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Solar Installer GuildUnited States · independent

Semper Solaris

Solar energy company · Fresno, CA

What the listing shows you

4.5★

73 Google reviews

What it doesn’t

11%

rated 1–2★

typical in the Paso Robles area, 11%

Newest review held

Jul 2026

newest held review last month

Google's rating breakdown · all 73 reviews

Rated 1–2★
11%
typical in the Paso Robles area, 11%
Posted an update
3 months ago
the company posting to its own Google profile
Replies to reviewers
93%
of the 73 reviews we hold

Its one and two star share is level with the typical installer in the Paso Robles area. Across California, 411 of the 1,529 installers whose breakdown Google has published carry a higher share than this one.

The percentages are Google’s own arithmetic over every review it holds, not a sample we assembled. Separately we hold 73 review texts for this company, quoted below. Google publishes review ages rather than dates, so every date here is approximate.

Every company we hold in the Paso Robles area, on one axis

0% rated 1–2★65%

Each mark is one company we hold in the Paso Robles area whose Google breakdown has been read, placed by its share of one and two star reviews. Semper Solaris is the red one. The amber line is the middle of that set, which includes suppliers and maintenance businesses as well as installers.

What reviewers said

  • 1★ · around September 2025 · the company replied

    I recently had a new roof and added a power wall 2 to my house. They had to remove and reinstall my solar panels after completion of my roof. After adding the power wall my system started not producing correctly to the point of not producing at all. I've called numerous times over the last month to have someone come out to have it fixed since they said they claim ownership of any issues that arise after touching my solar panels system. I keep calling every couple days and yet I get no call back. I'm satisfied with the work of the roof but highly disappointed of my the work done of reinstalling

  • 1★ · around August 2025 · the company replied

    Semper Solaris HVAC Installation – Poor workmanship, worse service I signed a contract with Semper Solaris in Sept. 2022 for a new HVAC system at my Fresno home. From the start, the experience was a disaster. Shortly after signing, my assigned Energy Consultant left the company, and I was never given a new contact. Before installation in Nov., the Fresno branch closed, so my crew came from Bakersfield, 100 miles away. The install, estimated at 1-2 days, took 4 because the crew only worked 3-4 hours/day due to their commute. When the system was finally installed, it didn’t work. The thermostat

  • 1★ · around August 2023 · the company replied

    Had solar installed in October and once they had the panels on my roof, they stopped communicating with me, no updates nothing, zero follow up I had to call them and wait on hold for 30 minutes. Spending $60K and you would think they would inform me of what was going on with things, as in call me and update me on what the process was and what was pending, never got a PTO from PG&E and still waiting. The finance company even billed me way earlier than expected, and said sorry we cant help you PAY up. So my mistake for picking this company to do my solar. Bad experience. Beware. NOTE: Also be ca

  • 3★ · around August 2025 · the company replied

    This is a very basic installation company. The design team left a lot to be desired. They installed 1/3 of my panels behind a pine tree and the HVAC unit, which casts a shadow after 3 p.m. They could have used the other side of the south-facing roof instead of the west side, where the pine and the HVAC unit are located. I requested the panels be relocated, but they didn't. I spoke with the engineering and Quality Assurance manager regarding this issue, and they took no action. I am losing generation power in a third of my panels. That is an energy I could be selling, but instead, I am paying t

  • 5★ · around July 2026 · the company replied

    I want to thank Semper Solaris and Logan for providing outstanding customer service throughout the entire process. Logan was incredibly helpful in guiding me to the right solar system for my home without ever making me feel pressured. Whenever I had questions, Logan took the time to answer every one of them and was always easy to reach by phone or text. The entire experience was smooth, professional, and stress-free. I highly recommend Semper Solaris and Logan to anyone considering solar. I wouldn’t hesitate to recommend them to my family and friends!

  • 5★ · around June 2026 · the company replied

    Well David did a great job in fixing our HVAC system and explained all that he was doing to fix it.

  • 5★ · around June 2026 · the company replied

    I've had my solar system sold and installed by Semper for 3yrs now. I had a communication problem early on and 8 panels stopped producing last month. They were very responsive and fixed problem in a reasonable amount of time and communicated with me the entire time

Reviewer names are not published here. Negative reviews are shown first because they are the ones a listing hides, not because they are more representative.

What reviewers keep mentioning

  • solar panel installation 13
  • value 9
  • easy process 5
  • powerwall battery 4
  • courteous staff 3
  • customer education 2
  • quick process 2
  • panel placement 2
  • polite installers 2
  • installation schedule 2

Topics Google derives from the review text, with how often each appears. A frequent topic is not a good one: “price” turns up in praise and in complaints alike.

What the company says about itself

Taken from its own website. We have not checked any of it, and a sentence on a website is not evidence.

  • Veteran owned

    “systems installed by trusted, veteran-owned professionals. When it comes to…”

  • Warranty

    “Cool roof technology & 50 Year warranty HVAC Efficient heating & cooling…”

  • 24/7 availability

    “bills Battery storage Power your home 24/7 Energy efficiency Reduce waste and…”

Its website also mentions free estimate, but not in a sentence we can quote cleanly.

Elsewhere

  • It is also reviewed on Trustpilot and the Better Business Bureau. Worth reading before you sign anything: those are a different crowd, and the complaints that reach the Better Business Bureau rarely reach Google.
  • It posts on YouTube, LinkedIn, Pinterest, X, Instagram, TikTok and Facebook. A page that stopped posting years ago tells you something a listing will not.

When they say they are open

Sunday
9 a.m. to 12 a.m.
Monday
7 a.m. to 12 a.m.
Tuesday
7 a.m. to 12 a.m.
Wednesday
7 a.m. to 12 a.m.
Thursday
7 a.m. to 12 a.m.
Friday
7 a.m. to 12 a.m.
Saturday
7 a.m. to 12 a.m.

As Google published them when we last read the listing, not a live check. Ring before you drive anywhere.

Who Google shows alongside them

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

Other installers around Paso Robles

1–2★3★4★5★gauge 0–20%typical here, 11%

Ordered by how much we can tell you about each, which is not an order of quality. We do not know which of these is better and would not say if we did.

What we don't know

  • The date above is the newest review we hold, which is not necessarily the newest that exists — we hold a large share of Google's reviews, not all of them.
  • We do not verify licences, insurance or bonding. Nothing here has been checked against a state licensing board.
  • We cannot tell you what an installation costs, and we hold nothing about the equipment they fit.

Something wrong here? Tell us and a person will read it.

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