Ranked #1 in Downers Grove
Based in Naperville, 8 mi away
89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 48 Google reviews, open 24/7.
- 5.0★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Solar Installers in Downers Grove, IL (2026)
141 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Downers Grove: E. Scott Ostrowski: Awesome Options for Awesome People, CR Score 89/100; 5.0★ from 48 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Solar & Energy Experts LLC, posts 24/7 hours; ranked #2 of 141.
- 26
Most-reviewed: Tron Solar, 989 Google reviews at 4.8★, the most of 141 ranked; ranked #26.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
141 Downers Grove solar installers are ranked here by CR Score, from 8 published factors. 16 are open 24/7, 87 open Saturdays and 34 open Sundays, based on posted hours. The median Google rating is 4.9★ across 141 rated businesses.
Top 10 solar installers in Downers Grove at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | E. Scott Ostrowski: Awesome Options for Awesome People | 89 | 5.0★ (48) | Naperville, 8 mi away | 24/7 | Overall |
| 2 | Solar & Energy Experts LLC | 88 | 5.0★ (41) | Cicero, 10 mi away | 24/7 | Emergencies |
| 3 | Thrive Solar | 87 | 5.0★ (57) | Downers Grove | Sat · Sun · Evenings | — |
| 4 | AweSun Power | 87 | 5.0★ (15) | Downers Grove | 24/7 | — |
| 5 | Ananta Energy Source | 85 | 5.0★ (10) | Darien, 8 mi away | 24/7 | — |
| 6 | SUNRISE SOLAR | 84 | 4.9★ (173) | Willowbrook, 5 mi away | Sat | — |
| 7 | JD Pro Electric Inc | 84 | 5.0★ (134) | Franklin Park, 12 mi away | 24/7 | — |
| 8 | Mr. Electric of Greater Naperville | 84 | 4.8★ (185) | Crest Hill, 9 mi away | 24/7 | — |
| 9 | Solar by Dave Stanton | 83 | 5.0★ (5) | Bolingbrook, 8 mi away | 24/7 | — |
| 10 | Sunrun Solar | 83 | 4.1★ (822) | Des Plaines, 15 mi away | Sat · Sun | — |
The 141 best solar installers in Downers Grove, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Cicero, 10 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 41 Google reviews, open 24/7.
- 5.0★ from 41 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#3 Thrive Solar
Based in Downers Grove
87/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 57 Google reviews
- Hours
- Mon–Fri 9 AM–8 PM · Sat 10 AM–7 PM · Sun 9 AM–8 PM
#4 AweSun Power
Based in Downers Grove
87/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 24/7.
- 5.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Darien, 8 mi away
85/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
- 5.0★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Willowbrook, 5 mi away
84/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 173 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 173 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 825 75th St UNIT E, Willowbrook, IL 60527
Based in Franklin Park, 12 mi away
84/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 134 Google reviews, open 24/7.
- 5.0★ from 134 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9230 Grand Ave, Franklin Park, IL 60131
Based in Crest Hill, 9 mi away
84/100CR ScoreRanked #8 because of its Google rating and availability: 4.8★ from 185 Google reviews, open 24/7.
- 4.8★ from 185 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Bolingbrook, 8 mi away
83/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 498 W Boughton Rd, Bolingbrook, IL 60440
#10 Sunrun Solar
Based in Des Plaines, 15 mi away
83/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.1★ from 822 Google reviews, listed on Google as “Solar energy company”.
- 4.1★ from 822 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 2291 & 2309 S Mt Prospect Rd, Des Plaines, IL 60018
#11 Smart Sky Solar
Based in Schaumburg, 18 mi away
83/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 46 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun 8 AM–5 PM
- Address
- 1901 N Roselle Rd Suit 800, Schaumburg, IL 60195
Based in Montgomery, 21 mi away
82/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Bensenville, 13 mi away
82/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 715 Google reviews, listed on Google as “Solar energy system service”.
