Panel upgrades
100, 200, and 400-amp service work. Permitted, inspected, drawings filed with the city.
Licensed master electrician / NEC standards / Permits pulled
Powerup.
Wiredright.
From outlet to grid.
Residential, commercial, and industrial electrical work in Thornton. Tested. Tagged. Trusted. We file the drawings, we pull the permits, and we sign the work. Up-front pricing, no exceptions.
Bonded & insuredNEC certifiedBBB A+ ratedThornton, Colorado
Sheet 01 / Hero
- License
- Master · Bonded
- Coverage
- Thornton, Colorado
- Hours
- Mon-Sat
- After-hours
- On call
Feature any certifications you want here
04Services on filerev. 2026-05 / sheet 04 of 12
What we sign off on,
to spec, every time.
From a single GFCI to a 400-amp commercial service, every job is permitted, drawn, and inspected. Not a side-hustle. A trade.
On the bench
Master electrician on staff.
Every job led by a licensed master. Every drawing signed. Every permit on file.
Lighting installation
Recessed, pendant, landscape, low-voltage. Switch logic mapped, scene plans available.
Outlet & switch repair
GFCI, AFCI, dedicated runs. Replaced or added without tearing up the drywall.
EV charger installation
Level 2 dedicated 240V install. Load calculated, run clean, dialed in.
Generator installation
Standby and portable. Transfer switch, ATS, battery backup. Tested under load.
Electrical inspections
Pre-purchase, insurance, NEC compliance. Written report, photo log, prioritized fixes.
Emergency service
After-hours response. Master electrician on call. Quoted before we drive over.
Smart home wiring
Smart switches, low-voltage runs, whole-home rewires. Permits pulled, plans on file.
Not seeing what you need? Tell us what's on the drawing.
Submit a ticket05The crew on callsigned by master / on file
We sign the work.
We pull the permits.
We answer the phone.
Red Diamond Electric is the licensed electrical service homeowners, builders, and property managers in Thorntoncall when they want it done to spec, drawn up, signed off, and explained in plain English.
Our master electrician leads every project. Our trucks roll with the parts most jobs actually need. Our quotes hold. And when we open a service and find something the previous crew left undone, we'll show you the photos before we touch a wire.
Homeowners and small business owners needing licensed electrical work, often urgent.
Bonded, insured, signed
Every visit, every drawing. Permits pulled where required, no exceptions.
Master on staff
The person who shows up has the license to scope it, not just guess.
Up-front. On time.
We answer the phone. We tell you the price. Then we get on it.
Red Diamond Electric / Thornton, Colorado
06Four standardsheld on every job / no exceptions
Four standards. We hold all four
on every single ticket.
Licensed & insured
Every electrician on the truck is fully licensed, bonded, and insured for your protection.
After-hours response
Sparking outlet at 3am? We pick up. Real people. No call center halfway across the country.
Up-front pricing
You see the price before we open the wall. No surprise fees. The quote is the bill.
Master on staff
Our work is led by a master electrician. The hard problems get scoped, not bandaged.
07From the fieldrecent install / photo log
Drawn up. Pulled clean.
Inspected. Signed off.
Recent install / Thornton, Colorado
Service upgrade + EV charger
Permitted, inspected, drawings on file with the city.
08On the recordgoogle verified / homeowners
Real Google reviews
from real homeowners.
5/5
Based on 116 Google reviews
“Very pleased with the service and expertise Clay provided. He alerted me to issues I didn’t even realize I had without pushing repairs for those issues. Was very informative and provided clear pricing”
Evan Magee
a month ago
“I recommend This company for any Electrical work as this Man is great. I am 82 yrs old and I called and he came the same day and was very nice and got me all fixed up in no time and his prices was ve”
Alfrieda Shea
2 weeks ago
“I used Red Diamond Electric to replace 4 old smoke alarms. Clay was fantastic. He was prompt, efficient and reasonably priced. He brought my alarms up to new codes. I cannot praise him enough for”
Edward Lumsden
2 months ago
“A wonderful experience. Clay arrived early, but not too early, made friends with the pups, and added an outlet in a very short amount of time.The work was solid and done at 75% less cost than the big”
Brandon Minow
a month ago
Service area
Areas we service.
(e.g.)Example areas only. List any cities, towns or zones you actually serve here. You choose the coverage.
- City, State
- City, State
- City, State
- City, State
- City, State
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- City, State
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- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
09Submit a ticketfree quote / no obligation
Tell us what's on the drawing.
We'll scope it straight.
File a ticket and the master electrician on duty will read it before we call you back. No call center. No bait pricing. Just a real conversation about what your home or business needs.
- Reply within the hour during business hours
- Master electrician scopes every ticket
- Up-front pricing. The quote is the bill
After hours / on-call
(720) 456-9975
When the lights keep flickering
After hours?
You still call us.
We answer the phone. Master electrician on call. Trucks loaded for after-hours response across Thornton and the surrounding area.
Licensed master electrician / Bonded & insured / After-hours response
11Get on the schedulereach the office
One call gets a real
licensed electrician.
When we're open
- Mon-Sun 9am-6pm
Send us a note
Not an emergency? We'll get back to you within one business day.