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Verified Reviews for Energy Efficiency Auditing pros in Sheldon, SC

*The Angi rating for Energy Efficiency Auditing companies in Sheldon, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Sheldon, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on July 31, 2026

Top-Rated Energy efficiency auditors in Sheldon - Updated Nov 2026

Avatar for Performance Energy
Performance Energy
4.3(
107
)
Home Energy AuditEnergy Audit - For Business

Serving Sheldon, SC and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Levi understood our wanting a Thermal Imaging & Blower Door, Energy Audit Tests performed regardless NewCon 10mo old because of 2 floods 2nd wk found 1/3 of 3000sqft -0- insulation. Then 3rd major flood 3rd wk and 10mo later still trying to resolve because of tow the co line "denied" work tickets to bring house to 2023 code. Blower Door Test results: 39-qty of the can lighting are NOT sealed NOR are 40-qty Outside Wall Sockets sealed (=Winter heat escapes into Attic/Outside Siding and =Summer 180 degree Attic heat penetrates into the house. Thermal Imaging results: all 3 tray ceilings JOISTS are visible from inside and all Corners of Ceiling & Corner Exterior Walls (= missing -0- to a "dusting" of insulation attic/exterior walls) Levi found a 30ft long x ~6" wide open cut center back roof covered in tar paper & single shingles for length -0- RidgeVent -0- support during storm. We called the State & the County! House should never have passed for CO. We highly recommend PE !"
blow in insulaiton
Insulation and sealing
Insulation and sealing
Insulation and sealing
pulling old insulation out

+12

Response time2 days
Response rate88%
36 neighbors recently requested a quote
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Avatar for GALBREATH & SONS INC
GALBREATH & SONS INC
4.6(
43
)
Energy Audit - For BusinessHome Energy Audit

Serving Sheldon, SC and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"Professional, knowledgeable and very thorough.  checked everything and provided a detailed report.  did not try to add on to the bill which has happened to me before.  will use again"
Recommended by83%of homeowners
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Avatar for ADT Solar
ADT Solar
4.4(
111
)
Energy Audit - For BusinessHome Energy Audit

Serving Sheldon, SC and surrounding areas

In business since 2008

Free estimates

Warranties offered

"Rep. checked entire system. He found several wires not connected properly and fixed this. He also made recommendations regarding the attachment of the panels to the rood that would provide more stability and leakproofing. The representative appeared to know what he was doing - much better than others, including the representative who was engaged by the roofer (who replaced our rood due to hail damage) to disconnect/connect the panels."
11 kW PV Installation
5 kW PV Installation
9.5 kW PV Installation
Recommended by89%of homeowners
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Avatar for South Carolina Solar Project
South Carolina Solar Project
5.0(
9
)
Energy Audit - For BusinessHome Energy Audit

Serving Sheldon, SC and surrounding areas

In business since 2017

Free estimates

"Jon Mason with South Carolina Solar Project did an amazing job start to finish. From the initial consultation and review of solar energy to the installation, topnotch professionalism. Jon's technical expertise, financial knowledge and passion for solar energy is evident and assured me that I was making the right choice to go Solar. I would, and have, highly recommend South Carolina Solar Project to anyone looking to go Solar!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+61

Recommended by100%of homeowners
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Avatar for My Personal Technician
My Personal Technician
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Sheldon, SC and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Rorry was absolutely fantastic, he was super efficient, very pro-active and had great customer service! Highly recommended."
Response time8 hrs
Recommended by100%of homeowners
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Southeastern Solar Energy Corporation
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Sheldon, SC and surrounding areas

In business since 2005

Free estimates

Here at Southeastern Solar Energy Corporation, we love helping and educating our customers on the condition of their home. The homes throughout the United States are the single largest energy consumer in the world. Over sixty-five percent of U.S. homes are currently under-insulated, not insulated, or leaking an excessive amount of air and energy. Due to the air your home leaks every hour, over two-thirds of the oil or gas you purchase goes towards heating your backyard. Let us show you how to save money every minute of the day!

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Energy Efficiency Auditing FAQs, answered by experts

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

You can check your home's humidity in a few ways. A simple option is to use a hygrometer, which you can find at a hardware or big box store. Your smartphone may also have an app that can measure humidity. Modern thermostats, particularly smart thermostats, are also able to measure humidity levels.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Smart home upgrades can be worth the money. Several upgrades, including smart thermostats and ceiling fans, can help reduce your energy bills. Others make life more convenient, freeing up your time to do what you love (or get more work done). And some smart home upgrades, such as entertainment systems, simply make life more enjoyable. All are worthy causes.

A good SEER rating for an HVAC system is typically between 15 and 20. However, minimum requirements vary by location; HVAC systems in northern states must have at least a 14 SEER rating, while those in southern states need a minimum of 15. For the highest possible efficiency, look for units with a SEER rating of 21 or higher. It's important to remember that a SEER rating represents the maximum efficiency a unit can achieve, not the level at which it will operate at all times.

The Sheldon, SC homeowners’ guide to energy efficiency auditing services

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