Top 50 of 592 electricians, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 electricians on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency electrical work in Castro Valley: Service Champions, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Service Champions | 63 | 4.9★ (1,331) | Livermore, 16 mi away | 24/7 |
| 2 | Go Brilliant Electric | 61 | 4.8★ (93) | Union City, 6 mi away | 24/7 |
| 3 | Five Or Free Electrical Heating & Air Solutions | 60 | 4.8★ (219) | Oakland, 13 mi away | 24/7 |
| 4 | Cisco Electric | 60 | 5.0★ (17) | Ashland, 2 mi away | 24/7 |
| 5 | Fuse Electrical | 60 | 4.9★ (82) | Fremont, 10 mi away | 24/7 |
| 6 | S&B Electric | 59 | 4.9★ (109) | Alamo, 13 mi away | 24/7 |
| 7 | Mr. Electric of Concord CA | 59 | 4.9★ (241) | Concord, 18 mi away | 24/7 |
| 8 | Art Electrical Services And More | 59 | 5.0★ (334) | San Francisco, 22 mi away | 24/7 |
| 9 | CA Electrical Group 24/7 | 59 | 4.8★ (492) | San Jose, 23 mi away | 24/7 |
| 10 | Best Electric Systems Danville | 59 | 5.0★ (48) | Danville, 12 mi away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
Open 24/7 · 4.9 from 1,331 Google reviews
Open 24/7 · 4.8 from 93 Google reviews
#3Five Or Free Electrical Heating & Air Solutions
Open 24/7 · 4.8 from 219 Google reviews
Open 24/7 · 5.0 from 17 Google reviews
Open 24/7 · 4.9 from 82 Google reviews
Open 24/7 · 4.9 from 109 Google reviews
Open 24/7 · 4.9 from 241 Google reviews
#8Art Electrical Services And More
Open 24/7 · 5.0 from 334 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 592 is on the electricians page.
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: 4.9★ from 1,331 Google reviews, listed on Google as “Electrician”.
Based in Union City, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 93 Google reviews, listed on Google as “Electrician”.
Based in Oakland, 13 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 219 Google reviews, listed on Google as “Electrician”.
Based in Ashland, 2 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Electrician”.
Based in Fremont, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “Electrician”.
Based in Alamo, 13 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 109 Google reviews, listed on Google as “Electrician”.
Based in Concord, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 241 Google reviews, listed on Google as “Electrician”.
Based in San Francisco, 22 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 334 Google reviews, listed on Google as “Electrician”.
Based in San Jose, 23 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 492 Google reviews, listed on Google as “Electrician”.
Based in Danville, 12 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 48 Google reviews, listed on Google as “Electrician”.
Based in Alameda, 4 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Electrician”.
Based in Menlo Park, 18 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 128 Google reviews, listed on Google as “Electrician”.
Based in Berkeley, 10 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Electrician”.
Based in Livermore, 17 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Electrician”.
Based in Fremont, 12 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Electrician”.
Based in Pleasanton, 9 mi away
Ranked #16 because of its Google rating and review volume: 4.8★ from 2,337 Google reviews.
Based in San Francisco, 17 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Electrician”.
Based in Oakland, 10 mi away
Ranked #18 because of its Google rating and trade focus: 4.6★ from 38 Google reviews, listed on Google as “Electrician”.
Based in Livermore, 16 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 4,721 Google reviews.
Based in Antioch, 22 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 171 Google reviews, listed on Google as “Electrician”.
Based in Alamo, 9 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Electrician”.
Based in Dublin, 9 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “Electrician”.
Based in Burlingame, 16 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 106 Google reviews, listed on Google as “Electrical installation service”.
Based in Alameda, 3 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Electrician”.
Based in Concord, 18 mi away
Ranked #25 because of its Google rating and review volume: 4.9★ from 1,255 Google reviews.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 electricians are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
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 |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |