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

EnergySmith Home Performance
4.8(
164
)
Home Energy Audit

Serving Walhalla, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Credit card accepted

"I received the company's info through Duke Energy. The owner came out to the house within a couple of days to complete an assessment and provide a quote. Once I had some other work completed, I called back to schedule the appointment for removal and install, and they came out within a couple days, removed all the old insulation and blew in the new insulation. They were done, cleaned up and gone, before I ended my workday. Excellent job and crew! When I complete add-ons in the future, they will be the company to handle the insulation."
Response time2 days
37 neighbors recently requested a quote
Recommended by94%of homeowners
The Solar Guru
5.0(
1
)
Energy Audit - For BusinessHome Energy Audit

Serving Walhalla, SC and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer \nservice that we provide to meet the consumer's needs. It is our mission \nto provide excellent workmanship and complete \ncustomer satisfaction from start to completion of a project. In order to \nunderstand the needs and expectations of our customers, we take great \ncare to work and communicate with every customer in a professional \nmanner. Our reputation is based on service, safety, \nand quality, regardless of how large or small the job.

Recommended by100%of homeowners
Avatar for ADT Solar
ADT Solar
4.4(
111
)
Energy Audit - For BusinessHome Energy Audit

Serving Walhalla, 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
Avatar for Corley Plumbing Air Electric Inc
Corley Plumbing Air Electric Inc
4.0(
453
)
Energy Audit - For BusinessHome Energy Audit

Serving Walhalla, SC and surrounding areas

In business since 1986

Emergency services offered

"It was thrilling. Without the Corley guys’ diagnostic and electrical expertise, the house would probably have burned down. Seriously. This was a bona fide emergency. It was puzzling and difficult for them, and stressful for us — before it was over, I had evacuated the house — and we were making weak jokes about poltergeists and exorcists… but apparently a squirrel had chewed up the Duke Energy line, sending thousands of units of raw electrical power into the house! ????? Afterwards, I needed a vacation somewhere — anywhere — quiet… but thanks to Corley, we have a house, new wires, and are (relatively) sane. Thanks again, Corley crew! ❤️❤️❤️"
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+5

Recommended by77%of homeowners
Avatar for Energy Sharks Heating & Air
Energy Sharks Heating & Air
4.4(
39
)
Energy Audit - For BusinessHome Energy Audit

Serving Walhalla, SC and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Summary: Hire them - period! This review has 2 parts: 1) Diagnosis of existing system by Phil, the owner and 2) Removal of old / existing system and installation of new system led by Danny, the lead installer of the FOUR! (4) men on our job. 1). DIAGNOSIS of "Old" System My wife and I bought a townhouse in Greenville and I knew (per the inspection) that the old system was "shot". Consulted seller's realtor for an HVAC Company recommendation as well as Angies List, where I saw the reviews for Energy Sharks. Submitted online contact form and had a call by the owner Phil within the hour. Set up the appointment THE NEXT DAY to inspect existing system. I was not able to be onsite but Phil checked it out and then spent time to explain the issues with the current system, and educated me in PLAIN ENGLISH why the system he recommended, along with the addition of an additional return to help supply the necessary airflow, was what would be needed to provide the level of comfort which we desired. Price was competitive and definitely less than Realtor's referral, who didn't even mention the return / airflow problem. Bottom line, Phil did his job and gave me a quote that I thought was fair (and thousands less than the other quote)... 2). REMOVAL of old system and INSTALLATION of new system. The crew of FOUR (4) MEN arrived at 7:15am and immediately got to work. They put in drop cloths everywhere they would be working and went about their work in a steady manner. A HUGE shout out to Danny, the lead installer. ASK FOR HIM on your job! He kept me constantly apprised of what was going on, where there were some holes in the ceiling that pre-existed, where the new return could be and should be, etc. Can't tell you how competent the entire team was. Each of the men did their part and they worked very efficiently. Less than 4 hours later, they were done. Got a quick tutorial and they were on their way. Summary: Prompt service, fair pricing and excellent communication means I am pleased to refer them - without reservation. Great job Energy Sharks! A+"
Commercial Oven Wraps
LED & CFL Bulbs
Duct Sealing
Recommended by88%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

Replacing a window frame will improve your home’s energy efficiency if the old frame is cracked or damaged in a way that allows unconditioned air from the outside into your living space or if you upgrade to a more energy-efficient window frame material. Aluminum is the least energy-efficient window frame material, followed by vinyl and wood. Fiberglass and composite frames are the most energy-efficient.

String lights require electricity, but not an excessive amount, especially when compared to other lighting fixtures. LED rope lights, for instance, consume around one watt per foot. Running six or seven light strings simultaneously should only cost you around $10 to $15 each month. You can save even more money by remembering to turn off your lights during daylight hours. 

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

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

From average costs to expert advice, get all the answers you need to get your job done.