47 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Northampton: All Energy Solar, CR Score 62/100; 4.9★ from 294 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): Old Glory Solar, posts 24/7 hours; ranked #9 of 47.
Most-reviewed: Earthlight Technologies, 439 Google reviews at 4.9★, the most of 47 ranked; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
47 Northampton solar installers are ranked here by CR Score, from ten published factors. 5 are open 24/7, 22 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.9★ across 47 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All Energy Solar | 62 | 4.9★ (294) | Westfield, 16 mi away | Sat | Overall |
| 2 | Valley Solar | 61 | 4.9★ (201) | Easthampton, 4 mi away | — | — |
| 3 | Trinity Solar | 60 | 4.4★ (339) | Holyoke, 9 mi away | Sat · Evenings | — |
| 4 | Northeast Solar | 59 | 5.0★ (94) | Amherst, 3 mi away | — | — |
| 5 | Insight Energy Systems - Insight Solar | 59 | 4.8★ (115) | Amherst, 5 mi away | — | — |
| 6 | Everlast Energy & Roofing | 58 | 5.0★ (242) | Manchester, 37 mi away | Sat | — |
| 7 | Brad the Solar Guy | 58 | 5.0★ (20) | Northampton | Sat · Evenings | — |
| 8 | PosiGen Home Solar | 58 | 4.5★ (96) | Ludlow, 12 mi away | Sun | — |
| 9 | Old Glory Solar | 57 | 5.0★ (30) | Athol, 35 mi away | 24/7 | Emergencies |
| 10 | Premier Improvements Solar | 57 | 4.9★ (81) | West Hartford, 39 mi away | Sat · Sun · Evenings | — |
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: 4.9★ from 294 Google reviews, listed on Google as “Solar energy company”.
Based in Easthampton, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 201 Google reviews, listed on Google as “Solar energy system service”.
Based in Holyoke, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.4★ from 339 Google reviews, listed on Google as “Solar energy company”.
Based in Amherst, 3 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “Solar energy company”.
Based in Amherst, 5 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 115 Google reviews, listed on Google as “Solar energy company”.
Based in Manchester, 37 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 242 Google reviews, listed on Google as “Solar energy company”.
Based in Northampton
Ranked #7 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Ludlow, 12 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 96 Google reviews, listed on Google as “Solar energy company”.
Based in Athol, 35 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar energy company”.
Based in West Hartford, 39 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Solar energy company”.
Based in Chicopee, 11 mi away
Ranked #11 because of its Google rating and trade focus: 3.6★ from 130 Google reviews, listed on Google as “Solar energy company”.
Based in Ashland, 20 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based in Enfield, 23 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Solar energy company”.
Based in Greenfield, 19 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Solar energy company”.
Based in Beverly, 20 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Solar energy company”.
Based in Ellington, 28 mi away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 187 Google reviews, listed on Google as “Solar energy company”.
Based in Northampton
Ranked #17 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy company”.
Based in Bristol, 39 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based in Westfield, 14 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Economy, 18 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based in Westfield, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based in Glastonbury Center, 38 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based in Tolland, 33 mi away
Ranked #23 because of its Google rating and trade focus: 3.5★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based in Ellington, 32 mi away
Ranked #24 because of its Google rating and review volume: 4.9★ from 439 Google reviews, the most in Northampton.
Based in Ludlow, 23 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
#1 to #25 are shown in full above. Here are #26 to #47, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Greenfield Solar | 51 | 5.0★ (9) | 18 mi |
| 27 | New England Solar Electric | 51 | 4.0★ (4) | 15 mi |
| 28 | Louth Callan LLC | 51 | 4.7★ (14) | 23 mi |
| 29 | Swan Sun | 51 | 5.0★ (6) | 29 mi |
| 30 | SunVivo | 50 | 5.0★ (4) | 38 mi |
| 31 | East HartFord Solar | 50 | 4.8★ (4) | 38 mi |
| 32 | Current Energy | 50 | 5.0★ (6) | 23 mi |
| 33 | Norwich Solar | 49 | 4.7★ (3) | 40 mi |
| 34 | SunRun Solar | 48 | 1.0★ (6) | 31 mi |
| 35 | Society Roofing & Solar | 48 | 4.8★ (20) | 38 mi |
| 36 | Green Earth Energy PhotoVoltaic Corporation | 48 | 2.6★ (10) | 27 mi |
| 37 | Innovative Roofing Contractor | 48 | 4.7★ (13) | 29 mi |
| 38 | Incite solar solutions | 48 | 3.7★ (6) | 32 mi |
| 39 | Verogy | 47 | 4.2★ (5) | 40 mi |
| 40 | Rock-Vern Electric, Inc. | 46 | 4.5★ (30) | 34 mi |
| 41 | Millstream Construction | 46 | 4.4★ (17) | 14 mi |
| 42 | Berkshire Solar Sense | 45 | 5.0★ (3) | 34 mi |
| 43 | Green Earth Roofing Solutions LLC | 45 | 5.0★ (7) | 14 mi |
| 44 | CTEC Solar, LLC | 45 | 3.5★ (23) | 31 mi |
| 45 | Integrated Solar | 44 | 5.0★ (8) | 38 mi |
| 46 | TRC SOLAR & ELECTRICAL LLC | 44 | 3.7★ (3) | 37 mi |
| 47 | M.L. Schmitt Electric, Inc. | 44 | 3.3★ (3) | 12 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) | 31 mi |
| Alpine Solar Heat and Hot Water, LLC | 5.0★ (2) | 26 mi |
| Brad Carmody Solar Consultant | 5.0★ (1) | In Northampton |
| Brattleboro Solar Management | 5.0★ (1) | 37 mi |
| Dcs Energy | 5.0★ (2) | 39 mi |
| Dyna, Inc. | 3.0★ (2) | 37 mi |
| EcoGen America | 5.0★ (2) | 39 mi |
| Edison Energy Consultants LLC | 5.0★ (2) | 24 mi |
| Green Power On | 5.0★ (1) | 40 mi |
| Greenworks Alternatives | 4 mi | |
| J&S Industry llc | 5.0★ (1) | 40 mi |
| Last Stop Solar | 5.0★ (2) | 39 mi |
| Luminous Energy | 5.0★ (2) | 11 mi |
| Luminous Energy | 5.0★ (1) | 27 mi |
| Mars Solor | 8 mi | |
| Solar Connect Local | 6 mi | |
| SolarGuru Energy | 6 mi | |
| Spartan Solar | 5.0★ (2) | 27 mi |
| Spartan Solar | 5.0★ (1) | 19 mi |
| Sunpower Solar Design Center | 1.0★ (1) | 32 mi |
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 47 Northampton 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 Northampton 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 |