17 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Greenville: Route 66 Solar, CR Score 58/100; 4.9★ from 119 Google reviews; open evenings.
Best for emergencies (open 24/7): All Around Tree Care Services LLC, posts 24/7 hours; ranked #6 of 17.
Most-reviewed: eEquals Solar, 140 Google reviews at 4.2★, the most of 17 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Greenville solar installers are ranked here by CR Score, from ten published factors. 2 are open 24/7, 4 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.7★ across 17 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Route 66 Solar | 58 | 4.9★ (119) | Edwardsville, 30 mi away | Evenings | Overall |
| 2 | Freedom Forever | 56 | 4.7★ (117) | Mascoutah, 31 mi away | — | — |
| 3 | eEquals Solar | 55 | 4.2★ (140) | Edwardsville, 30 mi away | — | Most reviews |
| 4 | GRID LLC | 54 | 4.7★ (14) | Highland, 17 mi away | Sat | — |
| 5 | Resolute Energy Solutions | 54 | 5.0★ (6) | Highland, 9 mi away | Sat | — |
| 6 | All Around Tree Care Services LLC | 53 | 4.8★ (66) | Mascoutah, 35 mi away | 24/7 | Emergencies |
| 7 | LMD Solar, LLC | 53 | 5.0★ (11) | Hillsboro, 18 mi away | — | — |
| 8 | ARF Solar LLC | 52 | 4.9★ (28) | East Alton, 36 mi away | — | — |
| 9 | SunSent Solar | 49 | 4.7★ (9) | Fairview Heights, 37 mi away | — | — |
| 10 | Solarships | 49 | 4.7★ (13) | Hillsboro, 19 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 119 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mascoutah, 31 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 117 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edwardsville, 30 mi away
Ranked #3 because of its Google rating and review volume: 4.2★ from 140 Google reviews, the most in Greenville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Highland, 17 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Highland, 9 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mascoutah, 35 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 66 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 18 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Alton, 36 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairview Heights, 37 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 9 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 19 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vandalia, 18 mi away
Ranked #11 because of its Google rating and review volume: 4.6★ from 34 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairview Heights, 36 mi away
Ranked #12 because of its Google rating and review volume: 3.5★ from 24 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mascoutah, 36 mi away
Ranked #13 because of its Google rating and trade focus: 4.3★ from 24 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Collinsville, 36 mi away
Ranked #14 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Swansea, 37 mi away
Ranked #15 because of its Google rating and review volume: 5.0★ from 4 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Edwardsville, 31 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Alton, 38 mi away
Ranked #17 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “Electrician”.
Based on 8 of 10 factors; credentials and recency not yet collected.
11 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 |
|---|---|---|
| Brighter Days Solar | 22 mi | |
| Clean Credits | 36 mi | |
| Energy preserve | 30 mi | |
| Hunter Solar Technologies | 18 mi | |
| Martin Solar | 36 mi | |
| Midwest Power Partners LLC | 19 mi | |
| Premier Energy Group | 5.0★ (1) | 30 mi |
| Simply Solar Illinois | 21 mi | |
| Solar City STL Illinois | 5.0★ (1) | 39 mi |
| Supreme Solar Cleaning | 5.0★ (1) | 22 mi |
| The Power Company | 1.0★ (1) | 38 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 17 Greenville 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 Greenville 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 |