- 4.8★ from 715 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 1270 Mark St, Bensenville, IL 60106
Based in Downers Grove
81/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
Based in Western Springs, 6 mi away
81/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 4736 Grand Ave, Western Springs, IL 60558
#16 Adams
Based in Morris, 36 mi away
81/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 379 Google reviews, open 24/7.
- 4.8★ from 379 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1299 Leah Rd Suite A, Morris, IL 60450
Based in Chicago, 20 mi away
81/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3152 W Devon Ave APT 2D, Chicago, IL 60659
#18 GreenGrids
Based in Shorewood, 25 mi away
80/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 33 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 33 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 21403 Somerset St, Shorewood, IL 60404
#19 WindSoleil
Based in Chicago, 16 mi away
80/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 72 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 72 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 401 N Trumbull Ave # D, Chicago, IL 60624
#20 Triumph Solar
Based in Tinley Park, 20 mi away
80/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 49 Google reviews
- Hours
- Mon–Thu 7 AM–7 PM · Fri 9 AM–7 PM · Sat 7 AM–7 PM · Sun closed
- Address
- 8527 Scheer Dr, Tinley Park, IL 60487
Based in Wood Dale, 12 mi away
80/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 955 Lively Blvd, Wood Dale, IL 60191
#22 GoSolar
Based in Cicero, 10 mi away
80/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 25 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–5 PM · Sun closed
Based in Elmhurst, 4 mi away
80/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 31 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 31 Google reviews
- Hours
- Mon 9 AM–6 PM · Tue–Fri 9 AM–8 PM · Sat 9 AM–6 PM · Sun closed
- Address
- 1 Mid America Plaza 3rd Floor, Oakbrook Terrace, IL 60181
#24 1Earth Solar
Based in Joliet, 21 mi away
80/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 2108 McDonough St, Joliet, IL 60436
Based in Skokie, 20 mi away
80/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 50 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 4939 Oakton St, Skokie, IL 60077
Solar installers ranked #26 to #50
#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 141 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Tron Solar | 80 | 4.8★ (989) | 28 mi |
| 27 | Solar Professionals of Illinois | 80 | 4.8★ (24) | 27 mi |
| 28 | Priority Solar Installation | 80 | 4.9★ (61) | 23 mi |
| 29 | Neighborhood Electric Inc | 79 | 4.9★ (98) | 11 mi |
| 30 | My Window Washing and Gutter Cleaning | 79 | 4.9★ (216) | 3 mi |
| 31 | PB Solar Panel Installer | 79 | 5.0★ (60) | 27 mi |
| 32 | Unity Solar Group | 79 | 4.8★ (107) | 4 mi |
| 33 | T&J Prestige | 79 | 4.9★ (38) | 1 mi |
| 34 | Volt Home Pros | 79 | 4.9★ (62) | 24 mi |
| 35 | Technique Tinting | 79 | 4.8★ (45) | 34 mi |
| 36 | Elegant Solar Inc | 79 | 5.0★ (6) | 18 mi |
| 37 | The Chicago Solar Energy Company | 78 | 5.0★ (3) | 11 mi |
| 38 | BB&C Solar Enterprises | 78 | 4.5★ (15) | 26 mi |
| 39 | Palos Solar Panel Installation | 78 | 5.0★ (22) | 11 mi |
| 40 | The Chicago Solar Energy Company | 78 | 5.0★ (3) | 15 mi |
| 41 | Certasun | 78 | 4.8★ (306) | 26 mi |
| 42 | Semper Solaris | 78 | 5.0★ (6) | In Downers Grove |
| 43 | Solar Services | 77 | 4.9★ (11) | 8 mi |
| 44 | My Window Washing | 77 | 4.9★ (164) | 11 mi |
| 45 | Illinois Solar Power | 77 | 5.0★ (5) | 36 mi |
| 46 | Ace GC Exteriors | 77 | 4.7★ (32) | 25 mi |
| 47 | My Window Washing and Gutter Cleaning | 77 | 4.9★ (234) | 18 mi |
| 48 | Tesla Solar | 77 | 4.0★ (4) | 32 mi |
| 49 | Windy City Solar Group | 77 | 5.0★ (11) | 12 mi |
