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Emergency Electricians in Waterloo, ON (2026)

Top 50 of 223 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 Waterloo: Aire One Heating & Cooling KW, 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 Waterloo at a glance

Top emergency electricians in Waterloo at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Aire One Heating & Cooling KW614.8★ (9,448)Kitchener, 5 km away24/7
2ZAK Electric615.0★ (64)Kitchener, 5 km away24/7
3MR SINGH ELECTRIC LTD. | Licensed Electrical Contractor | Kitchener, Ontario605.0★ (62)Kitchener, 9 km away24/7
4Mod Electrical Inc.605.0★ (100)Cambridge, 17 km away24/7
5Sieg Electric605.0★ (28)Kitchener, 5 km away24/7
6Inline Electric595.0★ (39)Kitchener, 9 km away24/7
7Reliance Heating, Air Conditioning & Plumbing594.7★ (2,268)Waterloo24/7
8Inline Electric594.9★ (56)Cambridge, 14 km away24/7
9Sekey Electrical Services Inc.595.0★ (35)Cambridge, 10 km away24/7
10365 Heating, Cooling, Plumbing & Electrical594.9★ (378)Kitchener, 8 km away24/7

Call an emergency electrician in Waterloo 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 Waterloo, 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 223 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.

  2. #2 ZAK Electric

    Based in Kitchener, 5 km away

    61/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Electrician”.

    • 5.0★ from 64 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    50 Ottawa Street S, Kitchener, ON N2G 3S7
    View profile for ZAK Electric(226) 222-3000

  4. #4 Mod Electrical Inc.

    Based in Cambridge, 17 km away

    60/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “Electrician”.

    • 5.0★ from 100 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    100 Sheldon Dr unit 35, Cambridge, ON N1R 7S7
    View profile for Mod Electrical Inc.(519) 707-3101

  5. #5 Sieg Electric

    Based in Kitchener, 5 km away

    60/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Electrician”.

    • 5.0★ from 28 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    547 Courtland Ave E, Kitchener, ON N2G 2W9
    View profile for Sieg Electric(226) 341-2421

  6. #6 Inline Electric

    Based in Kitchener, 9 km away

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Electrician”.

    • 5.0★ from 39 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1598 Fischer-Hallman Rd, Kitchener, ON N2R 0R7
    View profile for Inline Electric(519) 740-9999

  8. #8 Inline Electric

    Based in Cambridge, 14 km away

    59/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Electrician”.

    • 4.9★ from 56 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    594 Fountain St S, Cambridge, ON N3H 1J3
    View profile for Inline Electric(519) 740-9999

  15. #15 NEH Electrical Ltd.

    Based in Guelph, 18 km away

    58/100CR Score

    Ranked #15 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Electrical installation service”.

    • 5.0★ from 32 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    107 Westra Dr #17, Guelph, ON N1K 0A5
    View profile for NEH Electrical Ltd.(905) 703-8717

  18. #18 O'Connor Electric.

    Based in Kitchener, 7 km away

    57/100CR Score

    Ranked #18 because of its Google rating and trade focus: 3.4★ from 39 Google reviews, listed on Google as “Electrician”.

    • 3.4★ from 39 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9 Centennial Rd #2, Kitchener, ON N2B 3E9
    View profile for O'Connor Electric.(519) 745-8886

  23. #23 The Bold Group

    Based in Kitchener, 8 km away

    56/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Electrician”.

    • 4.0★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    125 Mcbrine Pl #7, Kitchener, ON N2R 1G4
    View profile for The Bold Group(519) 603-0107

  25. #25 Hayle Contracting

    Based in Huron East, 25 km away

    56/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Electrical installation service”.

    • 5.0★ from 18 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Hayle Contracting(519) 949-2975

Top 50 of 223 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 Waterloo, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Jais electrical services ltd565.0★ (10)21 km
27McGeoch Electric555.0★ (24)30 km
28TMM Electric Inc555.0★ (15)25 km
29A one pot lights555.0★ (15)26 km
30Comtrade Ltd553.4★ (5)14 km
31Charged Electric Services Ltd.554.0★ (9)18 km
32ERC.C Electric LTD555.0★ (26)35 km
33KB Electric Inc.555.0★ (4)19 km
34George's Electric554.3★ (11)25 km
35Inline Electric545.0★ (5)22 km
36Start Electric Inc.543.7★ (3)20 km
37TC Electrical Contractors Paris ON545.0★ (12)33 km
38Steel City Electric Corporation545.0★ (10)33 km
39Isaac Electrical534.9★ (12)38 km
40CJ's Express Plumbing & Electrical Ltd523.7★ (46)18 km
41Trade-Mark Industrial Inc514.0★ (54)14 km
42Roberts Onsite Inc.515.0★ (6)8 km
43Enercare513.8★ (466)24 km
44MYK Appliance Repairs and Installations495.0★ (6)16 km
45Victoria Electric Div. of Harold Stecho493.9★ (22)In Waterloo
46Bick Heating & Cooling Inc494.8★ (77)40 km
47Gosen Electric Limited485.0★ (6)In Waterloo
48Modern Tech Electric inc475.0★ (54)28 km
49Mendler Electric463.7★ (3)4 km
50Devine Construction Group465.0★ (9)16 km

How we ranked emergency electricians in Waterloo

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 Waterloo: questions

Which electricians in Waterloo are open 24/7?

25 on this list post 24/7 hours, including Aire One Heating & Cooling KW, ZAK Electric, MR SINGH ELECTRIC LTD. | Licensed Electrical Contractor | Kitchener, Ontario, Mod Electrical Inc. and Sieg Electric.

Who is ranked #1 for emergency electrical work in Waterloo, ON?

Aire One Heating & Cooling KW is #1, with a CR Score of 61 out of 100 on emergency weights.

How are emergency electricians in Waterloo 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 Waterloo

  1. October 2026: CR Scores recalculated for 223 electricians serving Waterloo.

More emergency and electrical work pages