Cornerstone Solar South Review 2024 - GA Residential View

Installing solar since 2020
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Updated on 2023-02-02

Cornerstone Solar South Overview

Cornerstone Solar South is a small solar panel installation company based in McCaysville, Georgia. They Service throughout the state of Georgia, as well as parts of South Carolina, North Carolina, Tennessee, Mississippi, and Alabama.

The company was founded in 2020 by Larry Mashburn. Cornerstone Solar South focuses mainly on residential installations but will also do off-grid and commercial installs.

They will install ground mounts and solar tracking panels as well.

Cornerstone Solar South does not have a huge online presence, and they rely heavily on local recommendations and word of mouth.



Cornerstone Solar South Services and Specifics

Cornerstone Solar South Products and Services offered

Solar Panels: Cornerstone Solar South uses Q Cell solar panels on their installations. Q Cell solar panels are regarded as reliable mid-cost panels. They are P-type, high-density cells with an efficiency rate of 19.8% – 21.4%. While not top-of-the-range, they are considered reliable and cost-effective.


Batteries: Cornerstone South Solar also offers battery installation. Whether you are interested in being completely self-sufficient – “off the grid” or if you would just like to store some excess energy to use at a later time, they will happily discuss your needs and find the right system for your requirements. They offer a range of batteries, depending on specific customers’ needs, but the main brands that they use are Lithion, Generac, and Homegrid.


Solar Panel Maintenance: Cornerstone Solar South also offer a solar panel maintenance service. It is recommended that solar panels are cleaned, and solar systems are inspected regularly. Cornerstone Solar South recommends that this is done annually, and have a complete service to do this for you. For a small fee, they will come to your property and ensure that your solar panels are working optimally.



Installation Costs and Processes


Customers of Cornerstone Solar South are happy with the pricing, finding them reliably cheap in comparison with other Solar installation providers in the area. By using reliable, but budget-friendly Q Cell solar panels, Cornerstone Solar South is able to pass this value on to its customers.

The company offers free remote evaluations and will charge a nominal fee to visit your property. Previous customers have found this service to be worthwhile. During their visit, they will do solar readings, measure your roof and determine the best location to position the inverter and batteries. They will then provide you with a detailed solar proposal.

If the upfront cost of solar panel installation is a barrier, Cornerstone Solar South offers financing options and will also assist with any Federal Tax Credits or REAP Grants that you may be eligible for.



Cornerstone Solar South has been working in the Southeast for two years. Although a relatively new business, the owner, Larry Mashburn, has been operating other businesses in the area for over 25 years.

Since they are a small and recent company, they currently only have a few online reviews. Of those few, all are very positive. Their customers are happy with both the workmanship and customer service provided by Cornerstone Solar South.

The business is registered with the State of Georgia Corporations Division under the NAICS Sup Code Electrical Contractors and Other Wiring Installation Contractors, and they have all of their contact details easily accessible on both their website and social media platforms. This leads us to believe that they are a legitimate company.



Cornerstone Solar South is a very proactive company that is easy to get hold of through both phone and social media.

Previous customers have been very happy with the amount of communication provided by Cornerstone Solar South throughout their projects. One customer even stated that Cornerstone Solar South made sure that they were aware of when items were to be delivered to their site, and they were always told of any delays or issues. There have been a few small scheduling conflicts between clients and Cornerstone Solar South, but all were sorted out extremely quickly and professionally.



The SolarEmpower View

Cornerstone Solar South is a predominantly residential solar installer located in McCaysville, Georgia. 

They are a relatively cheap provider that keeps product costs down by using the mid-priced but well-regarded Q Cell solar panel. They also charge a low rate for installation.

Although a relative newcomer to the Solar Installation industry, Cornerstone Solar South is an up-and-coming solar installation provider that is becoming increasingly active in the Southeast states.

Service Types

Solar Panel Installation

Service Areas

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Are Cornerstone Solar South Trustworthy?


I can't get into contact with Cornerstone Solar South; what should I do?

If you can't get hold of Cornerstone Solar South directly on the phone, fill out the contact form on their website, and someone will be in touch shortly.

Does Cornerstone Solar South offer a free consultation?

Cornerstone Solar provides a free remote evaluation. For a small fee, they will visit your home for a full evaluation.

Cornerstone Solar South Solar Details

Workmanship Warranty
10 Years
Licensing Information


51 Cornerstone Ct.
Mc Caysville, GA

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