200 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Winters: Right Now Air & Solar, CR Score 61/100; 4.9★ from 1,388 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): EnergyAid, posts 24/7 hours; ranked #2 of 200.
Most-reviewed: Sierra Pacific Home & Comfort, Inc., 1,779 Google reviews at 4.5★, the most of 200 ranked; ranked #46.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
200 Winters solar installers are ranked here by CR Score, from ten published factors. 27 are open 24/7, 110 open Saturdays and 59 open Sundays, based on posted hours. The median Google rating is 4.9★ across 200 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Right Now Air & Solar | 61 | 4.9★ (1,388) | Vacaville, 8 mi away | Sat · Sun · Evenings | Overall |
| 2 | EnergyAid | 60 | 4.8★ (737) | Sacramento, 29 mi away | 24/7 | Emergencies |
| 3 | Solar Shine | 59 | 4.9★ (268) | Antioch, 27 mi away | Sat · Sun | — |
| 4 | Greiner Heating, Air and Electric | 59 | 5.0★ (1,451) | Dixon, 10 mi away | Sat · Sun | — |
| 5 | Ambrose Solar | 59 | 4.9★ (258) | Vacaville, 8 mi away | — | — |
| 6 | Sonoma Solar Clean | 57 | 5.0★ (157) | Santa Rosa, 39 mi away | Sat · Sun · Evenings | — |
| 7 | Cozy Home Services | 57 | 4.9★ (463) | Vacaville, 9 mi away | Sat · Sun · Evenings | — |
| 8 | Solar Cleaning and Repair | 57 | 5.0★ (15) | Bonita, 11 mi away | Sat · Sun | — |
| 9 | Sunrun Solar | 56 | 4.2★ (375) | Sacramento, 27 mi away | Sat · Sun | — |
| 10 | North Valley Solar Power | 56 | 4.9★ (48) | Fairfield, 20 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,388 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sacramento, 29 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 737 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Antioch, 27 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dixon, 10 mi away
Ranked #4 because of its Google rating and review volume: 5.0★ from 1,451 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vacaville, 8 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 258 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Rosa, 39 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 157 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vacaville, 9 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 463 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bonita, 11 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sacramento, 27 mi away
Ranked #9 because of its Google rating and trade focus: 4.2★ from 375 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 20 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sacramento, 24 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 20 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 37 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 135 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Davis, 13 mi away
Ranked #14 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in American Canyon, 22 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Benicia, 31 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Davis, 13 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sacramento, 28 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 71 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Sacramento, 30 mi away
Ranked #19 because of its Google rating and review volume: 5.0★ from 279 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 25 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vacaville, 13 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Solar energy system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 24 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar panel maintenance service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rancho Cordova, 39 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 976 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodland, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Davis, 13 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#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 200 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 |
|---|---|---|
| Adapt Technology | 3.0★ (2) | 29 mi |
| AMG Solar Solutions | 3.0★ (2) | 19 mi |
| Bay Solar Group | 5.0★ (2) | 31 mi |
| Blue Oak Energy | 3.0★ (2) | 27 mi |
| BYO Solar Company Elk Grove | 4.5★ (2) | 34 mi |
| California Energy Initiative | 3.0★ (2) | 26 mi |
| Electric Avenue Renewables | 5.0★ (2) | 34 mi |
| Felix Solar Cleaning | 5.0★ (1) | 7 mi |
| Green Energy Products, Inc. | 3.0★ (2) | 29 mi |
| GT Solar Power Concord | 5.0★ (2) | 39 mi |
| Home Solar Inc. | 5.0★ (2) | 27 mi |
| NationWize Solar | 1.5★ (2) | 35 mi |
| NC Electric & Solar Inc | 3.0★ (2) | 38 mi |
| New Dimension Roofing and Solar | 5.0★ (2) | 18 mi |
| Next Level Roofing And Solar | 1.0★ (1) | 11 mi |
| North State Solar Cleaning, Inc | 5.0★ (2) | 24 mi |
| Robert's Solar | 3.0★ (2) | 9 mi |
| Solar Dealers | 5.0★ (2) | 37 mi |
| Thern Electric | 5.0★ (1) | 24 mi |
| West Sacramento Solar Solutions | 5.0★ (1) | 24 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 200 Winters 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 Winters 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 |