96 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oakville: Blue sky solar inc, CR Score 58/100; 5.0★ from 112 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Go Lime, posts 24/7 hours; ranked #2 of 96.
Most-reviewed: Go Lime, 6,512 Google reviews at 4.8★, the most of 96 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
96 Oakville solar installers are ranked here by CR Score, from ten published factors. 6 are open 24/7, 33 open Saturdays and 20 open Sundays, based on posted hours. The median Google rating is 4.8★ across 96 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Blue sky solar inc | 58 | 5.0★ (112) | Mississauga, 15 km away | Sat | Overall |
| 2 | Go Lime | 57 | 4.8★ (6,512) | North York, 46 km away | 24/7 | Emergencies, Most reviews |
| 3 | GriffEnergy | 55 | 4.7★ (13) | Toronto, 36 km away | 24/7 | — |
| 4 | Upgradium | 55 | 5.0★ (36) | Etobicoke, 25 km away | Sat · Evenings | — |
| 5 | mySolar | 55 | 4.6★ (129) | Mississauga, 8 km away | — | — |
| 6 | DT Cleaning Window & Eaves | Gutter Cleaning | 55 | 5.0★ (443) | Etobicoke, 25 km away | Sat · Sun | — |
| 7 | Voltly Energy | 55 | 5.0★ (22) | Scarborough, 54 km away | 24/7 | — |
| 8 | Solar X Inc. | 54 | 4.5★ (650) | Toronto, 34 km away | Evenings | — |
| 9 | Radiant Solar Energy Group | 54 | 5.0★ (25) | Vaughan, 42 km away | Sat · Sun | — |
| 10 | Canadian Solar Outfitters | 54 | 4.7★ (12) | Norfolk County, 7 km away | Sat | — |
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 trade focus: 5.0★ from 112 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North York, 46 km away
Ranked #2 because of its Google rating and review volume: 4.8★ from 6,512 Google reviews, the most in Oakville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 36 km away
Ranked #3 because of its Google rating and trade focus: 4.7★ 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 Etobicoke, 25 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 8 km away
Ranked #5 because of its Google rating and trade focus: 4.6★ from 129 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 25 km away
Ranked #6 because of its Google rating and review volume: 5.0★ from 443 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 54 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 34 km away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 650 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vaughan, 42 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 7 km away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 30 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 22 km away
Ranked #12 because of its Google rating and trade focus: 4.1★ from 72 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Richmond Hill, 49 km away
Ranked #13 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 33 km away
Ranked #14 because of its Google rating and trade focus: 4.5★ from 10 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 48 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 187 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 32 km away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 21 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 21 km away
Ranked #17 because of its Google rating and review volume: 4.9★ from 156 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 48 km away
Ranked #18 because of its Google rating and trade focus: 4.9★ 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 North York, 37 km away
Ranked #19 because of its Google rating and review volume: 5.0★ from 228 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 8 km away
Ranked #20 because of its Google rating and trade focus: 4.0★ from 16 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 49 km away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 434 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 38 km away
Ranked #22 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kitchener, 61 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 30 km away
Ranked #24 because of its Google rating and review volume: 4.7★ from 84 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakville
Ranked #25 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
US national ranges converted to CAD, not adjusted for Oakville. 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 96 Oakville 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 Oakville 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 |