159 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waldorf: Revolution Solar, CR Score 59/100; 4.9★ from 530 Google reviews; open Saturdays until 8 PM.
Best for emergencies (open 24/7): EDGE Energy, posts 24/7 hours; ranked #2 of 159.
Most-reviewed: American Home Contractors, 3,700 Google reviews at 4.9★, the most of 159 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
159 Waldorf solar installers are ranked here by CR Score, from ten published factors. 26 are open 24/7, 96 open Saturdays and 46 open Sundays, based on posted hours. The median Google rating is 4.9★ across 159 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Revolution Solar | 59 | 4.9★ (530) | Washington, D.C., 21 mi away | Sat · Evenings | Overall |
| 2 | EDGE Energy | 58 | 4.8★ (56) | Washington, D.C., 18 mi away | 24/7 | Emergencies |
| 3 | Uprise Solar and Roofing | 58 | 5.0★ (65) | Washington, D.C., 24 mi away | 24/7 | — |
| 4 | City Renewables | 58 | 4.9★ (94) | Washington, D.C., 20 mi away | Sat · Sun · Evenings | — |
| 5 | EDGE Energy | 57 | 4.9★ (87) | Reston, 32 mi away | 24/7 | — |
| 6 | Maryland Community Solar | 57 | 5.0★ (95) | Columbia, 38 mi away | 24/7 | — |
| 7 | GreenBrilliance | 56 | 4.4★ (371) | Herndon, 34 mi away | 24/7 | — |
| 8 | American Home Contractors | 56 | 4.9★ (3,700) | Washington, D.C., 36 mi away | 24/7 | Most reviews |
| 9 | Solar Geeks LLC | 56 | 4.7★ (20) | Waldorf | Sat · Evenings | — |
| 10 | American Home Contractors | 56 | 4.9★ (2,385) | Chantilly, 33 mi away | 24/7 | — |
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 530 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 18 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 24 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 20 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Solar energy company”.
Based in Reston, 32 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 87 Google reviews, listed on Google as “Solar energy company”.
Based in Columbia, 38 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 95 Google reviews, listed on Google as “Solar energy system service”.
Based in Herndon, 34 mi away
Ranked #7 because of its Google rating and trade focus: 4.4★ from 371 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 36 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 3,700 Google reviews, the most in Waldorf.
Based in Waldorf
Ranked #9 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Solar energy company”.
Based in Chantilly, 33 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 2,385 Google reviews.
Based in Mount Vernon, 12 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 20 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 20 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 108 Google reviews, listed on Google as “Solar energy company”.
Based in Annandale, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
Based in Elkridge, 39 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “Solar energy company”.
Based in Greater Upper Marlboro, 21 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 411 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 23 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 510 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 36 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Solar energy company”.
Based in Laurel, 33 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 839 Google reviews, listed on Google as “Solar energy company”.
Based in Beltsville, 30 mi away
Ranked #20 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., 19 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Solar energy company”.
Based in Oxon Hill, 12 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based in Goddard, 22 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Solar energy company”.
Based in Washington, D.C., 13 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Solar energy company”.
Based in Falls Church, 21 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 133 Google reviews, listed on Google as “Solar energy company”.
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 159 Waldorf 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 Waldorf 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 |