HVAC Permits in Missouri
Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Missouri.
Missouri Energy Code Requirements
Understanding the energy efficiency standards that govern HVAC installations in Missouri
Current Energy Code
2020 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 Missouri
Saint Louis
Zone 4ASaint Louis City • 67 ZIP codes
Kansas City
Zone 4AJackson County • 53 ZIP codes
Jackson
Zone 4AJackson County • 24 ZIP codes
Franklin
Zone 4AFranklin County • 18 ZIP codes
St. Louis City
Zone 4ASt. Louis City County • 17 ZIP codes
Springfield
Zone 4AGreene County • 16 ZIP codes
Jasper
Zone 4AJasper County • 16 ZIP codes
Nodaway
Zone 5ANodaway County • 15 ZIP codes
Texas
Zone 4ATexas County • 15 ZIP codes
Taney
Zone 4ATaney County • 15 ZIP codes
Ozark
Zone 4AOzark County • 14 ZIP codes
Jefferson
Zone 4AJefferson County • 13 ZIP codes
New Madrid
Zone 4ANew Madrid County • 13 ZIP codes
Cass
Zone 4ACass County • 13 ZIP codes
St. Charles
Zone 4ASt. Charles County • 12 ZIP codes
Dunklin
Zone 4ADunklin County • 12 ZIP codes
Lafayette
Zone 4ALafayette County • 12 ZIP codes
Christian
Zone 4AChristian County • 12 ZIP codes
Scott
Zone 4AScott County • 11 ZIP codes
Wayne
Zone 4AWayne County • 11 ZIP codes
Buchanan
Zone 5ABuchanan County • 11 ZIP codes
Barry
Zone 4ABarry County • 11 ZIP codes
Washington
Zone 4AWashington County • 10 ZIP codes
Lincoln
Zone 4ALincoln County • 10 ZIP codes
Callaway
Zone 4ACallaway County • 10 ZIP codes
Macon
Zone 5AMacon County • 10 ZIP codes
Iron
Zone 4AIron County • 10 ZIP codes
Cape Girardeau
Zone 4ACape Girardeau County • 10 ZIP codes
Stoddard
Zone 4AStoddard County • 10 ZIP codes
Vernon
Zone 4AVernon County • 10 ZIP codes
Lawrence
Zone 4ALawrence County • 10 ZIP codes
Boone
Zone 4ABoone County • 10 ZIP codes
Camden
Zone 4ACamden County • 10 ZIP codes
Saline
Zone 4ASaline County • 10 ZIP codes
Polk
Zone 4APolk County • 10 ZIP codes
Linn
Zone 5ALinn County • 9 ZIP codes
Harrison
Zone 5AHarrison County • 9 ZIP codes
McDonald
Zone 4AMcDonald County • 9 ZIP codes
Miller
Zone 4AMiller County • 9 ZIP codes
Stone
Zone 4AStone County • 9 ZIP codes
St. Francois
Zone 4ASt. Francois County • 8 ZIP codes
Pike
Zone 5APike County • 8 ZIP codes
Montgomery
Zone 4AMontgomery County • 8 ZIP codes
Audrain
Zone 4AAudrain County • 8 ZIP codes
Shelby
Zone 5AShelby County • 8 ZIP codes
Lewis
Zone 5ALewis County • 8 ZIP codes
Sullivan
Zone 5ASullivan County • 8 ZIP codes
Bollinger
Zone 4ABollinger County • 8 ZIP codes
Pemiscot
Zone 4APemiscot County • 8 ZIP codes
Johnson
Zone 4AJohnson County • 8 ZIP codes
Andrew
Zone 5AAndrew County • 8 ZIP codes
Chariton
Zone 5AChariton County • 8 ZIP codes
Bates
Zone 4ABates County • 8 ZIP codes
Osage
Zone 4AOsage County • 8 ZIP codes
Morgan
Zone 4AMorgan County • 8 ZIP codes
Randolph
Zone 4ARandolph County • 8 ZIP codes
Greene
Zone 4AGreene County • 8 ZIP codes
Hickory
Zone 4AHickory County • 8 ZIP codes
Gasconade
Zone 4AGasconade County • 7 ZIP codes
Knox
Zone 5AKnox County • 7 ZIP codes
Butler
Zone 4AButler County • 7 ZIP codes
