61/100CR Score
Ranked #1 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
Best Solar Installers in Fairfield, CA (2026)
256 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Fairfield: Solar Shine, CR Score 61/100; 4.9★ from 268 Google reviews; open 7 days a week.
- 3
Best for emergencies (open 24/7): East Bay Solar Cleaning LLC, posts 24/7 hours; ranked #3 of 256.
- 4
Most-reviewed: SunPower®, 1,576 Google reviews at 4.5★, the most of 256 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
256 Fairfield solar installers are ranked here by CR Score, from ten published factors. 28 are open 24/7, 132 open Saturdays and 75 open Sundays, based on posted hours. The median Google rating is 4.9★ across 256 rated businesses.
Top 10 solar installers in Fairfield at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Solar Shine | 61 | 4.9★ (268) | Antioch, 15 mi away | Sat · Sun | Overall |
| 2 | Right Now Air & Solar | 61 | 4.9★ (1,388) | Vacaville, 12 mi away | Sat · Sun · Evenings | — |
| 3 | East Bay Solar Cleaning LLC | 60 | 5.0★ (104) | Lafayette, 25 mi away | 24/7 | Emergencies |
| 4 | SunPower® | 60 | 4.5★ (1,576) | Richmond, 29 mi away | Sat · Sun · Evenings | Most reviews |
| 5 | Sunrun Solar | 59 | 4.8★ (472) | Petaluma, 33 mi away | Sat · Sun | — |
| 6 | North Valley Solar Power | 59 | 4.9★ (48) | Fairfield | Sat · Evenings | — |
| 7 | EnergyAid | 58 | 4.8★ (737) | Sacramento, 40 mi away | 24/7 | — |
| 8 | Semper Solaris | 58 | 4.6★ (135) | Concord, 17 mi away | Sat · Sun · Evenings | — |
| 9 | Ambrose Solar | 58 | 4.9★ (258) | Vacaville, 12 mi away | — | — |
| 10 | Mirador Energy | 58 | 5.0★ (15) | Fairfield | Sat · Sun · Evenings | — |
The 256 best solar installers in Fairfield, 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.
Based in Vacaville, 12 mi away
61/100CR ScoreRanked #2 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
Based in Lafayette, 25 mi away
60/100CR ScoreRanked #3 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
#4 SunPower®
Based in Richmond, 29 mi away
60/100CR ScoreRanked #4 because of its Google rating and review volume: 4.5★ from 1,576 Google reviews, the most in Fairfield.
- 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
#5 Sunrun Solar
Based in Petaluma, 33 mi away
59/100CR ScoreRanked #5 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 Fairfield
59/100CR ScoreRanked #6 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
#7 EnergyAid
Based in Sacramento, 40 mi away
58/100CR ScoreRanked #7 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 Concord, 17 mi away
58/100CR ScoreRanked #8 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
Based in Vacaville, 12 mi away
58/100CR ScoreRanked #9 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
#10 Mirador Energy
Based in Fairfield
58/100CR ScoreRanked #10 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 Fairfield
58/100CR ScoreRanked #11 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
Based in Dixon, 20 mi away
58/100CR ScoreRanked #12 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 Benicia, 14 mi away
57/100CR 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, 5 mi away
57/100CR 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 Fairfield
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 21 Google reviews
- Hours
- Mon–Fri 8 AM–10 PM · Sat 8 AM–12 PM · Sun closed
#16 Living Brite
Based in Fairfield
57/100CR 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, 24 mi away
57/100CR 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 Vacaville, 11 mi away
56/100CR ScoreRanked #18 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 Oakley, 29 mi away
56/100CR ScoreRanked #19 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 Brentwood, 30 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
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, 15 mi away
56/100CR 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, 39 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 Alameda, 15 mi away
55/100CR ScoreRanked #24 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
- Open 24/7
- Hours
- Open 24 hours, 7 days
#25 Ongaro & Sons
Based in San Anselmo, 34 mi away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 762 Google reviews.
