95 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mattapoisett: Isaksen Solar, CR Score 63/100; 4.9★ from 591 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Premier Energy Solutions Inc., posts 24/7 hours; ranked #2 of 95.
Most-reviewed: Summit Energy, 824 Google reviews at 4.7★, the most of 95 ranked; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
95 Mattapoisett solar installers are ranked here by CR Score, from ten published factors. 11 are open 24/7, 49 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.9★ across 95 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Isaksen Solar | 63 | 4.9★ (591) | Fall River, 18 mi away | Sat · Sun · Evenings | Overall |
| 2 | Premier Energy Solutions Inc. | 60 | 5.0★ (663) | Middleborough, 11 mi away | 24/7 | Emergencies |
| 3 | Trinity Solar | 60 | 4.5★ (457) | Acushnet, 9 mi away | Sat · Evenings | — |
| 4 | Portside Renewables LLC. | 60 | 5.0★ (39) | Mattapoisett | — | — |
| 5 | Sunrun Solar | 59 | 4.5★ (476) | Taunton, 26 mi away | Sat · Sun | — |
| 6 | Cotuit Solar LLC | 58 | 5.0★ (178) | Mashpee, 18 mi away | — | — |
| 7 | DO IT RIGHT SOLAR | 57 | 5.0★ (208) | Hopkinton, 37 mi away | Sat · Evenings | — |
| 8 | Solar Rising | 57 | 5.0★ (127) | Mashpee, 17 mi away | — | — |
| 9 | Neighborhood Solar | 57 | 5.0★ (45) | Newport, 28 mi away | Sat · Sun · Evenings | — |
| 10 | Rooftop Power | 57 | 4.8★ (810) | Warwick, 35 mi away | — | — |
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 591 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Middleborough, 11 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 663 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acushnet, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.5★ from 457 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mattapoisett
Ranked #4 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Taunton, 26 mi away
Ranked #5 because of its Google rating and trade focus: 4.5★ from 476 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mashpee, 18 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 178 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hopkinton, 37 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 208 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mashpee, 17 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newport, 28 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warwick, 35 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 810 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Providence, 33 mi away
Ranked #11 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 Mansfield, 34 mi away
Ranked #12 because of its Google rating and review volume: 4.7★ from 824 Google reviews, the most in Mattapoisett.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Berkley, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 122 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acushnet, 11 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Providence, 29 mi away
Ranked #15 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 Bristol, 24 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hyannis, 27 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 122 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pawtucket, 33 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 305 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bristol, 24 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 251 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Bedford, 6 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Providence, 33 mi away
Ranked #21 because of its Google rating and review volume: 5.0★ from 254 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hyannis, 27 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cumberland, 36 mi away
Ranked #23 because of its Google rating and review volume: 4.9★ from 354 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warwick, 33 mi away
Ranked #24 because of its Google rating and trade focus: 4.5★ 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 Taunton, 26 mi away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 238 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 95 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | GoGreen with Glenn – Solar & Battery Backup | 54 | 5.0★ (18) | 32 mi |
| 27 | Isaksen Solar | 54 | 5.0★ (17) | 9 mi |
| 28 | RES Solar | 54 | 5.0★ (14) | 39 mi |
| 29 | RTP Roofing | 54 | 5.0★ (197) | 35 mi |
| 30 | Oberon Initiatives Inc. | 54 | 4.9★ (149) | 34 mi |
| 31 | Sunfinity Power | 54 | 4.9★ (65) | 38 mi |
| 32 | Whaling City Solar | 54 | 4.6★ (17) | 6 mi |
| 33 | Beacon Solar - Sales Office | 54 | 4.9★ (55) | 24 mi |
| 34 | QSPS Housing Solutions | 54 | 4.8★ (283) | 36 mi |
| 35 | Gopower llc | 53 | 5.0★ (24) | 32 mi |
| 36 | Proto Home Service Plumbing Heating & Cooling 24/7 | 53 | 5.0★ (139) | 36 mi |
| 37 | Solar Savings Solutions LLC | 53 | 5.0★ (5) | 24 mi |
| 38 | Baylies Insulation | 53 | 4.9★ (74) | 16 mi |
| 39 | Sunwatt Solar | 53 | 4.9★ (79) | 33 mi |
| 40 | AG Electric & Solar | 53 | 5.0★ (11) | 34 mi |
| 41 | Southcoast Greenlight Energy, Inc. | 53 | 4.9★ (28) | 21 mi |
| 42 | Devlin Energy | 53 | 3.9★ (76) | 36 mi |
| 43 | Trinity Solar | 52 | 4.1★ (106) | 32 mi |
| 44 | Earth Centric Solar | 52 | 4.4★ (7) | 31 mi |
| 45 | Southern Light Solar | 52 | 3.5★ (14) | 6 mi |
| 46 | Luminous Energy | 52 | 4.5★ (8) | 34 mi |
| 47 | E2 Solar | 52 | 4.9★ (45) | 35 mi |
| 48 | Plymouth Solar Energy | 52 | 5.0★ (4) | 22 mi |
| 49 | World Power LLP | 51 | 5.0★ (9) | 31 mi |
| 50 | Better Future Solar Water | 51 | 5.0★ (16) | 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 |
|---|---|---|
| Alternate Energy | 5.0★ (1) | 17 mi |
| Associated Energy Developers (AED) | 5.0★ (2) | 22 mi |
| Beaumont Solar Company | 1.0★ (2) | 6 mi |
| Cazeault Paul J And Sons Roofing | 5.0★ (1) | 22 mi |
| CMT Energy | 3.0★ (1) | 20 mi |
| Dartmouth Solar LLC | 5.0★ (1) | 11 mi |
| DC Solar Inc. | 5.0★ (1) | 24 mi |
| Devlin Contracting | 5.0★ (2) | 39 mi |
| Green Seal Environmental, LLC | 5.0★ (2) | 17 mi |
| LastMile Energy, LLC | 5.0★ (2) | 37 mi |
| Love Solar Energy Services | 3.0★ (2) | 29 mi |
| Nusun | In Mattapoisett | |
| RooflessSolar | 5.0★ (1) | 15 mi |
| Solar Powered by Mario's | 5.0★ (2) | 34 mi |
| Solar Systems | 5.0★ (1) | 18 mi |
| Sun Rhode Island Solar Alliance, LLC (SUNRISA) | 5.0★ (2) | 36 mi |
| Sunergy Solutions, LLC | 5.0★ (2) | 36 mi |
| Sunny Days Solar | 5.0★ (1) | 11 mi |
| US SolarWorks | 5.0★ (2) | 32 mi |
| VIElectron | In Mattapoisett |
Typical prices in USD, adjusted for Massachusetts 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 95 Mattapoisett 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 Mattapoisett 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 |