642 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Whittier: Mr. Solar Clean, CR Score 63/100; 5.0★ from 369 Google reviews; open 24/7.
Best for emergencies (open 24/7): EnergyAid, posts 24/7 hours; ranked #4 of 642.
Most-reviewed: Energy Service Partners, 1,814 Google reviews at 4.3★, the most of 642 ranked; ranked #39.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
642 Whittier solar installers are ranked here by CR Score, from ten published factors. 79 are open 24/7, 364 open Saturdays and 231 open Sundays, based on posted hours. The median Google rating is 5.0★ across 642 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mr. Solar Clean | 63 | 5.0★ (369) | Carson, 15 mi away | 24/7 | Overall |
| 2 | Semper Solaris | 63 | 4.7★ (515) | Santa Fe Springs, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Sunrun Solar | 62 | 4.8★ (262) | Santa Fe Springs, 3 mi away | Sat · Sun | — |
| 4 | EnergyAid | 62 | 4.7★ (1,353) | Santa Ana, 20 mi away | 24/7 | Emergencies |
| 5 | Solar Express Cleaning | 61 | 5.0★ (308) | Chino Hills, 30 mi away | 24/7 | — |
| 6 | SoCal Solar Panel Cleaning Company | 61 | 5.0★ (246) | La Verne, 18 mi away | Sat · Sun · Evenings | — |
| 7 | BestSolarCleaning, LLC | 60 | 5.0★ (81) | Hacienda Heights, 6 mi away | Sat · Sun · Evenings | — |
| 8 | King David's Solar Panel Cleaning | 60 | 4.9★ (56) | Bellflower, 1 mi away | Sat · Sun · Evenings | — |
| 9 | POWER PRO ELECTRIC & SOLAR | 60 | 4.9★ (148) | Whittier | 24/7 | — |
| 10 | Smart Solar Panel Cleaning Los Angeles | 60 | 5.0★ (90) | Redondo Beach, 20 mi away | 24/7 | — |
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 369 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Fe Springs, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 515 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Fe Springs, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 262 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Ana, 20 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 1,353 Google reviews, listed on Google as “Solar energy company”.
Based in Chino Hills, 30 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 308 Google reviews, listed on Google as “Solar energy company”.
Based in La Verne, 18 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 246 Google reviews, listed on Google as “Solar energy company”.
Based in Hacienda Heights, 6 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Solar energy system service”.
Based in Bellflower, 1 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Whittier
Ranked #9 because of its Google rating and trade focus: 4.9★ from 148 Google reviews, listed on Google as “Electrician”.
Based in Redondo Beach, 20 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Solar energy company”.
Based in Long Beach, 16 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Los Angeles, 16 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “Solar energy company”.
Based in Downey, 6 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Solar energy company”.
Based in Alhambra, 10 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Santa Ana, 21 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 156 Google reviews, listed on Google as “Solar energy company”.
Based in Anaheim, 26 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Solar energy company”.
Based in Westminster, 14 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “Solar energy company”.
Based in Beverly Hills, 20 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Solar energy company”.
Based in Los Angeles, 19 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 66 Google reviews, listed on Google as “Solar energy company”.
Based in Walnut, 9 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 161 Google reviews, listed on Google as “Solar energy company”.
Based in Glendale, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 348 Google reviews, listed on Google as “Solar energy company”.
Based in Eastvale, 28 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Irvine, 23 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based in Irvine, 22 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 99 Google reviews, listed on Google as “Solar energy company”.
Based in Burbank, 33 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 79 Google reviews, listed on Google as “Solar energy system service”.
#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 642 ranked solar installers here; the rest are on their profiles.
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) | 13 mi |
| AEM Electric | 4.7★ (14) | In Whittier |
| Alacrity Energy | 5.0★ (2) | 13 mi |
| All Covered Solar Solutions | 5.0★ (2) | 15 mi |
| Best Solar Company Rowland Heights | 5.0★ (2) | 8 mi |
| Better Power Project | 5.0★ (2) | 13 mi |
| Bright Spot Solar | 5.0★ (2) | 9 mi |
| Burning Daylight Solar | 5.0★ (2) | 8 mi |
| California Solar Energy & Green Group | 5.0★ (2) | 4 mi |
| Chronicle Electric Inc. | 3.0★ (2) | 8 mi |
| Duncan Solar | 5.0★ (2) | 2 mi |
| Effective solar LLC | 1.0★ (2) | 16 mi |
| Halo Energy Partners | In Whittier | |
| Lux Smart Energy | 5.0★ (2) | 12 mi |
| Luxe Solar Cleaning | 5.0★ (2) | 15 mi |
| RenuLogix | 5.0★ (2) | 13 mi |
| Solariant, Inc. | 5.0★ (2) | 7 mi |
| SolarPanel RoofNSave Buena | 5.0★ (2) | 7 mi |
| sunshine Pacific group America Inc | 3.0★ (2) | 8 mi |
| Zenith Solar Installation Garden Grove | 1.0★ (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 642 Whittier 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 Whittier 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 |