85/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 30 Google reviews, open 24/7.
- 5.0★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 140 Patriots Rd, East Templeton, MA 01438
Best Solar Installers in Amherst, MA (2026)
47 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Amherst: Old Glory Solar, CR Score 85/100; 5.0★ from 30 Google reviews; open 24/7.
- 16
Best for emergencies (open 24/7): New England Solar Electric, posts 24/7 hours; ranked #16 of 47.
- 23
Most-reviewed: Earthlight Technologies, 439 Google reviews at 4.9★, the most of 47 ranked; ranked #23.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
47 Amherst solar installers are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 17 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.9★ across 47 rated businesses.
Top 10 solar installers in Amherst at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Old Glory Solar | 85 | 5.0★ (30) | Athol, 28 mi away | 24/7 | Overall |
| 2 | All Energy Solar | 85 | 4.9★ (294) | Westfield, 21 mi away | Sat | — |
| 3 | Trinity Solar | 83 | 4.4★ (339) | Holyoke, 12 mi away | Sat · Evenings | — |
| 4 | Valley Solar | 82 | 4.9★ (201) | Easthampton, 10 mi away | — | — |
| 5 | Northeast Solar | 82 | 5.0★ (94) | Amherst | — | — |
| 6 | Everlast Energy & Roofing | 82 | 5.0★ (242) | Manchester, 39 mi away | Sat | — |
| 7 | Insight Energy Systems - Insight Solar | 81 | 4.8★ (115) | Amherst | — | — |
| 8 | Brad the Solar Guy | 81 | 5.0★ (20) | Northampton, 3 mi away | Sat · Evenings | — |
| 9 | PosiGen Home Solar | 81 | 4.5★ (96) | Ludlow, 12 mi away | Sun | — |
| 10 | Trio Solar | 79 | 5.0★ (34) | Enfield, 26 mi away | Sat · Evenings | — |
The 47 best solar installers in Amherst, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Westfield, 21 mi away
85/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 294 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 294 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 66-D Mainline Dr, Westfield, MA 01085
Based in Holyoke, 12 mi away
83/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.4★ from 339 Google reviews, listed on Google as “Solar energy company”.
- 4.4★ from 339 Google reviews
- Hours
- Mon–Fri 9 AM–8 PM · Sat 10 AM–4 PM · Sun closed
- Address
- 4 Open Square Way #410, Holyoke, MA 01040
#4 Valley Solar
Based in Easthampton, 10 mi away
82/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 201 Google reviews, listed on Google as “Solar energy system service”.
- 4.9★ from 201 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 116 Pleasant St Suite 321, Easthampton, MA 01027
Based in Amherst
82/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 94 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 136 Elm St, Hatfield, MA 01038
Based in Manchester, 39 mi away
82/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 242 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 242 Google reviews
- Hours
- Mon–Sat 10 AM–6 PM · Sun closed
- Address
- 135 Sheldon Rd Unit H, Manchester, CT 06042
Based in Amherst
81/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 115 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 115 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 59C North St, Hatfield, MA 01038
Based in Northampton, 3 mi away
81/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Fri 9 AM–7 PM · Sat 10 AM–2 PM · Sun closed
Based in Ludlow, 12 mi away
81/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.5★ from 96 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 96 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat closed · Sun 8 AM–8 PM
- Address
- 280 Moody St, Ludlow, MA 01056
#10 Trio Solar
Based in Enfield, 26 mi away
79/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 34 Google reviews
- Hours
- Mon–Sat 9 AM–9 PM · Sun closed
- Address
- 69 Fairview Ave, Enfield, CT 06082
#11 Sunrun Solar
Based in Chicopee, 13 mi away
79/100CR ScoreRanked #11 because of its Google rating and trade focus: 3.6★ from 130 Google reviews, listed on Google as “Solar energy company”.
- 3.6★ from 130 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 150 Padgette St Unit A, Chicopee, MA 01022
Based in Westfield, 19 mi away
78/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1 Arch Rd, Westfield, MA 01085
#13 PV Squared Solar
Based in Greenfield, 17 mi away
78/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 70 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 311 Wells St, Greenfield, MA 01301
#14 Éirí Group
Based in Beverly, 24 mi away
77/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 47 Google reviews
- Hours
- Mon–Fri 6 AM–7 PM · Sat–Sun closed
Based in Ashland, 24 mi away
77/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 62 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
Based in Canton, 21 mi away
77/100CR ScoreRanked #16 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 24/7.
- 4.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 401 Huntington Rd, Worthington, MA 01098
#17 Freedom Forever
Based in Ellington, 32 mi away
76/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 187 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 187 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 4 Revay Rd Unit B, East Windsor, CT 06088
Based in Economy, 20 mi away
76/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
Based in Tolland, 33 mi away
76/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.5★ from 15 Google reviews, listed on Google as “Solar energy company”.
- 3.5★ from 15 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 334 Babcock Rd, Tolland, CT 06084
#20 Avid Solar LLC
Based in Sterling, 37 mi away
75/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Solar energy system service”.
- 4.6★ from 9 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–5 PM
- Address
- 80 Wilder Rd, Sterling, MA 01564
#21 Lunex Power
Based in Worcester, 37 mi away
75/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 100 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 100 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun closed
- Address
- 95 Prescott St Suite 106, Worcester, MA 01605
Based in Northampton, 7 mi away
75/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 25 Main St #338, Northampton, MA 01060
Based in Ellington, 33 mi away
73/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 439 Google reviews, the most Google reviews on this list (439).
- 4.9★ from 439 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 128 West Rd, Ellington, CT 06029
#24 Swan Sun
Based in Coram, 36 mi away
73/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Sat 9 AM–7 PM · Sun closed
#25 ReVision Energy
Based in Westfield, 19 mi away
73/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 13 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 66 Westfield Industrial Park Rd, Westfield, MA 01085
All 47 solar installers
#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 | 73 | 5.0★ (9) | 16 mi |
| 27 | Al & son's LLC | 72 | 5.0★ (11) | 19 mi |
| 28 | Current Energy | 72 | 5.0★ (6) | 20 mi |
| 29 | Louth Callan LLC | 72 | 4.7★ (14) | 25 mi |
| 30 | Innovative Roofing Contractor | 71 | 4.7★ (13) | 36 mi |
| 31 | SunRun Solar | 71 | 1.0★ (6) | 26 mi |
| 32 | Modern Energy | 71 | 4.9★ (181) | 37 mi |
| 33 | Solar Consulting Inc | 69 | 3.7★ (3) | 36 mi |
| 34 | Rock-Vern Electric, Inc. | 69 | 4.5★ (30) | 35 mi |
| 35 | SunRun Solar | 68 | 1.0★ (3) | 38 mi |
| 36 | Berkshire Solar Sense | 67 | 5.0★ (3) | 39 mi |
| 37 | Finray Solar | 67 | 5.0★ (3) | 37 mi |
| 38 | Incite solar solutions | 67 | 3.7★ (6) | 38 mi |
| 39 | Green Earth Energy PhotoVoltaic Corporation | 67 | 2.6★ (10) | 31 mi |
| 40 | Phase Out Electric | 67 | 4.9★ (48) | 37 mi |
| 41 | KZS Electrical & Solar LLC | 66 | 5.0★ (4) | 38 mi |
| 42 | Green Earth Roofing Solutions LLC | 66 | 5.0★ (7) | 15 mi |
| 43 | Millstream Construction | 66 | 4.4★ (17) | 20 mi |
| 44 | Integrated Solar | 65 | 5.0★ (8) | 35 mi |
| 45 | Wattson Home Solutions | 65 | 4.3★ (110) | 37 mi |
| 46 | CTEC Solar, LLC | 64 | 3.5★ (23) | 36 mi |
| 47 | M.L. Schmitt Electric, Inc. | 63 | 3.3★ (3) | 16 mi |
Also serving Amherst
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) | 24 mi |
| Alpine Solar Heat and Hot Water, LLC | 5.0★ (2) | 30 mi |
| Brattleboro Solar Management | 5.0★ (1) | 34 mi |
| Domestic DC Systems | 16 mi | |
| Dyna, Inc. | 3.0★ (2) | 40 mi |
| Edison Energy Consultants LLC | 5.0★ (2) | 18 mi |
| Energy Saver Enablers, LLC | 5.0★ (1) | 40 mi |
| ESA | 15 mi | |
| Greenworks Alternatives | 11 mi | |
| Luminous Energy | 5.0★ (2) | 15 mi |
| Luminous Energy | 5.0★ (1) | 26 mi |
| Mars Solor | 12 mi | |
| Onlysolar Diagnostic | 5.0★ (1) | 36 mi |
| Solar Connect Local | In Amherst | |
| SolarGuru Energy | In Amherst | |
| SolarGuru Energy - Western MA Solar Company | 16 mi | |
| Spartan Solar | 5.0★ (2) | 22 mi |
| Spartan Solar | 5.0★ (1) | 17 mi |
| Sunpower Solar Design Center | 1.0★ (1) | 34 mi |
| Valley Solar Works | In Amherst |
How much do solar installers cost in Amherst?
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 |
How we ranked Amherst solar installers
We scored 47 Amherst solar installers on 8 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. Unknown factors are left out of the score, 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 Amherst data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Solar installers in Amherst: frequently asked questions
Who is the best solar installer in Amherst?
By CR Score, the highest-ranked solar installer in Amherst, MA is Old Glory Solar with a CR Score of 85/100. It has 5.0★ from 30 Google reviews. It is open 24/7. All Energy Solar (#2) and Trinity Solar (#3) follow. We ranked 47 solar installers on 8 factors, last updated October 22, 2026.
How many solar installers are there in Amherst?
ContractorsRanked ranks 47 solar installers serving Amherst, MA. 2 of them are based in Amherst; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which solar installers in Amherst are open 24/7?
3 ranked solar installers in Amherst post 24/7 hours. The highest-ranked are Old Glory Solar (#1) and New England Solar Electric (#16). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Amherst work on weekends?
17 of 47 ranked solar installers post Saturday hours and 8 post Sunday hours. The highest-ranked open Saturdays are Old Glory Solar (#1), All Energy Solar (#2) and Trinity Solar (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Amherst?
Solar panel installation typically costs $28,990 to $35,670, with $32,790 typical (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)). The range is adjusted for Massachusetts. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Amherst solar installers have?
The median Google rating among 47 rated solar installers in Amherst is 4.9★, with a median of 15 reviews. Earthlight Technologies has the most, 439 reviews, and ranks #23. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank solar installers?
Each solar installer gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do solar installers outside Amherst count in this ranking?
Yes, if they are within 40 mi of the Amherst city center, our service radius for solar installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Amherst
- October 2026: CR Scores recalculated for 47 solar installers serving Amherst.
- October 2026: 1 duplicate listing merged.
More solar installers and Amherst pages
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