Commercial Compliance Using COMcheck

The COMcheck software product group makes it easy for architects, builders, designers, and contractors to determine whether new commercial or high-rise residential buildings, additions, and alterations meet the requirements of the IECC and ASHRAE Standard 90.1, as well as several state-specific codes. COMcheck also simplifies compliance for building officials, plan checkers, and inspectors by allowing them to quickly determine if a building project meets the code.

COMcheck Desktop may be downloaded and installed directly to your desktop, while COMcheck-Web™ is accessible directly from the website without having to download and install.

View a list of supported software versions for code compliance tools

See if your state or county can use COMcheck to show compliance


COMcheck-Web simplifies commercial and high-rise residential energy code compliance. It performs just like the desktop version of COMcheck, but you don't need to download or install any software on your computer.

COMcheck™ for Windows®Download COMcheck for Windows, version 4.1.4 108MB

Runs on Windows 7/8/10 in either single, multi-user, or network environments.
Note that the Mac version of COMcheck has been discontinued. Mac users are advised to use COMcheck-Web.

Version 4.1.5 (Build Version:
View Release Notes to see what's new in this version.

Supported Codes:
2009, 2012, 2015 and 2018 IECC.
ASHRAE Standard 90.1-2007, 2010, 2013, 2016
Various state-developed energy codes.

COMcheck Support

Have a compliance question or need assistance with the software?
BECP's team of building energy codes experts is available to answer specific questions submitted through our web-based help desk.

Comcheck Software Support Documents

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Updates to REScheck and COMcheck Building Energy Code Compliance Software

The U.S. Department of Energy (DOE) is directed to provide technical assistance to states to support the implementation of model residential and commercial building energy codes (42 USC 6833). As part of this assistance, the DOE Building Energy Codes Program provides ongoing support for REScheck and COMcheck compliance software, which are updated based on new editions of the model codes. DOE has published guidance surrounding its support for the software, including technical assistance requests for modified versions.