90/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 181 Google reviews, open 24/7.
- 4.7★ from 181 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 24 Spice St, Boston, MA 02129
Best Solar Installers in Cambridge, MA (2026)
175 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Cambridge: Team Sunshine Construction, LLC., CR Score 90/100; 4.7★ from 181 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): NEC Electric & Solar, posts 24/7 hours; ranked #2 of 175.
- 21
Most-reviewed: Neeeco, 3,580 Google reviews at 4.9★, the most of 175 ranked; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
175 Cambridge solar installers are ranked here by CR Score, from 8 published factors. 19 are open 24/7, 104 open Saturdays and 45 open Sundays, based on posted hours. The median Google rating is 4.9★ across 175 rated businesses.
Most of this list also appears on the Solar installers in Boston ranking. See Solar installers in Boston
Top 10 solar installers in Cambridge at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Team Sunshine Construction, LLC. | 90 | 4.7★ (181) | Boston, 2 mi away | 24/7 | Overall |
| 2 | NEC Electric & Solar | 85 | 5.0★ (115) | Needham, 10 mi away | 24/7 | Emergencies |
| 3 | Kind Heart Solar Solutions | 84 | 5.0★ (5) | Boston, 3 mi away | 24/7 | — |
| 4 | Northeast Industrial Roof | 84 | 5.0★ (123) | Medford, 3 mi away | 24/7 | — |
| 5 | RES Solar | 83 | 5.0★ (14) | Cohasset, 19 mi away | 24/7 | — |
| 6 | Boundless, Inc. | 83 | 4.8★ (464) | Marlborough, 25 mi away | Sat · Sun | — |
| 7 | Clean Solar Energy - Massachusetts | 83 | 5.0★ (23) | Saugus, 8 mi away | Sat · Sun | — |
| 8 | Sunrun Solar | 83 | 4.4★ (276) | Billerica, 12 mi away | Sat · Sun | — |
| 9 | Great Sky Solar | 82 | 5.0★ (468) | Lexington, 6 mi away | — | — |
| 10 | EnergySage | 82 | 4.8★ (1,027) | Boston, 3 mi away | — | — |
The 175 best solar installers in Cambridge, 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 Needham, 10 mi away
85/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 115 Google reviews, open 24/7.
- 5.0★ from 115 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10 Oak St Ste 7, Needham, MA 02492
Based in Boston, 3 mi away
84/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 59 Bowker St, Boston, MA 02114
Based in Medford, 3 mi away
84/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 123 Google reviews, open 24/7.
- 5.0★ from 123 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 510 Riverside Ave, Medford, MA 02155
#5 RES Solar
Based in Cohasset, 19 mi away
83/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15 Marion Way, Cohasset, MA 02025
Based in Marlborough, 25 mi away
83/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 464 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 464 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun 9 AM–5 PM
- Address
- 11 Apex Dr #301b, Marlborough, MA 01752
Based in Saugus, 8 mi away
83/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 23 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun 10 AM–5 PM
- Address
- 999 Broadway #101, Saugus, MA 01906
#8 Sunrun Solar
Based in Billerica, 12 mi away
83/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.4★ from 276 Google reviews, listed on Google as “Solar energy company”.
- 4.4★ from 276 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 16 Progress Rd B4, Billerica, MA 01821
Based in Lexington, 6 mi away
82/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 468 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 468 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 3 Bow St Suite 3, Lexington, MA 02420
#10 EnergySage
Based in Boston, 3 mi away
82/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 1,027 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 1,027 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
- Address
- 3 Center Plz, Boston, MA 02108
Based in Stoughton, 16 mi away
82/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 139 Google reviews, open 24/7.
