Serving Johns Island, SC and surrounding areas
Approved
In business since 1983
Free estimates
Emergency services offered
"Zach arrived on time and quickly checked and repaired the Central Air Conditioning System. The system works better then it has since it was new. I plan to call Carney & Son 72 Degrees for future maintenance of our system."
+11
Serving Johns 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 Johns Island, SC and surrounding areas
Approved (Corporate)
In business since 2001
Free estimates
Emergency services offered
"Very expensive but available quickly"
+2
Serving Johns Island, SC and surrounding areas
Approved
In business since 1982
Free estimates
Offers commercial services
"Highly Recommend! Stephen and his team did a great job replacing our Heat Pump system. My wife asked a LOT of questions and 5Star answered each and every one of them without complaint."
Serving Johns Island, SC and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1976
Free estimates
Credit card accepted
"Before todayâ s visit I would be rating this company -1 star due to the lack of service and communication but after the technician Jay came out and took his time to find and fix the problem that several other techs had previously came out to fix, I am extremely happy that the problem with my AC unit is fixed. Great costumer service Jay!"
Serving Johns Island, SC and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"My HVAC unit quit working with temperatures in the 90's. I made an appointment, and Bakers updated me via text so I would know precisely when the technician would arrive. The technician was professional, courteous, and knowledgeable. He found and resolved the HVAC issue in short order. Pricing is very reasonable. I recommend this company without reservation."
Serving Johns 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 Johns Island, SC and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Speedy service, polite and through with our A/C inspection - would absolutely hire Brent and is team again."
+7
Serving Johns Island, SC and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I was surprised that they came today the sconce look and work great what a difference it made in the room"
Serving Johns Island, SC and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Great to work with. Explained price and procedure in detail. Worked fast and was thorough."
A standard blower door test takes between 30 minutes and one hour to complete. The process involves setting up specialized equipment in your doorway, running the fan to create pressure differences, and taking measurements throughout your home. Additional services like thermal imaging or detailed leak detection will extend this timeframe. The technician will also spend time explaining the results and making recommendations based on their findings.
Preparation involves turning off all combustion appliances, such as gas furnaces and water heaters, for safety. Secure all exterior doors and windows, but leave interior doors open to allow airflow throughout the house. Close fireplace dampers and cover any ashes to prevent them from being drawn into living spaces. Clear access to potential inspection areas like attics and crawlspaces, and inform everyone in the household about the test to prevent accidental door openings during the process.
Older homes often benefit most from blower door testing because they have more air leakage points than newer construction. The test can pinpoint specific areas where relatively inexpensive improvements will yield significant energy savings.
Many homeowners of vintage properties report noticeable reductions in drafts and more consistent indoor temperatures after addressing issues identified during testing. The potential utility savings often recover the testing cost within a reasonable timeframe.
New construction must meet increasingly stringent energy codes that specify maximum allowable air leakage rates. Meeting these standards requires careful attention to air sealing details during construction.
Success depends largely on properly installing air barriers, thoroughly sealing around penetrations, and quality control throughout the building process. While achieving code compliance is challenging, builders who implement systematic air sealing protocols succeed in meeting required standards.
It's best to schedule a follow-up test after completing all recommended air sealing and insulation work. This allows you to verify the effectiveness of your improvements as a complete package. Allow sufficient time for all sealing materials to cure properly—often a few weeks after completion. The verification test provides documentation of your home's improved performance and confirms you've addressed the issues identified in the initial assessment.
From average costs to expert advice, get all the answers you need to get your job done.
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