86/100CR Score
Ranked #1 because of its Google rating and availability: 4.6★ from 21 Google reviews, open 24/7.
- 4.6★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Solar Installers in Williams, CA (2026)
21 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Williams: On Point Electric, CR Score 86/100; 4.6★ from 21 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Ace Carpet Cleaning & Window Washing, posts 24/7 hours; ranked #3 of 21.
- 4
Most-reviewed: Westhaven Power, 248 Google reviews at 4.6★, the most of 21 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
21 Williams solar installers are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 13 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 5.0★ across 21 rated businesses.
Top 10 solar installers in Williams at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | On Point Electric | 86 | 4.6★ (21) | Redding, 15 mi away | 24/7 | Overall |
| 2 | Opal Solar & Gutter Cleaning | 85 | 5.0★ (53) | Yuba City, 27 mi away | Sat · Sun · Evenings | — |
| 3 | Ace Carpet Cleaning & Window Washing | 82 | 4.9★ (96) | Yuba City, 28 mi away | 24/7 | Emergencies |
| 4 | Westhaven Power | 82 | 4.6★ (248) | Yuba City, 28 mi away | Sat | Most reviews |
| 5 | Valley Air & Electric | 80 | 4.4★ (33) | Linda, 14 mi away | 24/7 | — |
| 6 | North Valley Solar Power | 79 | 4.9★ (24) | Yuba City, 27 mi away | Sat · Evenings | — |
| 7 | Defries Pressure Washing | 78 | 5.0★ (28) | Woodland, 39 mi away | 24/7 | — |
| 8 | DIY Solar Planning | 76 | 5.0★ (39) | Yuba City, 29 mi away | — | — |
| 9 | Orange Solar | 75 | 4.8★ (17) | Woodland, 38 mi away | Sat | — |
| 10 | Safe Haven Solar | 74 | 4.5★ (17) | Yuba City, 21 mi away | — | — |
The 21 best solar installers in Williams, 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 Yuba City, 27 mi away
85/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 53 Google reviews
- Hours
- Mon–Sun 7 AM–8:30 PM
- Address
- 871 Bromley Ave, Yuba City, CA 95993
Based in Yuba City, 28 mi away
82/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 96 Google reviews, open 24/7.
- 4.9★ from 96 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 610 Marie Ave, Yuba City, CA 95991
Based in Yuba City, 28 mi away
82/100CR ScoreRanked #4 because of its Google rating and review volume: 4.6★ from 248 Google reviews, the most Google reviews on this list (248).
- 4.6★ from 248 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 800 Northgate Dr suite c, Yuba City, CA 95991
Based in Linda, 14 mi away
80/100CR ScoreRanked #5 because of its Google rating and availability: 4.4★ from 33 Google reviews, open 24/7.
- 4.4★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Yuba City, 27 mi away
79/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 24 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 24 Google reviews
- Hours
- Mon–Sat 7 AM–10 PM · Sun closed
- Address
- 1510 Poole Blvd Suite 100, Yuba City, CA 95993
Based in Woodland, 39 mi away
78/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 28 Google reviews, open 24/7.
- 5.0★ from 28 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 547 Thomas St, Woodland, CA 95776
Based in Yuba City, 29 mi away
76/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 39 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 2452 Oak Ct, Yuba City, CA 95991
#9 Orange Solar
Based in Woodland, 38 mi away
75/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 17 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 221 W Main St, Woodland, CA 95695
#10 Safe Haven Solar
Based in Yuba City, 21 mi away
74/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 17 Google reviews
- Hours
- Mon–Fri 7 AM–5:30 PM · Sat–Sun closed
- Address
- 1989 Acacia Ave, Sutter, CA 95982
#11 GSC SOLAR
Based in Yuba City, 28 mi away
73/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Fri 10 AM–6 PM · Sat 10 AM–5 PM · Sun closed
- Address
- 1212 Bridge St A, Yuba City, CA 95991
Based in Tierra Buena, 31 mi away
71/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 7 days a week.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
#13 Solar Joe
Based in Woodland, 39 mi away
71/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–10 PM · Sun closed
- Address
- 283 Main St Ste 170, Woodland, CA 95695
Based in Woodland, 39 mi away
71/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 132 Google reviews, 132 Google reviews.
