HVAC Permits in Kentucky
Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Kentucky.
Kentucky Energy Code Requirements
Understanding the energy efficiency standards that govern HVAC installations in Kentucky
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 Kentucky
Louisville
Zone 4AJefferson County • 68 ZIP codes
Lexington
Zone 4AFayette County • 38 ZIP codes
Pike
Zone 4APike County • 36 ZIP codes
Floyd
Zone 4AFloyd County • 33 ZIP codes
Harlan
Zone 4AHarlan County • 24 ZIP codes
Letcher
Zone 4ALetcher County • 22 ZIP codes
Perry
Zone 4APerry County • 22 ZIP codes
Knox
Zone 4AKnox County • 17 ZIP codes
Leslie
Zone 4ALeslie County • 17 ZIP codes
Knott
Zone 4AKnott County • 17 ZIP codes
Johnson
Zone 4AJohnson County • 16 ZIP codes
Breckinridge
Zone 4ABreckinridge County • 12 ZIP codes
Hardin
Zone 4AHardin County • 12 ZIP codes
Ohio
Zone 4AOhio County • 12 ZIP codes
Muhlenberg
Zone 4AMuhlenberg County • 12 ZIP codes
Graves
Zone 4AGraves County • 11 ZIP codes
Henry
Zone 4AHenry County • 10 ZIP codes
Hopkins
Zone 4AHopkins County • 10 ZIP codes
Christian
Zone 4AChristian County • 9 ZIP codes
Bowling Green
Zone 4AWarren County • 8 ZIP codes
Nelson
Zone 4ANelson County • 8 ZIP codes
Campbell
Zone 4ACampbell County • 8 ZIP codes
Kenton
Zone 4AKenton County • 8 ZIP codes
Webster
Zone 4AWebster County • 8 ZIP codes
Pulaski
Zone 4APulaski County • 8 ZIP codes
Boone
Zone 4ABoone County • 7 ZIP codes
Greenup
Zone 4AGreenup County • 7 ZIP codes
Lawrence
Zone 4ALawrence County • 7 ZIP codes
Martin
Zone 4AMartin County • 7 ZIP codes
Livingston
Zone 4ALivingston County • 7 ZIP codes
McCreary
Zone 4AMcCreary County • 7 ZIP codes
Hart
Zone 4AHart County • 7 ZIP codes
Marion
Zone 4AMarion County • 6 ZIP codes
Oldham
Zone 4AOldham County • 6 ZIP codes
Meade
Zone 4AMeade County • 6 ZIP codes
Grayson
Zone 4AGrayson County • 6 ZIP codes
Lincoln
Zone 4ALincoln County • 6 ZIP codes
Whitley
Zone 4AWhitley County • 6 ZIP codes
Clay
Zone 4AClay County • 6 ZIP codes
Breathitt
Zone 4ABreathitt County • 6 ZIP codes
Calloway
Zone 4ACalloway County • 6 ZIP codes
Daviess
Zone 4ADaviess County • 6 ZIP codes
Henderson
Zone 4AHenderson County • 6 ZIP codes
Casey
Zone 4ACasey County • 6 ZIP codes
Shelby
Zone 4AShelby County • 5 ZIP codes
Jackson
Zone 4AJackson County • 5 ZIP codes
Laurel
Zone 4ALaurel County • 5 ZIP codes
Grant
Zone 4AGrant County • 5 ZIP codes
Carter
Zone 4ACarter County • 5 ZIP codes
Lewis
Zone 4ALewis County • 5 ZIP codes
Ballard
Zone 4ABallard County • 5 ZIP codes
Warren
Zone 4AWarren County • 5 ZIP codes
Monroe
Zone 4AMonroe County • 5 ZIP codes
Logan
Zone 4ALogan County • 5 ZIP codes
Todd
Zone 4ATodd County • 5 ZIP codes
McLean
Zone 4AMcLean County • 5 ZIP codes
Adair
Zone 4AAdair County • 5 ZIP codes
Bullitt
Zone 4ABullitt County • 4 ZIP codes
Menifee
Zone 4AMenifee County • 4 ZIP codes
Owen
Zone 4AOwen County • 4 ZIP codes
Bath
Zone 4ABath County • 4 ZIP codes
Madison
Zone 4AMadison County • 4 ZIP codes
Rockcastle
Zone 4ARockcastle County • 4 ZIP codes
Boyle
Zone 4ABoyle County • 4 ZIP codes
