93/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 308 Google reviews, open 24/7.
- 5.0★ from 308 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Solar Installers in Rancho Cucamonga, CA (2026)
451 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rancho Cucamonga: Solar Express Cleaning, CR Score 93/100; 5.0★ from 308 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Affordable Solar Cleaning Pros, posts 24/7 hours; ranked #2 of 451.
- 6
Most-reviewed: EnergyAid, 1,353 Google reviews at 4.7★, the most of 451 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
451 Rancho Cucamonga solar installers are ranked here by CR Score, from 8 published factors. 48 are open 24/7, 260 open Saturdays and 141 open Sundays, based on posted hours. The median Google rating is 4.9★ across 451 rated businesses.
Top 10 solar installers in Rancho Cucamonga at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Solar Express Cleaning | 93 | 5.0★ (308) | Chino Hills, 7 mi away | 24/7 | Overall |
| 2 | Affordable Solar Cleaning Pros | 92 | 5.0★ (628) | Loma Linda, 20 mi away | 24/7 | Emergencies |
| 3 | EnergyAid | 91 | 4.8★ (534) | San Bernardino, 18 mi away | 24/7 | — |
| 4 | SoCal Solar Panel Cleaning Company | 89 | 5.0★ (246) | La Verne, 9 mi away | Sat · Sun · Evenings | — |
| 5 | SoCal Green Homes | 86 | 5.0★ (21) | Altadena, 8 mi away | 24/7 | — |
| 6 | EnergyAid | 86 | 4.7★ (1,353) | Santa Ana, 30 mi away | 24/7 | Most reviews |
| 7 | CL Window Shine - Pressure Washing, & Solar Installation | 86 | 4.9★ (322) | Anaheim, 22 mi away | 24/7 | — |
| 8 | MAVS Pressure Wash | 85 | 5.0★ (118) | Rancho Cucamonga | 24/7 | — |
| 9 | Hydromax Exterior Solutions | 84 | 5.0★ (110) | Upland, 4 mi away | 24/7 | — |
| 10 | Semper Solaris | 84 | 4.7★ (515) | Santa Fe Springs, 30 mi away | Sat · Sun · Evenings | — |
The 451 best solar installers in Rancho Cucamonga, 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 Loma Linda, 20 mi away
92/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 628 Google reviews, open 24/7.
- 5.0★ from 628 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1924 Hardt St, Loma Linda, CA 92354
#3 EnergyAid
Based in San Bernardino, 18 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.8★ from 534 Google reviews, open 24/7.
- 4.8★ from 534 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2211 S Hunts Ln ste p, San Bernardino, CA 92408
Based in La Verne, 9 mi away
89/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 246 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 246 Google reviews
- Hours
- Mon–Fri 7 AM–9 PM · Sat 7 AM–8 PM · Sun 7 AM–5 PM
- Address
- 2552 Foothill Blvd APT 322, La Verne, CA 91750
Based in Altadena, 8 mi away
86/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#6 EnergyAid
Based in Santa Ana, 30 mi away
86/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 1,353 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 1,353 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1669 E Wilshire Ave STE 606, Santa Ana, CA 92705
Based in Anaheim, 22 mi away
86/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 322 Google reviews, open 24/7.
- 4.9★ from 322 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Rancho Cucamonga
85/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 118 Google reviews, open 24/7.
- 5.0★ from 118 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Upland, 4 mi away
84/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 110 Google reviews, open 24/7.
- 5.0★ from 110 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1352 Butler Way, Upland, CA 91786
#10 Semper Solaris
Based in Santa Fe Springs, 30 mi away
84/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 515 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 515 Google reviews
- Hours
- Mon–Sat 7 AM–12 AM · Sun 9 AM–12 AM
- Address
- 10713 Norwalk Blvd, Santa Fe Springs, CA 90670
#11 Option One Solar
Based in Apple Valley, 36 mi away
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 346 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 346 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 13581 John Glenn Rd A, Apple Valley, CA 92308
Based in Eastvale, 18 mi away
84/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 310 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 7 AM–12 PM · Sun closed
Based in Hacienda Heights, 21 mi away
84/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Solar energy system service”.
- 5.0★ from 81 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 7 AM–5 PM
- Address
- 17009 Pepper Brook Way, Hacienda Heights, CA 91745
#14 Sunrun Solar
Based in Santa Fe Springs, 29 mi away
84/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 262 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 262 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 12830 Romandel Ave, Santa Fe Springs, CA 90670
Based in Lake Elsinore, 32 mi away
84/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 41 Google reviews, open 24/7.
