Need a Manual J calculation in Miami-Dade County, FL? Miami-Dade County has about 2,838,461 residents (2024 estimate) and 34 incorporated cities and towns. Describe your project once: HVAC designers who work in Miami-Dade County get back to you.
Mechanical permits in Miami-Dade County are issued by the city or county building department.
Services available in Miami-Dade County
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Manual J load calculation
Room-by-room heating and cooling load calculation for the HVAC permit.
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Manual S and D equipment and duct design
Equipment selection and duct design from the load calculation.
Frequently asked questions in Miami-Dade County
Do HVAC designers cover the whole of Miami-Dade County?
Most pros work across the county and neighboring counties. Enter your ZIP code in the form and we match you with pros who serve your exact area.
Manual J Load Calculations in Florida: all counties
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.