- 4.9★ from 132 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 10 N East St STE 106, Woodland, CA 95776
#15 PrismGlow
Based in Oroville, 38 mi away
70/100CR ScoreRanked #15 because of its Google rating and availability: 4.4★ from 7 Google reviews, open 7 days a week.
- 4.4★ from 7 Google reviews
- Hours
- Mon–Thu 11 AM–7 PM · Fri 11 AM–8 PM · Sat 8 AM–8 PM · Sun 12 PM–7 PM
- Address
- 1663 Grand Ave, Oroville, CA 95965
Based in Woodland, 38 mi away
70/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 9 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 1230 Harter Ave suite b, Woodland, CA 95776
Based in Chico, 36 mi away
68/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Wed 9 AM–7 PM · Thu 9 AM–7:30 PM · Fri 9 AM–7 PM · Sat–Sun closed
Based in South Oroville, 39 mi away
67/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Gutter cleaning service”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 9 AM–8 PM · Sun closed
Based in Redding, 30 mi away
67/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 16 Google reviews, 16 Google reviews.
- 5.0★ from 16 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
Based in Arden-Arcade, 40 mi away
66/100CR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 23 Google reviews, 23 Google reviews.
- 5.0★ from 23 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
#21 Hammond Electric
Based in Live Oak, 26 mi away
66/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Electrician”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–3 PM · Sat–Sun closed
- Address
- 6043 Madden Ave, Live Oak, CA 95953
Also serving Williams
19 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 |
|---|---|---|
| ACIP Energy, LLC | 27 mi | |
| AMG Solar Solutions | 3.0★ (2) | 26 mi |
| Applegate Electric | 37 mi | |
| Brightedge Gutter & Solar Solutions | 5.0★ (1) | 13 mi |
| Feather River Aire, Inc. | 39 mi | |
| Gibson Energy Solutions LLC | 36 mi | |
| Golden Gate Solar Tech | 29 mi | |
| Helios Energy Solutions | 29 mi | |
| MEC Solar & Electric | 5.0★ (1) | 29 mi |
| North State Solar Cleaning, Inc | 5.0★ (2) | 24 mi |
| Power Placards | 38 mi | |
| Rancho Electric | 5.0★ (2) | 37 mi |
| Save On Solar | 39 mi | |
| SMARTGEN | 1.0★ (1) | 38 mi |
| Solagistics LLC | 3.0★ (2) | 28 mi |
| Solar Energy Services | 28 mi | |
| Way 2 Power | 19 mi | |
| Westhaven Solar HVAC | 5.0★ (1) | 29 mi |
| Zaniroli Solar Advantage | 5.0★ (1) | 35 mi |
How much do solar installers cost in Williams?
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 Williams solar installers
We scored 21 Williams 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 Williams 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 Williams: frequently asked questions
Who is the best solar installer in Williams?
By CR Score, the highest-ranked solar installer in Williams, CA is On Point Electric with a CR Score of 86/100. It has 4.6★ from 21 Google reviews. It is open 24/7. Opal Solar & Gutter Cleaning (#2) and Ace Carpet Cleaning & Window Washing (#3) follow. We ranked 21 solar installers on 8 factors, last updated October 22, 2026.
How many solar installers are there in Williams?
ContractorsRanked ranks 21 solar installers serving Williams, CA. Another 19 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which solar installers in Williams are open 24/7?
4 ranked solar installers in Williams post 24/7 hours. The highest-ranked are On Point Electric (#1), Ace Carpet Cleaning & Window Washing (#3) and Valley Air & Electric (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Williams work on weekends?
13 of 21 ranked solar installers post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are On Point Electric (#1), Opal Solar & Gutter Cleaning (#2) and Ace Carpet Cleaning & Window Washing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Williams?
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 Williams solar installers have?
The median Google rating among 21 rated solar installers in Williams is 5.0★, with a median of 17 reviews. Westhaven Power has the most, 248 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 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 Williams count in this ranking?
Yes, if they are within 40 mi of the Williams 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 Williams
- October 2026: CR Scores recalculated for 21 solar installers serving Williams.
More solar installers and Williams pages
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