88/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.
- 5.0★ from 65 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 31 Sheridan St NW, Washington, DC 20011
Best Solar Installers in Rockville, MD (2026)
200 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rockville: Uprise Solar and Roofing, CR Score 88/100; 5.0★ from 65 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Maryland Community Solar, posts 24/7 hours; ranked #2 of 200.
- 3
Most-reviewed: American Home Contractors, 3,700 Google reviews at 4.9★, the most of 200 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
200 Rockville solar installers are ranked here by CR Score, from 8 published factors. 32 are open 24/7, 116 open Saturdays and 59 open Sundays, based on posted hours. The median Google rating is 4.9★ across 200 rated businesses.
Most of this list also appears on the Solar installers in Germantown ranking. See Solar installers in Germantown
Top 10 solar installers in Rockville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Uprise Solar and Roofing | 88 | 5.0★ (65) | Washington, D.C., 11 mi away | 24/7 | Overall |
| 2 | Maryland Community Solar | 88 | 5.0★ (95) | Columbia, 17 mi away | 24/7 | Emergencies |
| 3 | American Home Contractors | 87 | 4.9★ (3,700) | Washington, D.C., 14 mi away | 24/7 | Most reviews |
| 4 | EDGE Energy | 87 | 4.9★ (87) | Reston, 15 mi away | 24/7 | — |
| 5 | EDGE Energy | 86 | 4.8★ (56) | Washington, D.C., 16 mi away | 24/7 | — |
| 6 | GreenBrilliance | 86 | 4.4★ (371) | Herndon, 17 mi away | 24/7 | — |
| 7 | American Home Contractors | 86 | 4.9★ (2,385) | Chantilly, 20 mi away | 24/7 | — |
| 8 | Shanco Roofing | 85 | 4.9★ (401) | Gaithersburg, 6 mi away | 24/7 | — |
| 9 | Sun Energy Consultants | 85 | 5.0★ (5) | Rockville | 24/7 | — |
| 10 | PanelesSolaresenUSA.com | 85 | 5.0★ (153) | Elkridge, 21 mi away | Sat · Sun | — |
The 200 best solar installers in Rockville, 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 Columbia, 17 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 95 Google reviews, open 24/7.
- 5.0★ from 95 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10015 Old Columbia Rd, Columbia, MD 21046
Based in Washington, D.C., 14 mi away
87/100CR ScoreRanked #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).
- 4.9★ from 3,700 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11820 W Market Pl Ste f, Fulton, MD 20759
#4 EDGE Energy
Based in Reston, 15 mi away
87/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
- 4.9★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12020 Sunrise Valley Dr #100, Reston, VA 20191
#5 EDGE Energy
Based in Washington, D.C., 16 mi away
86/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 56 Google reviews, open 24/7.
- 4.8★ from 56 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 100 M St SE #600, Washington, DC 20003
Based in Herndon, 17 mi away
86/100CR ScoreRanked #6 because of its Google rating and availability: 4.4★ from 371 Google reviews, open 24/7.
- 4.4★ from 371 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13655 Dulles Technology Dr Suite 130, Herndon, VA 20171
Based in Chantilly, 20 mi away
86/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 2,385 Google reviews, open 24/7.
- 4.9★ from 2,385 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14155 Sullyfield Cir Suite A, Chantilly, VA 20151
Based in Gaithersburg, 6 mi away
85/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 401 Google reviews, open 24/7.
- 4.9★ from 401 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7404 Lindbergh Dr suite g, Gaithersburg, MD 20879
Based in Rockville
85/100CR ScoreRanked #9 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
- 9806 Gable Ridge Terrace Apt I, Rockville, MD 20850
Based in Elkridge, 21 mi away
85/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 153 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun 8 AM–4 PM
- Address
- 7530 Washington Blvd Suite G, Elkridge, MD 21075
#11 City Renewables
Based in Washington, D.C., 15 mi away
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 94 Google reviews
- Hours
- Mon–Sat 8 AM–7 PM · Sun 8 AM–8 PM
- Address
- 1255 Union St NE 7th Floor, Washington, DC 20002
#12 Revolution Solar
Based in Washington, D.C., 13 mi away
84/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 530 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 530 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun closed
- Address
- 1328 Florida Ave NW, Washington, DC 20009
#13 EcoGen America
Based in Columbia, 18 mi away
83/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 9 Google reviews, open 24/7.
