HVAC Permits in Wisconsin
Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Wisconsin.
Wisconsin Energy Code Requirements
Understanding the energy efficiency standards that govern HVAC installations in Wisconsin
Current Energy Code
2021 IECC
Current Standard
Statewide energy efficiency requirements for HVAC systems, equipment, and building envelope performance.
Common Requirements
Important Note
Local jurisdictions may have additional requirements beyond the state energy code. Always verify specific compliance needs with your local building department.
HVAC Permits by City in Wisconsin
Milwaukee
Zone 5AMilwaukee County • 36 ZIP codes
Waukesha
Zone 6AWaukesha County • 25 ZIP codes
Dane
Zone 6ADane County • 23 ZIP codes
Dodge
Zone 6ADodge County • 21 ZIP codes
Grant
Zone 6AGrant County • 19 ZIP codes
Manitowoc
Zone 6AManitowoc County • 15 ZIP codes
Outagamie
Zone 6AOutagamie County • 15 ZIP codes
Marathon
Zone 6AMarathon County • 15 ZIP codes
Clark
Zone 6AClark County • 15 ZIP codes
Fond du Lac
Zone 6AFond du Lac County • 14 ZIP codes
Walworth
Zone 6AWalworth County • 14 ZIP codes
Sauk
Zone 6ASauk County • 14 ZIP codes
Madison
Zone 5ADane County • 13 ZIP codes
Sheboygan
Zone 6ASheboygan County • 13 ZIP codes
Racine
Zone 6ARacine County • 13 ZIP codes
Polk
Zone 6APolk County • 13 ZIP codes
Marinette
Zone 6AMarinette County • 13 ZIP codes
Shawano
Zone 6AShawano County • 13 ZIP codes
Wood
Zone 6AWood County • 13 ZIP codes
Barron
Zone 6ABarron County • 13 ZIP codes
Winnebago
Zone 6AWinnebago County • 13 ZIP codes
Columbia
Zone 6AColumbia County • 12 ZIP codes
Green Bay
Zone 6ABrown County • 11 ZIP codes
Washington
Zone 6AWashington County • 11 ZIP codes
Kenosha
Zone 6AKenosha County • 11 ZIP codes
Iowa
Zone 6AIowa County • 11 ZIP codes
St. Croix
Zone 6ASt. Croix County • 11 ZIP codes
Oconto
Zone 6AOconto County • 11 ZIP codes
Vilas
Zone 7Vilas County • 11 ZIP codes
Trempealeau
Zone 6ATrempealeau County • 11 ZIP codes
Vernon
Zone 6AVernon County • 11 ZIP codes
Waupaca
Zone 6AWaupaca County • 11 ZIP codes
Jefferson
Zone 6AJefferson County • 10 ZIP codes
Rock
Zone 6ARock County • 10 ZIP codes
Crawford
Zone 6ACrawford County • 10 ZIP codes
Pierce
Zone 6APierce County • 10 ZIP codes
Door
Zone 6ADoor County • 10 ZIP codes
Oneida
Zone 7Oneida County • 10 ZIP codes
Bayfield
Zone 7Bayfield County • 10 ZIP codes
Douglas
Zone 7Douglas County • 10 ZIP codes
Juneau
Zone 6AJuneau County • 9 ZIP codes
Portage
Zone 6APortage County • 9 ZIP codes
Langlade
Zone 7Langlade County • 9 ZIP codes
Ashland
Zone 7Ashland County • 9 ZIP codes
Chippewa
Zone 6AChippewa County • 9 ZIP codes
Dunn
Zone 6ADunn County • 9 ZIP codes
Waushara
Zone 6AWaushara County • 9 ZIP codes
Ozaukee
Zone 6AOzaukee County • 8 ZIP codes
Calumet
Zone 6ACalumet County • 8 ZIP codes
Lafayette
Zone 6ALafayette County • 8 ZIP codes
Brown
Zone 6ABrown County • 8 ZIP codes
Price
Zone 7Price County • 8 ZIP codes
Rusk
Zone 6ARusk County • 8 ZIP codes
La Crosse
Zone 6ALa Crosse County • 8 ZIP codes
Sawyer
Zone 7Sawyer County • 8 ZIP codes
Green Lake
Zone 6AGreen Lake County • 7 ZIP codes
Iron
Zone 7Iron County • 7 ZIP codes
Monroe
Zone 6AMonroe County • 7 ZIP codes
Eau Claire
Zone 6AEau Claire County • 7 ZIP codes
Washburn
Zone 7Washburn County • 7 ZIP codes
Richland
Zone 6ARichland County • 6 ZIP codes
Marquette
Zone 6AMarquette County • 6 ZIP codes
Taylor
Zone 7Taylor County • 6 ZIP codes
Jackson
Zone 6AJackson County • 6 ZIP codes
Adams
Zone 6AAdams County • 5 ZIP codes
Forest
Zone 7Forest County • 5 ZIP codes
Buffalo
Zone 6ABuffalo County • 5 ZIP codes
Burnett
Zone 7Burnett County • 5 ZIP codes
Kewaunee
Zone 6AKewaunee County • 4 ZIP codes
Lincoln
Zone 7Lincoln County • 4 ZIP codes
Pepin
Zone 6APepin County • 4 ZIP codes
Florence
Zone 7Florence County • 3 ZIP codes
Menominee
Zone 6AMenominee County • 2 ZIP codes
Need Professional Load Calculations?
Ensure your HVAC system meets all code requirements in Wisconsin
Upload your blueprint and get results in 5 minutes • Used by 10,000+ contractors
Frequently Asked Questions
Everything you need to know about HVAC permits and energy code compliance in Wisconsin
1What energy code does Wisconsin follow?
Wisconsin follows the 2021 IECC for energy efficiency requirements. This includes specific standards for HVAC equipment efficiency, duct design, and building envelope performance.
2Are Manual J calculations required in Wisconsin?
Most jurisdictions in Wisconsin require Manual J load calculations for proper HVAC system sizing. Our free load calculation tool can generate the professional reports you need for permits.
3How long does it take to get HVAC permits in Wisconsin?
Permit processing times vary by jurisdiction, typically ranging from 1-3 weeks. Having complete documentation including load calculations can speed up the process. Check with your local building department for specific timeframes.
4Do I need different permits for different types of HVAC work?
Yes, permit requirements vary based on the scope of work. New installations typically require mechanical permits, while simple repairs may not need permits. Replacements usually require permits if there are changes to the system capacity or ductwork.
Ready to Get Permit-Ready Load Calculations?
Don't risk permit delays. Get your first Manual J load calculation report free - professionally formatted and ready for Wisconsin building departments.
Join 10,000+ HVAC contractors who trust AutoHVAC for permit-ready calculations
Need Climate Zone Data for Wisconsin?
Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Wisconsin.
View Wisconsin Climate Zones