6 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Chatham: Four Seasons Kanga Roof, CR Score 82/100; 4.8★ from 953 Google reviews; open 24/7.
Best for emergencies (open 24/7): Southwest Energy Refrigeration & Mechanical Inc, posts 24/7 hours; ranked #3 of 6.
Most-reviewed: Green Apple Electrical Solutions Ltd., 16 Google reviews at 4.3★, the most of 6 ranked after Four Seasons Kanga Roof; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
6 Chatham solar installers are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 2 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.5★ across 6 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Four Seasons Kanga Roof | 82 | 4.8★ (953) | Roseville, 64 km away | 24/7 | Overall |
| 2 | Solar ReAction LLC | 74 | 4.2★ (15) | Clinton Township, 60 km away | — | — |
| 3 | Southwest Energy Refrigeration & Mechanical Inc | 70 | 5.0★ (3) | Essex, 64 km away | 24/7 | Emergencies |
| 4 | Green Apple Electrical Solutions Ltd. | 69 | 4.3★ (16) | Chatham | — | Most reviews |
| 5 | Solar Source | 64 | 4.8★ (12) | Saint Clair Shores, 60 km away | — | — |
| 6 | Electrex Industrial Solutions - Commercial Electricians, Industrial Electrical Contractors | 61 | 3.5★ (8) | Clinton Township, 59 km away | — | — |
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 953 Google reviews, the most Google reviews on this list (953).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clinton Township, 60 km away
Ranked #2 because of its Google rating and trade focus: 4.2★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Essex, 64 km away
Ranked #3 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chatham
Ranked #4 because of its Google rating and trade focus: 4.3★ from 16 Google reviews, listed on Google as “Electrician”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Saint Clair Shores, 60 km away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Skylight contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clinton Township, 59 km away
Ranked #6 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Electrician”.
Based on 6 of 8 factors; credentials and recency not yet collected.
US national ranges converted to CAD, not adjusted for Chatham. 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 6 Chatham 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 Chatham 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 |