Longhorn Solar Review
Solar and battery installerBased in Round Rock, TexasProfile updated October 14, 2026
Is Longhorn Solar a good choice?
Longhorn Solar fits Texas homeowners in the Austin, San Antonio, Houston and Dallas–Fort Worth areas who want long, written installer coverage. It says it launched solar in 2009, and its warranty page lists a 25-year workmanship warranty plus a 25-year performance guarantee. It prints its Texas electrical license on every page. It names no lease or PPA, and no separate roof-leak term. Ask how the performance guarantee is paid.
- Price
- Quote required; no fixed system price on the company pages we reviewed. Costs
- Coverage
- TX only: Austin, San Antonio, Houston and Dallas / Fort Worth areas. Service area
- Warranty
- 25-year workmanship warranty and 25-year performance guarantee. Warranty
Your request goes to companies that serve your ZIP. It may not include Longhorn Solar. To reach Longhorn Solar directly, use the contact details on this page.
On this page
Why choose Longhorn Solar, and why you might not
What Longhorn does well, and where to be careful, compared with the installers it competes with most.
Reasons to choose Longhorn
Its warranty on its own work is 25 yearsLonghorn says it covers all of its own work for 25 years. Freedom Power and Circle L also list 25 years. 512 Solar lists 10.
It pays you if the panels make too littleLonghorn promises how much power your panels will make for 25 years. It says it pays the difference if they fall short. Ask how it measures this and how it pays.
It names its equipmentLonghorn names REC, Q CELLS and Mission Solar panels, and Tesla and FranklinWH batteries. 512 Solar and Circle L name almost no brands. You can look up the equipment before you sign.
It fixes hail damage and orphaned systemsLonghorn takes panels off and puts them back after hail damages your roof. It also services systems whose installer has closed. Of the three alternatives below, 512 Solar also fixes other companies’ systems.
Reasons to look at others
No set warranty for roof leaksLonghorn lists no separate warranty for leaks where the panels are bolted to the roof. Freedom Power lists 10 years. Ask who fixes a leak there, who pays, and for how long.
You can only buy or take a loanLonghorn lists buying or a loan through Dividend or Sunlight. It offers no plan to rent the panels and no PPA. Ask for the loan rate and fees in writing.
Some owners could not get serviceIn its negative reviews, two owners say the company seems to be gone and cannot service their systems. Another says an inverter repair took almost six months. Ask who services its systems today.
One license number did not matchLonghorn’s Texas license was active when we checked on October 13, 2026. But one electrician number on its site did not match the state list. Ask which license covers your job.
Longhorn Solar reviews: what customers say
Each review site shows its own score; we read them on October 12 and 13, 2026 and do not combine them or add our own rating.
- Google4.6 / 5381 reviews · Round Rock, TX office listing only, not company-wideRead reviews
The five positive reviews below praise prompt warranty repairs, including a failed optimizer replaced, and knowledgeable, professional technicians. The five negative reviews describe two owners who say the company appears to be gone and cannot service their systems, an inverter repair that took almost six months, and calls and emails going unanswered in two more. These are issues to ask about, not a measure of how often they happen. Ask Longhorn who services its systems today and whether it is still handling warranty work.
5 recent 5-star reviews
“Thanks also to Jarod, for making arranging the service easy.”
Tom M. · Read on Google
“Thank you for your time and help!”
Oly H. · Read on Google
“They have great communication skills and were very knowledgeable and professional.”
Jeff L. · Read on Google
“Adam was very professional and friendly, and explained everything he did.”
Tim A. · Read on Google
“Very happy that Longhorn Solar stands by their warranty.”
Tan H. · Read on Google
5 recent 1- and 2-star reviews
“However, it seems they are now out of business and we are stuck with a repair that they can't service for us.”
Linda P. · Read on Google
“Since that time I have had 2 warranty issues, first was an inverter that went bad, it took almost 6 months of me asking them every week to fix the issue.”
Got D. · Read on Google
“I've in my spare time had to troubleshoot and deal with vendors that all wondered why I was calling and not the installer/service team.”
V. · Read on Google
“So, I'm stuck and have no clue how to fix this.”