| 50 | RxSun | 77 | 4.8★ (121) | 19 mi |
Also serving Downers Grove
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 |
| Berg Home Improvements | 4.8★ (118) | In Downers Grove |
| CertaBuilt Roofing+Exteriors | 5.0★ (30) | In Downers Grove |
| Continental Energy Solutions LLC | 5.0★ (2) | 5 mi |
| Econotemp Inc | 4.9★ (231) | In Downers Grove |
| Energy Efficient Building Systems By Solarcrete | 5.0★ (2) | 11 mi |
| Evo Energy | 5.0★ (2) | 8 mi |
| Geothermal Energy Solutions, Inc. | 4.5★ (2) | 24 mi |
| Mammoth Roofing and Solar, Alsip, IL | 4.0★ (2) | 16 mi |
| MWSLR - Midwest Solar | 5.0★ (2) | 8 mi |
| ProWash | 5.0★ (2) | 20 mi |
| Roderick Brown - Solterra Powered by Vivint Solar | 1.0★ (1) | In Downers Grove |
| Royal Craft - Roofing, Siding, Windows and Exteriors | 5.0★ (77) | In Downers Grove |
| Solar Service Solutions LLC | 5.0★ (2) | 28 mi |
| Solar SmartRoof by Powur | 5.0★ (2) | 22 mi |
| Solar with Jason | 5.0★ (1) | 2 mi |
| Sunrun south chicago solutions | 1.0★ (2) | 17 mi |
| TruLight-Solar | 3.0★ (2) | 17 mi |
| Volt Electric Inc. | 3.9★ (7) | In Downers Grove |
How much do solar installers cost in Downers Grove?
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 |
How we ranked Downers Grove solar installers
We scored 141 Downers Grove solar installers on 8 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. Unknown factors are left out of the score, 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 Downers Grove data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Solar installers in Downers Grove: frequently asked questions
Who is the best solar installer in Downers Grove?
By CR Score, the highest-ranked solar installer in Downers Grove, IL is E. Scott Ostrowski: Awesome Options for Awesome People with a CR Score of 89/100. It has 5.0★ from 48 Google reviews. It is open 24/7. Solar & Energy Experts LLC (#2) and Thrive Solar (#3) follow. We ranked 141 solar installers on 8 factors, last updated October 22, 2026.
How many solar installers are there in Downers Grove?
ContractorsRanked ranks 141 solar installers serving Downers Grove, IL. 4 of them are based in Downers Grove; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which solar installers in Downers Grove are open 24/7?
16 ranked solar installers in Downers Grove post 24/7 hours. The highest-ranked are E. Scott Ostrowski: Awesome Options for Awesome People (#1), Solar & Energy Experts LLC (#2) and AweSun Power (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Downers Grove work on weekends?
87 of 141 ranked solar installers post Saturday hours and 34 post Sunday hours. The highest-ranked open Saturdays are E. Scott Ostrowski: Awesome Options for Awesome People (#1), Solar & Energy Experts LLC (#2) and Thrive Solar (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Downers Grove?
Solar panel installation typically costs $26,020 to $32,010, with $29,430 typical (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)). The range is adjusted for Illinois. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Downers Grove solar installers have?
The median Google rating among 141 rated solar installers in Downers Grove is 4.9★, with a median of 23 reviews. Tron Solar has the most, 989 reviews, and ranks #26. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank solar installers?
Each solar installer gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do solar installers outside Downers Grove count in this ranking?
Yes, if they are within 40 mi of the Downers Grove city center, our service radius for solar installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Downers Grove
- October 2026: CR Scores recalculated for 141 solar installers serving Downers Grove.
- October 2026: 2 duplicate listings merged.
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