From the historic charm of Downtown Castle Rock to the scenic neighborhoods near Philip S. Miller Park and The Meadows, Harmony Electric proudly serves homes and businesses throughout this vibrant Colorado community.
Whether you need expert hot tub wiring, a new EV charger installed, or a full electrical panel upgrade, our team brings dependable, high-quality service to every job. Castle Rock’s blend of modern living and natural beauty deserves electrical work that’s just as reliable—and that’s exactly what we deliver. Backed by years of experience and a reputation for honest work, we’re the trusted electrician Castle Rock residents count on for:
“Powering homes and businesses with safety, efficiency, and expertise—because every connection matters.”
Our team adheres to all safety and code compliance requirements.
We arrive on time and complete projects efficiently.
Proudly serving the Castle Rock community.
As a proud family-owned and operated business, we are committed to serving the Denver community with dedication and care.
5-star reviews from satisfied homeowners and businesses.
The cost varies depending on the job, but we offer free estimates to provide transparent pricing.
Yes! We handle urgent electrical repairs to keep your home and business safe.
Absolutely! Harmony Electric is a fully licensed and insured electrical contractor in Castle Rock.
Jimmy Li2025-02-11Trustindex verifies that the original source of the review is Google. Randy did amazing work running what was needed for our new hot tub. Had several concerns about our project prior to being referred to Randy and his team, but afterwards, Randy’s knowledge, experience and expertise helped alleviate any concerns we had. The work provide was exceptional and could not be more pleased with how everything turned out. If you have any electrical needs, Randy and his team should be your first call. Mike Vb2025-02-06Trustindex verifies that the original source of the review is Google. Lost all power to Garage. Randy with Harmony Electric Found and fixed the the problem. Prompt, Professional Pro's at a fair price !!! Robert Thompson2025-02-02Trustindex verifies that the original source of the review is Google. Harmony electric has now successfully installed the electrical for my hot tub when we bought it and when we moved it to our new home. Both times I was extremely impressed with Pricing: Randy undercut multiple offers by a long shot with superior service. I have seen other hot tub installs that cut corners, not these guys. Upfront billing, no surprises, no upcharging. Communication: Randy explained the whole process with both houses and what was needed from an electrical standpoint. Reliability: I know I can count on Harmony and they will be there when we need them. For example, our family was ill the day of the electric install so Blake came out to hook up the tub the day it was delivered to make sure there was no freezing or issues with it sitting unplugged. Product/Service: Harmony uses superior metal/waterproof piping all along the house over contours and locked into place. Other installs I have seen use flimsy plastic or don’t cover the wire leading up to the tub. That’s a no go and a hazard to my family I don’t want to risk. Follow-Through: Blake showed me through the whole install when it was finished and even buttoned up my old power box that had lost its screws. Stop looking and go with Harmony for any of your electric needs! Jim Minton2025-01-31Trustindex verifies that the original source of the review is Google. I contacted Harmony Electric in the evening using the scheduling feature on their website. I was requesting a repair to the service panel wiring for the air conditioner. Randy called me promptly the following morning with a very reasonable quote and a commitment to perform the work that afternoon. Job well done at a great price. Problem solved thanks to Harmony Electric! Ryan Hawes2025-01-29Trustindex verifies that the original source of the review is Google. Harmony Electric was recommended by Colorado Custom Spas to install our circuit for the spa. In addition to the spa, they moved breakers to the subpanel to make room for the hot tub breaker and also ran a new circuit for the shed. They did a great job, had it all done in half a day and were great to work with right from getting the quote, scheduling the day of the spa delivery and getting the job done. Tammy L2025-01-17Trustindex verifies that the original source of the review is Google. We recently used Harmony Electric for electrical issues in our garage. Randy arrived promptly to troubleshoot issues and completed the diagnosis efficiently ensuring our that our electrical issues were resolved. We appreciate his honest work & professionalism. We look forward to utilizing Harmony Electric again. Greg Meyer2025-01-16Trustindex verifies that the original source of the review is Google. I can’t recommend Randy and Harmony Electric enough. Randy came recommended from Colorado Custom Spas to help install our new hot tub, and he delivered. He is responsive, prompt, knowledgeable, and has fair pricing; everything you could hope for in a contractor. He braved bad weather on the day of our delivery in order to ensure our hot tub set up went smoothly and got the job done. I plan to use him for all future electrical needs. Ken Martinez2025-01-08Trustindex verifies that the original source of the review is Google. We called around for quotes to get help with main panel. When we called Randy, he helped us troubleshoot and it worked! Saved us $250+! Who does that? Would highly recommend! mark floyd2025-01-06Trustindex verifies that the original source of the review is Google. Harmony Electric did a great job on installing my 60amp service to my hot tub. I would recommend for anyone needing electrical serviceVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Founded by Master Electrician Randy Harmuth, Harmony Electric brings over 20 years of trusted experience to every job.