103 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Windsor: Sunrun Solar, CR Score 62/100; 4.9★ from 287 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Sunpol Solar, posts 24/7 hours; ranked #6 of 103.
Most-reviewed: Trinity Solar, 1,007 Google reviews at 4.5★, the most of 103 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
103 Windsor solar installers are ranked here by CR Score, from ten published factors. 10 are open 24/7, 56 open Saturdays and 30 open Sundays, based on posted hours. The median Google rating is 5.0★ across 103 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sunrun Solar | 62 | 4.9★ (287) | Cromwell, 15 mi away | Sat · Sun | Overall |
| 2 | Solarship Corp | 62 | 5.0★ (190) | Bristol, 13 mi away | Sat · Sun · Evenings | — |
| 3 | Everlast Energy & Roofing | 61 | 5.0★ (242) | Manchester, 8 mi away | Sat | — |
| 4 | Premier Improvements Solar | 60 | 4.9★ (81) | West Hartford, 8 mi away | Sat · Sun · Evenings | — |
| 5 | All Energy Solar | 60 | 4.9★ (294) | Westfield, 18 mi away | Sat | — |
| 6 | Sunpol Solar | 59 | 4.9★ (39) | Newington, 14 mi away | 24/7 | Emergencies |
| 7 | Trinity Solar | 59 | 4.5★ (1,007) | Cheshire, 25 mi away | Sat · Evenings | Most reviews |
| 8 | Freedom Forever | 58 | 4.6★ (187) | Ellington, 5 mi away | — | — |
| 9 | ISP Solar Energy Company | 57 | 5.0★ (11) | Bristol, 9 mi away | 24/7 | — |
| 10 | Momentum Solar Connecticut | 57 | 3.9★ (553) | Farmington, 16 mi away | Sat · Sun · 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 287 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bristol, 13 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 190 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester, 8 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 242 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Hartford, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westfield, 18 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 294 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newington, 14 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ 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 Cheshire, 25 mi away
Ranked #7 because of its Google rating and review volume: 4.5★ from 1,007 Google reviews, the most in Windsor.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ellington, 5 mi away
Ranked #8 because of its Google rating and trade focus: 4.6★ 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 Bristol, 9 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmington, 16 mi away
Ranked #10 because of its Google rating and trade focus: 3.9★ from 553 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Hartford, 9 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Britain, 13 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 8 of 10 factors; credentials and recency not yet collected.
Based in Wallingford Center, 27 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 166 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Enfield, 10 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cheshire Village, 17 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Britain, 14 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Cheshire, 28 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamden, 32 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holyoke, 25 mi away
Ranked #19 because of its Google rating and trade focus: 4.4★ from 339 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middlebury, 32 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 332 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ashland, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cromwell, 14 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ 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 Easthampton, 29 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 201 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Beverly, 14 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakville, 25 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 10 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 103 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | PosiGen Home Solar | 55 | 4.5★ (96) | 24 mi |
| 27 | East HartFord Solar | 54 | 4.8★ (4) | 6 mi |
| 28 | SunVivo | 54 | 5.0★ (4) | 7 mi |
| 29 | CellSun Solar | 54 | 5.0★ (11) | 9 mi |
| 30 | Mystic Solar, Inc. | 54 | 5.0★ (36) | 25 mi |
| 31 | WethersField Solar | 54 | 4.5★ (4) | 10 mi |
| 32 | Sunrun Solar | 54 | 4.1★ (183) | 35 mi |
| 33 | Earthlight Technologies | 54 | 4.9★ (439) | 9 mi |
| 34 | Sol Choice, LLC | 54 | 5.0★ (23) | 25 mi |
| 35 | Norwich Solar | 54 | 4.7★ (3) | 8 mi |
| 36 | Go Solar with Sayles | 53 | 5.0★ (5) | 25 mi |
| 37 | Infinity Energy | 53 | 5.0★ (15) | 17 mi |
| 38 | Northeast Solar | 53 | 5.0★ (94) | 35 mi |
| 39 | GM Industries, Inc | 53 | 3.5★ (15) | 18 mi |
| 40 | Sunrun Solar | 53 | 3.6★ (130) | 23 mi |
| 41 | New England Solar Direct | 53 | 5.0★ (8) | 26 mi |
| 42 | LUX Pwr | 53 | 5.0★ (7) | 25 mi |
| 43 | ISP Solar Provider | 52 | 4.9★ (14) | 19 mi |
| 44 | Bluebird Sky Solar | 52 | 5.0★ (7) | 16 mi |
| 45 | Insight Energy Systems - Insight Solar | 52 | 4.8★ (115) | 37 mi |
| 46 | Omega Energy LLC | 52 | 5.0★ (35) | 25 mi |
| 47 | Unity Energy | 52 | 5.0★ (13) | 25 mi |
| 48 | Ion Solar - Connecticut | 52 | 4.2★ (33) | 25 mi |
| 49 | SAVKAT | 52 | 4.8★ (191) | 19 mi |
| 50 | Better Home Solutions LLC | 52 | 5.0★ (7) | 39 mi |
20 more solar installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Ascend Solar | 5.0★ (2) | 14 mi |
| Bright Solution | In Windsor | |
| Connecticut Sun Nerds Solar Brokers | 1.0★ (1) | 14 mi |
| Dcs Energy | 5.0★ (2) | 8 mi |
| Dyna, Inc. | 3.0★ (2) | 7 mi |
| EcoGen America | 5.0★ (2) | 6 mi |
| Energy Resources USA dba JK Energy Solutions | 5.0★ (2) | 26 mi |
| Green Power On | 5.0★ (1) | 9 mi |
| J&S Industry llc | 5.0★ (1) | 12 mi |
| Last Stop Solar | 5.0★ (2) | 8 mi |
| LMT Custom Homes LLC | 5.0★ (1) | 11 mi |
| Luminous Energy | 5.0★ (2) | 22 mi |
| Metro Sun Solar | 5.0★ (2) | 38 mi |
| MYSUNWORK LLC | 5.0★ (2) | 25 mi |
| New Britain Solar | 4.5★ (2) | 15 mi |
| Northeast Smart Energy LLC | 1.0★ (1) | 8 mi |
| Renewable Energy CT | 5.0★ (2) | 39 mi |
| Solar Pros LLC | 3.0★ (2) | 25 mi |
| Source Lumen | 5.0★ (2) | 25 mi |
| Sunpower Solar Design Center | 1.0★ (1) | 9 mi |
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 103 Windsor 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 Windsor 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 |