Woon C. · Read on Google
“If the company is overwhelmed, it may be worth dedicating someone to manage customer emails and inquiries so customers aren't left waiting indefinitely for a response.”
KMB · Read on Google
How we picked these: the five newest 5-star and the five newest 1- or 2-star reviews with written text on Google and Trustpilot, as of October 2026 (200 reviews read, back to Aug 13, 2024). We found no Trustpilot page for Longhorn Solar on October 12, 2026. Each quote is one sentence, word for word. Picking the highest and lowest ratings shows the range of experiences; it is not a representative sample, and we did not verify what reviewers describe.
How much does Longhorn Solar cost?
Longhorn does not publish a fixed system price on the pages we reviewed. Ask for an itemized quote showing the cash price, system size, equipment models and the production forecast its performance guarantee is based on. If you finance, ask for the lender, financed total, APR and fees. For state price ranges, see our solar panel cost guide; for how the plans compare, see loans, leases and PPAs.
Purchase
You own itYou pay the full price.
Solar loan (Dividend Solar Finance or Sunlight Finance)
You own itZero-down loans through the company’s two named finance partners, which set the terms and approval.
Home equity loan, HELOC or personal loan
You own itThe company lists these as options you arrange with your own lender.
Plans as listed on Longhorn’s financing page, read October 13, 2026. No lease or PPA is listed.
Longhorn lists REC, Q CELLS and Mission Solar panels, SolarEdge, SMA and Tesla inverters, and LG ESS Home 8, Q.HOME CORE, Tesla Powerwall and FranklinWH batteries on its products pages. It also offers maintenance, hail-damage roof detach and reset, and service for systems whose installer has closed. Your written proposal should list the exact panel, inverter and battery models, the system size in kilowatts (kW) and the forecast yearly production in kilowatt-hours (kWh).
What does Longhorn Solar’s warranty cover?
Coverage | What Longhorn publishes | What to confirm |
|---|---|---|
Solar panels | 25 years (maker’s warranty for REC and Q CELLS, per product pages) | Your panel model and its maker’s term. |
Panel output | 25-year performance guarantee; Longhorn says it pays the difference if production falls short | The production figure the guarantee uses and how a shortfall is paid. |
Inverter | SolarEdge: 10 years, extendable (maker’s term, per product page) | Your inverter model, its maker’s term and whether labor to replace it is covered. |
Battery | Tesla Powerwall: 10 years (maker’s term, per product page) | Your battery model and its maker’s term. |
Labor and workmanship | 25 years; the company says all labor is covered | That the 25-year term is in your contract. |
Roof penetrations | Not listed separately | Confirm in your proposal: whether the 25-year workmanship warranty covers leaks at panel mounts. |
Company-published terms from Longhorn’s warranty page and its REC, Q CELLS, SolarEdge and Tesla Powerwall product pages, read October 13, 2026. Your signed agreement decides what applies.
Longhorn says it runs system checks every six months during the 25-year performance guarantee period.
Where does Longhorn Solar operate, and which licenses were checked?
Longhorn’s site says it serves Austin, San Antonio, Houston and Dallas / Fort Worth, with offices in Round Rock, San Antonio and Plano and a Houston phone line (Texas locations page, read October 13, 2026). A listed area does not mean every address qualifies or that EcoGen can connect you with Longhorn there.
Showing Round Rock, TX (corporate office, North Austin)
Office addresses (3)
- Round Rock, TX (corporate office, North Austin)1500 Chisolm Trail Rd, Suite 100, Round Rock, TX 78681Show on mapOpen in Google Maps
- San Antonio, TX12500 Network Blvd, Suite 100, San Antonio, TX 78249Show on mapOpen in Google Maps
- Plano, TX (Dallas / Fort Worth)701 E Plano Pkwy, Suite 305, Plano, TX 75074Show on mapOpen in Google Maps
Address from Longhorn’s website, read October 13, 2026.
Licenses
We found 2 active license records in state registries (October 13, 2026). Check the license yourself under the exact business name on your contract. A license check confirms registration, not workmanship quality.
Texas2 recordsActive, checked Oct 13, 2026
- License
- Texas Electrical Contractor License
- Number
- TECL 27514
- Registry check
- Active, Texas Department of Licensing and Regulation, checked October 13, 2026
- Note
- Registry lists LONGHORN SOLAR; expires 2027-10-01. The published number belongs to an unrelated individual; Longhorn’s master electrician of record holds ME 9048, so the published number is likely a typo.
- License
- Master Electrician
- Number
- ME-9047
- Registry check
- Active, Texas Department of Licensing and Regulation, checked October 13, 2026
- Note
- expires 2027-04-05. The published number belongs to an unrelated individual; Longhorn’s master electrician of record holds ME 9048, so the published number is likely a typo.
Longhorn’s site footer lists three NABCEP certification numbers, and its pages say its team is NABCEP certified. Its REC page says it offers REC’s ProTrust warranty, which REC limits to its certified installers. These are company statements; we did not verify them.
Longhorn Solar compared with three other installers
Every alternative shares only Texas with Longhorn. We chose three Texas-based installers that work in the same cities. Every fact comes from the company profiles linked below.
| Longhorn SolarThis page | Freedom Power | 512 Solar | Circle L Solar | |
|---|---|---|---|---|
| Best for | Long written warranties in four Texas city areas | Solar, batteries, generators and heating and cooling | A small Austin installer that also fixes systems | An in-state installer that does its own installs |
| Head office | Round Rock, TX | Austin, TX | Austin, TX | Fort Worth, TX |
| States shared with Longhorn | Its only state | 1: TX | 1: TX | 1: TX |
| Roofing | Not listed | Not listed | Not listed | Not listed |
| Ways to pay | Buy, loan | Buy, rent, home equity line | Not listed | Not listed |
| Labor warranty | 25 years | 25 years | 10 years, in writing | 25 years |
| Roof leak warranty | Not listed separately | 10 years | Not listed | Not listed |
| Brands named | REC, Q CELLS, Mission, SolarEdge, SMA, Tesla, FranklinWH | Maxeon, Qcells, REC, Mission, Enphase, Tesla | Tesla, Enphase, SolarEdge (certified on) | Enphase |
| Google score* | 4.6 (381 reviews) | 4.5 (1,012 reviews) | 5 (589 reviews) | 4.4 (172 reviews) |
*Each Google score is for the company’s head-office listing only, read October 12 and 13, 2026.
Full profiles: Freedom Power · 512 Solar · Circle L Solar
Before choosing Longhorn Solar
Ask for these in writing:
- An itemized quote with the cash price and the financed total, including the APR and all fees.
- The exact panel, inverter and battery models, the system size in kW and the forecast yearly production in kWh.
- The warranty documents for your payment plan: panels, inverter, labor and roof penetrations.
- Your local service contact, and who handles utility approval and warranty claims.
- The exact company on the contract, such as Longhorn Solar, and its license for your state.
Before you sign, read the quote line by line and bring our questions to ask a solar installer.
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How we researched this profile
We read Longhorn Solar’s own pages on October 13, 2026: homepage, about, Texas locations, warranty, financing, cost, products, four product pages, NABCEP page and contact. We did not check its licenses in a state registry. On October 14, 2026 we also read its privacy policy, which names the company Longhorn Solar, Inc., and its Houston page. We did not buy a system, request a quote, visit an office or interview customers. Longhorn Solar did not review this page.
Our installer methodology explains what we check.
Sources (12)
- Longhorn Solar: Homepage, read October 13, 2026
- Longhorn Solar: About (history), read October 13, 2026
- Longhorn Solar: Warranties and guarantees (offices, license), read October 13, 2026
- Longhorn Solar: Financing for every budget, read October 13, 2026
- Longhorn Solar: What do solar panels cost, read October 13, 2026
- Longhorn Solar: Texas locations, read October 13, 2026
- Longhorn Solar: REC panels, read October 13, 2026
- Longhorn Solar: Q CELLS panels, read October 13, 2026
- Longhorn Solar: SolarEdge inverters, read October 13, 2026
- Longhorn Solar: Tesla Powerwall, read October 13, 2026
- Longhorn Solar: Privacy policy (legal name), read October 14, 2026
- Longhorn Solar: Houston, read October 14, 2026