16 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cambridge: MARASUN, CR Score 88/100; 5.0★ from 146 Google reviews; open 24/7.
Best for emergencies (open 24/7): Prestige Restorations, posts 24/7 hours; ranked #2 of 16.
Most-reviewed: Prestige Restorations, 139 Google reviews at 4.9★, the most of 16 ranked after MARASUN; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
16 Cambridge solar installers are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 7 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 16 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | MARASUN | 88 | 5.0★ (146) | Easton, 17 mi away | 24/7 | Overall |
| 2 | Prestige Restorations | 84 | 4.9★ (139) | Edgewater, 36 mi away | 24/7 | Emergencies, Most reviews |
| 3 | G. Fedale Roofing and Siding | 82 | 4.9★ (100) | Georgetown, 39 mi away | 24/7 | — |
| 4 | Circa Energy | 82 | 5.0★ (23) | Annapolis, 37 mi away | Sat · Sun · Evenings | — |
| 5 | Paradise Energy Solutions | 80 | 5.0★ (93) | Salisbury, 30 mi away | — | — |
| 6 | Energy Select | 79 | 4.8★ (134) | California, 35 mi away | — | — |
| 7 | HASI | 76 | 5.0★ (3) | Annapolis, 37 mi away | — | — |
| 8 | Bee Happy Solar | 74 | 5.0★ (4) | Annapolis, 37 mi away | Sat · Evenings | — |
| 9 | Skywave Solar | 72 | 4.5★ (15) | California, 37 mi away | — | — |
| 10 | Grounded Solar | 71 | 4.8★ (6) | California, 30 mi away | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 5.0★ from 146 Google reviews, the most Google reviews on this list (146).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Edgewater, 36 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 139 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Georgetown, 39 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 100 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 37 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Salisbury, 30 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in California, 35 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 134 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 37 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Annapolis, 37 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in California, 37 mi away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in California, 30 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Seaford, 26 mi away
Ranked #11 because of its Google rating and availability: 3.0★ from 4 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 38 mi away
Ranked #12 because of its Google rating and review volume: 4.4★ from 46 Google reviews, 46 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 36 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 35 Google reviews, 35 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 38 mi away
Ranked #14 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fruitland, 30 mi away
Ranked #15 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Solar energy equipment supplier”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Salisbury, 33 mi away
Ranked #16 because of its Google rating and review volume: 4.2★ from 21 Google reviews, 21 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
14 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 |
|---|---|---|
| Aero Energy | 4.9★ (185) | In Cambridge |
| Alpha Energy | 5.0★ (1) | 35 mi |
| AROCON Roofing & Construction | 4.9★ (161) | In Cambridge |
| Complete Systems | 3.0★ (2) | 29 mi |
| Consult With D2 | 25 mi | |
| Electrical Solutions | 36 mi | |
| Green Street Solar | 12 mi | |
| GreenBrilliance - Thomas Berry | 37 mi | |
| Home Energy Solutions, LLC | 5.0★ (1) | 31 mi |
| MRB Solutions | 32 mi | |
| Peak Efficiency Solar Panel Cleaning | 31 mi | |
| SMECO Solar | 5.0★ (2) | 39 mi |
| Solar Direct Maryland | 37 mi | |
| SRC Construction and Solar | 5.0★ (1) | 30 mi |
Typical prices in USD, adjusted for Maryland with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $27,400 | $30,990 | $33,710 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.00 South Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 16 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 |