139 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Nashua: Boundless, Inc., CR Score 58/100; 4.8★ from 464 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Team Sunshine Construction, LLC., posts 24/7 hours; ranked #2 of 139.
Most-reviewed: Neeeco, 3,580 Google reviews at 4.9★, the most of 139 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
139 Nashua solar installers are ranked here by CR Score, from ten published factors. 18 are open 24/7, 87 open Saturdays and 37 open Sundays, based on posted hours. The median Google rating is 4.9★ across 139 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Boundless, Inc. | 58 | 4.8★ (464) | Marlborough, 30 mi away | Sat · Sun | Overall |
| 2 | Team Sunshine Construction, LLC. | 57 | 4.7★ (181) | Boston, 33 mi away | 24/7 | Emergencies |
| 3 | Sunrun Solar | 57 | 4.4★ (276) | Billerica, 21 mi away | Sat · Sun | — |
| 4 | Boston Solar | 56 | 4.7★ (1,357) | Woburn, 24 mi away | — | — |
| 5 | Great Sky Solar | 56 | 5.0★ (468) | Lexington, 27 mi away | — | — |
| 6 | Sunrun Solar | 56 | 4.4★ (27) | Londonderry, 9 mi away | Sat · Sun | — |
| 7 | Helios Solar Energy | 56 | 5.0★ (43) | Methuen, 15 mi away | Sat · Evenings | — |
| 8 | Old Glory Solar | 56 | 5.0★ (30) | Athol, 32 mi away | 24/7 | — |
| 9 | M&B Solar Consortium | 56 | 5.0★ (20) | Andover, 18 mi away | Sat · Sun · Evenings | — |
| 10 | Neeeco | 56 | 4.9★ (3,580) | Wilmington, 20 mi away | Sat · Evenings | Most reviews |
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: 4.8★ from 464 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 33 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 181 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Billerica, 21 mi away
Ranked #3 because of its Google rating and trade focus: 4.4★ from 276 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woburn, 24 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 1,357 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lexington, 27 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 468 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Londonderry, 9 mi away
Ranked #6 because of its Google rating and trade focus: 4.4★ 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 Methuen, 15 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Athol, 32 mi away
Ranked #8 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 Andover, 18 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wilmington, 20 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 3,580 Google reviews, the most in Nashua.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Derry, 11 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Ashburnham, 17 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 18 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 18 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ 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 Milford, 14 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Danvers, 28 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 213 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 35 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 1,027 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Danvers, 30 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woburn, 25 mi away
Ranked #18 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 Auburn, 10 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ 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 Haverhill, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Billerica, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tewksbury, 15 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 100 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bedford, 11 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookline, 28 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chelmsford, 14 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 82 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 139 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Clean Solar Energy - Massachusetts | 54 | 5.0★ (23) | 30 mi |
| 27 | ReVision Energy | 54 | 4.8★ (139) | 22 mi |
| 28 | NEC Electric & Solar | 54 | 5.0★ (115) | 36 mi |
| 29 | Go Green Industries | 54 | 4.9★ (15) | 15 mi |
| 30 | Bright Home Solutions, Inc. | 54 | 5.0★ (62) | 20 mi |
| 31 | East Coast Renewable Energy, LLC | 54 | 5.0★ (19) | 6 mi |
| 32 | Everest Solar | 54 | 5.0★ (14) | 26 mi |
| 33 | PosiGen Home Solar | 54 | 4.4★ (23) | 13 mi |
| 34 | Liddell Solar | 54 | 5.0★ (27) | 23 mi |
| 35 | Future Energy Solar | 54 | 4.9★ (114) | 25 mi |
| 36 | Porter Electrical Contracting | 54 | 5.0★ (35) | 28 mi |
| 37 | Intelligent Solar | 53 | 5.0★ (44) | 18 mi |
| 38 | Sunday Energy | 53 | 4.9★ (19) | 17 mi |
| 39 | Ecoflux cleaning and professional services | 53 | 4.7★ (81) | 11 mi |
| 40 | Owen Ladd Solar | 53 | 5.0★ (5) | 30 mi |
| 41 | 180 South Solar | 53 | 5.0★ (5) | 20 mi |
| 42 | VAALT Energy | 53 | 5.0★ (5) | 11 mi |
| 43 | ACE Solar | 53 | 4.6★ (77) | 18 mi |
| 44 | On Call Electric | 53 | 5.0★ (164) | 30 mi |
| 45 | Leominster Solar Solutions | 53 | 5.0★ (5) | 21 mi |
| 46 | Momentum Solar Massachusetts | 53 | 4.0★ (198) | 32 mi |
| 47 | SunPower Corporation | 53 | 4.5★ (154) | 35 mi |
| 48 | Danville Solar Co | 53 | 5.0★ (12) | 21 mi |
| 49 | Freedom Forever | 53 | 4.4★ (261) | 24 mi |
| 50 | Brightstar Solar | 53 | 4.9★ (100) | 30 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 |
|---|---|---|
| Alex Valley Electrician | 5.0★ (2) | 37 mi |
| Anar Solar | 5.0★ (1) | 12 mi |
| BD Electrical & Solar | 5.0★ (2) | 39 mi |
| Beacon Energy Solutions LLC | In Nashua | |
| Bright Lite Energy | 3.0★ (2) | 34 mi |
| Focus Electrical Solar Dracut MA | 5.0★ (1) | 10 mi |
| Go Solar | 5.0★ (2) | 34 mi |
| iSP (Ion Solar Pros) | 5.0★ (2) | 39 mi |
| NEC Solar | 5.0★ (2) | 31 mi |
| New Leaf Energy | 1.0★ (1) | 11 mi |
| One Stop Electrics | 5.0★ (15) | In Nashua |
| Relay Power | 4.0★ (2) | 26 mi |
| Renewables Worldwide, Inc. | 5.0★ (2) | 17 mi |
| SolarNara | 5.0★ (1) | 17 mi |
| Stellaris Corporation | In Nashua | |
| Summit Energy | 1.0★ (1) | 16 mi |
| Sun Diagnostics Company | 5.0★ (2) | 15 mi |
| Sun Hour Energy | 5.0★ (2) | 23 mi |
| Tesla Solar | 3.0★ (2) | 35 mi |
| Walley's Heating & Air | 4.9★ (793) | In Nashua |
Typical prices in USD, adjusted for New Hampshire 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 139 Nashua 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 Nashua 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 |