120 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Thompson: Boundless, Inc., CR Score 60/100; 4.8★ from 464 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Shamrock Well and Pump LLC, posts 24/7 hours; ranked #13 of 120.
Most-reviewed: Summit Energy, 824 Google reviews at 4.7★, the most of 120 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
120 Thompson solar installers are ranked here by CR Score, from ten published factors. 11 are open 24/7, 63 open Saturdays and 27 open Sundays, based on posted hours. The median Google rating is 4.9★ across 120 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Boundless, Inc. | 60 | 4.8★ (464) | Marlborough, 30 mi away | Sat · Sun | Overall |
| 2 | Rooftop Power | 58 | 4.8★ (810) | Warwick, 25 mi away | — | — |
| 3 | DO IT RIGHT SOLAR | 58 | 5.0★ (208) | Hopkinton, 31 mi away | Sat · Evenings | — |
| 4 | Mark The Solar Expert | 58 | 4.9★ (35) | Grafton, 14 mi away | Sat · Sun · Evenings | — |
| 5 | OneGrid Energy Integration | 58 | 5.0★ (57) | Providence, 25 mi away | Sat · Sun · Evenings | — |
| 6 | Sunrun Solar | 57 | 4.5★ (476) | Taunton, 38 mi away | Sat · Sun | — |
| 7 | Everlast Energy & Roofing | 57 | 5.0★ (242) | Manchester, 35 mi away | Sat | — |
| 8 | KnowSolar.com | 57 | 5.0★ (20) | Seekonk, 5 mi away | Sat · Evenings | — |
| 9 | Sunfinity Power | 57 | 4.9★ (65) | Johnston, 20 mi away | Sat · Evenings | — |
| 10 | Summit Energy | 57 | 4.7★ (824) | Mansfield, 32 mi away | — | Most reviews |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 464 Google reviews, listed on Google as “Solar energy company”.
Based in Warwick, 25 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 810 Google reviews, listed on Google as “Solar energy company”.
Based in Hopkinton, 31 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 208 Google reviews, listed on Google as “Solar energy system service”.
Based in Grafton, 14 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Solar energy company”.
Based in Providence, 25 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Solar energy company”.
Based in Taunton, 38 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 476 Google reviews, listed on Google as “Solar energy company”.
Based in Manchester, 35 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 242 Google reviews, listed on Google as “Solar energy company”.
Based in Seekonk, 5 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Johnston, 20 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “Solar energy company”.
Based in Mansfield, 32 mi away
Ranked #10 because of its Google rating and review volume: 4.7★ from 824 Google reviews, the most in Thompson.
Based in East Greenwich, 10 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Solar energy company”.
Based in Pawtucket, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 305 Google reviews, listed on Google as “Solar energy company”.
Based in Cumberland, 24 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 354 Google reviews.
Based in Shrewsbury, 23 mi away
Ranked #14 because of its Google rating and trade focus: 4.1★ from 239 Google reviews, listed on Google as “Solar energy company”.
Based in Charlestown, 38 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 123 Google reviews, listed on Google as “Solar energy system service”.
Based in Providence, 25 mi away
Ranked #16 because of its Google rating and review volume: 5.0★ from 254 Google reviews.
Based in Johnston, 22 mi away
Ranked #17 because of its Google rating and review volume: 4.8★ from 283 Google reviews.
Based in Grafton, 25 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 174 Google reviews.
Based in Warwick, 25 mi away
Ranked #19 because of its Google rating and review volume: 5.0★ from 197 Google reviews.
Based in Braintree, 11 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Solar energy company”.
Based in Warwick, 26 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 46 Google reviews, listed on Google as “Solar energy company”.
Based in East Providence, 29 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based in Holden, 5 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy system service”.
Based in Haverhill, 11 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Solar energy system service”.
Based in Douglas, 5 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”.
#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 120 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Apollo Energy USA | 55 | 4.8★ (8) | 5 mi |
| 27 | Lunex Power | 55 | 4.7★ (100) | 22 mi |
| 28 | NEC Electric & Solar | 55 | 5.0★ (115) | 39 mi |
| 29 | GoGreen with Glenn – Solar & Battery Backup | 55 | 5.0★ (18) | 27 mi |
| 30 | Momentum Solar Massachusetts | 55 | 4.0★ (198) | 29 mi |
| 31 | On Call Electric | 54 | 5.0★ (164) | 31 mi |
| 32 | AG Electric & Solar | 54 | 5.0★ (11) | 24 mi |
| 33 | Sunwatt Solar | 54 | 4.9★ (79) | 25 mi |
| 34 | Suntastic Solutions | 54 | 4.8★ (26) | 26 mi |
| 35 | Gopower llc | 54 | 5.0★ (24) | 26 mi |
| 36 | Brightstar Solar | 54 | 4.9★ (100) | 31 mi |
| 37 | The Solar Guys | 54 | 5.0★ (32) | 31 mi |
| 38 | Mass Energy Savers | 54 | 4.5★ (8) | 11 mi |
| 39 | Right Way Energy Group | 54 | 5.0★ (10) | 5 mi |
| 40 | NEC Solar | 54 | 5.0★ (91) | 35 mi |
| 41 | NEC Electric & Solar | 53 | 4.9★ (251) | 35 mi |
| 42 | Luminous Energy | 53 | 4.5★ (8) | 24 mi |
| 43 | PosiGen Home Solar | 53 | 4.5★ (96) | 37 mi |
| 44 | Trio Solar | 53 | 5.0★ (34) | 38 mi |
| 45 | GM Industries, Inc | 53 | 3.5★ (15) | 23 mi |
| 46 | Freedom Forever | 53 | 4.6★ (187) | 38 mi |
| 47 | Freedom Forever | 53 | 4.5★ (238) | 37 mi |
| 48 | SGE Solar - Second Generation Energy | 53 | 4.7★ (35) | 22 mi |
| 49 | Better Future Solar Water | 53 | 5.0★ (16) | 29 mi |
| 50 | Solar Grids Boston | 53 | 5.0★ (3) | 11 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 |
|---|---|---|
| 777 Smart Solar & Cleaning | 5.0★ (2) | 11 mi |
| Accredited Solar Advisors | 5.0★ (2) | 5 mi |
| Alex Valley Electrician | 5.0★ (2) | 37 mi |
| Dcs Energy | 5.0★ (2) | 37 mi |
| Direct Energy Plan | 5.0★ (2) | 11 mi |
| Dyna, Inc. | 3.0★ (2) | 37 mi |
| Green Earth Energy Photovoltaic | 5.0★ (1) | 5 mi |
| iSP (Ion Solar Pros) | 5.0★ (2) | 23 mi |
| Isun Solar | 5.0★ (1) | 5 mi |
| LastMile Energy, LLC | 5.0★ (2) | 39 mi |
| Love Solar Energy Services | 3.0★ (2) | 29 mi |
| Relay Power | 4.0★ (2) | 34 mi |
| Samaritan Solar | 5.0★ (2) | 11 mi |
| Solar By Jake | 4.5★ (2) | 17 mi |
| Solar Rays | 5.0★ (2) | 11 mi |
| Sun Nerds Solar NE | 5.0★ (1) | 5 mi |
| Sun Rhode Island Solar Alliance, LLC (SUNRISA) | 5.0★ (2) | 34 mi |
| Sunergy Solutions, LLC | 5.0★ (2) | 34 mi |
| US SolarWorks | 5.0★ (2) | 29 mi |
| Waldo Renewable Electric, LLC | 4.0★ (2) | 18 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 120 Thompson 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 Thompson 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 |