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TRUSTED BY LANCASTER, SC HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon14
    Verified energy efficiency auditing services reviews

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

Avatar for ADT Solar
ADT Solar
4.4(
111
)
Energy Audit - For BusinessHome Energy Audit

Serving Lancaster, SC and surrounding areas

In business since 2008

Free estimates

Warranties offered

"We met with 3 different companies to advise on getting solar panels. The first 2 companies basically just told us what size system we could get based on state and federal tax rebate levels. Heard an advertisement for Sunpro on radio and decided to call them; turned out to be a good decision. Kara with Sunpro was extremely informative and had a nice package put together for us to review. She even researched our home and had an idea of how much production we could expect with the recommended solar panels. Even after selecting Sunpro, I called Kara with questions about things I'd heard from others or something I forgot to ask. I never felt like I was a burden and she always returned my calls if I had to leave a message. The complete team with Sunoro were professional and eager to help. Satisfied with new solar system and looking forward to enjoying savings on electric bills.
"
11 kW PV Installation
5 kW PV Installation
9.5 kW PV Installation
Recommended by89%of homeowners
Avatar for South Carolina Solar Project
South Carolina Solar Project
5.0(
9
)
Energy Audit - For BusinessHome Energy Audit

Serving Lancaster, 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!"
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+61

Recommended by100%of homeowners
Avatar for Fresh Air Technologies, LLC
Fresh Air Technologies, LLC
4.4(
239
)
Energy Audit - For BusinessHome Energy Audit

Serving Lancaster, SC and surrounding areas

In business since 2001

Credit card accepted

"Outstanding! Mario and his workers did a fantastic job! They removed all insulation. They sanded off all wood and treated with a solution to kill any residual mold. They placed new insulation. They encapsulated the whole crawl space and placed a dehumidifier. I felt very confident that the job was "done right". The whole organization very professional."
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+4

Recommended by87%of homeowners
Avatar for Sound Advice
Sound Advice
4.5(
58
)
Energy Audit - For BusinessHome Energy Audit

Serving Lancaster, SC and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"If you are looking for someone to install home theater--don't even bother looking anywhere else. Robert's prices were competitive, and he did an absolutely amazing job for us. He even worked overtime to make sure he was finished within the timeframe we agreed upon, and he made sure everything was working perfectly and took the time to walk us through everything. I cannot recommend him highly enough--super nice guy who is very skilled, knowledgable and works tirelessly to make sure you're happy. There's not much more you can ask for in a service provider.
"
Mounted TV
Fireplace
TV above an existing fireplace
Recommended by97%of homeowners
AltruEnergy Building Performance
5.0(
2
)
Home Energy Audit

Serving Lancaster, SC and surrounding areas

In business since 2006

Free estimates

"Chris Folse knows his stuff! He has been a big help teaching and showing us how to make our home more energy efficient. He speaks to you like a person and helps you truly understand your home's energy shortcomings. He is not just out to make a buck. He becomes honestly vested in making your home a more energy efficient place to live. You can tell from the moment you meet him that he is excited about, and strongly believes in, what he does and that translates into his work. I highly recommend his services to anyone interested in making their home more energy efficient."
Recommended by100%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

Yes, most audits include a report with prioritized recommendations for improving energy efficiency. Confirm with your auditor.

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.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

The Lancaster, 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.