Serving Sullivans Island, SC and surrounding areas
Approved
In business since 1982
Free estimates
Offers commercial services
"They did a great job. They came quickly and fixed the problem in less than 1 hour. Very friendly."
Serving Sullivans Island, SC and surrounding areas
Approved (Corporate)
In business since 1976
Free estimates
Credit card accepted
"The technician Mike was very good, customer service skills was excellent. He was able to explain what he did with the furnace."
Serving Sullivans Island, SC and surrounding areas
Approved (Corporate)
In business since 2001
Free estimates
Emergency services offered
"Job done right and quickly. Reasonable price tom was great"
+2
Serving Sullivans Island, SC and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1976
Free estimates
Credit card accepted
"Heating and cooling biannual check up"
Serving Sullivans Island, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"The HVAC technician who came out for my central air cleaner replacement did an outstanding job. He showed up on time, explained everything clearly, and made the whole process quick and stress-free. You could tell he really knew his stuff… He also took the time to answer my questions and even gave a few helpful tips to keep the system running smoothly. It’s hard to find reliable, honest service like that these days. He didn’t try to sell me the most expensive product but the one he said was best fit for my needs. Highly recommend if you want the job done right the first time!"
+13
Serving Sullivans Island, SC and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
Fix-It 24/7 provides AC, heating, and plumbing services across the Charleston area. We focus on preventative care that extends the life of your home’s systems in a humid coastal climate. \n\nWe offer 24/7 availability with fast response times. Same-day service available, or your diagnostic is waived. \n\nWith more than 3,000 5-star reviews, homeowners trust us for reliable service. New customers can take advantage of our $39 AC deep clean.
Serving Sullivans Island, SC and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"The Technicians were punctual, professional, and courteous. Installed 4 ton 16 sear Lennox split unit AC with gas furnace in one day, and did a great job."
Serving Sullivans Island, SC and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"We has a few problems with the water pipe busting that delayed things, but Deric was good on following through."
+8
Serving Sullivans Island, SC and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Emergency services offered
"Following a biannual inspection and cleaning appointment, a need was determined to open part of the ducting from the AHU to inspect a damper. The technician opened the duct, determined a damper stem appeared to be broken resulting in the damper falling to the bottom of the duct. Carolina Custom Air has already called making an appointment the next day to reinstall the damper after repair. Great work, great company. I recommend them completely."
Serving Sullivans Island, SC and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"They showed up on time and completed the work in a timely manner to my satisfaction."
Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
From average costs to expert advice, get all the answers you need to get your job done.
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Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.