30 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Gantt: Service Solar LLC, CR Score 61/100; 5.0★ from 62 Google reviews.
Best for emergencies (open 24/7): Feazel Roofing, posts 24/7 hours; ranked #5 of 30.
Most-reviewed: Clear View Pressure Washing, 186 Google reviews at 5.0★, the most of 30 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
30 Gantt solar installers are ranked here by CR Score, from ten published factors. 4 are open 24/7, 15 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 5.0★ across 30 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Service Solar LLC | 61 | 5.0★ (62) | Gantt | — | Overall |
| 2 | Gold Path Solar | 60 | 5.0★ (43) | Greenville, 8 mi away | Sat | — |
| 3 | Perfection Solar | 60 | 5.0★ (14) | Greenville, 3 mi away | Sat · Sun · Evenings | — |
| 4 | KEE Roofing & Solar | 59 | 4.9★ (105) | Greenville, 2 mi away | Sat | — |
| 5 | Feazel Roofing | 59 | 4.9★ (111) | Greenville, 10 mi away | 24/7 | Emergencies |
| 6 | Detail Solar LLC | 59 | 4.9★ (60) | Taylors, 10 mi away | — | — |
| 7 | Upstate RCC Solar | 59 | 5.0★ (83) | Greer, 17 mi away | — | — |
| 8 | Clear View Pressure Washing | 58 | 5.0★ (186) | Anderson, 15 mi away | Sat · Sun · Evenings | Most reviews |
| 9 | LGCY Power | 57 | 4.7★ (31) | Greenville, 4 mi away | — | — |
| 10 | American Owned Energy | 57 | 4.3★ (12) | Greenville, 3 mi away | Sat | — |
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: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 8 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 3 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ 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 Greenville, 2 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 105 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 10 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 111 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Taylors, 10 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 17 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anderson, 15 mi away
Ranked #8 because of its Google rating and review volume: 5.0★ from 186 Google reviews, the most in Gantt.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 3 mi away
Ranked #10 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Piedmont, 3 mi away
Ranked #11 because of its Google rating and review volume: 4.8★ from 132 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 7 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 6 mi away
Ranked #13 because of its Google rating and trade focus: 4.4★ 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 Greer, 8 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenville, 3 mi away
Ranked #15 because of its Google rating and availability: 4.7★ from 12 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gantt
Ranked #16 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Greenville, 7 mi away
Ranked #17 because of its Google rating and trade focus: 1.6★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Greenville, 11 mi away
Ranked #18 because of its Google rating and review volume: 4.7★ from 147 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clemson, 25 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 27 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Spartanburg, 24 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greer, 13 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boiling Springs, 29 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 21 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Five Forks, 9 mi away
Ranked #24 because of its Google rating and review volume: 4.8★ from 16 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mills River, 36 mi away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #30, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Solar Greenville by Appalachian Energy Solutions | 51 | 5.0★ (5) | 11 mi |
| 27 | Benton Green Energy | 50 | 4.6★ (23) | 5 mi |
| 28 | Peak Roofing & Solar | 50 | 5.0★ (5) | 16 mi |
| 29 | RICE Renewables - Solar Panel Company & Solar Power Generators | 50 | 2.3★ (3) | 17 mi |
| 30 | My Energy Masters | 47 | 5.0★ (4) | 7 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 |
|---|---|---|
| Ace Solar & Roofing Greenville | 5.0★ (1) | 8 mi |
| Carolina Solar By the Sunshine | 3 mi | |
| Carolina Stellar Solar | 4 mi | |
| Composite Solar | 5 mi | |
| Directional Solar | 1.0★ (1) | 30 mi |
| Earthwave Renewables | 4 mi | |
| EcoGen America | 4 mi | |
| Foothills Solar Plus | 3 mi | |
| Freedom Energy Soulutions SC Solar & Roofing | 5.0★ (1) | 27 mi |
| Green NRG | 1.5★ (2) | 6 mi |
| Greenville Solar | 5 mi | |
| Greenville Solar Solutions | 3.0★ (2) | 4 mi |
| Highland Rigs | 5.0★ (1) | 8 mi |
| Prime Solar | 5.0★ (2) | 17 mi |
| S-Tek Building Solutions | 1.0★ (2) | 29 mi |
| Socterra | 3 mi | |
| Solar Energy Partners Greenville | 4 mi | |
| Southern Current LLC | 2.0★ (1) | 8 mi |
| Upstate Solar | 4 mi | |
| Viper Solar & Roofing | In Gantt |
Typical prices in USD, adjusted for South Carolina with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $27,400 | $30,990 | $33,710 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.00 South Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 30 Gantt 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 Gantt 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 |