Ray
Zone 4ARay County • 7 ZIP codes
DeKalb
Zone 5ADeKalb County • 7 ZIP codes
Livingston
Zone 5ALivingston County • 7 ZIP codes
Daviess
Zone 5ADaviess County • 7 ZIP codes
Carroll
Zone 4ACarroll County • 7 ZIP codes
Caldwell
Zone 5ACaldwell County • 7 ZIP codes
Henry
Zone 4AHenry County • 7 ZIP codes
Newton
Zone 4ANewton County • 7 ZIP codes
Cole
Zone 4ACole County • 7 ZIP codes
Cooper
Zone 4ACooper County • 7 ZIP codes
Pettis
Zone 4APettis County • 7 ZIP codes
Phelps
Zone 4APhelps County • 7 ZIP codes
Crawford
Zone 4ACrawford County • 7 ZIP codes
Pulaski
Zone 4APulaski County • 7 ZIP codes
Howell
Zone 4AHowell County • 7 ZIP codes
Dallas
Zone 4ADallas County • 7 ZIP codes
Wright
Zone 4AWright County • 7 ZIP codes
Clark
Zone 5AClark County • 6 ZIP codes
Monroe
Zone 4AMonroe County • 6 ZIP codes
Reynolds
Zone 4AReynolds County • 6 ZIP codes
Platte
Zone 4APlatte County • 6 ZIP codes
Clay
Zone 4AClay County • 6 ZIP codes
Gentry
Zone 5AGentry County • 6 ZIP codes
Clinton
Zone 5AClinton County • 6 ZIP codes
Laclede
Zone 4ALaclede County • 6 ZIP codes
Dade
Zone 4ADade County • 6 ZIP codes
Marion
Zone 5AMarion County • 5 ZIP codes
Adair
Zone 5AAdair County • 5 ZIP codes
Schuyler
Zone 5ASchuyler County • 5 ZIP codes
Putnam
Zone 5APutnam County • 5 ZIP codes
Mississippi
Zone 4AMississippi County • 5 ZIP codes
Ripley
Zone 4ARipley County • 5 ZIP codes
Holt
Zone 5AHolt County • 5 ZIP codes
Atchison
Zone 5AAtchison County • 5 ZIP codes
St. Clair
Zone 4ASt. Clair County • 5 ZIP codes
Maries
Zone 4AMaries County • 5 ZIP codes
Moniteau
Zone 4AMoniteau County • 5 ZIP codes
Howard
Zone 4AHoward County • 5 ZIP codes
Benton
Zone 4ABenton County • 5 ZIP codes
Dent
Zone 4ADent County • 5 ZIP codes
Oregon
Zone 4AOregon County • 5 ZIP codes
Webster
Zone 4AWebster County • 5 ZIP codes
Warren
Zone 4AWarren County • 4 ZIP codes
Scotland
Zone 5AScotland County • 4 ZIP codes
Perry
Zone 4APerry County • 4 ZIP codes
Carter
Zone 4ACarter County • 4 ZIP codes
Worth
Zone 5AWorth County • 4 ZIP codes
Grundy
Zone 5AGrundy County • 4 ZIP codes
Barton
Zone 4ABarton County • 4 ZIP codes
Douglas
Zone 4ADouglas County • 4 ZIP codes
Ralls
Zone 5ARalls County • 3 ZIP codes
Ste. Genevieve
Zone 4ASte. Genevieve County • 3 ZIP codes
Cedar
Zone 4ACedar County • 3 ZIP codes
Shannon
Zone 4AShannon County • 3 ZIP codes
Madison
Zone 4AMadison County • 2 ZIP codes
Mercer
Zone 5AMercer County • 2 ZIP codes
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Frequently Asked Questions
Everything you need to know about HVAC permits and energy code compliance in Missouri
1What energy code does Missouri follow?
Missouri follows the 2020 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 Missouri?
Most jurisdictions in Missouri 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 Missouri?
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.
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Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Missouri.
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