- 4.8★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10630 Little Patuxent Pkwy Ste. 214, Columbia, MD 21044
Based in Manassas, 31 mi away
82/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 730 Google reviews, open 24/7.
- 4.9★ from 730 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12001 Wilton Meadows Ct, Manassas, VA 20109
#15 EDGE Energy
Based in Beltsville, 14 mi away
82/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 231 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 231 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6854 Distribution Dr, Beltsville, MD 20705
#16 Cosmo Solaris
Based in Baltimore, 28 mi away
82/100CR ScoreRanked #16 because of its Google rating and availability: 4.5★ from 27 Google reviews, open 24/7.
- 4.5★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6340 Security Blvd, Baltimore, MD 21207
#17 Lumina Solar
Based in Baltimore, 28 mi away
82/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 763 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 763 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 3600 Commerce Dr Suite 601, Baltimore, MD 21227
Based in Laurel, 14 mi away
82/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.6★ from 839 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 839 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 10 AM–3 PM · Sun closed
- Address
- 14880 Sweitzer Ln suite a, Laurel, MD 20707
#19 Solar Sclera
Based in Washington, D.C., 14 mi away
81/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Solar energy system service”.
- 5.0★ from 16 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 6500 Queens Chapel Rd, University Park, MD 20782
#20 Kane Solar, LLC
Based in Goddard, 19 mi away
81/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 22 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 8500 Ardwick Ardmore Rd, North Englewood, MD 20785
#21 Uprise Solar
Based in Washington, D.C., 15 mi away
81/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 78 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 9 AM–11:30 AM · Sun closed
- Address
- 1140 3rd St NE, Washington, DC 20002
#22 EcoSun Wash
Based in Columbia, 17 mi away
81/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Sat 7 AM–9 PM · Sun 9 AM–5 PM
- Address
- 5511 Woodenhawk Cir, Columbia, MD 21044
Based in Eldersburg, 25 mi away
81/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 184 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 184 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 5975 Exchange Dr Suite A-B, Eldersburg, MD 21784
Based in Washington, D.C., 15 mi away
81/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 108 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 108 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 1255 Union St NE 7th Floor, Office #8, Washington, DC 20002
#25 Solar-Verse
Based in Washington, D.C., 28 mi away
81/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 271 Google reviews
- Hours
- Mon–Fri 10 AM–7 PM · Sat 10 AM–6 PM · Sun closed
- Address
- 313 Najoles Rd Ste P, Millersville, MD 21108
How much do solar installers cost in Rockville?
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 |
How we ranked Rockville solar installers
We scored 200 Rockville 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 Rockville 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 Rockville: frequently asked questions
Who is the best solar installer in Rockville?
By CR Score, the highest-ranked solar installer in Rockville, MD is Uprise Solar and Roofing with a CR Score of 88/100. It has 5.0★ from 65 Google reviews. It is open 24/7. Maryland Community Solar (#2) and American Home Contractors (#3) follow. We ranked 200 solar installers on 8 factors, last updated October 22, 2026.
How many solar installers are there in Rockville?
ContractorsRanked ranks 200 solar installers serving Rockville, MD. 1 of them is based in Rockville; the rest serve it from nearby towns. Counts are as of October 2026.
Which solar installers in Rockville are open 24/7?
32 ranked solar installers in Rockville post 24/7 hours. The highest-ranked are Uprise Solar and Roofing (#1), Maryland Community Solar (#2) and American Home Contractors (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Rockville work on weekends?
116 of 200 ranked solar installers post Saturday hours and 59 post Sunday hours. The highest-ranked open Saturdays are Uprise Solar and Roofing (#1), Maryland Community Solar (#2) and American Home Contractors (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Rockville?
Solar panel installation typically costs $27,400 to $33,710, with $30,990 typical (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)). The range is adjusted for Maryland. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rockville solar installers have?
The median Google rating among 200 rated solar installers in Rockville is 4.9★, with a median of 24 reviews. American Home Contractors has the most, 3,700 reviews, and ranks #3. 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 Rockville count in this ranking?
Yes, if they are within 40 mi of the Rockville 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.
Update log for Rockville
- October 2026: CR Scores recalculated for 200 solar installers serving Rockville.
- October 2026: 1 duplicate listing merged.
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