19 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ottawa: True Beacon Solar, CR Score 65/100; 5.0★ from 157 Google reviews; open Saturdays until 1 PM.
Best for emergencies (open 24/7): Future Solar and Electric, posts 24/7 hours; ranked #11 of 19.
Most-reviewed: Denoco Energy Systems Ltd, 102 Google reviews at 4.6★, the most of 19 ranked after True Beacon Solar; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Ottawa solar installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 9 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 5.0★ across 19 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | True Beacon Solar | 65 | 5.0★ (157) | Ottawa | Sat · Evenings | Overall |
| 2 | Quadra Solar | 62 | 5.0★ (43) | Ottawa | Sat · Evenings | — |
| 3 | Canadian Green Tech Inc. | 62 | 5.0★ (23) | Ottawa | Sat · Sun | — |
| 4 | FIG Solar | 61 | 5.0★ (59) | Ottawa | — | — |
| 5 | Énergie solaire Outaouais | 59 | 4.7★ (26) | Ottawa | Sat | — |
| 6 | Kajk Constructors Inc I Solar Energy & Green Retrofits Contractor | 59 | 5.0★ (38) | Ottawa | — | — |
| 7 | Ottawa Solar Power Inc - Solar Energy Solutions | 58 | 4.4★ (39) | Ottawa | Evenings | — |
| 8 | iSolara Solar Power | 58 | 5.0★ (31) | Nepean, 10 km away | — | — |
| 9 | Deltacron Renewables. | 58 | 4.3★ (17) | Ottawa | Sat | — |
| 10 | SunShine Solar Power Inc. | 57 | 4.9★ (24) | Nepean, 27 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 review volume: 5.0★ from 157 Google reviews, the most in Ottawa.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #2 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #3 because of its Google rating and trade focus: 5.0★ 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 Ottawa
Ranked #4 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #5 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #6 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #7 because of its Google rating and trade focus: 4.4★ from 39 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 10 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa
Ranked #9 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 27 km away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 24 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Carleton Place, 46 km away
Ranked #11 because of its Google rating and trade focus: 4.9★ 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 Ottawa
Ranked #12 because of its Google rating and review volume: 4.9★ from 66 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 12 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland, 15 km away
Ranked #14 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 Nepean, 32 km away
Ranked #15 because of its Google rating and trade focus: 4.7★ 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 Ottawa
Ranked #16 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.
Based in Kanata, 20 km away
Ranked #17 because of its Google rating and review volume: 4.8★ from 20 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Smiths Falls, 62 km away
Ranked #18 because of its Google rating and review volume: 4.6★ from 102 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kanata, 20 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Electrician”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
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 |
|---|---|---|
| Alignsun Energy Solutions | 5.0★ (1) | In Ottawa |
| Blueprint Energy Inc. | In Ottawa | |
| Canada Solar Group | Ottawa Solar Power Company | In Ottawa | |
| Capital City Solar | In Ottawa | |
| Capital Solar | 5.0★ (1) | In Ottawa |
| CorePack Renewable Energy Inc. | 5.0★ (2) | In Ottawa |
| Ecosol Solar Technologies Inc | In Ottawa | |
| FullView Renovations Inc. | 5.0★ (3) | In Ottawa |
| London Eco Metal - Ottawa Metal Roofing Division | 4.5★ (83) | In Ottawa |
| Marchand Electric | 3.7★ (30) | In Ottawa |
| Marchand Electric | 3.7★ (21) | In Ottawa |
| MAXUN Solar Inc | In Ottawa | |
| OakWood Designers & Builders | 4.5★ (31) | In Ottawa |
| Ottawa Skylights Inc. | 4.2★ (15) | In Ottawa |
| Prism Window Cleaning | 4.5★ (17) | In Ottawa |
| Seguin Morris | 2.1★ (11) | In Ottawa |
| SolarACM | In Ottawa | |
| SolarSecure | In Ottawa | |
| WindowGuru Window Cleaning | 5.0★ (329) | In Ottawa |
| Zenith Eco Energy | 4.9★ (123) | In Ottawa |
US national ranges converted to CAD, not adjusted for Ottawa. 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 19 Ottawa 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 Ottawa 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 |