134 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Islip: Long Island Power Solutions, CR Score 65/100; 4.9★ from 791 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Renew Solar Services, posts 24/7 hours; ranked #3 of 134.
Most-reviewed: NY State Solar, 1,072 Google reviews at 4.8★, the most of 134 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
134 Islip solar installers are ranked here by CR Score, from ten published factors. 12 are open 24/7, 74 open Saturdays and 47 open Sundays, based on posted hours. The median Google rating is 4.9★ across 134 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Long Island Power Solutions | 65 | 4.9★ (791) | Ronkonkoma, 7 mi away | Sat · Sun · Evenings | Overall |
| 2 | SUNation Energy | 64 | 4.7★ (930) | Ronkonkoma, 6 mi away | Sat · Sun | — |
| 3 | Renew Solar Services | 63 | 5.0★ (85) | Babylon, 6 mi away | 24/7 | Emergencies |
| 4 | Truth Solar | 62 | 5.0★ (57) | Hauppauge, 5 mi away | 24/7 | — |
| 5 | NY State Solar | 62 | 4.8★ (1,072) | Hicksville, 18 mi away | Sat · Evenings | Most reviews |
| 6 | GreenLeaf Solar | 61 | 4.7★ (95) | Centereach, 13 mi away | 24/7 | — |
| 7 | Leviathan Solar | 59 | 4.9★ (46) | Ronkonkoma, 7 mi away | Sat · Sun · Evenings | — |
| 8 | Wood Kingdom West | 59 | 4.5★ (184) | Farmingdale, 11 mi away | Sat · Sun | — |
| 9 | Momentum Solar New York | 59 | 4.4★ (751) | Plainview, 14 mi away | Sat · Evenings | — |
| 10 | Sunrun Solar | 59 | 4.4★ (308) | Westbury, 18 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: 4.9★ from 791 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ronkonkoma, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 930 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Babylon, 6 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 85 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hauppauge, 5 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hicksville, 18 mi away
Ranked #5 because of its Google rating and review volume: 4.8★ from 1,072 Google reviews, the most in Islip.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Centereach, 13 mi away
Ranked #6 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 Ronkonkoma, 7 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmingdale, 11 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 184 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plainview, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.4★ from 751 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westbury, 18 mi away
Ranked #10 because of its Google rating and trade focus: 4.4★ from 308 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ronkonkoma, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.4★ from 214 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Babylon, 7 mi away
Ranked #12 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 Farmingdale, 11 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ 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 White Plains, 36 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 248 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Hills, 15 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coram, 17 mi away
Ranked #16 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.
Based in Bohemia, 7 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holtsville, 10 mi away
Ranked #18 because of its Google rating and trade focus: 4.4★ 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 Hicksville, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 33 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Coram, 17 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ 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 Farmingdale, 11 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 683 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Darien, 31 mi away
Ranked #22 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 Darien, 27 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 563 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Greenburgh, 40 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 269 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Deer Park, 7 mi away
Ranked #25 because of its Google rating and review volume: 5.0★ from 80 Google reviews.
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 134 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Long Island Solar Sales | 56 | 5.0★ (25) | 8 mi |
| 27 | ECOVOLT: Solar Energy | 56 | 5.0★ (6) | 15 mi |
| 28 | Mpower Solar | 56 | 4.8★ (263) | 39 mi |
| 29 | Munn’s Panel Wash – Solar Panel Cleaning, Bird Proofing ,Gutter Cleaning and Gutter Guards | 56 | 5.0★ (70) | 27 mi |
| 30 | Marcor Solar | 56 | 4.9★ (49) | 10 mi |
| 31 | NYS Essential Power | 56 | 4.5★ (104) | 7 mi |
| 32 | Organic Light | 55 | 4.9★ (43) | 30 mi |
| 33 | Hytech Home | 55 | 4.8★ (475) | 5 mi |
| 34 | SunQuest Solar | 55 | 4.9★ (80) | 30 mi |
| 35 | Solaroof NY | 55 | 4.9★ (53) | 11 mi |
| 36 | SunNectar | 55 | 5.0★ (8) | 13 mi |
| 37 | Advanced Solar Solutions | 54 | 4.9★ (70) | 32 mi |
| 38 | Sunmotion | 54 | 5.0★ (16) | 26 mi |
| 39 | Professional Power Electric | 54 | 4.8★ (43) | 6 mi |
| 40 | Redefine Solar | 54 | 5.0★ (16) | 17 mi |
| 41 | Evolve Energy Group | 54 | 4.4★ (7) | 25 mi |
| 42 | Kamtech Solar Solutions | 54 | 4.8★ (146) | 29 mi |
| 43 | Solarblocks Energy | 54 | 5.0★ (31) | 27 mi |
| 44 | Precision Solar | 54 | 5.0★ (140) | 36 mi |
| 45 | Long Island Precision Roofing | 54 | 5.0★ (200) | 14 mi |
| 46 | NY Energy | 54 | 4.4★ (19) | 16 mi |
| 47 | Element Energy Systems (E2SYS) | 54 | 4.8★ (98) | 39 mi |
| 48 | Parkway Solar Installation | 53 | 4.8★ (47) | 33 mi |
| 49 | SunPlus1 | 53 | 5.0★ (4) | 16 mi |
| 50 | Energy By Choice, LTD. | 53 | 5.0★ (23) | 14 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 |
|---|---|---|
| 1st Light Energy | 3.0★ (2) | 31 mi |
| 718 Solar of Nassau | 5.0★ (1) | 27 mi |
| All Seasons Solar | 5.0★ (1) | 6 mi |
| Atlantic Beach Solar Clean Energy Systems | 5.0★ (1) | 29 mi |
| Build My Solar | 5.0★ (2) | 6 mi |
| Dynamic Solar LLC | 5.0★ (1) | 11 mi |
| Forever Roofing LLC | 4.0★ (2) | 30 mi |
| Kamtech Solar | 5.0★ (2) | 7 mi |
| LICSC Long Island commercial solar cleaning | 5.0★ (1) | 9 mi |
| Medford Solar Power | 5.0★ (2) | 13 mi |
| NJ Solar Panels | 5.0★ (2) | 40 mi |
| Norwalk Solar | 4.5★ (2) | 29 mi |
| Solar Energy Ads | 5.0★ (2) | 34 mi |
| Solares Ceramic & Remodeling Services | 5.0★ (2) | 33 mi |
| SolarOPower LLC | New Hyde Park | 4.0★ (1) | 24 mi |
| Solectric NY | 5.0★ (2) | 27 mi |
| Star Power Solar | 5.0★ (2) | 4 mi |
| Sun Solar Products | 1.0★ (1) | 12 mi |
| SUNPOWER DIRECT LONG ISLAND | 5.0★ (1) | 20 mi |
| Westport Solar Consultants | 5.0★ (1) | 29 mi |
Typical prices in USD, adjusted for New York with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $33,090 | $37,430 | $40,720 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.20 Middle Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 134 Islip 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 Islip 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 |