63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,388 Google reviews.
- 4.9★ from 1,388 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 821 Eubanks Dr STE C, Vacaville, CA 95688
Best Solar Installers in Vacaville, CA (2026)
238 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Vacaville: Right Now Air & Solar, CR Score 63/100; 4.9★ from 1,388 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): EnergyAid, posts 24/7 hours; ranked #4 of 238.
- 7
Most-reviewed: SunPower®, 1,576 Google reviews at 4.5★, the most of 238 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
238 Vacaville solar installers are ranked here by CR Score, from ten published factors. 23 are open 24/7, 121 open Saturdays and 64 open Sundays, based on posted hours. The median Google rating is 4.9★ across 238 rated businesses.
Top 10 solar installers in Vacaville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Right Now Air & Solar | 63 | 4.9★ (1,388) | Vacaville | Sat · Sun · Evenings | Overall |
| 2 | Solar Shine | 61 | 4.9★ (268) | Antioch, 17 mi away | Sat · Sun | — |
| 3 | Ambrose Solar | 60 | 4.9★ (258) | Vacaville | — | — |
| 4 | EnergyAid | 59 | 4.8★ (737) | Sacramento, 34 mi away | 24/7 | Emergencies |
| 5 | Greiner Heating, Air and Electric | 59 | 5.0★ (1,451) | Dixon, 13 mi away | Sat · Sun | — |
| 6 | East Bay Solar Cleaning LLC | 58 | 5.0★ (104) | Lafayette, 33 mi away | 24/7 | — |
| 7 | SunPower® | 58 | 4.5★ (1,576) | Richmond, 36 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | Sunrun Solar | 58 | 4.8★ (472) | Petaluma, 37 mi away | Sat · Sun | — |
| 9 | Cozy Home Services | 58 | 4.9★ (463) | Vacaville | Sat · Sun · Evenings | — |
| 10 | North Valley Solar Power | 57 | 4.9★ (48) | Fairfield, 9 mi away | Sat · Evenings | — |
The 238 best solar installers in Vacaville, ranked
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.
#2 Solar Shine
Based in Antioch, 17 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 268 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
Based in Vacaville
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 258 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 258 Google reviews
- Hours
- Mon–Fri 8 AM–5:30 PM · Sat–Sun closed
- Address
- 820 Eubanks Dr Suite A, Vacaville, CA 95688
#4 EnergyAid
Based in Sacramento, 34 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 737 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 737 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1767 Tribute Rd Ste. E, Sacramento, CA 95815
Based in Dixon, 13 mi away
59/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 1,451 Google reviews.
- 5.0★ from 1,451 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4:30 PM · Sun 8 AM–4 PM
- Address
- 8235 Pedrick Rd, Dixon, CA 95620
Based in Lafayette, 33 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 104 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 104 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- O'Conner Dr, Lafayette, CA 94549
#7 SunPower®
Based in Richmond, 36 mi away
58/100CR ScoreRanked #7 because of its Google rating and review volume: 4.5★ from 1,576 Google reviews, the most in Vacaville.
- 4.5★ from 1,576 Google reviews
- Hours
- Mon–Fri 5 AM–8 PM · Sat–Sun 6 AM–8 PM
- Address
- 880 Harbour Way S Suite 600, Richmond, CA 94804
#8 Sunrun Solar
Based in Petaluma, 37 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 472 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 472 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 755 Southpoint Blvd, Petaluma, CA 94954
Based in Vacaville
58/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 463 Google reviews.
- 4.9★ from 463 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 875 Cotting Ln STE H, Vacaville, CA 95688
Based in Fairfield, 9 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 48 Google reviews
- Hours
- Mon–Sat 7 AM–10 PM · Sun closed
- Address
- 1745 Enterprise Dr #2d, Fairfield, CA 94533
#11 Semper Solaris
Based in Concord, 25 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 135 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 135 Google reviews
- Hours
- Mon–Sat 7 AM–12 AM · Sun 9 AM–12 AM
- Address
- 1990 Olivera Rd Suite E, Concord, CA 94520
#12 Mirador Energy
Based in Fairfield, 8 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 1652 W Texas St #101a, Fairfield, CA 94533
Based in Benicia, 21 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#14 Twinpeak Solar
Based in American Canyon, 12 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Vacaville
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Solar energy system service”.
