435 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rubidoux: Affordable Solar Cleaning Pros, CR Score 94/100; 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 435.
Most-reviewed: EnergyAid, 1,353 Google reviews at 4.7★, the most of 435 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
435 Rubidoux solar installers are ranked here by CR Score, from 8 published factors. 43 are open 24/7, 240 open Saturdays and 129 open Sundays, based on posted hours. The median Google rating is 4.9★ across 435 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Affordable Solar Cleaning Pros | 94 | 5.0★ (628) | Loma Linda, 11 mi away | 24/7 | Overall |
| 2 | Solar Express Cleaning | 93 | 5.0★ (308) | Chino Hills, 7 mi away | 24/7 | Emergencies |
| 3 | EnergyAid | 92 | 4.8★ (534) | San Bernardino, 8 mi away | 24/7 | — |
| 4 | SoCal Solar Panel Cleaning Company | 87 | 5.0★ (246) | La Verne, 22 mi away | Sat · Sun · Evenings | — |
| 5 | CL Window Shine - Pressure Washing, & Solar Installation | 86 | 4.9★ (322) | Anaheim, 20 mi away | 24/7 | — |
| 6 | EnergyAid | 86 | 4.7★ (1,353) | Santa Ana, 31 mi away | 24/7 | Most reviews |
| 7 | Solar Panel Cleaning Windows | 85 | 5.0★ (41) | Lake Elsinore, 22 mi away | 24/7 | — |
| 8 | FlowState Solar Cleaning | 85 | 5.0★ (91) | Good Hope, 14 mi away | Sat · Sun · Evenings | — |
| 9 | Small Energy Bill | 85 | 5.0★ (10) | Riverside, 3 mi away | 24/7 | — |
| 10 | Optimum Solar Power Inc | 85 | 5.0★ (13) | Riverside, 7 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 5.0★ from 628 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chino Hills, 7 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 308 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Bernardino, 8 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 534 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Verne, 22 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 on 6 of 8 factors; credentials and recency not yet collected.
Based in Anaheim, 20 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 322 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Ana, 31 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 1,353 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lake Elsinore, 22 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 41 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Good Hope, 14 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar panel maintenance service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 3 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 7 mi away
Ranked #10 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eastvale, 14 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Solar panel maintenance service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 3 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apple Valley, 37 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 346 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Altadena, 21 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Irvine, 34 mi away
Ranked #15 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Redlands, 12 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 64 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hemet, 27 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 4 mi away
Ranked #18 because of its Google rating and review volume: 4.6★ from 356 Google reviews, 356 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fontana, 12 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Fe Springs, 39 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 515 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Anaheim, 34 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 4 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Solar energy system service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Santa Fe Springs, 38 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 262 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Corona, 11 mi away
Ranked #24 because of its Google rating and trade focus: 4.2★ from 334 Google reviews, listed on Google as “Solar energy company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hacienda Heights, 30 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Solar energy system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
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 435 Rubidoux 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 Rubidoux 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 |