, Plumbing & Heating, the Lowcountry's most trusted HVAC company.

✓ $0 Service Call for Repairs  

✓ Over 1,000 5-Star Reviews  

✓ Same-Day Service Available  

✓ Serving Charleston and the Charleston Metro Area

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FAQs

Why is my furnace running but not producing heat?
Several issues can cause this problem, including faulty ignition systems, clogged air filters, malfunctioning gas valves, heat exchanger problems, or thermostat issues. Our Charleston technicians can quickly diagnose the specific cause and recommend the most effective repair solution.
How do you repair a furnace that won't heat my Charleston home?
Our repair process begins with a comprehensive diagnostic evaluation to identify the root cause. Depending on the issue, solutions may include ignition system repairs, gas valve replacement, heat exchanger service, filter replacement, or thermostat recalibration. Each repair is customized to your specific heating system.
Should I repair or replace my Charleston furnace?
The decision depends on several factors including your unit's age, repair costs versus replacement costs, energy efficiency, and maintenance history. Generally, if your furnace is under 15 years old and repair costs are less than 30% of replacement cost, repair is usually the economical choice. Our technicians provide honest assessments to help you make the best decision for your Charleston home.
What are the most common furnace problems in Charleston?
Common furnace issues we see in Charleston include ignition system failures, thermostat malfunctions, dirty air filters, blower motor problems, and gas valve issues. Our diagnostic process identifies the specific problem with your system to ensure repairs address the actual issue, not just symptoms.
How can Charleston homeowners prevent furnace problems?
Regular professional maintenance is the best prevention strategy. Our annual heating system tune-ups clean essential components, check gas connections, test safety systems, and identify minor issues before they become expensive repairs. Our maintenance programs provide scheduled service and repair discounts to keep your Charleston home's heating system running efficiently.