- 4.9★ from 762 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Ross Ave, San Anselmo, CA 94960
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 256 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Ongaro & Sons | 55 | 4.9★ (538) | 33 mi |
| 27 | Solar Bill Review | 55 | 5.0★ (128) | 38 mi |
| 28 | Gomax Solar System inc. | 55 | 5.0★ (17) | 13 mi |
| 29 | Synergy Power | 54 | 4.9★ (205) | 32 mi |
| 30 | Solar Cleaning and Repair | 54 | 5.0★ (15) | 23 mi |
| 31 | Hikari Window Cleaning | 54 | 5.0★ (277) | In Fairfield |
| 32 | Save a Lot Solar | 54 | 4.9★ (45) | 29 mi |
| 33 | North Valley Solar Power | 54 | 4.8★ (25) | 19 mi |
| 34 | Bundle, A Solar Company | 54 | 5.0★ (38) | 37 mi |
| 35 | Smart Home Security Control | 54 | 5.0★ (31) | 24 mi |
| 36 | Squeaky Clean Solar | 54 | 5.0★ (5) | In Fairfield |
| 37 | Reynolds Solar Cleaning | 54 | 4.7★ (15) | 14 mi |
| 38 | KOTA Energy Group | 54 | 4.1★ (94) | 17 mi |
| 39 | High Definition Solar | 54 | 4.1★ (142) | 19 mi |
| 40 | Go Green Solar Clean | 54 | 5.0★ (10) | 34 mi |
| 41 | EXT Cleaning | 53 | 5.0★ (279) | 38 mi |
| 42 | Teodor Window Solar Cleaning | 53 | 4.9★ (80) | 15 mi |
| 43 | Smart Solar Panel Cleaning Bay Area | 53 | 5.0★ (44) | 32 mi |
| 44 | Singh Solar Couple | 53 | 5.0★ (18) | 24 mi |
| 45 | Solar Harmonics | 53 | 5.0★ (68) | 28 mi |
| 46 | Clean Valley Solutions | 53 | 5.0★ (12) | In Fairfield |
| 47 | North Valley Solar Power | 53 | 4.9★ (19) | 25 mi |
| 48 | Five Star Solar | 53 | 4.9★ (337) | 37 mi |
| 49 | Stellar Power | 53 | 5.0★ (14) | 24 mi |
| 50 | Citadel Roofing & Solar | 53 | 4.6★ (260) | 11 mi |
Also serving Fairfield
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 |
|---|---|---|
| Blaze Solar Energy Fairfield | In Fairfield | |
| Contra Costa Sun | 5.0★ (2) | 24 mi |
| Dooley's Heating and Air | 4.8★ (56) | In Fairfield |
| Eagle Shield | 3.0★ (2) | 31 mi |
| Electrify My Home | 4.9★ (46) | In Fairfield |
| Golden State Comfort Systems | 5.0★ (19) | In Fairfield |
| GT Solar Power Concord | 5.0★ (2) | 19 mi |
| Home Solar Inc. | 5.0★ (2) | 20 mi |
| NationWize Solar | 1.5★ (2) | 16 mi |
| NC Electric & Solar Inc | 3.0★ (2) | 19 mi |
| New Dimension Roofing and Solar | 5.0★ (2) | In Fairfield |
| One Call Solutions | In Fairfield | |
| Phils Electric Company | 5.0★ (2) | 32 mi |
| Robert's Solar | 3.0★ (2) | 17 mi |
| Skylight Electrical Service | In Fairfield | |
| Solar Dealers | 5.0★ (2) | 32 mi |
| SolarPanal EranNSave Danville | 5.0★ (2) | 32 mi |
| Spartan Home Services | 5.0★ (2) | 31 mi |
| Watt Now, Inc. | In Fairfield | |
| You Benefit Solar | 3.0★ (2) | 31 mi |
How much do solar installers cost in Fairfield?
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 Fairfield solar installers
We scored 256 Fairfield 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 Fairfield 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 Fairfield: frequently asked questions
Who is the best solar installer in Fairfield?
By CR Score, the highest-ranked solar installer in Fairfield, CA is Solar Shine with a CR Score of 61/100. It has 4.9★ from 268 Google reviews. It is open 7 days a week. Right Now Air & Solar (#2) and East Bay Solar Cleaning LLC (#3) follow. We ranked 256 solar installers on ten factors, last updated October 22, 2026.
How many solar installers are there in Fairfield?
ContractorsRanked ranks 256 solar installers serving Fairfield, CA. 9 of them are based in Fairfield; 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 Fairfield are open 24/7?
28 ranked solar installers in Fairfield post 24/7 hours. The highest-ranked are East Bay Solar Cleaning LLC (#3), EnergyAid (#7) 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 Fairfield work on weekends?
132 of 256 ranked solar installers post Saturday hours and 75 post Sunday hours. The highest-ranked open Saturdays are Solar Shine (#1), Right Now Air & Solar (#2) and East Bay Solar Cleaning LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Fairfield?
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 Fairfield solar installers have?
The median Google rating among 256 rated solar installers in Fairfield is 4.9★, with a median of 21 reviews. SunPower® has the most, 1,576 reviews, and ranks #4. 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 Fairfield count in this ranking?
Yes, if they are within 40 mi of the Fairfield 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 Fairfield
- October 2026: CR Scores recalculated for 256 solar installers serving Fairfield.
- October 2026: 1 duplicate listing merged.
More solar installers and Fairfield pages
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