12 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Corunna: Four Seasons Kanga Roof, CR Score 55/100; 4.8★ from 953 Google reviews; open 24/7.
Best for emergencies (open 24/7): Express Roofing and Solar of Washington, posts 24/7 hours; ranked #6 of 12.
Most-reviewed: ESCON Power Solutions, 136 Google reviews at 4.9★, the most of 12 ranked after Four Seasons Kanga Roof; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
12 Corunna solar installers are ranked here by CR Score, from ten published factors. 3 are open 24/7, 5 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 12 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Four Seasons Kanga Roof | 55 | 4.8★ (953) | Roseville, 60 km away | 24/7 | Overall |
| 2 | ESCON Power Solutions | 54 | 4.9★ (136) | Clinton Township, 54 km away | — | Most reviews |
| 3 | Solar ReAction LLC | 51 | 4.2★ (15) | Clinton Township, 52 km away | — | — |
| 4 | Orange Cell Solar | 51 | 5.0★ (9) | Auburn Hills, 54 km away | Sat | — |
| 5 | Asbury Roofing & Solar | 50 | 4.9★ (61) | Rochester, 61 km away | Sat · Evenings | — |
| 6 | Express Roofing and Solar of Washington | 49 | 4.0★ (4) | Auburn Hills, 49 km away | 24/7 | Emergencies |
| 7 | Four Seasons Kanga Roof | 49 | 5.0★ (10) | Clinton Township, 47 km away | 24/7 | — |
| 8 | Solar Solutions of America Inc | 48 | 4.4★ (13) | Troy, 63 km away | — | — |
| 9 | Solar Source | 45 | 4.8★ (12) | Saint Clair Shores, 60 km away | — | — |
| 10 | Green Apple Electrical Solutions Ltd. | 43 | 4.3★ (16) | Chatham, 54 km away | — | — |
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 review volume: 4.8★ from 953 Google reviews, the most in Corunna.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clinton Township, 54 km away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 136 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clinton Township, 52 km away
Ranked #3 because of its Google rating and trade focus: 4.2★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Auburn Hills, 54 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rochester, 61 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn Hills, 49 km away
Ranked #6 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clinton Township, 47 km away
Ranked #7 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Troy, 63 km away
Ranked #8 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Clair Shores, 60 km away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Skylight contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chatham, 54 km away
Ranked #10 because of its Google rating and trade focus: 4.3★ from 16 Google reviews, listed on Google as “Electrician”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clinton Township, 47 km away
Ranked #11 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Electrician”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sterling Heights, 61 km away
Ranked #12 because of its Google rating and trade focus: 2.5★ from 26 Google reviews, listed on Google as “Electric utility company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
11 more solar installers within 64 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Dynamic installers | 47 km | |
| Eco-Green-Energy LLC | 59 km | |
| Electroide | 5.0★ (1) | 59 km |
| Esei Solar | 9 km | |
| Freakin A Wind & Solar Power | 1.0★ (1) | 10 km |
| Michigan Power Solutions LLC | 5.0★ (1) | 55 km |
| Michigan Solar Energy llc | 57 km | |
| Nature's Power | 55 km | |
| Schoenherr Solar | 5.0★ (2) | 48 km |
| SnX Solar Panels | 64 km | |
| Solar Kit Direct | 4.0★ (1) | 8 km |
US national ranges converted to CAD, not adjusted for Corunna. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | CA$38,690 | CA$43,760 | CA$47,600 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 12 Corunna 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 Corunna 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 |