Do you need to meet the requirements of IECC (International Energy Conservation Code), ASHRAE Standard 90,1, or other area-specific energy codes? REScheck™ and COMcheck™ energy compliance software is your answer. These free software products from the US Department of Energy are designed to make it fast and easy for builders, designers, and contractors to determine whether residential and commercial new construction projects, additions, or alterations meet energy code requirements.

REScheck™ is appropriate for insulation and window trade-off calculations in residential one- and two-family buildings and multi-family buildings of 3 stories or less above grade, including apartments and condominiums. COMcheck™ is appropriate for trade-off calculations in residential high-rise and commercial projects for insulation, windows, lighting, HVAC, and hot water heating. REScheck™ and COMcheck™ work by performing a UA calculation for your building envelope. The reports generated can be used for compliance with your local building official. 

The REScheck™ and COMcheck™ software programs are free, but the learning curve is steep. Call E3 Power today for a free REScheck or COMcheck services quote in Denver, CO. The price can be as low as $200 for REScheck™ or COMcheck™ compliance and consulting services. All we need is a digital copy of your house or commercial building plans. We complete the take-offs using Sketch-up™ and enter the data into the REScheck™ or COMcheck™ software. Turnaround time is usually two business days.

Make sure your Colorado residential or commercial building project meets energy codes. Call (303) 292-1233 or contact us today for a free quote from e3 Power.


(303) 292-1233

Schedule Service



  • Thank you for your work and the information and professionalism.

    Judy Denver, CO

Sign up for our email newsletter

Want to keep up on our latest promotions and industry news? Click the button below to sign up for our email newsletter.

Sign up