- 5.0★ from 139 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 191 Lowe Ave, Stoughton, MA 02072
#12 Everest Solar
Based in Woburn, 8 mi away
82/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 14 Google reviews
- Hours
- Mon–Thu 8 AM–7 PM · Fri 8 AM–5 PM · Sat 9 AM–5 PM · Sun 11 AM–2 PM
- Address
- 500 Unicorn Park Dr # 300, Woburn, MA 01801
#13 Nexis Power LLC
Based in Woburn, 9 mi away
82/100CR ScoreRanked #13 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–Sat 8 AM–6 PM · Sun closed
- Address
- 10 Tower Office Prk Suite 509, Woburn, MA 01801
#14 Sunrun Solar
Based in Taunton, 29 mi away
82/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.5★ from 476 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 476 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 695 Myles Standish Blvd Bldg 2 Lot 36, Taunton, MA 02780
Based in Danvers, 16 mi away
81/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 125 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
- Address
- 10 Elm St, Danvers, MA 01923
Based in Brookline, 9 mi away
81/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 12 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Tewksbury, 18 mi away
81/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 100 Google reviews, open 24/7.
- 5.0★ from 100 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 35 Hillman St #1, Tewksbury, MA 01876
Based in Boston, 3 mi away
81/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.5★ from 154 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 154 Google reviews
- Hours
- Mon–Tue 6 AM–7 PM · Wed 6 AM–7 AM · Thu–Fri 6 AM–7 PM · Sat 7 AM–4 PM · Sun closed
- Address
- 262 Washington St #700, Boston, MA 02108
Based in Boston, 2 mi away
81/100CR ScoreRanked #19 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
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 24 Spice St, Boston, MA 02129
Based in Danvers, 16 mi away
81/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 213 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 213 Google reviews
- Hours
- Mon–Sat 7 AM–5 PM · Sun closed
- Address
- 3 Electronics Ave Suite 102, Danvers, MA 01923
#21 Neeeco
Based in Wilmington, 15 mi away
81/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 3,580 Google reviews, the most Google reviews on this list (3,580).
- 4.9★ from 3,580 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 10 Upton Dr Suite 8, Wilmington, MA 01887
Based in Andover, 21 mi away
81/100CR ScoreRanked #22 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–Thu 8 AM–7 PM · Fri 8 AM–5 PM · Sat 8 AM–4:30 PM · Sun 9 AM–7 PM
- Address
- 300 Brickstone Square Suite 211, Andover, MA 01810
Based in Cumberland, 33 mi away
80/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 354 Google reviews, open 24/7.
- 4.9★ from 354 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 45 Industrial Rd Suite 207, Cumberland, RI 02864
#24 Boston Solar
Based in Woburn, 10 mi away
80/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 1,357 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 1,357 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 12 Gill St #5650, Woburn, MA 01801
Based in Everett, 4 mi away
80/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 23 Google reviews, open 24/7.
- 4.9★ from 23 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 126 Hancock St, Everett, MA 02149
How much do solar installers cost in Cambridge?
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 Cambridge solar installers
We scored 175 Cambridge 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 Cambridge 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 Cambridge: frequently asked questions
Who is the best solar installer in Cambridge?
By CR Score, the highest-ranked solar installer in Cambridge, MA is Team Sunshine Construction, LLC. with a CR Score of 90/100. It has 4.7★ from 181 Google reviews. It is open 24/7. NEC Electric & Solar (#2) and Kind Heart Solar Solutions (#3) follow. We ranked 175 solar installers on 8 factors, last updated October 22, 2026.
Which solar installers in Cambridge are open 24/7?
19 ranked solar installers in Cambridge post 24/7 hours. The highest-ranked are Team Sunshine Construction, LLC. (#1), NEC Electric & Solar (#2) and Kind Heart Solar Solutions (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Cambridge work on weekends?
104 of 175 ranked solar installers post Saturday hours and 45 post Sunday hours. The highest-ranked open Saturdays are Team Sunshine Construction, LLC. (#1), NEC Electric & Solar (#2) and Kind Heart Solar Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Cambridge?
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 Cambridge solar installers have?
The median Google rating among 175 rated solar installers in Cambridge is 4.9★, with a median of 19 reviews. Neeeco has the most, 3,580 reviews, and ranks #21. 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 Cambridge count in this ranking?
Yes, if they are within 40 mi of the Cambridge 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.
Can solar installers pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Cambridge
- October 2026: CR Scores recalculated for 175 solar installers serving Cambridge.
- October 2026: 2 duplicate listings merged.
More solar installers and Cambridge pages
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