112 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oakville: Sunrun Solar, CR Score 87/100; 4.9★ from 287 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Sun Path Energy, posts 24/7 hours; ranked #2 of 112.
Most-reviewed: Trinity Solar, 1,007 Google reviews at 4.5★, the most of 112 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
112 Oakville solar installers are ranked here by CR Score, from 8 published factors. 11 are open 24/7, 62 open Saturdays and 35 open Sundays, based on posted hours. The median Google rating is 5.0★ across 112 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sunrun Solar | 87 | 4.9★ (287) | Cromwell, 22 mi away | Sat · Sun | Overall |
| 2 | Sun Path Energy | 86 | 5.0★ (27) | Cheshire, 11 mi away | 24/7 | Emergencies |
| 3 | Solarship Corp | 86 | 5.0★ (190) | Bristol, 24 mi away | Sat · Sun · Evenings | — |
| 4 | Home Solar CT | 86 | 5.0★ (10) | Oakville | 24/7 | — |
| 5 | Sunpol Solar | 86 | 4.9★ (39) | Newington, 19 mi away | 24/7 | — |
| 6 | Shoreline Solar | 85 | 5.0★ (67) | Hamden, 14 mi away | Sat · Sun · Evenings | — |
| 7 | Trinity Solar | 85 | 4.5★ (1,007) | Cheshire, 9 mi away | Sat · Evenings | Most reviews |
| 8 | Premier Improvements Solar | 84 | 4.9★ (81) | West Hartford, 21 mi away | Sat · Sun · Evenings | — |
| 9 | ISP Solar Energy Company | 83 | 5.0★ (30) | Darien, 31 mi away | 24/7 | — |
| 10 | iSP (Ion Solar Pros) | 83 | 4.9★ (332) | Middlebury, 4 mi away | Evenings | — |
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 trade focus: 4.9★ from 287 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 11 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bristol, 24 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 190 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oakville
Ranked #4 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Newington, 19 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 39 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hamden, 14 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 9 mi away
Ranked #7 because of its Google rating and review volume: 4.5★ from 1,007 Google reviews, the most Google reviews on this list (1,007).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Hartford, 21 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Darien, 31 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 30 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Middlebury, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 332 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wallingford Center, 21 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 166 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in New Britain, 17 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Darien, 3 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manchester, 33 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 242 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in New Britain, 16 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Solar energy company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Bristol, 18 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Bristol, 10 mi away
Ranked #17 because of its Google rating and availability: 4.9★ from 14 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Hartford, 21 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire Village, 18 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethel, 16 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Haven, 18 mi away
Ranked #21 because of its Google rating and trade focus: 4.1★ from 183 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 19 mi away
Ranked #22 because of its Google rating and trade focus: 3.9★ from 553 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in City of Milford (balance), 18 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Branford, 26 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 18 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for Connecticut with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $28,990 | $32,790 | $35,670 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.05 New England factor (2025 Cost vs. Value Report) | October 2026 |
We scored 112 Oakville 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 Oakville 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 |