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16 Years
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Trusted Energy Audits and Solar Solutions in Denver, CO
REenergizeCO is a Colorado-based energy efficiency company specializing in whole-home solutions that integrate insulation, HVAC, solar energy, and advanced energy audits. With over 15 years of certified experience, our locally owned business delivers in-house services without subcontractors, ensuring consistent quality and personalized attention. Our team of experts holds industry-leading accreditations, including LEED AP, BPI Certification, and ENERGY STAR Partnership, reflecting our commitment to sustainable building practices. We have earned over 910 five-star reviews by prioritizing transparency, rebate maximization, and durable results that enhance home comfort and value. Our proprietary process combines blower door testing, infrared imaging, and customized retrofit strategies to address each home's unique energy profile.

As Xcel Energy's Top Rebate-Producing Trade Partner since 2013, we help homeowners access federal, state, and utility-specific incentives. Our customer-centric approach includes detailed before-and-after documentation, responsive post-installation support, and honest recommendations that sometimes advise against unnecessary work. This ethical stance has fostered community trust, with 97% of clients reporting measurable energy savings and improved indoor comfort. Our technicians undergo continuous training in emerging technologies like battery storage and electric vehicle charging infrastructure, maintaining our position at the forefront of residential energy innovation.
Services
Energy Audits Insulation Solar Installation HVAC Upgrades Air Sealing Crawl Space Insulation Spray Foam Insulation Battery Storage EV Charging Full Electrification
Details
  • Year established: 2010
Highlights and features
  • 15+ years of certified energy efficiency experience in Colorado
  • In-house team of LEED and BPI-certified professionals
  • 910+ verified five-star reviews from Colorado homeowners
  • Maximize rebates through Xcel Energy's Top Producer status
  • Transparent pricing with detailed before-and-after documentation
Associations and certifications
  • LEED AP
  • BPI Certified Company
  • ENERGY STAR Partner
What people say
Super responsive Fantastic job No sales pressure Dramatic results Top notch outfit
Services
Home Energy Audit
Our comprehensive energy audit uses blower door testing and thermal imaging to identify efficiency gaps. We inspect insulation levels, HVAC performance, and air leakage points to create customized improvement plans. Each audit includes a detailed report with prioritized recommendations and rebate eligibility information to help Colorado homeowners make cost-effective decisions.
Spray Foam Insulation
We install closed-cell spray foam with R-value of R6/inch to create continuous thermal barriers. This solution prevents air infiltration while resisting moisture in attics, basements, and crawl spaces. Proper application reduces energy loss through structural gaps, maintaining consistent indoor temperatures year-round while improving HVAC efficiency.
Solar Installation
Our solar solutions include grid-tied photovoltaic systems with battery storage options. We design installations to maximize energy production based on roof orientation and household consumption patterns. Systems qualify for 30% federal tax credits and utility rebates, with monitoring capabilities to track performance and savings over time.
Heat Pump Systems
We install high-efficiency heat pumps that provide both heating and cooling through electric heat exchange. These systems work synergistically with solar installations to create net-zero energy homes. Our technicians specialize in ductless mini-split systems for targeted climate control in specific home zones.
Full Electrification
Our electrification process replaces gas-powered systems with electric alternatives for heating, water heating, and cooking. When combined with solar and battery storage, this creates energy-independent homes that eliminate fossil fuel dependence while benefiting from stable electricity rates and renewable energy incentives.
Questions
What energy efficiency services do you offer for Colorado homes?
We provide comprehensive home energy audits, insulation upgrades, solar panel installations, HVAC system replacements, and full home electrification solutions tailored to Colorado's climate.
How can I qualify for energy rebates in Colorado?
As Xcel Energy's Top Rebate Producer, we help clients access federal tax credits, state incentives, and utility-specific programs for energy audits, insulation, and solar installations.
Do you handle both residential and commercial projects?
We specialize exclusively in residential energy solutions for single-family homes, townhouses, and small multi-family properties across Colorado.
What makes your energy audit different from competitors?
Our audit combines blower door testing, infrared imaging, and combustion safety checks with personalized recommendations and rebate optimization for comprehensive home performance analysis.
Can you help with financing energy efficiency upgrades?
Yes, we offer access to the RENU Loan Program and other financing options for Colorado homeowners seeking low-interest, no-money-down solutions for energy improvements.
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Reviews (6)
Alice Miller
Nov 03, 2021 Report
REenergizeCo brought our attic insulation up to new building code and increase our home's energy efficiency. They provided excellent communication throughout the process, arrived on time and completed the work within the timeframe they gave us. The crew was respectful and pleasant to work with in our home, and went above and beyond in cleaning up afterwords.
Connor Rumsey
Aug 03, 2021 Report
110% the best interaction I have ever had with contractors. Nick Simone, who did our energy audit and went over suggestions with us, was great! Answered all our questions, helped us understand where our home stood and was super communicative through the entire process. He gave great suggestions on what projects would get us the most return and we always knew what to expect. The team that came to replace our insulation and perform air sealing was astounding as well. Also very communicative, we always knew what was going on. Left our home as clean as they found it. It is so convenient that ReEnergize
Kierce May
Jul 14, 2021 Report
REenergize did a wonderful job assessing our home for energy efficiency needs and ultimately we hired them to install insulation in our home. From the day they did their estimate to the time they finished the job, they were upfront, communicative, and answered any questions we had. I appreciated the before and after photos so I understood the work that needed to be done and how they would complete the work. They were timely, professional and clean and did thorough work. No sales pressures or tacticsjust good, honest assessment and information. Nick kept us informed every step of the way and
Cody Sehl
May 19, 2021 Report
We did a home energy audit with REnergizeCO and I think they did a great job. The person that came over and did the audit was knowledgeable and didn't mind us following him around as he did his work. Moreover, the summary they produced was easy to read and had good suggestions on how to improve the efficiency of our home. We're definitely going to work with them on getting new insulation installed, air sealing, etc.
Marla Schulz
Apr 22, 2021 Report
Had a great first experience with Alex during my energy audit. Super professional and knowledgeable. The crew that came out later was quick, thorough, left my home clean, and much more efficient than it was before. I really feel like I got an incredible value, they were responsive to my needs and I've already felt a difference with the temperature regulation in my home.
Scott K.
Mar 28, 2021 Report
The initial sales visit was professional, and thorough without wasting time. The visit to add spray insulation into my exterior walls was great. The team ran into some problems that were outside of their control and handled them extremely well. The spray makes a mess but they covered beforehand, and then cleaned up very well afterwards.
Re cost, I obtained seven estimates. Only two came in cheaper, and I those estimators did not leave me with a good level of confidence that they would have quality work.