Whether you’re setting up a new office, retail shop, or warehouse, Harmony Electric provides dependable, code-compliant electrical tenant build-out services in Denver that match your goals, budget, and timeline.
We make sure your space is powered safely and efficiently with the right electrical setup.
From the initial consultation to final inspections, our goal is to provide seamless service and long-lasting electrical solutions for your build-out.
Tenant build-outs — also called tenant improvements (TIs) — need electricians who can deliver custom solutions while following all safety rules. Harmony Electric has years of experience working with business owners, contractors, and property managers to provide top-notch commercial tenant build-out electrical services in Denver and nearby cities like Aurora, Castle Rock, Castle Pines, Centennial, Littleton, and Parker.
We understand that each business has unique needs. A retail store might need specialty lighting and extra outlets, while an office might require extensive data cabling and energy-efficient fixtures. Whether you’re working with an empty shell or updating an older space, we handle everything from panel upgrades and lighting to data wiring and dedicated circuits — all designed to fit your space and workflow.
We also help ensure your build-out supports long-term functionality and growth. Our experienced electricians plan for current load demands and future flexibility, so your systems can grow with your business. If you’re still evaluating whether a build-out is the right move, read our blog on When to Consider Electrical Tenant Build-Outs for Commercial Properties for helpful guidance.
No matter the size or scope of the job, we tailor every aspect of our work to meet your timeline and specific business requirements. We coordinate with other trades, ensure everything is up to code, and keep your space running smooth and safe.
We know commercial projects move fast. That’s why we stay in close contact with your general contractor or project lead to keep everything on track and on budget. Clear communication and on-site responsiveness make the difference between delays and a successful finish.
Serving Denver since 2005
We specialize in tenant improvement projects
We plan ahead to avoid delays
We follow all safety and building rules
We keep your project moving smoothly
As experienced tenant build-out contractors in Denver, we understand what it takes to get commercial spaces ready for business. Whether you’re creating a welcoming storefront, a productive office, or a high-capacity warehouse, we bring the tools and expertise to deliver results you can count on. We take pride in building long-term relationships with clients who know they can rely on us for quality workmanship and dependable service.
We offer electrical commercial TI services in Denver and throughout the metro area, including:
Each of these communities has unique permitting processes and inspection standards. We’re familiar with the requirements in each city and can help guide your project through approvals with minimal hassle.
If you’re planning a new space or updating your current one, Harmony Electric is ready to help. We’ll review your plans, walk your site, and create a tailored scope of work that meets your business needs. Reach out today to talk with our team and take the next step.
Whether you need a few switches and outlets installed or a full home wiring job, we can handle it all.
We are hot tub installation experts, ensuring the proper wiring for a safe and reliable setup.
Not sure what’s wrong? Our expert troubleshooting services have you covered.
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
The cost of EV charger installation varies based on your home’s electrical system and the location of the charger. Harmony Electric offers free consultations to provide an accurate estimate tailored to your needs.
Yes, garages are the most common location for EV chargers. We ensure proper wiring, mounting, and safety measures for optimal performance.
We install all major EV charger brands, including Tesla, ChargePoint, JuiceBox, and more.
Founded by Master Electrician Randy Harmuth, Harmony Electric brings over 20 years of trusted experience to every job.