147 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lansdowne: Lumina Solar, CR Score 62/100; 4.9★ from 763 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Maryland Community Solar, posts 24/7 hours; ranked #2 of 147.
Most-reviewed: American Home Contractors, 3,700 Google reviews at 4.9★, the most of 147 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
147 Lansdowne solar installers are ranked here by CR Score, from ten published factors. 17 are open 24/7, 85 open Saturdays and 37 open Sundays, based on posted hours. The median Google rating is 4.9★ across 147 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Lumina Solar | 62 | 4.9★ (763) | Baltimore, 1 mi away | Sat | Overall |
| 2 | Maryland Community Solar | 61 | 5.0★ (95) | Columbia, 12 mi away | 24/7 | Emergencies |
| 3 | PanelesSolaresenUSA.com | 61 | 5.0★ (153) | Elkridge, 8 mi away | Sat · Sun | — |
| 4 | American Home Contractors | 60 | 4.9★ (3,700) | Washington, D.C., 15 mi away | 24/7 | Most reviews |
| 5 | Solar-Verse | 60 | 5.0★ (271) | Washington, D.C., 11 mi away | Sat · Evenings | — |
| 6 | 410 Energy Solutions | 59 | 4.9★ (86) | Arbutus, 1 mi away | Sat · Evenings | — |
| 7 | Cosmo Solaris | 58 | 4.5★ (27) | Baltimore, 6 mi away | 24/7 | — |
| 8 | Solar Energy World | 58 | 4.6★ (839) | Laurel, 17 mi away | Sat | — |
| 9 | Uprise Solar and Roofing | 58 | 5.0★ (65) | Washington, D.C., 27 mi away | 24/7 | — |
| 10 | Revolution Solar | 58 | 4.9★ (71) | Ashton-Sandy Spring, 7 mi away | Sat · 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 763 Google reviews, listed on Google as “Solar energy company”.
Based in Columbia, 12 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 95 Google reviews, listed on Google as “Solar energy system service”.
Based in Elkridge, 8 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 15 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 3,700 Google reviews, the most in Lansdowne.
Based in Washington, D.C., 11 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Solar energy company”.
Based in Arbutus, 1 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Solar energy company”.
Based in Baltimore, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.5★ from 27 Google reviews, listed on Google as “Solar energy company”.
Based in Laurel, 17 mi away
Ranked #8 because of its Google rating and trade focus: 4.6★ from 839 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 27 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Solar energy company”.
Based in Ashton-Sandy Spring, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Solar energy company”.
Based in Eldersburg, 21 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 184 Google reviews, listed on Google as “Solar energy company”.
Based in Beltsville, 18 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 231 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 30 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 530 Google reviews, listed on Google as “Solar energy company”.
Based in Laurel, 14 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based in Arbutus, 1 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in Baltimore, 4 mi away
Ranked #16 because of its Google rating and trade focus: 3.9★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based in Columbia, 12 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 9 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 31 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Solar energy company”.
Based in Columbia, 12 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 30 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Solar energy company”.
Based in Timonium, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 342 Google reviews, listed on Google as “Solar energy company”.
Based in Baltimore, 16 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy system service”.
Based in Beltsville, 18 mi away
Ranked #23 because of its Google rating and trade focus: 4.0★ from 495 Google reviews, listed on Google as “Solar energy company”.
Based in Towson, 11 mi away
Ranked #24 because of its Google rating and review volume: 5.0★ from 140 Google reviews.
Based in Annapolis, 20 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
#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 147 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | The Solar Brokers of Maryland | 55 | 5.0★ (54) | 20 mi |
| 27 | Solar Jedi Empire | 55 | 5.0★ (8) | 2 mi |
| 28 | Maryland State Solar | 55 | 4.9★ (37) | 15 mi |
| 29 | Advanced Solar | 55 | 4.8★ (411) | 26 mi |
| 30 | Solar SME, INC. | 55 | 4.5★ (121) | 18 mi |
| 31 | Solar Solution DC | 55 | 4.8★ (510) | 29 mi |
| 32 | Kane Solar, LLC | 55 | 5.0★ (22) | 24 mi |
| 33 | Sustainable You LLC | 55 | 4.9★ (108) | 30 mi |
| 34 | Uprise Solar | 55 | 5.0★ (78) | 30 mi |
| 35 | Shanco Roofing | 54 | 4.9★ (401) | 27 mi |
| 36 | Solar Panels | 54 | 4.3★ (6) | 11 mi |
| 37 | ROI Construction | 54 | 4.9★ (311) | 15 mi |
| 38 | Solar Sclera | 54 | 5.0★ (16) | 24 mi |
| 39 | Key Solar Solutions | 54 | 4.9★ (109) | 36 mi |
| 40 | American Sentry Solar | 54 | 4.6★ (434) | 25 mi |
| 41 | Solar Energy Services, Inc. | 54 | 4.6★ (77) | 12 mi |
| 42 | PWR Energy Solar | 54 | 5.0★ (12) | 13 mi |
| 43 | Know About Solar | 54 | 4.9★ (20) | 16 mi |
| 44 | District Energy LLC | 54 | 5.0★ (55) | 31 mi |
| 45 | Direct Energy Solar | 54 | 3.6★ (12) | 12 mi |
| 46 | Trinity Solar | 53 | 3.7★ (137) | 6 mi |
| 47 | RAW Power Washing | 53 | 5.0★ (96) | 20 mi |
| 48 | Prestige Restorations | 53 | 4.9★ (139) | 22 mi |
| 49 | SunRayzor | 53 | 4.8★ (12) | 25 mi |
| 50 | Glim Solar LLC | 53 | 4.8★ (58) | 30 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 |
|---|---|---|
| 410 New Roof | 5.0★ (2) | 32 mi |
| Ameresco | 1.0★ (1) | 9 mi |
| Ameresco Solar | 5.0★ (1) | 17 mi |
| American Electric Solar, LLC | 1.0★ (2) | 37 mi |
| Baltimore’s Best Energy | 5.0★ (1) | 7 mi |
| Capital Solar Group | 5.0★ (1) | 6 mi |
| Dc Solar Repair | 5.0★ (1) | 25 mi |
| EDF Renewables | 5.0★ (1) | 9 mi |
| GreenBrilliance | 5.0★ (1) | 15 mi |
| New Columbia Solar | 5.0★ (2) | 29 mi |
| Power-On | 5.0★ (2) | 22 mi |
| Revolution Solar at Capitol Heights | 5.0★ (2) | 28 mi |
| RIFE International, LLC | 5.0★ (1) | 30 mi |
| Save With Solar | 5.0★ (1) | 28 mi |
| Sol contracting llc | 5.0★ (2) | 10 mi |
| Solaria Solar | 5.0★ (2) | 34 mi |
| Solaris Solar Solutions | 5.0★ (1) | 11 mi |
| SunSavers Energy, LLC | 5.0★ (1) | 30 mi |
| Washingtonfreesolae | 3.0★ (2) | 31 mi |
| Wisconsin Solar Power | 3.0★ (2) | 31 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 147 Lansdowne 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 Lansdowne 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 |