100 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Frederick: Maryland Community Solar, CR Score 85/100; 5.0★ from 95 Google reviews; open 24/7.
Best for emergencies (open 24/7): EDGE Energy, posts 24/7 hours; ranked #2 of 100.
Most-reviewed: American Home Contractors, 3,700 Google reviews at 4.9★, the most of 100 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
100 Frederick solar installers are ranked here by CR Score, from 8 published factors. 19 are open 24/7, 63 open Saturdays and 31 open Sundays, based on posted hours. The median Google rating is 4.9★ across 100 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Maryland Community Solar | 85 | 5.0★ (95) | Columbia, 34 mi away | 24/7 | Overall |
| 2 | EDGE Energy | 85 | 4.9★ (87) | Reston, 32 mi away | 24/7 | Emergencies |
| 3 | American Home Contractors | 84 | 4.9★ (3,700) | Washington, D.C., 32 mi away | 24/7 | Most reviews |
| 4 | Key Solar Solutions | 84 | 4.9★ (109) | Spring Ridge, 16 mi away | — | — |
| 5 | Uprise Solar and Roofing | 84 | 5.0★ (65) | Washington, D.C., 38 mi away | 24/7 | — |
| 6 | GreenBrilliance | 83 | 4.4★ (371) | Herndon, 32 mi away | 24/7 | — |
| 7 | American Home Contractors | 83 | 4.9★ (2,385) | Chantilly, 36 mi away | 24/7 | — |
| 8 | AC Matthews, Roofing & Exteriors | 83 | 5.0★ (46) | Frederick | 24/7 | — |
| 9 | Shanco Roofing | 82 | 4.9★ (401) | Gaithersburg, 22 mi away | 24/7 | — |
| 10 | PanelesSolaresenUSA.com | 82 | 5.0★ (153) | Elkridge, 38 mi away | Sat · Sun | — |
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 availability: 5.0★ from 95 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Reston, 32 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Washington, D.C., 32 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 3,700 Google reviews, the most Google reviews on this list (3,700).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Spring Ridge, 16 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 109 Google reviews, listed on Google as “Solar energy system service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Washington, D.C., 38 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Herndon, 32 mi away
Ranked #6 because of its Google rating and availability: 4.4★ from 371 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chantilly, 36 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 2,385 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick
Ranked #8 because of its Google rating and availability: 5.0★ from 46 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 22 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 401 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elkridge, 38 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rockville, 24 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eldersburg, 23 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 184 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Thurmont, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 27 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 32 mi away
Ranked #14 because of its Google rating and availability: 4.8★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 37 mi away
Ranked #15 because of its Google rating and availability: 4.5★ from 27 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick
Ranked #16 because of its Google rating and availability: 3.7★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Washington, D.C., 40 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 530 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 31 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chantilly, 37 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 40 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 21 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 58 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beltsville, 37 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 231 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Laurel, 35 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 839 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Laurel, 37 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick
Ranked #24 because of its Google rating and trade focus: 4.9★ from 37 Google reviews, listed on Google as “Roofing contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Washington, D.C., 40 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 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 100 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Solar Solutions For All LLC | 77 | 4.3★ (11) | 22 mi |
| 27 | Eastern Exteriors, LLC | 77 | 5.0★ (89) | In Frederick |
| 28 | Sky NRG Solar Inc. | 77 | 4.9★ (66) | 32 mi |
| 29 | ROI Construction | 76 | 4.9★ (311) | 35 mi |
| 30 | Greenway home improvements | 76 | 5.0★ (264) | 39 mi |
| 31 | Solar Panels | 76 | 4.3★ (6) | 33 mi |
| 32 | Sunrun Solar | 76 | 4.0★ (495) | 37 mi |
| 33 | Gotsolar4you | 76 | 4.9★ (9) | 34 mi |
| 34 | Washington Solar | 76 | 4.6★ (5) | 36 mi |
| 35 | Circa Energy | 76 | 5.0★ (6) | 40 mi |
| 36 | Klekner Solar Energy Solutions | 75 | 5.0★ (39) | 37 mi |
| 37 | Climate Control Inc | 75 | 4.8★ (40) | 39 mi |
| 38 | Falcon Roofing & Solar | 75 | 4.9★ (278) | 38 mi |
| 39 | JC Solar, LLC | 75 | 4.3★ (22) | 25 mi |
| 40 | ElevationBuild | 75 | 4.9★ (99) | 33 mi |
| 41 | Solar Solution DC | 75 | 4.8★ (510) | 38 mi |
| 42 | Aduu Solar | 75 | 4.7★ (24) | 35 mi |
| 43 | SolarPanel RoofNSave Gettysburg | 75 | 5.0★ (3) | 30 mi |
| 44 | Nationwide Energy Solutions | 74 | 5.0★ (6) | In Frederick |
| 45 | Maryland State Solar | 74 | 4.9★ (37) | 37 mi |
| 46 | Allstate Roofing & More LLC | 74 | 5.0★ (9) | 33 mi |
| 47 | American Solar Enterprises LLC | 74 | 4.9★ (63) | 27 mi |
| 48 | Got Electric, LLC | 74 | 4.9★ (563) | 9 mi |
| 49 | Direct Energy Solar | 74 | 3.6★ (12) | 33 mi |
| 50 | RAF SOLAR POWER LLC. | 73 | 5.0★ (18) | 21 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 |
|---|---|---|
| Ameresco | 1.0★ (1) | 35 mi |
| American Electric Solar, LLC | 1.0★ (2) | 39 mi |
| Atlas Home Energy Solutions | 4.9★ (858) | In Frederick |
| EDF Renewables | 5.0★ (1) | 36 mi |
| Fesco Energy | In Frederick | |
| GreenBrilliance | 5.0★ (1) | 33 mi |
| Lightility | 5.0★ (1) | 24 mi |
| Long Electric LLC | 4.8★ (45) | In Frederick |
| Lumen Brothers Electric Company | 5.0★ (88) | In Frederick |
| McClure Company | 2.0★ (1) | 26 mi |
| Phoenix | 5.0★ (20) | In Frederick |
| Provident Electric | 5.0★ (495) | In Frederick |
| Provident Electric | 4.8★ (72) | In Frederick |
| Raynora Solar | 5.0★ (1) | 31 mi |
| RIFE International, LLC | 5.0★ (1) | 34 mi |
| RNR Energy Solutions | 5.0★ (2) | 23 mi |
| Shumaker Roofing Company | 4.9★ (326) | In Frederick |
| Simply Remodel Group | 5.0★ (1) | 35 mi |
| Smiling Sun Solar | 5.0★ (1) | 35 mi |
| SONERGY USA | In Frederick |
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 100 Frederick 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 Frederick 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 |