Bracken
Zone 4ABracken County • 4 ZIP codes
Fleming
Zone 4AFleming County • 4 ZIP codes
Boyd
Zone 4ABoyd County • 4 ZIP codes
Wolfe
Zone 4AWolfe County • 4 ZIP codes
Morgan
Zone 4AMorgan County • 4 ZIP codes
Magoffin
Zone 4AMagoffin County • 4 ZIP codes
McCracken
Zone 4AMcCracken County • 4 ZIP codes
Marshall
Zone 4AMarshall County • 4 ZIP codes
Barren
Zone 4ABarren County • 4 ZIP codes
Edmonson
Zone 4AEdmonson County • 4 ZIP codes
Butler
Zone 4AButler County • 4 ZIP codes
Union
Zone 4AUnion County • 4 ZIP codes
Jefferson
Zone 4AJefferson County • 3 ZIP codes
Washington
Zone 4AWashington County • 3 ZIP codes
Mercer
Zone 4AMercer County • 3 ZIP codes
Powell
Zone 4APowell County • 3 ZIP codes
Scott
Zone 4AScott County • 3 ZIP codes
Montgomery
Zone 4AMontgomery County • 3 ZIP codes
Jessamine
Zone 4AJessamine County • 3 ZIP codes
Pendleton
Zone 4APendleton County • 3 ZIP codes
Carroll
Zone 4ACarroll County • 3 ZIP codes
Mason
Zone 4AMason County • 3 ZIP codes
Gallatin
Zone 4AGallatin County • 3 ZIP codes
Owsley
Zone 4AOwsley County • 3 ZIP codes
Carlisle
Zone 4ACarlisle County • 3 ZIP codes
Metcalfe
Zone 4AMetcalfe County • 3 ZIP codes
Cumberland
Zone 4ACumberland County • 3 ZIP codes
Trimble
Zone 4ATrimble County • 2 ZIP codes
Spencer
Zone 4ASpencer County • 2 ZIP codes
Nicholas
Zone 4ANicholas County • 2 ZIP codes
Rowan
Zone 4ARowan County • 2 ZIP codes
Estill
Zone 4AEstill County • 2 ZIP codes
Woodford
Zone 4AWoodford County • 2 ZIP codes
Bourbon
Zone 4ABourbon County • 2 ZIP codes
Harrison
Zone 4AHarrison County • 2 ZIP codes
Elliott
Zone 4AElliott County • 2 ZIP codes
Lee
Zone 4ALee County • 2 ZIP codes
Hickman
Zone 4AHickman County • 2 ZIP codes
Lyon
Zone 4ALyon County • 2 ZIP codes
Fulton
Zone 4AFulton County • 2 ZIP codes
Crittenden
Zone 4ACrittenden County • 2 ZIP codes
Allen
Zone 4AAllen County • 2 ZIP codes
Hancock
Zone 4AHancock County • 2 ZIP codes
Caldwell
Zone 4ACaldwell County • 2 ZIP codes
Clinton
Zone 4AClinton County • 2 ZIP codes
Russell
Zone 4ARussell County • 2 ZIP codes
Larue
Zone 4ALarue County • 2 ZIP codes
Taylor
Zone 4ATaylor County • 2 ZIP codes
Anderson
Zone 4AAnderson County • 1 ZIP codes
Clark
Zone 4AClark County • 1 ZIP codes
Garrard
Zone 4AGarrard County • 1 ZIP codes
Franklin
Zone 4AFranklin County • 1 ZIP codes
Robertson
Zone 4ARobertson County • 1 ZIP codes
Trigg
Zone 4ATrigg County • 1 ZIP codes
Wayne
Zone 4AWayne County • 1 ZIP codes
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Frequently Asked Questions
Everything you need to know about HVAC permits and energy code compliance in Kentucky
1What energy code does Kentucky follow?
Kentucky 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 Kentucky?
Most jurisdictions in Kentucky 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 Kentucky?
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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Need Climate Zone Data for Kentucky?
Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Kentucky.
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