EFS Energy

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

• 2★ · around August 2023 · the company replied

  Our ground built solar system was commissioned on March 29, 2022 and has worked less than 6 weeks consecutively. Yes, you read that correctly. EFS HAS been out to our home many times and every time they leave it is not fixed. Many times a different problem exists. It is beyond frustrating to not only have an electric bill but a solar loan as well with no plan or end on sight. If this nightmare ever ends we will update this review for future reference. Update: 6/2023 for just over 1 month we have had working solar! Let me give you a short story of how we got here. When the initial electrical wa

• 2★ · around August 2023 · the company replied

  Working with EFS to get solar installed has been a challenge. They are highly rated, competitively priced, and I believe this equipment is quality and expect it to perform well. That being said, the process to get the location of the array, permitting, inspection, and installation was not managed particularly smoothly at all. I had to call frequently throughout the process to follow up on things they said they would do. Often times it seemed as though the different departments within the company were not communicating or aware of what the other had done or were supposed to do. After I signed t

• 1★ · around August 2023

  System is over seven months old and not working properly. They come out, and still not working properly. Then they don't show up for months.

• 5★ · around June 2026

  We chose this company because they offered a detailed breakdown instead of vague promises about “huge savings.” The workers arrived exactly when scheduled and worked steadily through the day. A family member accidentally blocked part of the driveway, and they handled the inconvenience very politely.

• 5★ · around June 2026

  I waited almost six months before writing this because I wanted to see if the system actually performed well long term. So far, no complaints at all. Even during extremely hot days, the panels keep producing steady power. The installers were friendly, efficient, and didn’t leave any trash behind.

• 4★ · around August 2025

  An update after 4 years: Very happy. I have not been able to add more panels -- the cost of boosting capacity by about 25% would be about 50% of the original cost! Wish I'd asked for more originally. But everything else has run very smoothly. Pay-off time for the array looks to be about 18 years. ------------------------------------------------------------------------------------------ Two years out from installation. Pretty happy overall. EFS was very good answering all my early questions. Installation was smooth and pretty close to their original estimate on timing. The system is now working

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.

• solar installation 8
• answering questions 6
• energy production 2
• smooth process 2
• installers 2
• project manager 2
• design 2
• electrical connections 2
• competitive pricing 2
• painless process 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.

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

• Established

  “almost $115,000 in operating costs since 2019. Explore solar solutions for schools.”

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

• It is also reviewed on Yelp. Worth reading before you sign anything: those are a different crowd, and the complaints that reach the Better Business Bureau rarely reach Google.

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

• StraightUp Solar4.8★ · 153
• Exceptional Energy Solutions5.0★ · 17
• Astrawatt Solar4.5★ · 48
• American Patriot Solar5.0★ · 1

The ones without a link have no page here, either because Google does not categorise them as solar businesses or because we could not match the name to a listing with confidence.

• CompanyRating breakdown1–2★Newest review held

• StraightUp Solar

  4.8★ · 153 reviews · St. Louis, MO

  3%
  Newest held review this month

• SunSent Solar

  4.7★ · 153 reviews · St Charles, MO

  7%
  Newest held review this month

• ARC - Solar Energy & Electric Services

  4.8★ · 103 reviews · St Charles, MO

  2%
  Newest held review 8 months old

• ECOcentrix

  5.0★ · 60 reviews · St. Louis, MO

  0%
  Newest held review this month

• Astrawatt Solar

  4.5★ · 48 reviews · Olivette, MO

  13%
  Newest held review 2 months old

• Exceptional Energy Solutions

  5.0★ · 17 reviews · Imperial, MO

  0%
  No held review in a year

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.

• —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.