651 electricians ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Thornton: Mister Sparky Of Denver, CR Score 65/100; 4.9★ from 2,857 Google reviews; open 24/7.
Best for emergencies (open 24/7): A&B Electric, posts 24/7 hours; ranked #2 of 651.
Most-reviewed: Applewood Plumbing Heating & Electric, 16,555 Google reviews at 4.8★, the most of 651 ranked; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
651 Thornton electricians are ranked here by CR Score, from ten published factors. 144 are open 24/7, 308 open Saturdays and 203 open Sundays, based on posted hours. The median Google rating is 4.9★ across 651 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mister Sparky Of Denver | 65 | 4.9★ (2,857) | Westminster, 4 mi away | 24/7 | Overall |
| 2 | A&B Electric | 64 | 5.0★ (995) | Aurora, 6 mi away | 24/7 | Emergencies |
| 3 | Just In Time Electrical & Plumbing | 63 | 4.9★ (1,027) | Thornton | 24/7 | — |
| 4 | Salzano Electric Denver | 62 | 5.0★ (369) | Denver, 9 mi away | 24/7 | — |
| 5 | JM Electric Inc. | 61 | 4.9★ (696) | Aurora, 13 mi away | 24/7 | — |
| 6 | Absolute Plumbing, Electrical, Heating & Air | 61 | 4.9★ (3,583) | Denver, 8 mi away | 24/7 | — |
| 7 | Golden West Plumbing, Heating, Air Conditioning, and Electrical | 60 | 4.8★ (3,635) | Denver, 7 mi away | 24/7 | — |
| 8 | Red Diamond Electric | 60 | 5.0★ (100) | Thornton | Sat · Sun | — |
| 9 | JM Electric Inc. | 60 | 5.0★ (154) | Aurora, 9 mi away | 24/7 | — |
| 10 | Awesome Electric Ltd | 60 | 4.9★ (61) | Federal Heights, 2 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
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 2,857 Google reviews, listed on Google as “Electrician”.
Based in Aurora, 6 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 995 Google reviews, listed on Google as “Electrician”.
Based in Thornton
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,027 Google reviews, listed on Google as “Electrician”.
Based in Denver, 9 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 369 Google reviews, listed on Google as “Electrician”.
Based in Aurora, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 696 Google reviews, listed on Google as “Electrician”.
Based in Denver, 8 mi away
Ranked #6 because of its Google rating and review volume: 4.9★ from 3,583 Google reviews.
Based in Denver, 7 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 3,635 Google reviews.
Based in Thornton
Ranked #8 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “Electrician”.
Based in Aurora, 9 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 154 Google reviews, listed on Google as “Electrician”.
Based in Federal Heights, 2 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Electrician”.
Based in Arvada, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 166 Google reviews, listed on Google as “Electrician”.
Based in Denver, 9 mi away
Ranked #12 because of its Google rating and review volume: 4.8★ from 16,555 Google reviews, the most in Thornton.
Based in Westminster, 4 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Electrician”.
Based in Golden, 14 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 12,904 Google reviews.
Based in Wheat Ridge, 9 mi away
Ranked #15 because of its Google rating and review volume: 4.8★ from 4,249 Google reviews.
Based in Denver, 9 mi away
Ranked #16 because of its Google rating and review volume: 4.8★ from 3,902 Google reviews.
Based in Denver, 4 mi away
Ranked #17 because of its Google rating and review volume: 4.7★ from 8,479 Google reviews.
Based in Denver, 11 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 168 Google reviews, listed on Google as “Electrician”.
Based in Westminster, 4 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “Electrician”.
Based in Denver, 3 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 565 Google reviews, listed on Google as “HVAC contractor”.
Based in Denver, 10 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 2,877 Google reviews.
Based in Commerce City, 6 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 119 Google reviews, listed on Google as “Electrician”.
Based in Englewood, 16 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 434 Google reviews, listed on Google as “Electrician”.
Based in Aurora, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Electrician”.
Based in Denver, 6 mi away
Ranked #25 because of its Google rating and review volume: 4.8★ from 1,215 Google reviews.
#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 651 ranked electricians here; the rest are on their profiles.
20 more electricians within 25 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 |
|---|---|---|
| All-Tech Electric | 5.0★ (2) | 10 mi |
| Another Electric Company | 5.0★ (2) | 10 mi |
| C & R Electrical Contractors | 3.0★ (2) | 1 mi |
| Chilcoat Electric | 3.0★ (2) | 7 mi |
| Danarchy Electric LLC | 5.0★ (2) | 8 mi |
| EJM Electric Services | 5.0★ (2) | 3 mi |
| Eleven Eleven Electric | 5.0★ (40) | 12 mi |
| Fantastic Electricians | 5.0★ (21) | 10 mi |
| Image Electric | 5.0★ (1) | In Thornton |
| JC Drain Solutions | 4.8★ (16) | In Thornton |
| Light in the Dark Electric | 5.0★ (22) | 4 mi |
| Lightning Horse Electric LLC | 5.0★ (15) | 8 mi |
| Lionheart Electrical | 5.0★ (2) | 5 mi |
| OneCore Electric | In Thornton | |
| ProWest Electric | 5.0★ (2) | 5 mi |
| Service Experts Heating & Air Conditioning | 4.7★ (1,928) | 5 mi |
| St Andrews Construction | In Thornton | |
| T2 Electric LLC | 5.0★ (2) | 10 mi |
| Thor Electric LLC | 5.0★ (1) | In Thornton |
| TORQ Electricians | 5.0★ (211) | 20 mi |
National price ranges in USD, not adjusted for Thornton. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Electrical panel upgrade | $518 | $1,347 | $2,193 | Per panel, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Colorado, Colorado State Electrical Board (DORA) licenses Electrical wiring and equipment work.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
We scored 651 Thornton electricians on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Thornton data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |