11 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Allendale: Agathon Solar, CR Score 81/100; 4.9★ from 38 Google reviews; open Saturdays until 3 PM.
Best for emergencies (open 24/7): The Solar Difference, posts 24/7 hours; ranked #2 of 11.
Most-reviewed: SunPower®, 103 Google reviews at 3.5★, the most of 11 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
11 Allendale solar installers are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 6 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.8★ across 11 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Agathon Solar | 81 | 4.9★ (38) | Grand Haven, 12 mi away | Sat | Overall |
| 2 | The Solar Difference | 80 | 5.0★ (10) | Fort Wayne, 25 mi away | 24/7 | Emergencies |
| 3 | Augustine Solar | 79 | 5.0★ (35) | Allendale | — | — |
| 4 | Kearns Brothers | 79 | 4.5★ (36) | Wyoming, 14 mi away | 24/7 | — |
| 5 | Tiger Solar | 79 | 4.9★ (65) | Comstock Park, 16 mi away | — | — |
| 6 | MI Solar And Roofing Pros | 75 | 4.8★ (27) | Allendale | Sat | — |
| 7 | SunPower® | 75 | 3.5★ (103) | Grand Rapids, 22 mi away | Sat · Evenings | Most reviews |
| 8 | The Green Panel | 71 | 4.5★ (17) | Byron Center, 17 mi away | — | — |
| 9 | Mitten Solar Consultants | 71 | 5.0★ (3) | Rockford, 15 mi away | Sat · Evenings | — |
| 10 | Portable Sun LLC | 69 | 4.6★ (37) | Grand Rapids, 14 mi away | — | — |
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 38 Google reviews, listed on Google as “Solar energy company”.
Based in Fort Wayne, 25 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Allendale
Ranked #3 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Solar energy company”.
Based in Wyoming, 14 mi away
Ranked #4 because of its Google rating and availability: 4.5★ from 36 Google reviews, open 24/7.
Based in Comstock Park, 16 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “Solar energy company”.
Based in Allendale
Ranked #6 because of its Google rating and review volume: 4.8★ from 27 Google reviews, 27 Google reviews.
Based in Grand Rapids, 22 mi away
Ranked #7 because of its Google rating and review volume: 3.5★ from 103 Google reviews, the most Google reviews on this list (103).
Based in Byron Center, 17 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based in Rockford, 15 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based in Grand Rapids, 14 mi away
Ranked #10 because of its Google rating and review volume: 4.6★ from 37 Google reviews, 37 Google reviews.
Based in Grand Rapids, 9 mi away
Ranked #11 because of its Google rating and trade focus: 2.6★ from 67 Google reviews, listed on Google as “Solar energy system service”.
Typical prices in USD, adjusted for Michigan 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 11 Allendale 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 Allendale 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 |