441 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sunnyslope: Affordable Solar Cleaning Pros, CR Score 65/100; 5.0★ from 628 Google reviews; open 24/7.
Best for emergencies (open 24/7): Solar Express Cleaning, posts 24/7 hours; ranked #2 of 441.
Most-reviewed: Guyou Roofing and Solar, 1,365 Google reviews at 4.9★, the most of 441 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
441 Sunnyslope solar installers are ranked here by CR Score, from ten published factors. 43 are open 24/7, 245 open Saturdays and 131 open Sundays, based on posted hours. The median Google rating is 4.9★ across 441 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Affordable Solar Cleaning Pros | 65 | 5.0★ (628) | Loma Linda, 12 mi away | 24/7 | Overall |
| 2 | Solar Express Cleaning | 65 | 5.0★ (308) | Chino Hills, 5 mi away | 24/7 | Emergencies |
| 3 | EnergyAid | 64 | 4.8★ (534) | San Bernardino, 9 mi away | 24/7 | — |
| 4 | SoCal Solar Panel Cleaning Company | 61 | 5.0★ (246) | La Verne, 20 mi away | Sat · Sun · Evenings | — |
| 5 | EnergyAid | 60 | 4.7★ (1,353) | Santa Ana, 31 mi away | 24/7 | — |
| 6 | Pacific Solar Care & Window Cleaning | 60 | 5.0★ (310) | Eastvale, 14 mi away | Sat | — |
| 7 | FlowState Solar Cleaning | 59 | 5.0★ (91) | Good Hope, 16 mi away | Sat · Sun · Evenings | — |
| 8 | CL Window Shine - Pressure Washing, & Solar Installation | 59 | 4.9★ (322) | Anaheim, 20 mi away | 24/7 | — |
| 9 | Sunrun Solar | 58 | 4.2★ (334) | Corona, 11 mi away | Sat · Sun | — |
| 10 | Option One Solar | 58 | 4.9★ (346) | Apple Valley, 37 mi away | Sat · Sun · 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: 5.0★ from 628 Google reviews, listed on Google as “Solar energy system service”.
Based in Chino Hills, 5 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 308 Google reviews, listed on Google as “Solar energy company”.
Based in San Bernardino, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 534 Google reviews, listed on Google as “Solar energy system service”.
Based in La Verne, 20 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 246 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Ana, 31 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 1,353 Google reviews, listed on Google as “Solar energy company”.
Based in Eastvale, 14 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Good Hope, 16 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Anaheim, 20 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 322 Google reviews.
Based in Corona, 11 mi away
Ranked #9 because of its Google rating and trade focus: 4.2★ from 334 Google reviews, listed on Google as “Solar energy company”.
Based in Apple Valley, 37 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 346 Google reviews, listed on Google as “Solar energy company”.
Based in Riverside, 9 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 174 Google reviews, listed on Google as “Solar energy company”.
Based in Corona, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 559 Google reviews, listed on Google as “Solar energy system service”.
Based in Riverside, 7 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 1,365 Google reviews, the most in Sunnyslope.
Based in Riverside, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Solar energy company”.
Based in Lake Elsinore, 23 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Riverside, 4 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in Redlands, 13 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 64 Google reviews, listed on Google as “Solar energy company”.
Based in Redlands, 14 mi away
Ranked #18 because of its Google rating and review volume: 4.8★ from 1,032 Google reviews.
Based in Santa Fe Springs, 37 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 515 Google reviews, listed on Google as “Solar energy company”.
Based in Riverside, 5 mi away
Ranked #20 because of its Google rating and review volume: 4.6★ from 356 Google reviews.
Based in Fontana, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Solar energy company”.
Based in Rancho Cucamonga, 9 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Solar energy company”.
Based in Riverside, 8 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Solar energy company”.
Based in Hemet, 29 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar energy system service”.
Based in Santa Fe Springs, 36 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 262 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 441 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | P.J.B. Consulting (anything Solar related) | 57 | 5.0★ (96) | 9 mi |
| 27 | JungleU REBRANDING (RIVSOLAR) | 57 | 5.0★ (29) | 5 mi |
| 28 | Next Napa Valley Solar Co | 57 | 5.0★ (7) | 5 mi |
| 29 | SoCal Green Homes | 57 | 5.0★ (21) | 19 mi |
| 30 | Mirror Image Solar Panel Cleaning of SoCal | 57 | 5.0★ (34) | 5 mi |
| 31 | Empower Home Services | 57 | 4.9★ (95) | 5 mi |
| 32 | BestSolarCleaning, LLC | 57 | 5.0★ (81) | 29 mi |
| 33 | Solar Sparkle | 57 | 5.0★ (110) | 34 mi |
| 34 | Sunrun Solar | 57 | 4.6★ (231) | 31 mi |
| 35 | SolarRepair | 57 | 5.0★ (43) | 10 mi |
| 36 | Solar Service Professionals | 57 | 4.9★ (89) | 4 mi |
| 37 | Revelation Solar Panel Cleaning | 57 | 5.0★ (58) | 14 mi |
| 38 | V3 Electric | 57 | 4.3★ (283) | 11 mi |
| 39 | Semper Solaris | 57 | 4.7★ (156) | 31 mi |
| 40 | Energy Renovation Center | 57 | 3.7★ (43) | 9 mi |
| 41 | Good Energy Network | 56 | 5.0★ (43) | 34 mi |
| 42 | NetZero Energy & Roofing | 56 | 4.9★ (99) | 33 mi |
| 43 | BriteLite Solar | 56 | 4.8★ (51) | 11 mi |
| 44 | Clean Initiative | 56 | 4.1★ (185) | 6 mi |
| 45 | Scripps Solar Panel Cleaning | 56 | 5.0★ (129) | 28 mi |
| 46 | Blue Coast Solar Panel Cleaning | 56 | 5.0★ (73) | 34 mi |
| 47 | Greencat, Inc. | 56 | 4.9★ (373) | 2 mi |
| 48 | Elite Spotless Solar LLC | 56 | 5.0★ (7) | 3 mi |
| 49 | ACOPOWER | 56 | 4.9★ (196) | 22 mi |
| 50 | SunSolar U.S. | 56 | 5.0★ (62) | 33 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 |
|---|---|---|
| ACOSolar Inc | 5.0★ (2) | 22 mi |
| B K Window Cleaning | 5.0★ (2) | 23 mi |
| Better Power Project | 5.0★ (2) | 22 mi |
| CALIFORNIA SOLAR SERVICES, INC | 5.0★ (2) | 21 mi |
| Cardenas Solar | 5.0★ (2) | 8 mi |
| Dan’s Roofing Company Riverside | 5.0★ (2) | 5 mi |
| E Control Solutions | 5.0★ (2) | 21 mi |
| Eversun Solar Engineering LLC | 5.0★ (2) | 22 mi |
| Forme Solar - Inland Empire | 5.0★ (2) | 9 mi |
| HPM Solar | 5.0★ (2) | 17 mi |
| Jure Roofing & Solar | 5.0★ (2) | 11 mi |
| Raya Solar | 5.0★ (2) | 14 mi |
| Solar My Home Chino | 5.0★ (2) | 15 mi |
| Solar Vast | 1.0★ (2) | 12 mi |
| SolarGreen DirectPanel Chino Co | 5.0★ (2) | 15 mi |
| Sunbelt Solar Systems | 1.0★ (2) | 18 mi |
| Sunrun Solar and Tesla Powerwall | 3.0★ (2) | 5 mi |
| SunTech | 5.0★ (2) | 4 mi |
| Sunworks | 3.0★ (2) | 6 mi |
| ZenOut Construction Inc. | 2.0★ (2) | 14 mi |
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $29,770 | $33,680 | $36,640 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 441 Sunnyslope 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 Sunnyslope 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 |