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24 contractors listed · 8 in Thornton · 5 open 24/7 · 12 open weekends · 22 rated 4.5+
Data verified October 28, 2026
The 24 contractors listed for Thornton, CO cover panels, circuits, lighting and charger installs. What appears under each one about licensing, hours and the work it advertises is taken from that business's own site, with ratings and comments from public reviews.
Of the 24 contractors we list here, 8 are in Thornton itself and 16 come from towns including Denver (3, 11 mi), Arvada (2, 13 mi) and Wheat Ridge (2, 13 mi). The contractors on this page are rated from 4.0 to 5.0 across 23,392 reviews; 19 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), responsiveness (83%) and quality (83%). 5 are open around the clock; 12 are open on Saturdays and 11 on Sundays. The services the contractors on this page list most often on their websites are outdoor lighting (3), ceiling fans (2), hot tub wiring (2) and residential electrician (2). 9 show a license on their websites; 1 lists staff certifications (NATE) and 11 have a BBB rating of A or A+. Domain records put 15 websites of the contractors on this page at ten or more years old; the oldest dates from 1999. 6 offer emergency call-outs; 10 offer financing or payment plans; 11 give free estimates; 8 are family- or locally-owned and 10 list coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Free estimates are advertised by 11 of the 24 contractors here. That works for scoping a defined job such as a panel change or a rewire. Fault finding is different work: tracing an intermittent problem takes hours on site, and asking for that free gets you a guess.
