Furnace Repair in Charleston, SC
Fast, Straightforward Furnace Repair From a Local Charleston Team
Carney & Son 72 Degrees provides local, family-owned heating and air service across Charleston and the surrounding areas, backed by over 40 years of experience. If your home has uneven heat, strange noises, frequent cycling, or your furnace won’t start, we’ll diagnose the issue and recommend the best next step. Appointments are scheduled within 24 hours. Our technicians are licensed, bonded, and insured, and we walk you through your options and pricing before work begins.
On this page, you’ll find common furnace issues we fix, what to watch for, what to expect during your visit, and how our maintenance membership helps you stay comfortable and safe. Call us to book immediate service or request an on-site estimate.
Furnace Systems and Parts We Service in Charleston
We repair and maintain a wide range of residential furnaces, and we will confirm the right solution after we inspect your system.
- Gas And Electric Furnaces (Blower Motors, Ignition Issues, Thermostats, Gas Valves)
- Ignitors, Pilot Assemblies, Flame Sensors, Burners
- Control Boards And Limit Switches
- Blower Motors, Belts, Bearings, And Fan Assemblies
- Thermostat Troubleshooting And Basic Thermostat Replacement
- Airflow And Duct-Related Troubleshooting When It Affects Furnace Comfort And Performance
If you’re unsure whether your system is something we service, we’ll help you identify it and confirm the right solution for your home. If you’re unsure which system you have, we’ll identify it during our inspection and explain your options before any repair work begins.
What to Expect During Your Furnace Repair Appointment
When you book with Carney and Son, we make the visit predictable and transparent.
- Scheduling & Arrival: We schedule your visit as quickly as possible and confirm the appointment details ahead of time.
- Identification & Walk-Through: Our tech introduces themself, checks your access, and reviews the symptoms you’ve reported.
- Initial Safety & Visual Checks: We inspect key safety items like venting and filtration before we begin deeper testing.
- Diagnostics: We run targeted tests (ignition, gas pressure or electrical checks, airflow measurements) to isolate the issue.
- Clear Next Steps: We explain what we found, review options, and get your approval before moving forward.
- Work, Test & Clean Up: Repairs are completed, system performance is verified, and we leave clear documentation of the work performed and any applicable warranties.
- Aftercare: We’ll tell you simple follow-up steps and how to reach us for questions.
If you have it, bring your thermostat model information and your last service date so we can move faster.
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Professional AC Installation Crew
If you are ready to install a new air conditioner in your home or would like to discuss your options, we are ready to help. Our team of technicians is looking forward to helping you with AC replacement in Charleston. We can also help you choose the right type of unit for your home if you are uncertain which model is the best option.
Furnace Repair Cost and Estimate Expectations in Charleston
Costs and timelines vary by the issue, your system type, and parts availability, and we will explain pricing before work begins.
Typical Job Categories
- Diagnostic Fee: Diagnostic fees vary by situation, and we’ll explain the cost before proceeding.
- Minor Repairs: After diagnostics, we will give you clear options and pricing based on what your system needs.
- Common Part Replacements: We will confirm the part, availability, and turnaround time once we diagnose the issue.
- Major Components: If a major component is involved, we will explain repair versus replacement options and what makes the most sense for comfort, safety, and long term value.
- Furnace Replacement: We provide free in-home replacement estimates and will walk you through the right system for your home.
What Affects Price & Timing
- Age and accessibility of the unit, OEM part availability, gas vs. electric systems, permits for replacements, and Charleston-area labor rates.
How To Avoid Surprise Costs
- Ask for a written parts & labor breakdown, request photos of failed parts, and confirm warranties up front.
We’ll explain your options clearly and review pricing before work begins, so there are no surprises.
Furnace Maintenance and Preferred Comfort Club Membership Benefits
We recommend seasonal tune-ups to keep your furnace safe and efficient. Our maintenance visits include inspection of combustion components, filter check/replacement, airflow testing, thermostat calibration, and a safety check of vents and flues.
Membership Perks Include:
- A seasonal system evaluation twice per year that includes washing the condensing coil and condensate drain clearing.
- Discounted service fees.
- Discounts on repairs are listed in our straightforward pricing guide.
- A 5% discount on system replacements and upgrades.
Energy and Cost Benefits
- A seasonal tune-up helps your system run more efficiently, improves reliability, and supports safe operation.
- We’ll share simple steps that can help your system run better between visits, like staying on top of filter changes and keeping vents clear.
Charleston Furnace Safety, Code Considerations, and Local Home Factors
Charleston homes have a few local factors we watch for during inspections.
Coastal Corrosion & Humidity
- Salt air and high humidity can accelerate corrosion on controls, burners, and external vents. We check for rusted connections and recommend corrosion-resistant parts when appropriate.
Older Homes, Crawlspaces & Clearances
- Many older Charleston houses have tight access or low crawlspaces. Limited access can increase labor time or require the temporary removal of panels. We’ll tell you up front if extra access work or sealing is needed.
Condensate and High-Efficiency Units
- High-efficiency furnaces produce condensate that must drain correctly; in low-lying or below-grade installations, we may recommend a condensate pump or repositioning.
Permits, Inspections & Safety Basics
- Major replacements may require permits or inspections, and we will walk you through the requirements for your project.
- Carbon Monoxide Safety: Install CO alarms on every level of your home and outside sleeping areas, and follow the manufacturer’s placement instructions. If you smell gas or a CO alarm sounds, evacuate immediately, call 911, then call us.
We’ll point out any code or safety issues we find and give clear, written options so you can decide with confidence.
Schedule Furnace Repair in Charleston Within 24 Hours
When your furnace won’t cooperate, Carney and Son is ready to help. Call us at 843-867-2412 or request an appointment online, and we will schedule your visit within 24 hours. We provide upfront pricing before work begins. We stand behind our work with a 2-year labor warranty, and manufacturer warranty coverage may apply depending on the equipment and warranty terms. Have your thermostat model and last service date handy to speed the visit. If you smell gas or a CO alarm sounds, evacuate, call 911, then call us, and we will schedule service as quickly as possible.
Areas We Serve:
- Charleston, SC
- Goose Creek, SC
- James Island, SC
- Johns Island, SC
- Kiawah Island, SC
- Mount Pleasant, SC
- North Charleston, SC
- Seabrook Island, SC
- Sullivan’s Island, SC
- Summerville, SC
