5 Best Solar Panel Providers in Chicago (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

By Brad Smith, Home Services Expert · ✓ Data verified August 2026 · 9 min read

Going solar in Chicago means picking a company you will likely deal with for years after the panels go up, not just on install day. The solar panel providers in Chicago below range from a 63-review specialist to one with 266 reviews and a 4.9 average, and three-tenths of a star separates the best and worst rated names here, which matters more than it sounds once you're relying on someone to answer the phone after the sale.

Short answer: Kaizan leads on review volume (4.9 stars, 266 reviews), followed closely by WindSoleil (4.9, 69 reviews) and RxSun (4.8, 126 reviews). Costs vary widely by system size and financing, so get a written, itemized quote from at least two providers before signing.

Jump to a business

1. Kaizan
2. RxSun
3. Windfree Solar Co
4. WindSoleil
5. Ailey Solar
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How Chicago's Solar Providers Compare

#	Business	Rating	Reviews	Best for
1	Kaizan	4.9 ★	266	Volume / most-reviewed	View ›
2	RxSun	4.8 ★	126	Financing & tax-credit timing	View ›
3	Windfree Solar Co	4.6 ★	115	Attic-routed conduit / aesthetics	View ›
4	WindSoleil	4.9 ★	69	Long-term relationship / repeat customers	View ›
5	Ailey Solar	4.8 ★	63	Whole-home energy audits	View ›

5 Best Solar Panel Providers in Chicago (2026)

Our top picks, reviewed

#1 Overall🕑 Open 6 days/wk

Kaizan

4.9266 Google reviews

Kaizan is a Chicago-headquartered solar and home improvement company offering residential and commercial solar panel installation and energy efficiency upgrades, including insulation and energy-efficient lighting. Its site describes an installation process that runs from panel selection through full setup, aiming to make solar accessible with competitive pricing. It is the most-reviewed solar company on this list by a wide margin.

What people praise

Highest review volume on this list at 266 reviews
Multiple reviewers describe a smooth, professional and communicative process from start to finish
Praised by name for a specific sales rep who answered questions thoroughly
Strong 4.9 average rating

Worth knowing

A small number of recent reviews describe serious scheduling and communication breakdowns, including a missed consultation appointment
Get every cost, upgrade requirement and financing term in writing before signing anything

Reputation scorecardrank in Chicago

Rating4.9 / 5

Review volume266 · 97th

Confidencehigh

Recency4 weeks ago

Info completenesssite · phone · hours

Rating breakdown98% 5-star

✓ VerifiedSource: Google

Our take: It has the deepest review history of any solar provider on this page and a strong average rating, but a handful of very recent, very negative reviews stand out sharply against the rest. Get a fully itemized written quote and confirm every term before committing.

Website +1773-900-1039 Directions

#2🕑 Open 5 days/wk↩ Responds to reviews

RxSun

4.8126 Google reviews

RxSun is a residential solar energy consulting company based on North Elston Avenue serving Illinois, Michigan, Wisconsin and Florida homeowners. Its NABCEP-certified team handles the full process from home assessment through design, financing and installation, and its site emphasizes helping customers understand savings and available incentives. Multiple reviewers describe being walked through financing and tax-credit timing in detail before signing.

What people praise

NABCEP-certified solar professionals guiding the process
Reviewers highlight help timing installation to capture year-end tax incentives
Post-install support cited by name, including following up on an unrelated roof leak until it was resolved
Sales reps described as informative without being pushy

Worth knowing

One reviewer notes a gap in communication after the initial deposit before work resumed
A rushed installation season around tax-credit deadlines has caused minor scheduling delays for some customers

Reputation scorecardrank in Chicago

Rating4.8 / 5

Review volume126 · 87th

Confidencemoderate

Recency2 months ago

Info completenesssite · phone · hours

Rating breakdown90% 5-star

✓ VerifiedSource: Google

Our take: A strong pick if incentive timing and financing guidance matter to you. The rating sits just under the top of this list, largely on a few reports of slower turnaround during its busiest season.

Website Book now +1800-607-9786 Directions

2211 N Elston Ave Ste 208, Chicago, IL 60614

#3🕑 Open 5 days/wk↩ Responds to reviews

Windfree Solar Co

4.6115 Google reviews

Windfree Solar Co is a Chicago solar energy company on West Foster Avenue serving residential, commercial and municipal customers, alongside energy storage systems. Its site emphasizes long-term, sustainable solar solutions built by an industry-specialist team. A recurring theme in reviews is the option to route conduit through the attic instead of on the outside of the roof, avoiding a visible eyesore other installers leave behind.

What people praise

Reviewers specifically praise the option to run conduit through the attic for a cleaner look
Uses a separately licensed, well-reviewed electrician for the electrical portion of installs
Sales reps described as unhurried and non-pushy on pricing
Detailed reviews describe clear day-by-day communication during install

Worth knowing

The lowest rating on this list at 4.6, with a couple of reviewers citing slow follow-through connecting the system after inspection
One reviewer reports losing over a month of solar credit due to a delayed grid connection

Reputation scorecardrank in Chicago

Rating4.6 / 5

Review volume115 · 82th

Confidencemoderate

Recency8 weeks ago

Info completenesssite · phone · hours

Rating breakdown83% 5-star

✓ VerifiedSource: Google

Our take: Worth a look specifically for the cleaner attic-routed install option, though it ranks lowest here on rating, largely due to a handful of reports about delays getting the system fully connected and generating credit.

Website +1312-588-6953 Directions

5022 W Foster Ave, Chicago, IL 60630

#4🕑 Open 6 days/wk↩ Responds to reviews

WindSoleil

4.969 Google reviews

WindSoleil is a Chicago solar and wind energy company on North Trumbull Avenue offering solar panel and wind turbine installation, solar thermal systems, energy audits, solar pool heating, and repair and service for existing solar systems. Several reviewers describe using the company for a second round of panels years after their first install, a sign of return business rather than one-off jobs. It is a smaller operation with an owner, Ted, frequently named directly in reviews.

What people praise

Highest rating tied on this list at 4.9
Multiple reviewers used the company twice, years apart, for separate installations
Owner described as knowledgeable, responsive and available for follow-up questions
Also handles solar system repair and service, not just new installs

Worth knowing

Smallest review base of the top names on this list
One reviewer reports an SREC-claim issue with the state that took time to resolve

Reputation scorecardrank in Chicago

Rating4.9 / 5

Review volume69 · 76th

Confidenceearly

Recency4 weeks ago

Info completenesssite · phone · hours

Rating breakdown99% 5-star

✓ VerifiedSource: Google

Our take: A strong pick if you value a long-term relationship with a smaller, owner-led shop rather than a large volume installer, though its review base is still thinner than the bigger names here.

Website +1224-307-4057 Directions

401 N Trumbull Ave # D, Chicago, IL 60624

#5🕑 Open 5 days/wk↩ Responds to reviews

Ailey Solar

4.863 Google reviews

Ailey Solar is a Chicago solar installer on West Pershing Road that has served the area since 2007, offering residential, commercial and non-profit solar installation plus a service it calls Detach and Reset for existing solar owners who need roof access. Its site highlights in-house installations and industry-leading warranties. Reviewers repeatedly mention a broader energy audit that identifies savings beyond the panels themselves.

What people praise

Energy audits cited by reviewers as finding savings opportunities beyond solar alone
Transparent, consultative sales process with no pressure to overbuy the system
Patient handling of HOA approval requirements in at least one documented case
Multiple reviewers report zero issues years after installation

Worth knowing

Smaller review base than the top names on this list
HOA or permitting requirements can add delay before installation starts, as with any provider

Reputation scorecardrank in Chicago

Rating4.8 / 5

Review volume63 · 71th

Confidenceearly

Recency8 weeks ago

Info completenesssite · phone · hours

Rating breakdown90% 5-star

✓ VerifiedSource: Google

Our take: A solid, longer-tenured option best suited to homeowners who want a full energy-efficiency review alongside the solar installation itself, not just panels on the roof.

Website +1773-492-1294 Directions

1965 W Pershing Rd, Chicago, IL 60609

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How we score

Every number on this page comes from public Google data on the date shown, not from opinion or payment. Rating is the business’s live Google star average. Review volume is how many customers have rated them, ranked against other Chicago solar providers. Confidence weighs the rating by that volume, so a 4.9 from hundreds of reviews carries more weight than a 5.0 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

How much do solar panels cost in Chicago? (2026)

Solar installation cost in Chicago depends on system size, roof complexity, whether battery storage is included, and which financing or tax-incentive path you take. Providers on this page mention federal tax credits and Illinois’s Adjustable Block Program as factors that can significantly reduce the out-of-pocket cost, but the final number depends on your specific home and usage.

Serving all of Chicago

The solar providers above serve Chicago and the surrounding suburbs, and several also cover parts of Illinois, Michigan, Wisconsin and Florida. Searching for a solar panel provider near me? Every listing below shows a live phone number and directions so you can reach the closest option fast.

What to ask before you hire a solar panel provider

Is the quote a flat price or does it depend on a technical site visit later?
What tax credits or state incentive programs am I eligible for, and who handles the paperwork?
Will conduit run outside the roofline or through the attic?
What warranty covers the panels, the inverter, and the labor separately?
Who handles the utility interconnection agreement, and how long does that typically take?
Will you provide the full itemized quote in writing before I sign?

Frequently asked questions

How did you choose these solar panel providers?

We started from every solar company in Chicago with a public Google presence, then ranked by rating, review volume, consistency and recency. See How we score above.

Are these rankings paid?

No. Rankings come from the public Google data in the scorecard. A business can pay to be a Featured Partner, which adds a badge and top placement, but that never changes another business’s score or position on the underlying data.

How often is this updated?

The data carries a verified date (August 2026 on this page). We refresh listings periodically so ratings and review counts stay current.

How long does a solar installation take in Chicago?

Reviewers describe total timelines from contract signing to full utility approval ranging from about two and a half months to longer, depending on permitting, HOA review, and how busy the installer is around tax-credit deadlines.

Does going solar in Chicago actually lower my electric bill?

Reviewers across multiple providers report meaningfully lower monthly bills after installation, though the exact savings depend on system size, roof orientation, and your household’s usage.

The bottom line

Kaizan has the deepest track record on this list, but its recent reviews are more mixed than the others, so read the fine print closely. WindSoleil and RxSun both carry strong, consistent ratings with fewer red flags. Whichever you choose, get the full written quote, warranty terms and incentive paperwork responsibilities spelled out before signing.

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