36 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Alamo: RGV Solar, CR Score 86/100; 4.7★ from 159 Google reviews; open Saturdays until 8 PM.
Best for emergencies (open 24/7): Your Solar Liaison, posts 24/7 hours; ranked #2 of 36.
Most-reviewed: StarAlt Solar, 70 Google reviews at 4.3★, the most of 36 ranked after RGV Solar; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
36 Alamo solar installers are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 21 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.8★ across 36 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | RGV Solar | 86 | 4.7★ (159) | Mission, 10 mi away | Sat · Evenings | Overall |
| 2 | Your Solar Liaison | 86 | 4.5★ (42) | Pharr, 6 mi away | 24/7 | Emergencies |
| 3 | Unlimited Solar & Roofing | 84 | 5.0★ (5) | La Homa, 14 mi away | 24/7 | — |
| 4 | Solergy | 83 | 4.7★ (46) | McAllen, 6 mi away | Sat | — |
| 5 | Evergreen Home Energy | 83 | 4.8★ (35) | Weslaco, 10 mi away | Sat · Evenings | — |
| 6 | StarAlt Solar | 83 | 4.3★ (70) | McAllen, 6 mi away | Sat | Most reviews |
| 7 | Tikun Olam Services Inc | 82 | 5.0★ (23) | McAllen, 9 mi away | Sat | — |
| 8 | Solur Power | 81 | 5.0★ (4) | McAllen, 9 mi away | 24/7 | — |
| 9 | Genesis Home Pro | 80 | 5.0★ (11) | Edinburg, 7 mi away | Sat · Evenings | — |
| 10 | NRG Energy para casas y business mcallen tx | 80 | 4.5★ (17) | McAllen, 7 mi away | Sat · Evenings | — |
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 review volume: 4.7★ from 159 Google reviews, the most Google reviews on this list (159).
Based in Pharr, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.5★ from 42 Google reviews, listed on Google as “Solar energy company”.
Based in La Homa, 14 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based in McAllen, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 46 Google reviews, listed on Google as “Solar energy company”.
Based in Weslaco, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 35 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.3★ from 70 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 9 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 9 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based in Edinburg, 7 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based in San Juan, 3 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based in Mission, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.1★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in Edinburg, 7 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based in Mission, 14 mi away
Ranked #14 because of its Google rating and trade focus: 4.0★ from 33 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 9 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy system service”.
Based in Weslaco, 8 mi away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 7 mi away
Ranked #17 because of its Google rating and trade focus: 4.4★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 9 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Weslaco, 10 mi away
Ranked #19 because of its Google rating and trade focus: 4.5★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 8 mi away
Ranked #20 because of its Google rating and review volume: 4.6★ from 53 Google reviews, 53 Google reviews.
Based in Mission, 10 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based in Weslaco, 10 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 6 mi away
Ranked #23 because of its Google rating and trade focus: 4.0★ from 21 Google reviews, listed on Google as “Solar energy company”.
Based in McAllen, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based in Alamo
Ranked #25 because of its Google rating and trade focus: 4.6★ from 26 Google reviews, listed on Google as “Window installation service”.
Typical prices in USD, adjusted for Texas with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $25,490 | $28,830 | $31,360 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.93 West South Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 36 Alamo 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 Alamo 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 |