Download COMcheck™ Software

The latest Windows version of COMcheck is Version 3.6.1 (released April 2009).

Download COMcheck, Version 3.6.1
runs on Windows 2000 and XP (17.0 MB)

Supported Codes:
IECC: 1998, 2000, 2001, 2003, 2004 and 2006.
ASHRAE/IES Standard 90.1: 1989, 1999, 2001, 2004 and 2007, and various state-developed energy codes.

See What's New in COMcheck for major changes in each new release.

The following states/jurisdictions have their own versions of the COMcheck software (Version 3.6.1) that include state specific examples and state contact information: Georgia, New Hampshire, New York. The generic COMcheck software above includes support for all of these state versions.

Most states can use COMcheck for energy code compliance. View map for details.

A Mac version of COMcheck is also available.

Download COMcheck, Version 3.6.0
runs on Mac OS X (11.4 MB)

Supported Codes:
IECC: 1998, 2000, 2001, 2003, 2004 and 2006.
ASHRAE/IES Standard 90.1: 1989, 1999, 2001 and 2004, and various state-developed energy codes.

Minimum system requirements: Apple Macintosh computer running Mac OS X 10.3.9 or later (for 10.3.x Java 1.4.2 Update 5 must be installed); at least 256 MB total RAM; at least 20 MB of disk space space

See What's New in COMcheck MAC for major changes in each new release.

Linux Version

We recommend that Linux users use the webtools including COMcheck-Web. This version has been tested in Firefox and also works in Konqueror. We are interested in your feedback, please let us know if you have concerns.

View known problems in COMcheck.

Previous versions of COMcheck are available in the COMcheck Product Archive.

COMcheck Software User's Guide

The Software User's Guides are fully embedded in the online help messages, but are included here in printable form for those who prefer hard-copy documentation. The guides are available in Adobe Portable Document Format (PDF). Download Acrobat Reader.

Software Compliance Guide for 1998 IECC - 101pp (PDF 531 KB)
Software Compliance Guide for 2000 IECC - 99pp (PDF 528 KB)
Software Compliance Guide for 2001 and 2003 IECC - 87pp (PDF 472 KB)
Software Compliance Guide for 2004 and 2006 IECC - 85pp (PDF 461 KB)
Software Compliance Guide for ASHRAE 90.1-1989 - 103pp (PDF 544 KB)
Software Compliance Guide for ASHRAE 90.1-1999 and ASHRAE 90.1-2001 - 81pp (PDF 455 KB)
Software Compliance Guide for ASHRAE 90.1-2004 and ASHRAE 90.1-2007 - 83pp (PDF 457 KB)

COMcheck Plan Review Quick Reference Guide

This Quick Reference Guide (PDF 94 KB) will take you, step-by-step, through a typical plan review of a COMcheck submittal.

Technical Support Documents

Technical Support Document for Version 3.4.0, of the COMcheck Software (PDF 704 KB)