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Emergency Electricians in Derby, CT (2026)

Top 50 of 398 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.

Sparks, smoke or a burning smell: leave the room and call 911. Never touch a fallen power line; call your utility.

The short answer

  1. 1

    #1 for emergency electrical work in Derby: Mister Sparky®, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency electricians in Derby at a glance

Top emergency electricians in Derby at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Mister Sparky®624.7★ (83)Shelton, 4 mi away24/7
2Lagasse Electric LLC615.0★ (53)Milford, 8 mi away24/7
3The Generator Guys, LLC614.9★ (95)Southbury, 11 mi away24/7
4Macos Electric LLC614.9★ (35)Shelton, 5 mi away24/7
5Pagliaro's PowerSource605.0★ (18)Shelton, 2 mi away24/7
6QC Electric605.0★ (261)Wallingford Center, 21 mi away24/7
7POWERHOUSE ELECTRIC CT605.0★ (237)Darien, 21 mi away24/7
8S&E Tree Service LLC605.0★ (34)Stratford, 7 mi away24/7
9Valley Electrical Service LLC605.0★ (18)Ansonia, 4 mi away24/7
10Accurate Electrical Contractors605.0★ (619)Prospect, 14 mi away24/7

Call an emergency electrician in Derby now

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.

The 50 emergency electricians in Derby, ranked

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 398 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.

  1. Ranked #1 in Derby

    #1 Mister Sparky®

    Based in Shelton, 4 mi away

    62/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.7★ from 83 Google reviews, listed on Google as “Electrician”.

    • 4.7★ from 83 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5 Commerce Dr #5, Shelton, CT 06484
    View profile for Mister Sparky®(203) 292-0776

  4. #4 Macos Electric LLC

    Based in Shelton, 5 mi away

    61/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Electrical installation service”.

    • 4.9★ from 35 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    CT-108, Shelton, CT 06484
    View profile for Macos Electric LLC(203) 685-0190

  6. #6 QC Electric

    Based in Wallingford Center, 21 mi away

    60/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 261 Google reviews, listed on Google as “Electrician”.

    • 5.0★ from 261 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for QC Electric(860) 218-8008

  12. #12 Santella Electric

    Based in New Canaan, 24 mi away

    59/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 247 Google reviews, listed on Google as “Electrician”.

    • 4.9★ from 247 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4 Cross St, New Canaan, CT 06840
    View profile for Santella Electric(203) 966-9595

  24. #24 Hunt Electric, LLC

    Based in West Haven, 8 mi away

    58/100CR Score

    Ranked #24 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
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Woodmont Rd, West Haven, CT 06516
    View profile for Hunt Electric, LLC(203) 306-6926

Top 50 of 398 electricians by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

electricians in Derby, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Rayzor Electric LLC584.5★ (8)6 mi
27AV Electric LLC575.0★ (31)17 mi
28CF Electrical Service, LLC575.0★ (17)13 mi
29Joey G Electric llc575.0★ (15)12 mi
30Viscuso Electric & Son574.2★ (19)11 mi
31Bright Electrical Contractors LLC575.0★ (25)18 mi
32Wired Up Solutions LLC575.0★ (21)17 mi
33Jamm Electrical Service575.0★ (8)11 mi
34Kings electrical contracting575.0★ (4)8 mi
35L&M Electric, LLC564.2★ (21)16 mi
36O'Connell's Electrical Contractors565.0★ (28)21 mi
37Nyerick Electric564.9★ (28)21 mi
38Donohue Electric565.0★ (5)11 mi
39Apuzzo Electric Inc564.0★ (4)8 mi
40Rob's Electric LLC565.0★ (21)20 mi
41Demo Electrical Services565.0★ (8)14 mi
42CT Home Generator Systems564.6★ (32)21 mi
43AWB Electrical Services LLC564.2★ (42)21 mi
44PURE ENERGY LLC564.8★ (23)21 mi
45Stevenson Electrical Contractor564.7★ (17)19 mi
46Aceto Electric LLC555.0★ (12)18 mi
47Neves Electric LLC555.0★ (6)14 mi
48Ehrhard Electric554.4★ (7)14 mi
49Edison Electric554.3★ (6)13 mi
50G C Electric Inc553.9★ (21)18 mi

How we ranked emergency electricians in Derby

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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency electricians in Derby: questions

Which electricians in Derby are open 24/7?

25 on this list post 24/7 hours, including Mister Sparky®, Lagasse Electric LLC, The Generator Guys, LLC, Macos Electric LLC and Pagliaro's PowerSource.

Who is ranked #1 for emergency electrical work in Derby, CT?

Mister Sparky® is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency electricians in Derby ranked?

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.

What should I do before the electrician arrives?

Sparks, smoke or a burning smell: leave the room and call 911. Never touch a fallen power line; call your utility.

How many emergency electricians here list a phone number?

24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Derby

  1. October 2026: CR Scores recalculated for 398 electricians serving Derby.
  2. October 2026: 6 duplicate listings merged.

More emergency and electrical work pages