Serving Longmont, CO and surrounding areas
Approved
In business since 1992
Free estimates
Credit card accepted
"Great guy to work with. On-time, expedient and precise. Installed electrical in a structured wiring panel for my home and did a great job."
+1
Serving Longmont, CO and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"They did an awesome job hanging two lights for me, very friendly."
+7
Serving Longmont, CO and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Installation of two monorail light systems, two ceiling fans, and a flood light went very smoothly. Electrician took extra care to make sure fixtures were installed correctly. Communication throughout process was great. Job was competitively priced."
+2
Serving Longmont, CO and surrounding areas
Approved
In business since 1979
Free estimates
Customers say: Quality work
"They were fast, efficient and very professional. They came the same day that I called. I had a difficult task to rewire a 99 year old fixture which they did and things are working great."
Serving Longmont, CO and surrounding areas
Approved
In business since 2010
Free estimates
Warranties offered
"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"
+11
Serving Longmont, CO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Avery installed two ceiling fans in my older home that I was updating. He was very efficient and knowledgeable in his work. I would definitely recommend him and will use him for any future electrical needs!"
+12
Serving Longmont, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Installation of our new range was seamless after Table Mountain Electric replaced the circuit. Pricing was fair, transparent, and understandable. We would recommend them for electrical needs."
+60
Serving Longmont, CO and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"Definitely recommend Trevor with Professional Power. Knowledgeable, on time and got the job done"
+3
Serving Longmont, CO and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"On-time and did additional work we requested--fixed a plug that was improperly wired."
Serving Longmont, CO and surrounding areas
Approved
In business since 1991
Free estimates
Offers commercial services
"Highest recommendation. Adam provided very timely communication, answered all of my questions and was very easy to work with. The job was done very professionally and completed within the time frames as promised. Adam and Kenny (the owner) provided excellent customer service. Very competitive and fair pricing. Great experience and I will definitely use them again in the future. They replaced the master electrical panel, installed new lighting in the basement and did additional rewiring."
From average costs to expert advice, get all the answers you need to get your job done.
Budget for the cost to replace a light switch based on factors such as switch type, project complexity, hiring a professional electrician, and more.
Estimate the cost to rewire a house based on the key factors. Our guide covers different wire types, permits, and ways to save on electrical system upgrades.
Unsure who can fix a generator? Learn whether to hire a generator technician or electrician and what affects repair costs—start your search now.
Wondering who can install recessed lighting? See who to hire, other pro options, steps, and costs to plan your project confidently.
Who can run ethernet cable through walls? Learn whether to hire an electrician or general contractor, what to expect, and how pros get it done.
Learn who to call for electrical problems—electrician or power company—and when to get help. See pro steps, safety tips, and hiring guidance.