13 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Hilton Head Island: Old Coast Heating & Air Conditioning, CR Score 85/100; 4.8★ from 1,114 Google reviews; open 24/7.
Best for emergencies (open 24/7): Solar Specialist Payton Greenway, posts 24/7 hours; ranked #2 of 13.
Most-reviewed: Mr. Softwash Power Shower LLC, 237 Google reviews at 4.9★, the most of 13 ranked after Old Coast Heating & Air Conditioning; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Hilton Head Island solar installers are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 10 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.8★ across 13 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Old Coast Heating & Air Conditioning | 85 | 4.8★ (1,114) | Savannah, 23 mi away | 24/7 | Overall |
| 2 | Solar Specialist Payton Greenway | 83 | 4.8★ (38) | Pooler, 31 mi away | 24/7 | Emergencies |
| 3 | 361 Technologies | 82 | 5.0★ (79) | Port Wentworth, 20 mi away | Sat · Evenings | — |
| 4 | Savannah Solar Power | 81 | 5.0★ (15) | Savannah, 22 mi away | Sat · Sun | — |
| 5 | Old Coast Heating & Air Conditioning | 80 | 5.0★ (8) | Hilton Head Island | 24/7 | — |
| 6 | The Solar Educator | 78 | 5.0★ (11) | Bluffton, 15 mi away | Sat · Evenings | — |
| 7 | Mr. Softwash Power Shower LLC | 78 | 4.9★ (237) | Beaufort, 14 mi away | Sat | Most reviews |
| 8 | Hilton Head Solar & Roofing | 77 | 4.5★ (56) | Bluffton, 16 mi away | — | — |
| 9 | Sunder Energy - Savannah | 76 | 4.6★ (8) | Savannah, 22 mi away | Sat · Evenings | — |
| 10 | GOL SOLAR | 75 | 4.7★ (12) | Rincon, 30 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,114 Google reviews, the most Google reviews on this list (1,114).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pooler, 31 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 38 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Port Wentworth, 20 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 79 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Savannah, 22 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hilton Head Island
Ranked #5 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluffton, 15 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beaufort, 14 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 237 Google reviews, 237 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluffton, 16 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 56 Google reviews, listed on Google as “Roofing contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Savannah, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rincon, 30 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Savannah, 25 mi away
Ranked #11 because of its Google rating and review volume: 4.7★ from 84 Google reviews, 84 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beaufort, 17 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Savannah, 24 mi away
Ranked #13 because of its Google rating and review volume: 4.6★ from 41 Google reviews, 41 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
19 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 |
|---|---|---|
| Alpha Omega Construction Group, Inc. | 31 mi | |
| Critter Removal Services | 8 mi | |
| FabTech Solar Solutions | 29 mi | |
| Go Green With Solar | 31 mi | |
| Go Green With Solar | 31 mi | |
| Go Solar Power | 5.0★ (1) | 6 mi |
| LGCY Power Solar Consultant | 3.0★ (2) | 33 mi |
| LifeWise Solar | 8 mi | |
| Lucent Energy Savannah Solar | 25 mi | |
| PowerLease Solar | 27 mi | |
| Rodexi Exteriors LLC | 16 mi | |
| Solar Energy Partners Savannah | 26 mi | |
| Solar Wolf Energy | 32 mi | |
| South Carolina Wind and Solar | 22 mi | |
| South Carolina Wind Turbines | 27 mi | |
| Tesla Solar | 5.0★ (2) | 27 mi |
| THE SOLAR GUYS CO | 32 mi | |
| Unique Solar | In Hilton Head Island | |
| Vital Solar Systems INC | In Hilton Head Island |
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 13 Hilton Head Island 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 Hilton Head Island 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 |