Ranked #1 because of its Google rating and trade focus: 4.9★ from 53 Google reviews, listed on Google as “Solar energy system service”.
- 4.9★ from 53 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun 9 AM–3 PM
30 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lahaina: Maui Sun Solar, CR Score 87/100; 4.9★ from 53 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Allens Plumbing, posts 24/7 hours; ranked #2 of 30.
Most-reviewed: Allens Plumbing, 720 Google reviews at 4.8★, the most of 30 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
30 Lahaina solar installers are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 14 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.9★ across 30 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Maui Sun Solar | 87 | 4.9★ (53) | Haiku-Pauwela, 2 mi away | Sat · Sun | Overall |
| 2 | Allens Plumbing | 86 | 4.8★ (720) | Kahului, 14 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Sunrun Solar | 85 | 4.6★ (79) | Kahului, 12 mi away | Sat · Sun | — |
| 4 | Maui Refresh llc | 81 | 4.9★ (71) | Kula, 2 mi away | Sat · Sun | — |
| 5 | WikiWiki Solar and Electric | 79 | 4.7★ (36) | Kahului, 14 mi away | Sat | — |
| 6 | Haleakala Solar & Roofing | 78 | 3.5★ (35) | Kahului, 14 mi away | Sat · Sun · Evenings | — |
| 7 | PIEZOELECTRIC LLC | 77 | 5.0★ (10) | Kula, 17 mi away | 24/7 | — |
| 8 | Maui Solar Pros Inc. | 77 | 5.0★ (8) | Haiku-Pauwela, 11 mi away | Sat | — |
| 9 | Aloha Exterior Cleaning | 77 | 4.9★ (17) | Kula, 24 mi away | 24/7 | — |
| 10 | HI PRESSHA LLC | 77 | 5.0★ (30) | Hawaiian Paradise Park, 37 mi away | Sat · Sun | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 53 Google reviews, listed on Google as “Solar energy system service”.
Based in Kahului, 14 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 720 Google reviews, the most Google reviews on this list (720).
Based in Kahului, 12 mi away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 79 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 2 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 71 Google reviews, open 7 days a week.
Based in Kahului, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 36 Google reviews, listed on Google as “Solar energy company”.
Based in Kahului, 14 mi away
Ranked #6 because of its Google rating and trade focus: 3.5★ from 35 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 17 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Haiku-Pauwela, 11 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 24 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 17 Google reviews, open 24/7.
Based in Hawaiian Paradise Park, 37 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Waihee-Waiehu, 22 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Kahului, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 57 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 2 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 7 days a week.
Based in Haiku-Pauwela, 20 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
Based in Haiku-Pauwela, 16 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Solar energy company”.
Based in Kahului, 15 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 18 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Solar energy system service”.
Based in Haiku-Pauwela, 14 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in Haiku-Pauwela, 22 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Lahaina
Ranked #20 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based in Kahului, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based in Kahului, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.2★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Haiku-Pauwela, 22 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Solar energy company”.
Based in Kahului, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.5★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based in Kula, 22 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
Typical prices in USD, adjusted for Hawaii with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $29,770 | $33,680 | $36,640 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 30 Lahaina 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 Lahaina 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 |