- 4.7★ from 15 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 10 AM–3 PM · Sun closed
#16 Living Brite
Based in Fairfield, 8 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Fri 8:30 AM–7 PM · Sat 10 AM–7 PM · Sun closed
- Address
- 1293 Oliver Rd, Fairfield, CA 94534
#17 Source Energy
Based in Walnut Creek, 31 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 51 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–5 PM · Sun 10 AM–3 PM
- Address
- 161 N Civic Dr #400, Walnut Creek, CA 94596
Based in Oakley, 32 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 118 Google reviews
- Hours
- Mon–Sat 7 AM–5 PM · Sun closed
- Address
- 640 Allagash Ct, Oakley, CA 94561
Based in Bonita, 16 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Brentwood, 34 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 70 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 9010 Brentwood Blvd STE F, Brentwood, CA 94513
Based in Fairfield, 5 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sun 9 AM–9 PM
Based in Napa, 18 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 29 Vanessa Ct W, Napa, CA 94558
#23 Ongaro & Sons
Based in Santa Rosa, 40 mi away
55/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 1,222 Google reviews.
- 4.9★ from 1,222 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 250 D St Suite 700B, Santa Rosa, CA 95404
Based in Fairfield, 18 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 30 Google reviews
- Hours
- Mon–Sat 8 AM–7 PM · Sun closed
#25 Sunrun Solar
Based in Sacramento, 34 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.2★ from 375 Google reviews, listed on Google as “Solar energy company”.
- 4.2★ from 375 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 3835 N Freeway Blvd, Sacramento, CA 95834
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 238 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Go Green Solar Clean | 55 | 5.0★ (10) | 28 mi |
| 27 | Bright Solar Panel Cleaning Services | 55 | 5.0★ (5) | 21 mi |
| 28 | Citadel Roofing & Solar | 54 | 4.6★ (260) | In Vacaville |
| 29 | EXT Cleaning | 54 | 5.0★ (279) | 32 mi |
| 30 | Ongaro & Sons | 54 | 4.9★ (538) | 36 mi |
| 31 | SolarPower Divine Davis | 54 | 4.5★ (11) | 19 mi |
| 32 | Hikari Window Cleaning | 54 | 5.0★ (277) | 2 mi |
| 33 | North Valley Solar Power | 54 | 5.0★ (15) | 19 mi |
| 34 | Citadel Roofing & Solar | 54 | 4.7★ (71) | 34 mi |
| 35 | Five Star Solar | 54 | 4.9★ (337) | 32 mi |
| 36 | Gomax Solar System inc. | 54 | 5.0★ (17) | 20 mi |
| 37 | Element Electric | 54 | 5.0★ (20) | 11 mi |
| 38 | Synergy Power | 53 | 4.9★ (205) | 40 mi |
| 39 | Semper Solaris | 53 | 4.5★ (34) | 35 mi |
| 40 | North Valley Solar Power | 53 | 4.8★ (25) | 27 mi |
| 41 | Smart Home Security Control | 53 | 5.0★ (31) | 32 mi |
| 42 | Save a Lot Solar | 53 | 4.9★ (45) | 37 mi |
| 43 | Tesla Solar | 53 | 4.5★ (8) | 36 mi |
| 44 | KOTA Energy Group | 53 | 4.1★ (94) | 25 mi |
| 45 | High Definition Solar | 53 | 4.1★ (142) | 26 mi |
| 46 | Davis CA Solar Test Site | 53 | 4.8★ (10) | 21 mi |
| 47 | First Response Solar | 52 | 5.0★ (90) | 40 mi |
| 48 | Orange Solar | 52 | 4.8★ (17) | 25 mi |
| 49 | Solar Harmonics | 52 | 5.0★ (68) | 33 mi |
| 50 | A + Window and Gutter Cleaning | 52 | 4.9★ (95) | 9 mi |
Also serving Vacaville
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 |
|---|---|---|
| Able Electric | In Vacaville | |
| AMG Solar Solutions | 3.0★ (2) | 31 mi |
| Bay Solar Group | 5.0★ (2) | 34 mi |
| Blue Oak Energy | 3.0★ (2) | 33 mi |
