127 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Guilford: Freedom Power Solutions, CR Score 61/100; 5.0★ from 189 Google reviews; open 24/7.
Best for emergencies (open 24/7): Sun Path Energy, posts 24/7 hours; ranked #7 of 127.
Most-reviewed: Trinity Solar, 1,007 Google reviews at 4.5★, the most of 127 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
127 Guilford solar installers are ranked here by CR Score, from ten published factors. 13 are open 24/7, 75 open Saturdays and 44 open Sundays, based on posted hours. The median Google rating is 5.0★ across 127 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Freedom Power Solutions | 61 | 5.0★ (189) | West Hills, 26 mi away | 24/7 | Overall |
| 2 | Sunrun Solar | 60 | 4.9★ (287) | Cromwell, 24 mi away | Sat · Sun | — |
| 3 | Solarship Corp | 60 | 5.0★ (190) | Bristol, 27 mi away | Sat · Sun · Evenings | — |
| 4 | Trinity Solar | 59 | 4.5★ (1,007) | Cheshire, 22 mi away | Sat · Evenings | Most reviews |
| 5 | Shoreline Solar | 59 | 5.0★ (67) | Hamden, 16 mi away | Sat · Sun · Evenings | — |
| 6 | Green Power Energy | 59 | 4.8★ (166) | Wallingford Center, 13 mi away | Sat · Evenings | — |
| 7 | Sun Path Energy | 58 | 5.0★ (27) | Cheshire, 19 mi away | 24/7 | Emergencies |
| 8 | Sunpol Solar | 58 | 4.9★ (39) | Newington, 26 mi away | 24/7 | — |
| 9 | Better Home Solutions LLC | 58 | 5.0★ (7) | Branford, 5 mi away | 24/7 | — |
| 10 | Sunrun Solar | 57 | 4.1★ (183) | North Haven, 12 mi away | Sat · Sun | — |
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: 5.0★ from 189 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cromwell, 24 mi away
Ranked #2 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, 27 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 8 of 10 factors; credentials and recency not yet collected.
Based in Cheshire, 22 mi away
Ranked #4 because of its Google rating and review volume: 4.5★ from 1,007 Google reviews, the most in Guilford.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamden, 16 mi away
Ranked #5 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 Wallingford Center, 13 mi away
Ranked #6 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 Cheshire, 19 mi away
Ranked #7 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 Newington, 26 mi away
Ranked #8 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 Branford, 5 mi away
Ranked #9 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 North Haven, 12 mi away
Ranked #10 because of its Google rating and trade focus: 4.1★ from 183 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Centereach, 34 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 95 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middlebury, 27 mi away
Ranked #12 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 Manchester, 36 mi away
Ranked #13 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 Oakville, 15 mi away
Ranked #14 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.
Based in West Hartford, 33 mi away
Ranked #15 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 Darien, 32 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Calverton, 28 mi away
Ranked #17 because of its Google rating and review volume: 5.0★ from 270 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Calverton, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 98 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmington, 23 mi away
Ranked #19 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 Cheshire Village, 23 mi away
Ranked #20 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 West Haven, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 84 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Groton, 15 mi away
Ranked #22 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 Bristol, 15 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in City of Milford (balance), 15 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coram, 31 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 75 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 127 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Liberty Energy Solar Solutions | 55 | 5.0★ (42) | 35 mi |
| 27 | SUNZER0 LLC | 55 | 5.0★ (23) | 28 mi |
| 28 | L & R Solar Panel Cleaning LLC | 55 | 5.0★ (37) | 27 mi |
| 29 | Harbor Energy Solutions | 55 | 5.0★ (24) | 30 mi |
| 30 | LUX Pwr | 54 | 5.0★ (7) | 15 mi |
| 31 | Solara Solar | 54 | 4.9★ (58) | 33 mi |
| 32 | SunQuest Solar | 54 | 4.9★ (80) | 37 mi |
| 33 | Unity Energy | 54 | 5.0★ (13) | 15 mi |
| 34 | West Hartford Solar | 54 | 5.0★ (19) | 31 mi |
| 35 | Earth Smart Solar CT | 54 | 5.0★ (26) | 25 mi |
| 36 | Empower Solar & Roofing | 54 | 5.0★ (11) | 15 mi |
| 37 | Alpha Solar | 54 | 5.0★ (10) | 15 mi |
| 38 | Ion Solar - Connecticut | 54 | 4.2★ (33) | 17 mi |
| 39 | Apex Energy - Hamptons Solar | 53 | 5.0★ (6) | 29 mi |
| 40 | Kohler Roofing Solar & Construction | 53 | 5.0★ (12) | 15 mi |
| 41 | JD Solar Solutions | 53 | 4.9★ (33) | 18 mi |
| 42 | ECOVOLT: Solar Energy | 53 | 5.0★ (6) | 33 mi |
| 43 | LLK Solar | 53 | 5.0★ (4) | 20 mi |
| 44 | US Solar Enterprise | 53 | 4.4★ (34) | 38 mi |
| 45 | Longevity Solar Solutions | 52 | 4.6★ (7) | 26 mi |
| 46 | New England Solar Direct | 52 | 5.0★ (8) | 30 mi |
| 47 | SunNectar | 51 | 5.0★ (8) | 35 mi |
| 48 | B & A Tree Service, Masonry, Fence & more | 51 | 5.0★ (72) | 26 mi |
| 49 | ISP Solar Provider | 51 | 4.9★ (14) | 30 mi |
| 50 | AB Electric & Security LLC | 50 | 5.0★ (9) | 15 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 |
|---|---|---|
| Alternative Energy Solutions, LLC | 5.0★ (184) | In Guilford |
| Ascend Solar | 5.0★ (2) | 25 mi |
| Boundless, Inc. | In Guilford | |
| Dcs Energy | 5.0★ (2) | 34 mi |
| Dyna, Inc. | 3.0★ (2) | 36 mi |
| EcoGen America | 5.0★ (2) | 33 mi |
| Energy Resources USA dba JK Energy Solutions | 5.0★ (2) | 33 mi |
| Forever Roofing LLC | 4.0★ (2) | 39 mi |
| Gen X Solar | In Guilford | |
| Independence Solar | In Guilford | |
| Last Stop Solar | 5.0★ (2) | 33 mi |
| Medford Solar Power | 5.0★ (2) | 36 mi |
| Metro Sun Solar | 5.0★ (2) | 2 mi |
| MYSUNWORK LLC | 5.0★ (2) | 15 mi |
| National Roofing and Solar Corporation | 5.0★ (1) | In Guilford |
| New Britain Solar | 4.5★ (2) | 27 mi |
| Renewable Energy CT | 5.0★ (2) | In Guilford |
| Solar Pros LLC | 3.0★ (2) | 15 mi |
| Solar Tech | 5.0★ (1) | 7 mi |
| Source Lumen | 5.0★ (2) | 15 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 127 Guilford 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 Guilford 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 |