247 electricians ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waterloo: Aire One Heating & Cooling KW, CR Score 88/100; 4.8★ from 9,448 Google reviews; open 24/7.
Best for emergencies (open 24/7): MR SINGH ELECTRIC LTD. | Licensed Electrical Contractor | Kitchener, Ontario, posts 24/7 hours; ranked #2 of 247.
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 9,230 Google reviews at 4.7★, the most of 247 ranked after Aire One Heating & Cooling KW; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
247 Waterloo electricians are ranked here by CR Score, from 8 published factors. 46 are open 24/7, 101 open Saturdays and 69 open Sundays, based on posted hours. The median Google rating is 5.0★ across 247 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Aire One Heating & Cooling KW | 88 | 4.8★ (9,448) | Kitchener, 5 km away | 24/7 | Overall |
| 2 | MR SINGH ELECTRIC LTD. | Licensed Electrical Contractor | Kitchener, Ontario | 87 | 5.0★ (62) | Kitchener, 9 km away | 24/7 | Emergencies |
| 3 | Mod Electrical Inc. | 87 | 5.0★ (100) | Cambridge, 17 km away | 24/7 | — |
| 4 | 365 Heating, Cooling, Plumbing & Electrical | 86 | 4.9★ (378) | Kitchener, 8 km away | 24/7 | — |
| 5 | Inline Electric | 86 | 5.0★ (39) | Kitchener, 9 km away | 24/7 | — |
| 6 | Sieg Electric | 86 | 5.0★ (28) | Kitchener, 5 km away | 24/7 | — |
| 7 | Reliance Heating, Air Conditioning & Plumbing | 86 | 4.7★ (2,268) | Waterloo | 24/7 | — |
| 8 | Inline Electric | 86 | 4.9★ (56) | Cambridge, 14 km away | 24/7 | — |
| 9 | Potlight Master | 85 | 5.0★ (186) | Cambridge, 34 km away | 24/7 | — |
| 10 | Reliance Heating, Air Conditioning & Plumbing | 85 | 4.7★ (9,230) | Cambridge, 19 km away | 24/7 | Most reviews |
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.
Ranked #1 because of its Google rating and review volume: 4.8★ from 9,448 Google reviews, the most Google reviews on this list (9,448).
Based in Kitchener, 9 km away
Ranked #2 because of its Google rating and availability: 5.0★ from 62 Google reviews, open 24/7.
Based in Cambridge, 17 km away
Ranked #3 because of its Google rating and availability: 5.0★ from 100 Google reviews, open 24/7.
Based in Kitchener, 8 km away
Ranked #4 because of its Google rating and availability: 4.9★ from 378 Google reviews, open 24/7.
Based in Kitchener, 9 km away
Ranked #5 because of its Google rating and availability: 5.0★ from 39 Google reviews, open 24/7.
Based in Kitchener, 5 km away
Ranked #6 because of its Google rating and availability: 5.0★ from 28 Google reviews, open 24/7.
Based in Waterloo
Ranked #7 because of its Google rating and availability: 4.7★ from 2,268 Google reviews, open 24/7.
Based in Cambridge, 14 km away
Ranked #8 because of its Google rating and availability: 4.9★ from 56 Google reviews, open 24/7.
Based in Cambridge, 34 km away
Ranked #9 because of its Google rating and availability: 5.0★ from 186 Google reviews, open 24/7.
Based in Cambridge, 19 km away
Ranked #10 because of its Google rating and availability: 4.7★ from 9,230 Google reviews, open 24/7.
Based in Kitchener, 5 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Electrician”.
Based in Cambridge, 18 km away
Ranked #12 because of its Google rating and availability: 4.9★ from 2,155 Google reviews, open 24/7.
Based in Cambridge, 12 km away
Ranked #13 because of its Google rating and availability: 4.8★ from 1,534 Google reviews, open 24/7.
Based in Guelph, 18 km away
Ranked #14 because of its Google rating and availability: 5.0★ from 32 Google reviews, open 24/7.
Based in Kitchener, 11 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “Electrical installation service”.
Based in Stratford, 31 km away
Ranked #16 because of its Google rating and availability: 4.9★ from 60 Google reviews, open 24/7.
Based in Guelph, 27 km away
Ranked #17 because of its Google rating and availability: 5.0★ from 33 Google reviews, open 24/7.
Based in Guelph, 23 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 115 Google reviews, listed on Google as “Electrician”.
Based in Waterloo
Ranked #19 because of its Google rating and availability: 3.7★ from 6 Google reviews, open 24/7.
Based in Cambridge, 10 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Electrician”.
Based in Huron East, 10 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Electrician”.
Based in Cambridge, 5 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Electrician”.
Based in Norfolk County, 10 km away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Electrical installation service”.
Based in Cambridge, 12 km away
Ranked #24 because of its Google rating and availability: 4.6★ from 1,022 Google reviews, open 24/7.
Based in Huron East, 25 km away
Ranked #25 because of its Google rating and availability: 5.0★ from 18 Google reviews, open 24/7.
#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 247 ranked electricians here; the rest are on their profiles.
20 more electricians within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| AZ Electrical & Automation | 5.0★ (2) | 10 km |
| Bick Heating & Cooling Inc | 4.8★ (77) | 40 km |
| Emir Electric Inc | 5.0★ (1) | In Waterloo |
| Enercare | 3.8★ (466) | 24 km |
| Force Electrical Solutions LTD | In Waterloo | |
| Gary Kraemer Electric Ltd. | In Waterloo | |
| George's Electric | 4.3★ (11) | 25 km |
| Gies Complete Auto Care | 5.0★ (2) | In Waterloo |
| Ibbotson Electric Limited Ecra/Esa 7001624 | In Waterloo | |
| Jais electrical services ltd | 5.0★ (10) | 21 km |
| Job Inc | 5.0★ (2) | 2 km |
| JTG Electric Ltd | 5.0★ (2) | 3 km |
| Ken Snider Electric Ltd | 5.0★ (1) | In Waterloo |
| KW Handyman Pros | 5.0★ (2) | 10 km |
| Roberts Onsite Inc. | 5.0★ (6) | 8 km |
| SC Simpson Electric | In Waterloo | |
| TDS Technologies (Ont) Inc | 5.0★ (1) | In Waterloo |
| Tek Electric Ltd | In Waterloo | |
| Trade-Mark Industrial Inc | 4.0★ (54) | 14 km |
| westmount electrical services co | In Waterloo |
US national ranges converted to CAD, not adjusted for Waterloo. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Electrical panel upgrade | CA$730 | CA$1,890 | CA$3,080 | Per panel, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 247 Waterloo electricians 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 Waterloo 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 |