- 5.0★ from 41 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15087 Ficus St, Lake Elsinore, CA 92530
Based in Fontana, 8 mi away
84/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 32 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 10 AM–8 PM
- Address
- 15471 Petunia St, Fontana, CA 92336
Based in Irvine, 33 mi away
84/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
- 5.0★ from 43 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2211 Michelson Dr Suite 900, Irvine, CA 92612
Based in Riverside, 16 mi away
84/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10000 Indiana Ave ste 2, Riverside, CA 92503
Based in Good Hope, 27 mi away
84/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 91 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Riverside, 15 mi away
83/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
- 5.0★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6296 Magnolia Ave Suite D, Riverside, CA 92506
Based in Whittier, 28 mi away
83/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 148 Google reviews, open 24/7.
- 4.9★ from 148 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11721 Whittier Blvd, Whittier, CA 90601
Based in Rancho Cucamonga
83/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 52 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 11175 Azusa Ct, Rancho Cucamonga, CA 91730
#23 Solar Sparkle
Based in Anaheim, 34 mi away
83/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 110 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
Based in Chino Hills, 12 mi away
83/100CR ScoreRanked #24 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
- 15219 Green Valley Dr, Chino Hills, CA 91709
Based in Riverside, 16 mi away
83/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1825 Chicago Ave, Riverside, CA 92507
Solar installers ranked #26 to #50
#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 451 ranked solar installers here; the rest are on their profiles.
Also serving Rancho Cucamonga
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 |
|---|---|---|
| Apec Solar | In Rancho Cucamonga | |
| Electric FX Corp. | 5.0★ (2) | In Rancho Cucamonga |
| Forme Solar - Inland Empire | 5.0★ (2) | In Rancho Cucamonga |
| High Yield Solar | 5.0★ (1) | In Rancho Cucamonga |
| Jericho Solar Services | In Rancho Cucamonga | |
| Jose L Castro | In Rancho Cucamonga | |
| My SoCal Solar, LLC | In Rancho Cucamonga | |
| Nulife Power Services, LLC | In Rancho Cucamonga | |
| Nuvision Energy Solutions Inc | In Rancho Cucamonga | |
| Pearce Renewables | In Rancho Cucamonga | |
| Premier Community Construction | 1.0★ (1) | In Rancho Cucamonga |
| QHI Roofing & Solar Contractors | In Rancho Cucamonga | |
| QHI Solar Panel Contractor | In Rancho Cucamonga | |
| Rancho Construction, Inc | 1.0★ (1) | In Rancho Cucamonga |
| Shop Your Solar | 5.0★ (1) | In Rancho Cucamonga |
| SOLAR | In Rancho Cucamonga | |
| Solar Energy Fields | In Rancho Cucamonga | |
| Solar Panel Cleaning Specialists | In Rancho Cucamonga | |
| Sunplicity Energy | 5.0★ (1) | In Rancho Cucamonga |
| Van Lund Roofing and Solar | In Rancho Cucamonga |
How much do solar installers cost in Rancho Cucamonga?
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 |
How we ranked Rancho Cucamonga solar installers
We scored 451 Rancho Cucamonga 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 Rancho Cucamonga 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 Rancho Cucamonga: frequently asked questions
Who is the best solar installer in Rancho Cucamonga?
By CR Score, the highest-ranked solar installer in Rancho Cucamonga, CA is Solar Express Cleaning with a CR Score of 93/100. It has 5.0★ from 308 Google reviews. It is open 24/7. Affordable Solar Cleaning Pros (#2) and EnergyAid (#3) follow. We ranked 451 solar installers on 8 factors, last updated October 22, 2026.
How many solar installers are there in Rancho Cucamonga?
ContractorsRanked ranks 451 solar installers serving Rancho Cucamonga, CA. 3 of them are based in Rancho Cucamonga; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which solar installers in Rancho Cucamonga are open 24/7?
48 ranked solar installers in Rancho Cucamonga post 24/7 hours. The highest-ranked are Solar Express Cleaning (#1), Affordable Solar Cleaning Pros (#2) and EnergyAid (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Rancho Cucamonga work on weekends?
260 of 451 ranked solar installers post Saturday hours and 141 post Sunday hours. The highest-ranked open Saturdays are Solar Express Cleaning (#1), Affordable Solar Cleaning Pros (#2) and EnergyAid (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Rancho Cucamonga?
Solar panel installation typically costs $29,770 to $36,640, with $33,680 typical (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)). The range is adjusted for California. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rancho Cucamonga solar installers have?
The median Google rating among 451 rated solar installers in Rancho Cucamonga is 4.9★, with a median of 15 reviews. EnergyAid has the most, 1,353 reviews, and ranks #6. 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 Rancho Cucamonga count in this ranking?
Yes, if they are within 40 mi of the Rancho Cucamonga 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 Rancho Cucamonga
- October 2026: CR Scores recalculated for 451 solar installers serving Rancho Cucamonga.
- October 2026: 3 duplicate listings merged.
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