| BYO Solar Company Elk Grove | 4.5★ (2) | 34 mi |
| California Energy Initiative | 3.0★ (2) | 32 mi |
| Case Electric Inc | 4.9★ (56) | In Vacaville |
| Centsunergy LLC | In Vacaville | |
| Contra Costa Sun | 5.0★ (2) | 31 mi |
| GT Solar Power Concord | 5.0★ (2) | 27 mi |
| Home Solar Inc. | 5.0★ (2) | 19 mi |
| Legacy Electrical Service & Construction | In Vacaville | |
| NationWize Solar | 1.5★ (2) | 23 mi |
| NC Electric & Solar Inc | 3.0★ (2) | 27 mi |
| New Dimension Roofing and Solar | 5.0★ (2) | 6 mi |
| Next Level Roofing And Solar | 1.0★ (1) | In Vacaville |
| Robert's Solar | 3.0★ (2) | 10 mi |
| Solar Dealers | 5.0★ (2) | 34 mi |
| VE Electric, INC | 4.7★ (15) | In Vacaville |
| Vine Electric | In Vacaville |
How much do solar installers cost in Vacaville?
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 Vacaville solar installers
We scored 238 Vacaville 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 Vacaville 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 |
Solar installers in Vacaville: frequently asked questions
Who is the best solar installer in Vacaville?
By CR Score, the highest-ranked solar installer in Vacaville, CA is Right Now Air & Solar with a CR Score of 63/100. It has 4.9★ from 1,388 Google reviews. It is open 7 days a week. Solar Shine (#2) and Ambrose Solar (#3) follow. We ranked 238 solar installers on ten factors, last updated October 22, 2026.
How many solar installers are there in Vacaville?
ContractorsRanked ranks 238 solar installers serving Vacaville, CA. 5 of them are based in Vacaville; 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 Vacaville are open 24/7?
23 ranked solar installers in Vacaville post 24/7 hours. The highest-ranked are EnergyAid (#4), East Bay Solar Cleaning LLC (#6) and Caro Electric, LLC (#13). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Vacaville work on weekends?
121 of 238 ranked solar installers post Saturday hours and 64 post Sunday hours. The highest-ranked open Saturdays are Right Now Air & Solar (#1), Solar Shine (#2) and EnergyAid (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Vacaville?
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 Vacaville solar installers have?
The median Google rating among 238 rated solar installers in Vacaville is 4.9★, with a median of 21 reviews. SunPower® has the most, 1,576 reviews, and ranks #7. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do solar installers outside Vacaville count in this ranking?
Yes, if they are within 40 mi of the Vacaville 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 Vacaville
- October 2026: CR Scores recalculated for 238 solar installers serving Vacaville.
- October 2026: 1 duplicate listing merged.
More solar installers and Vacaville pages
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Other trades in Vacaville
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- Plumbers in Vacaville159 ranked
- Electricians in Vacaville96 ranked
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- Painters in Vacaville46 ranked
- Landscapers in Vacaville53 ranked
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- Bathroom remodelers in Vacaville78 ranked
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- Gutter installers in Vacaville50 ranked
- Insulation contractors in Vacaville25 ranked
- Garage door repair companies in Vacaville40 ranked
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- Tree services in Vacaville83 ranked
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- All contractors in Vacaville