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Solar Installer GuildUnited States · independent

Ilumen Solar

Solar energy company · Lake Barrington, IL

What the listing shows you

5.0★

84 Google reviews

What it doesn’t

1%

rated 1–2★

typical in Illinois, 2%

Newest review held

Jul 2026

newest held review this month

Google's rating breakdown · all 84 reviews

Rated 1–2★
1%
typical in Illinois, 2%
Posted an update
3 days ago
the company posting to its own Google profile
Replies to reviewers
74%
of the 84 reviews we hold

Its one and two star share is 1 point below the typical installer in Illinois. Across Illinois, 101 of the 183 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 84 review texts for this company, quoted below. Google publishes review ages rather than dates, so every date here is approximate.

On the Illinois ranking

No. 14 of the 64 rankable records in Illinois →

Ordered by the share of one and two star reviews, weighted by how many reviews stand behind it. It ranks review records, not workmanship.

Every company we hold in Illinois, on one axis

none

1–5%

6–10%

11–20%

over 20%

Every company we hold in Illinois whose Google breakdown has been read, grouped by their share of one and two star reviews. Ilumen Solar is in the highlighted group.

What reviewers said

  • 5★ · around July 2026

    Ilumen Solar was incredibly helpful and responsive in getting my SREC application completed after I was left stranded by my original solar contractor. They knew exactly what needed to be done and quickly helped resolve the problem. I would highly recommend Ilumen Solar to any stranded solar customer.

  • 5★ · around July 2026

    There was a panel in my array that was only producing about half of the other ones. After getting the run around from the company that installed the system, I decided to contact Ilumen Solar based on their reviews. Best decision I made regarding my system. Even though the original panel was supposed to be replaced under warranty, Ilumen only charged an addition $50 to purchase and install a new panel. Two days later, instead of weeks of excuses, the panel was replaced and my system is at full power. I never have to worry about getting service again. Ilumen is my new go to solar company.

  • 5★ · around June 2026

    This review is long overdue! When we bought our home in 2021, we knew we wanted to go solar. Out of all the installers we contacted, Zach was the only one who didn't sound like a typical salesperson. His genuine passion for the industry is what ultimately sold us on the project. While the process took some time to get off the ground due to HOA/ Developer approvals, Zach and his team were incredibly communicative and supportive throughout the delays. The actual installation in 2023 went exactly according to plan. The entire installation team did a fantastic job keeping it clean with minimal vis

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 installation 21
  • process timeline 5
  • professional installers 5
  • quick responses 4
  • detailed staff 3
  • clean installation 2
  • installation speed 2
  • no visible conduit 2
  • flawless installation 2
  • ev charging 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.

  • Warranty

    “provides a 10-year bumper to bumper warranty for system installation, maintenance,…”

Its website also mentions better business bureau, but not in a sentence we can quote cleanly.

Elsewhere

  • It is also reviewed on 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, Instagram and Facebook. A page that stopped posting years ago tells you something a listing will not.

When they say they are open

Sunday
Closed
Monday
9 AM to 7 PM
Tuesday
9 AM to 7 PM
Wednesday
9 AM to 7 PM
Thursday
9 AM to 7 PM
Friday
9 AM to 5 PM
Saturday
Closed

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.

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.

Other installers around Aurora

1–2★3★4★5★gauge 0–20%typical here, 2%

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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