I called for a consultation. I had one and it was definitely informative. It was the quotation and…read moreFollowup that was not timely. Perhaps because our situation in terms of place and shade was not a good fit.

Jesse Keenan is a professional in every way. he knows his business. He sells and installs - on…read moreweekends to finish a job, he works alone and proficiently. He has earned our trust by selling and installing 9 panels. So we recently ordered 16 more. He was completing those today and i had an urgent MRI, which required sedation so my wife drove me. We left Jesse in our home as he needed to do some work in the attic. Not only did he do that part of the job, he blew away the chips left by previous roofers. Yes and he cuts no corners. He is finishing up now, putting end caps on the open frame's metals - he wants our roof to look good. If you're interested in some solar or a lot of solar, he's you go-to.

In spite of their website problem , HE Solar co-owner, Derrick, reached out to me in an email and…read moreleft his personal number. When I called, he was enjoying some holiday time-off with his family. Yet, he was very professional and responsive. We're off to a great start. Les Fenter 512-715-2495

Although not the lowest bidder, I selected HE based on their reputation. I was not disappointed…read more From design through installation and commissioning, HE performed every task with dedication and professionalism. Absolutely no corners cut or sloppy work. When they said they would be there, they were and on time. Even the meter installer from Austin Energy told me that these guys were far and away the best in Austin. Money well spent

My husband and I wanted to add solar panels to our roof, and we're so glad we went with 512 Solar…read more They were efficient, responsive, and within budget. We did our installation in 2022 and have seen our energy bills lower than ever before! (We have some shade on our roof so we didn't do the full roof, ~20 panels or so, but it worked out well.) They did the rebate work with the city so our out-of-pocket cost wasn't exorbitant at all. Our household also recently purchased a second electric vehicle so we contacted 512 Solar again, this time for a level 2 charger installation. Once again, 512 Solar was excellent at getting our quote together, suggesting two hardwired chargers that the city does rebates on, and actually getting the work done as well. We have to do the final step with submitting the rebate paperwork to the city, I believe, but that's small beans compared to all the work that JP and Huiyun did for us at the outset. Really happy we went with these folks and will continue to recommend their business!

This is actually the second time I've used 512 solar! I invested in 13 panels hooked up to a Tesla…read moreinverter last year, then added another 6 recently. The installs went flawlessly. The sales contact Jane is incredibly responsive and worked many different quotes with me with ease. There was an issue with the critter guard install but they came back out immediately to fix it. My system has been working flawlessly. I definitely think this is the best solar install company in Austin. Definitely get connected with Jane she is the best!

They installed our solar in 2021 and just came out to upgrade our battery…read more Matthew was very professional and courteous.

Scandalous Unaccountable Liars…read more Can't Trust These Fools. Stay Away! Their crew damaged my roof, made half-ass attempts to fill some holes, and didn't disclose anything to me. Just left my roof with holes draining rain into my attic. A roof inspection revealed their destructive work a couple months after their installation because we had a hail storm and I needed the roof inspected. All they have given me is the runaround and have even begun to lay the groundwork for denying it was their crew.

Longhorn solar gave me an absolutely stellar experience. The price was super competitive, and the…read moreservice I got was the highest quality I can imagine getting. I'm not a low maintenance customer, and Jameson (our account manager) was there for me every step of the way. The install looks great and is producing at the levels I was told to expect. A big thanks to Jameson and Fhilecya for getting me set up with a solar system that makes really happy. Details: - Hired in early/mid 2024 - Producing energy for about one month - No subcontractors performed install - ~1500 sqft home built in 1970s

I purchased my solar system from Longhorn Solar in April 2022. Unfortunately, my experience after…read morethe installation has been very disappointing. In August 2023, I needed a new roof and paid over $13,000 to have Longhorn Solar remove and reinstall my 37 solar panels. The panels were supposed to be cleaned before being reinstalled, but they were not. They were also reinstalled with the dirty side facing my front porch, which was very noticeable. On top of that, I had to wait approximately four weeks after my roof was completed before the panels were put back on. In May 2025, a connection issue caused my entire system to stop producing power. Because my system uses a single inverter, when one issue occurred, none of the panels worked. It took nearly two months to get the problem resolved, leaving me without solar production during that time. Now, in May 2026, the system has stopped working again. It has been almost three weeks, and I still do not have an appointment scheduled for repairs. It feels like customer service and system maintenance are not a priority once the sale is complete. I purchased 37 panels with the expectation that they would offset approximately 80% of my electric usage. That has never happened. Even when the system is operating, I consistently have electric bills between $180 and $200 per month.

Zack did an excellent job installing the Tesla wall connector. He showed up on time, went through…read morehis plan, and got it installed neatly and without conduits. Everything was cleaned up and ready for me to set up. He had to cut some drywall to run the cable, but did it low behind my softener so it's not even visible. I highly recommend Grayzer for charger installs. They've been focused on them for a while, and it shows.

So I was in the process of adding a Tesla Wall Connector to my home. I sent out a request to three…read moredifferent companies ( all Tesla Certified installers ). All were prompt in their responses and provided well written proposals. Only Grayzer included the cost of a permit in their proposal. Further a friend had their wall panel upgraded and their Tesla Wall Connector installed by Grayzier and recommended them highly. After looking at the reviews for the different certified installers, and given that a permit is required in my town to install an EV charger, I went with Grayzer. They provided a date and service window ( a week in advance of my appointment ) and the electrician, Max, pinged me about an hour prior to his arrival. I showed Max my ideal location for the Tesla Wall Connector and he was able to accommodate without having to cut away any drywall or running conduit outside the wall ( YMMV ). Very friendly, professional and knowledgable. He took the information/pictures required by Tesla and by my town's permitting authority, commissioned the Wall Connector, showed my how to add it to the Tesla Application on my iPhone and verified that it was charging at the specified rate (48 amps). He was happy to answer any questions I might have, and I am just delighted by the service and work done. I would recommend highly to friends, neighbors, et al. All in all, quick, fast, efficient, and professional. Cleaned up work area when done. Thank you!

Harry Startup installed 17 solar panels on my roof about 10 years ago. He is meticulous about…read moreelectrical details and provides high quality work. When my roof was replaced recently, he removed the panels, checked each for output, & reinstalled them effectively. Harry and his team arrive promptly on schedule! I know Harry Startup to be honest and give value for a solar installation. HIGHEST RECOMMENDATION!

From the owner: We will work with you to develop a solar energy system that meets your needs. read more

I had few friends that recommended me this company, I met with Koren first and then with few other…read morecompanies. Koren was by far the most knowledgeable and professional then the others. Also, their prices/program was great and I really saw the benefits I'll receive with choosing them. Overall I had a great experience and will definitely recommend to family and friends. Thank you Koren.

Had Green NRG install solar on my house. The installation went well but now after a year when I…read morehave an issue they don't answer the phone and don't answer email. There is no way to contact them. It's a 25 year warranty but can't get any help