59 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Alliston: Sharpline Home Comfort, CR Score 59/100; 4.9★ from 215 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Go Lime, posts 24/7 hours; ranked #2 of 59.
Most-reviewed: Go Lime, 6,512 Google reviews at 4.8★, the most of 59 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
59 Alliston solar installers are ranked here by CR Score, from ten published factors. 5 are open 24/7, 21 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.8★ across 59 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sharpline Home Comfort | 59 | 4.9★ (215) | Richmond Hill, 23 km away | Sat · Sun | Overall |
| 2 | Go Lime | 55 | 4.8★ (6,512) | North York, 60 km away | 24/7 | Emergencies, Most reviews |
| 3 | The Next Level Consulting | Energy Assessments For Residential and Business | 54 | 4.9★ (184) | Aurora, 35 km away | — | — |
| 4 | Radiant Solar Energy Group | 54 | 5.0★ (25) | Vaughan, 46 km away | Sat · Sun | — |
| 5 | TerraGen Solar | 54 | 5.0★ (15) | Alliston | — | — |
| 6 | Voltly Energy | 54 | 5.0★ (22) | Scarborough, 61 km away | 24/7 | — |
| 7 | GriffEnergy | 53 | 4.7★ (13) | Toronto, 52 km away | 24/7 | — |
| 8 | Sooren Inc. | 53 | 4.3★ (12) | Richmond Hill, 48 km away | 24/7 | — |
| 9 | Herc Du Soleil | 52 | 4.9★ (32) | Newmarket, 33 km away | — | — |
| 10 | Upgradium | 51 | 5.0★ (36) | Etobicoke, 62 km away | Sat · Evenings | — |
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: 4.9★ from 215 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, 60 km away
Ranked #2 because of its Google rating and review volume: 4.8★ from 6,512 Google reviews, the most in Alliston.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 35 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 184 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vaughan, 46 km away
Ranked #4 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 Alliston
Ranked #5 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 61 km away
Ranked #6 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, 52 km away
Ranked #7 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 Richmond Hill, 48 km away
Ranked #8 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 Newmarket, 33 km away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 62 km away
Ranked #10 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 Scarborough, 57 km away
Ranked #11 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 Vaughan, 47 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 14 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, 57 km away
Ranked #13 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 Toronto, 64 km away
Ranked #14 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 Norfolk County, 60 km away
Ranked #15 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 North York, 57 km away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 57 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 24 km away
Ranked #17 because of its Google rating and trade focus: 4.5★ from 237 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 60 km away
Ranked #18 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 Brampton, 36 km away
Ranked #19 because of its Google rating and trade focus: 4.1★ 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 North York, 55 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 22 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Property maintenance”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Markham, 56 km away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 40 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 59 km away
Ranked #23 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 North York, 52 km away
Ranked #24 because of its Google rating and trade focus: 4.5★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Richmond Hill, 50 km away
Ranked #25 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.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 59 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Hammond Renewable Energy Inc. | 49 | 5.0★ (5) | 39 km |
| 27 | RESCo Energy Inc. | 48 | 3.7★ (6) | 53 km |
| 28 | Green Integrations Inc. | 48 | 4.5★ (15) | 51 km |
| 29 | Toronto Solar Solutions Inc. | 48 | 5.0★ (20) | 64 km |
| 30 | Solar X | 48 | 5.0★ (5) | 43 km |
| 31 | Microgreen Solar Corporation | 48 | 4.2★ (19) | 51 km |
| 32 | Zeno Renewables - Mississauga | 48 | 4.8★ (14) | 57 km |
| 33 | Sunrise NRG | 48 | 5.0★ (7) | 51 km |
| 34 | DNM Solar Solutions Inc. | 47 | 5.0★ (3) | 43 km |
| 35 | Ecohive | 47 | 5.0★ (9) | 61 km |
| 36 | Forever Free Solar | 47 | 5.0★ (4) | 48 km |
| 37 | Solar Fox | 47 | 5.0★ (13) | 48 km |
| 38 | Maxdura Battery | 47 | 4.7★ (12) | 64 km |
| 39 | Mitrex - Building-Integrated Solar Technology | 47 | 3.6★ (28) | 53 km |
| 40 | Samsung Renewable Energy Inc | 47 | 2.3★ (3) | 61 km |
| 41 | Canadian Comforts Home Services | 47 | 5.0★ (192) | 56 km |
| 42 | Solify | 46 | 4.4★ (93) | 58 km |
| 43 | Diamond Renewable Energy | 46 | 5.0★ (5) | 62 km |
| 44 | Toronto Roofer | 46 | 4.8★ (28) | 59 km |
| 45 | Solaris Power | 46 | 5.0★ (5) | 62 km |
| 46 | CMI Group Inc | 46 | 3.5★ (13) | 60 km |
| 47 | Reboot Solar | 46 | 4.8★ (16) | 63 km |
| 48 | LH Solar Inc | 46 | 2.5★ (6) | 54 km |
| 49 | ONE PIECE Electric | 45 | 5.0★ (10) | 37 km |
| 50 | SunFlow Solar and Roofing | 45 | 3.8★ (32) | 34 km |
20 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 |
|---|---|---|
| 2 Solar | 1.0★ (1) | 55 km |
| Free Ontario Solar Inc | 5.0★ (2) | 54 km |
| Impact Solar Solutions | 5.0★ (1) | 54 km |
| KALAMENN TRADING INCORPORATED | 5.0★ (1) | 53 km |
| Lumin Solar Inc | 4.0★ (1) | 52 km |
| Mitra Innovations | 5.0★ (1) | 48 km |
| MULTEPS SOLAR INC. | 5.0★ (1) | 37 km |
| Northern Solar Works Inc. | 5.0★ (2) | 24 km |
| Only Sun Energy Inc. | 5.0★ (1) | 52 km |
| Ontario Solar Installers | 5.0★ (2) | 44 km |
| Osborne Solar Solutions | 5.0★ (2) | 36 km |
| Oya Solar Inc | 3.0★ (2) | 55 km |
| Power of the Sun2 Solar | 4.0★ (1) | 48 km |
| Solar Power Depot | 3.0★ (2) | 57 km |
| SolarBank Corporation | 3.0★ (2) | 60 km |
| SolarDirectCanada | 5.0★ (2) | 59 km |
| Solarpedia | 5.0★ (2) | 57 km |
| Stardust Solar Installation Barrie | 5.0★ (2) | 29 km |
| Swantech Energy Solutions | 5.0★ (2) | 56 km |
| Toronto Solar Electric | 5.0★ (2) | 60 km |
US national ranges converted to CAD, not adjusted for Alliston. 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 59 Alliston 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 Alliston 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 |