56 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in St. Catharines: NOCO Residential: HVAC, Fuels, and Energy, CR Score 63/100; 4.8★ from 440 Google reviews; open 24/7.
Best for emergencies (open 24/7): Toronto Wiring, posts 24/7 hours; ranked #18 of 56.
Most-reviewed: Solar X Inc., 650 Google reviews at 4.5★, the most of 56 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
56 St. Catharines solar installers are ranked here by CR Score, from ten published factors. 3 are open 24/7, 19 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 4.8★ across 56 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NOCO Residential: HVAC, Fuels, and Energy | 63 | 4.8★ (440) | Tonawanda, 39 km away | 24/7 | Overall |
| 2 | Blue sky solar inc | 56 | 5.0★ (112) | Mississauga, 57 km away | Sat | — |
| 3 | Solar X Inc. | 55 | 4.5★ (650) | Toronto, 56 km away | Evenings | Most reviews |
| 4 | DT Cleaning Window & Eaves | Gutter Cleaning | 55 | 5.0★ (443) | Etobicoke, 55 km away | Sat · Sun | — |
| 5 | Solar Liberty | 55 | 4.9★ (118) | Buffalo, 49 km away | — | — |
| 6 | Buffalo Solar | 54 | 4.9★ (127) | Depew, 53 km away | — | — |
| 7 | Go Solar WNY | 54 | 4.9★ (41) | Lockport, 45 km away | Sat | — |
| 8 | Upgradium | 53 | 5.0★ (36) | Etobicoke, 58 km away | Sat · Evenings | — |
| 9 | Goldwater Solar Services Ltd | 53 | 5.0★ (52) | Toronto, 53 km away | Evenings | — |
| 10 | mySolar | 53 | 4.6★ (129) | Mississauga, 53 km away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in St. Catharines
Based in Tonawanda, 39 km away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 440 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 57 km away
Ranked #2 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 Toronto, 56 km away
Ranked #3 because of its Google rating and review volume: 4.5★ from 650 Google reviews, the most in St. Catharines.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 55 km away
Ranked #4 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 Buffalo, 49 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 118 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Depew, 53 km away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 127 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lockport, 45 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 58 km away
Ranked #8 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 Toronto, 53 km away
Ranked #9 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, 53 km away
Ranked #10 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 Grand Island, 25 km away
Ranked #11 because of its Google rating and review volume: 4.8★ from 117 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 54 km away
Ranked #12 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 Toronto, 53 km away
Ranked #13 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 Toronto, 57 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 Mississauga, 60 km away
Ranked #15 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 Grand Island, 25 km away
Ranked #16 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 Norfolk County, 43 km away
Ranked #17 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 Etobicoke, 61 km away
Ranked #18 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 Toronto, 56 km away
Ranked #19 because of its Google rating and trade focus: 3.0★ 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 Tonawanda, 39 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ 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 Buffalo, 47 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ 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 Etobicoke, 60 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 55 km away
Ranked #23 because of its Google rating and availability: 5.0★ from 23 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 54 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 52 km away
Ranked #25 because of its Google rating and trade focus: 4.4★ from 14 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 56 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Centre Star Solar | 49 | 4.0★ (16) | 52 km |
| 27 | Rechargeables Inc. | 48 | 5.0★ (7) | 49 km |
| 28 | Solar Provider Group Inc. | 48 | 4.6★ (8) | 54 km |
| 29 | Ecohive | 48 | 5.0★ (9) | 59 km |
| 30 | Sunly Energy | 48 | 5.0★ (6) | 52 km |
| 31 | TD Solar Shop | 48 | 4.8★ (17) | 52 km |
| 32 | Squeegee Bears | 48 | 4.8★ (16) | 44 km |
| 33 | TRU Off Grid - Solar & Energy Storage | 48 | 4.8★ (66) | 63 km |
| 34 | Golden Horseshoe Roofing | 48 | 4.9★ (100) | 53 km |
| 35 | Toronto Roofer | 47 | 4.8★ (28) | 61 km |
| 36 | Solar Erectors Ltd | 47 | 5.0★ (5) | 37 km |
| 37 | SkyPower | 47 | 4.8★ (4) | 54 km |
| 38 | Solar Buffalo | 47 | 5.0★ (4) | 53 km |
| 39 | Reboot Solar | 47 | 4.8★ (16) | 62 km |
| 40 | CMI Group Inc | 47 | 3.5★ (13) | 60 km |
| 41 | New Wave Energy | 47 | 4.0★ (448) | 44 km |
| 42 | iSOLAR SOLUTIONS | 47 | 4.8★ (27) | 29 km |
| 43 | ArtIn Energy - Toronto | 47 | 5.0★ (3) | 53 km |
| 44 | Solaris Power | 46 | 5.0★ (5) | 62 km |
| 45 | Net0Homes | 46 | 5.0★ (3) | 54 km |
| 46 | Samsung Renewable Energy Inc | 46 | 2.3★ (3) | 64 km |
| 47 | Silfab Solar Inc. | 46 | 3.1★ (41) | 57 km |
| 48 | UGE CANADA RE | 46 | 4.0★ (3) | 56 km |
| 49 | EcoGrid Energy Inc. | 46 | 4.5★ (4) | 63 km |
| 50 | OYA Renewables | 46 | 2.3★ (6) | 54 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 |
|---|---|---|
| AJT Roofing and Contracting | 4.9★ (190) | In St. Catharines |
| DynoRaxx | 5.0★ (1) | 49 km |
| Garden City Roofing | 4.6★ (24) | In St. Catharines |
| Green Energy Co-operative of Ontario | 5.0★ (1) | 49 km |
| Green Target Solar | 5.0★ (2) | 60 km |
| JD Roofing Inc. | 4.8★ (86) | In St. Catharines |
| Keener Electric Inc. | 4.8★ (23) | In St. Catharines |
| Montante Group | 5.0★ (1) | 34 km |
| Phoventus Inc. | 5.0★ (2) | 52 km |
| Sneravetro Solar Energy | 5.0★ (1) | 51 km |
| Solar Dynamics Corporation | In St. Catharines | |
| Solar Power Depot | 3.0★ (2) | 63 km |
| Solar Trader Inc. | 5.0★ (1) | 36 km |
| Solar X | 5.0★ (2) | 48 km |
| Southend Electrical Ltd | 5.0★ (40) | In St. Catharines |
| Sunny Solar Company | 5.0★ (1) | 37 km |
| Technic Electrical Corp | 5.0★ (3) | In St. Catharines |
| Toronto Solar Electric | 5.0★ (2) | 60 km |
| Total Eco Energy | 5.0★ (2) | 60 km |
| YSG Solar Farms | 5.0★ (1) | 42 km |
US national ranges converted to CAD, not adjusted for St. Catharines. 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 56 St. Catharines 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 St. Catharines 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 |