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Solar Installer GuildUnited States · independent

Windfree Solar Co

Solar energy company · Chicago, IL

What the listing shows you

4.6★

117 Google reviews

What it doesn’t

8%

rated 1–2★

typical in Chicago, 3%

Newest review held

Aug 2026

newest held review this month

Google's rating breakdown · all 117 reviews

Rated 1–2★
8%
typical in Chicago, 3%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
36%
of the 28 reviews we hold

Its one and two star share is 5 points above the typical installer in Chicago. Across Illinois, 54 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 28 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 Chicago, on one axis

0% rated 1–2★40%

Each mark is one company we hold in Chicago whose Google breakdown has been read, placed by its share of one and two star reviews. Windfree Solar Co 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 November 2025 · the company replied

    Would not hire this company ever again. Found them through a county-run group-buying program. Project management was distant/absent; I found several errors in the engineering documents. Communication within this company is abhorrent. Accounting repeatedly tried to overcharge me after I had signed change orders with the project manager. Installlers did NOT use ANY fall protection on the 20’ high roof. Installer used a tapping device on my main feeder cables that arced and melted the insulation. Good thing the whole house didn’t burn down!! Inverter failed after 5 months. Service manager stopped

  • 1★ · around August 2025 · the company replied

    The install process seemed very slow, I signed a contract on 4/12 and they didn't install the system until 9/22, so I missed that entire summer of solar production. Almost every bill they sent me had incorrect prices, so I needed to always check their math and then wait until they issued a corrected version. The bills were not itemized so it was difficult to track what I was even paying for. Add on electrical work was ridiculously overpriced. The sales team gave incorrect information regarding roofing tax breaks, which they must have know to be false. The SREC process is terrible; I had to rep

  • 2★ · around August 2025 · the company replied

    My experience with Windfree was/is poor. The communication from their end from start thru now has been severely lacking. It’s always reactive from them, never proactive. They had to come to my place almost a dozen times. Multiple times they no showed on me - no respect for my time. They would work on other jobs before completing mine. I called their CEO to voice my displeasure and he brushed me off with excuses and then never bothered to follow up with me ever again to check in and see if his team had made things right. They say they’ve done hundreds of jobs and my poor experience was a one-of

  • 5★ · around August 2026

    We had a great experience with Windfree Solar installing our residential system. Everyone we worked with was knowledgeable, friendly, and professional, and our questions were always answered promptly throughout the entire process. Would highly recommend working with them for your home's solar project!

  • 5★ · around August 2026

    Cynthia was great in diagnosing the issue and working with enphase to get the part still under warranty. Great support post installation.

  • 5★ · around August 2026

    Super tasty! Good coffee, good baked treats!

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 19
  • responsiveness 15
  • rebate assistance 8
  • system design 8
  • permit acquisition 4
  • quick installation 4
  • installation crew 4
  • professional installers 3
  • material sourcing 2
  • informative staff 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.

  • Established

    “headquartered in Chicago, Illinois, since 2009, Windfree Solar provides first-class…”

  • Licensed

    “Windfree has been a fully licensed, certified EPC in Illinois since…”

Elsewhere

When they say they are open

Sunday
Closed
Monday
9 AM to 5 PM
Tuesday
9 AM to 5 PM
Wednesday
9 AM to 5 PM
Thursday
9 AM to 5 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.

Other installers around Chicago

1–2★3★4★5★gauge 0–20%typical here, 3%

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.

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