108 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Downingtown: JK Mechanical, CR Score 85/100; 4.9★ from 1,332 Google reviews; open 24/7.
Best for emergencies (open 24/7): Zimmerman's Roofing, posts 24/7 hours; ranked #2 of 108.
Most-reviewed: EMT Solar and Roofing, 1,289 Google reviews at 4.9★, the most of 108 ranked after JK Mechanical; ranked #19.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
108 Downingtown solar installers are ranked here by CR Score, from 8 published factors. 14 are open 24/7, 58 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.9★ across 108 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | JK Mechanical | 85 | 4.9★ (1,332) | Willow Street, 31 mi away | 24/7 | Overall |
| 2 | Zimmerman's Roofing | 84 | 4.9★ (556) | New Holland, 22 mi away | 24/7 | Emergencies |
| 3 | SunLife Solar | 84 | 4.8★ (123) | Wilmington, 20 mi away | Sat · Sun · Evenings | — |
| 4 | G. Fedale Roofing and Siding | 84 | 4.8★ (718) | New Castle, 21 mi away | 24/7 | — |
| 5 | Surf & Turf Roofing, Solar and Windows | 84 | 4.9★ (272) | Bellmawr, 34 mi away | 24/7 | — |
| 6 | Zenergy Solar | 83 | 5.0★ (61) | Wilmington, 20 mi away | 24/7 | — |
| 7 | Iddings Electric Inc | 83 | 4.9★ (276) | New Holland, 22 mi away | 24/7 | — |
| 8 | PosiGen Home Solar | 83 | 4.8★ (472) | Plymouth Meeting, 23 mi away | Sun | — |
| 9 | Finray Solar | 83 | 4.9★ (601) | Ardmore, 25 mi away | Sat | — |
| 10 | Integrated Home Energy | 83 | 4.9★ (92) | West Chester, 6 mi away | Sat | — |
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.
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,332 Google reviews, the most Google reviews on this list (1,332).
Based in New Holland, 22 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 556 Google reviews, open 24/7.
Based in Wilmington, 20 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 123 Google reviews, listed on Google as “Solar energy company”.
Based in New Castle, 21 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 718 Google reviews, open 24/7.
Based in Bellmawr, 34 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 272 Google reviews, open 24/7.
Based in Wilmington, 20 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 61 Google reviews, open 24/7.
Based in New Holland, 22 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 276 Google reviews, open 24/7.
Based in Plymouth Meeting, 23 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 472 Google reviews, listed on Google as “Solar energy company”.
Based in Ardmore, 25 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 601 Google reviews, listed on Google as “Solar energy company”.
Based in West Chester, 6 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “Solar energy company”.
Based in Cinnaminson, 37 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Solar energy system service”.
Based in Ashland, 38 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
Based in Blue Bell, 29 mi away
Ranked #13 because of its Google rating and availability: 4.8★ from 214 Google reviews, open 24/7.
Based in Collegeville, 19 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy system service”.
Based in Pennsauken, 35 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 485 Google reviews, listed on Google as “Solar energy company”.
Based in Pottstown, 19 mi away
Ranked #16 because of its Google rating and review volume: 5.0★ from 954 Google reviews, 954 Google reviews.
Based in Bellmawr, 38 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based in Newark, 26 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based in Camden, 36 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,289 Google reviews, listed on Google as “Solar energy company”.
Based in Camden, 38 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based in King of Prussia, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in Horsham, 35 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 126 Google reviews, listed on Google as “Solar energy company”.
Based in Runnemede, 35 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “Solar energy company”.
Based in Mount Joy, 38 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy system service”.
Based in Newark, 23 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 25 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 108 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Paradise Energy Solutions | 78 | 5.0★ (162) | 23 mi |
| 27 | Desol LLC | 78 | 2.6★ (5) | 25 mi |
| 28 | KW Solar Solutions, Inc | 78 | 4.9★ (36) | 26 mi |
| 29 | Dirosato Plumbing and Heating | 78 | 4.5★ (63) | 22 mi |
| 30 | EcoGen America | 78 | 4.9★ (16) | 20 mi |
| 31 | Bright State Energy | 77 | 5.0★ (13) | 40 mi |
| 32 | Warner Exteriors & Solar | 77 | 4.9★ (435) | 35 mi |
| 33 | Kaitanna Solar Installation Company | 76 | 4.9★ (37) | 34 mi |
| 34 | RGB construction | 76 | 4.8★ (126) | 30 mi |
| 35 | Butterfly PBC | 76 | 5.0★ (16) | 27 mi |
| 36 | Impact Solar LLC | 76 | 5.0★ (129) | 35 mi |
| 37 | Nu Look Roofing, Siding, and Windows | 75 | 4.9★ (102) | 15 mi |
| 38 | LGCY POWER | 75 | 4.7★ (3) | 36 mi |
| 39 | CMI ELECTRIC, INC. | 75 | 4.4★ (11) | 25 mi |
| 40 | Solar Garden USA | 75 | 3.9★ (11) | 40 mi |
| 41 | All Work Services and Construction | 75 | 4.9★ (77) | 33 mi |
| 42 | Solar Techs | 75 | 4.4★ (8) | 26 mi |
| 43 | PROJECT ELITE LLC | 75 | 5.0★ (7) | 26 mi |
| 44 | MACK Solar and Roofing | 75 | 5.0★ (119) | 35 mi |
| 45 | Sunwise Energy | 75 | 4.7★ (315) | 36 mi |
| 46 | pjm eis | 75 | 2.0★ (8) | 17 mi |
| 47 | Pennstar Solar LLC | 75 | 5.0★ (24) | 24 mi |
| 48 | Gensun Roofing and Solar | 75 | 4.8★ (18) | 34 mi |
| 49 | Imperium Solar | 75 | 4.7★ (13) | 31 mi |
| 50 | Open Sky Energy | 75 | 5.0★ (35) | 20 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 |
|---|---|---|
| Barun Corp | 5.0★ (2) | 28 mi |
| Chaparral Business Solutions LLC | 5.0★ (1) | 23 mi |
| Ct Solar Leasing Llc | 5.0★ (1) | 24 mi |
| EnLight.Energy | 4.5★ (2) | 27 mi |
| Four Leaf Energy, Inc. | 1.0★ (1) | 5 mi |
| J and N Energy Enterprises | 1.0★ (1) | 23 mi |
| KC Green Energy | 3.0★ (2) | 36 mi |
| Keares Electrical Contracting Inc | 3.9★ (9) | In Downingtown |
| Lumina Solar Delaware | 5.0★ (1) | 22 mi |
| Montco Solar | 5.0★ (2) | 23 mi |
| MYSOLAR USA | 5.0★ (1) | 20 mi |
| PA Green Solar | 5.0★ (1) | 30 mi |
| Sawmills Solar | 5.0★ (1) | 28 mi |
| Solar Reflections, Inc. | 5.0★ (1) | 33 mi |
| Solar Way Energy | 5.0★ (1) | 30 mi |
| SolareAmerica | 5.0★ (1) | 23 mi |
| SolarLink SolarPanels | 5.0★ (2) | 30 mi |
| Summit Energy | 1.0★ (1) | 17 mi |
| Sun-In-One | 5.0★ (2) | 20 mi |
| Tomlin Green Solutions LLC | 5.0★ (2) | 22 mi |
Typical prices in USD, adjusted for Pennsylvania with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $33,090 | $37,430 | $40,720 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.20 Middle Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 108 Downingtown 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 Downingtown 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 |