⚡ Official Rankings
10 Best Electricians in Thornton, CO (August 2026)
We compared 10 electricians serving Thornton and Adams County, Colorado, and ranked the top providers by verified reviews, ratings, and local reputation — 4,639 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Red Diamond Electric. Updated for August 2026.
- Electricians ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 4,639
- Area codes
- 720, 303
#1
Red Diamond Electric
⭐ 5.0 · 117 reviews
11670 Milwaukee St, Thornton, CO 80233
#2
Mister Sparky Of Denver
⭐ 4.9 · 3031 reviews
1020 W 124th Ave #700, Westminster, CO 80234
#3
Just In Time Electrical & Plumbing
⭐ 4.9 · 1206 reviews
2200 E 104th Ave #205, Thornton, CO 80233
#4
Grounded Electric, LLC
⭐ 5.0 · 53 reviews
3590 E 122nd Ave, Thornton, CO 80241
#5
#6
Awesome Electric
⭐ 4.9 · 66 reviews
2510 W 99th Pl, Federal Heights, CO 80260
#7
Thornton Electric
⭐ 5.0 · 25 reviews
12061 Pennsylvania St suite a-105, Thornton, CO 80241
#8
#9
Denver Mechanical Contracting
⭐ 5.0 · 11 reviews
871 Thornton Pkwy Suite 202, Denver, CO 80229
#10