139 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oak Brook: E. Scott Ostrowski: Awesome Options for Awesome People, CR Score 61/100; 5.0★ from 48 Google reviews; open 24/7.
Best for emergencies (open 24/7): Solar & Energy Experts LLC, posts 24/7 hours; ranked #3 of 139.
Most-reviewed: Tron Solar, 989 Google reviews at 4.8★, the most of 139 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
139 Oak Brook solar installers are ranked here by CR Score, from ten published factors. 16 are open 24/7, 86 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.9★ across 139 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | E. Scott Ostrowski: Awesome Options for Awesome People | 61 | 5.0★ (48) | Naperville, 9 mi away | 24/7 | Overall |
| 2 | SUNRISE SOLAR | 60 | 4.9★ (173) | Willowbrook, 6 mi away | Sat | — |
| 3 | Solar & Energy Experts LLC | 60 | 5.0★ (41) | Cicero, 10 mi away | 24/7 | Emergencies |
| 4 | Kapital Electric, Inc. | 60 | 4.8★ (715) | Bensenville, 11 mi away | — | — |
| 5 | Sunrun Solar | 60 | 4.1★ (822) | Des Plaines, 12 mi away | Sat · Sun | — |
| 6 | AweSun Power | 58 | 5.0★ (15) | Downers Grove, 9 mi away | 24/7 | — |
| 7 | Tron Solar | 58 | 4.8★ (989) | Vernon Hills, 27 mi away | — | Most reviews |
| 8 | Unity Solar Group | 58 | 4.8★ (107) | Oak Brook | — | — |
| 9 | Smart Sky Solar | 58 | 4.9★ (46) | Schaumburg, 18 mi away | Sat · Sun · Evenings | — |
| 10 | Illinois Solar Express, LLC | 58 | 4.9★ (31) | Elmhurst, 2 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Oak Brook
Based in Naperville, 9 mi away
Ranked #1 because of its Google rating and trade focus: 5.0★ from 48 Google reviews, listed on Google as “Solar energy company”.
Based in Willowbrook, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 173 Google reviews, listed on Google as “Solar energy company”.
Based in Cicero, 10 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Solar energy company”.
Based in Bensenville, 11 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 715 Google reviews, listed on Google as “Solar energy system service”.
Based in Des Plaines, 12 mi away
Ranked #5 because of its Google rating and trade focus: 4.1★ from 822 Google reviews, listed on Google as “Solar energy company”.
Based in Downers Grove, 9 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based in Vernon Hills, 27 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 989 Google reviews, the most in Oak Brook.
Based in Oak Brook
Ranked #8 because of its Google rating and trade focus: 4.8★ from 107 Google reviews, listed on Google as “Solar energy company”.
Based in Schaumburg, 18 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Solar energy company”.
Based in Elmhurst, 2 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 31 Google reviews, listed on Google as “Solar energy company”.
Based in Chicago, 12 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 72 Google reviews, listed on Google as “Solar energy company”.
Based in Franklin Park, 8 mi away
Ranked #12 because of its Google rating and review volume: 5.0★ from 134 Google reviews.
Based in Darien, 12 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in Skokie, 16 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Solar energy company”.
Based in Western Springs, 3 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based in Chicago, 19 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Solar energy company”.
Based in Buffalo Grove, 24 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 306 Google reviews, listed on Google as “Solar energy company”.
Based in Crest Hill, 12 mi away
Ranked #18 because of its Google rating and review volume: 4.8★ from 185 Google reviews.
Based in Cicero, 9 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based in Tinley Park, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Solar energy company”.
Based in Chicago, 16 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
Based in Chicago, 15 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 121 Google reviews, listed on Google as “Solar energy company”.
Based in Montgomery, 23 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Solar energy company”.
Based in Bolingbrook, 12 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
Based in Highland Park, 24 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Solar energy company”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 139 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Palos Solar Panel Installation | 56 | 5.0★ (22) | 11 mi |
| 27 | My Window Washing and Gutter Cleaning | 55 | 4.9★ (216) | 3 mi |
| 28 | Volt Home Pros | 55 | 4.9★ (62) | 24 mi |
| 29 | Semper Solr | 55 | 4.8★ (99) | 17 mi |
| 30 | Windfree Solar Co | 55 | 4.6★ (107) | 13 mi |
| 31 | Greencore Solar, Inc. | 55 | 5.0★ (7) | 11 mi |
| 32 | FreeWorld Electric & Solar | 55 | 4.9★ (58) | 14 mi |
| 33 | The Chicago Solar Energy Company | 55 | 5.0★ (5) | 7 mi |
| 34 | Green Home Makeover | 55 | 4.6★ (47) | 6 mi |
| 35 | SunPower® | 55 | 4.1★ (451) | 27 mi |
| 36 | GreenGrids | 55 | 4.7★ (33) | 28 mi |
| 37 | Solar Professionals of Illinois | 55 | 4.8★ (24) | 27 mi |
| 38 | Technique Tinting | 55 | 4.8★ (45) | 34 mi |
| 39 | Aeos Energy | 55 | 4.3★ (18) | 8 mi |
| 40 | Windy City Solar Group | 54 | 5.0★ (11) | 8 mi |
| 41 | Ailey Solar | 54 | 4.7★ (57) | 13 mi |
| 42 | Reficiency Solar | 54 | 4.7★ (37) | 8 mi |
| 43 | The Chicago Solar Energy Company | 54 | 5.0★ (3) | 7 mi |
| 44 | 1Earth Solar | 54 | 5.0★ (13) | 24 mi |
| 45 | Solar Services | 54 | 4.9★ (11) | 10 mi |
| 46 | Elegant Solar Inc | 54 | 5.0★ (6) | 15 mi |
| 47 | My Window Washing and Gutter Cleaning | 54 | 4.9★ (234) | 14 mi |
| 48 | The Chicago Solar Energy Company | 54 | 5.0★ (3) | 11 mi |
| 49 | Ilumen Solar | 54 | 4.9★ (78) | 28 mi |
| 50 | BB&C Solar Enterprises | 53 | 4.5★ (15) | 25 mi |
20 more solar installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| ACSS Energy | 5.0★ (2) | 3 mi |
| AJA Energies | 4.0★ (1) | 6 mi |
| Carlson Solar Energy | 5.0★ (1) | 7 mi |
| Continental Energy Solutions LLC | 5.0★ (2) | In Oak Brook |
| Energy Efficient Building Systems By Solarcrete | 5.0★ (2) | 6 mi |
| Evo Energy | 5.0★ (2) | 9 mi |
| Geothermal Energy Solutions, Inc. | 4.5★ (2) | 22 mi |
| Global SunPower | 1.0★ (1) | 14 mi |
| JD Pro Electric INC | 5.0★ (1) | 12 mi |
| Mammoth Roofing and Solar, Alsip, IL | 4.0★ (2) | 14 mi |
| Matrix Exteriors | 4.9★ (691) | In Oak Brook |
| ProWash | 5.0★ (2) | 23 mi |
| Solar Panels Installation Oak Park | 1.0★ (1) | 8 mi |
| Solar Service Solutions LLC | 5.0★ (2) | 31 mi |
| Solar SmartRoof by Powur | 5.0★ (2) | 24 mi |
| Solar Us Shop | 4.0★ (1) | 14 mi |
| Solar with Jason | 5.0★ (1) | 3 mi |
| Sunrun south chicago solutions | 1.0★ (2) | 15 mi |
| The Chicago Solar Energy Company | 5.0★ (1) | 8 mi |
| TruLight-Solar | 3.0★ (2) | 13 mi |
Typical prices in USD, adjusted for Illinois with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $26,020 | $29,430 | $32,010 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.95 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 139 Oak Brook solar installers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Oak Brook data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |