Alabama, Franklin County HVAC Permit Regulations and County Ordinances for Unincorporated Areas

Franklin County, Alabama HVAC Permit Requirements

In Franklin County, Alabama, HVAC permit requirements are handled at the county level for properties in unincorporated areas. If your property is within an incorporated city, that city's building department will be responsible for permits, not the county.

For unincorporated areas of Franklin County, the county is the permit authority.

A separate trade permit is required for HVAC/mechanical systems if they are part of a larger project.

Generally, permits are needed for:

Complete system replacements or new HVAC system installations.
Major component replacements (e.g., new condensing units, furnaces, or heat pumps).
Ductwork modifications, including adding new ducts or substantially altering existing systems.
Electrical connections for HVAC equipment, including new circuits or connections.

It is recommended to confirm current requirements directly with the local building department, as permit rules and fees can change.

Rules for Properties in Unincorporated Areas

For properties located in unincorporated Franklin County, the county government is responsible for issuing building permits. Unincorporated areas in Franklin County do not have zoning regulations.

When applying for permits in unincorporated Franklin County, you may need to provide:

A completed building permit application or a trade-permit application if only electrical, HVAC, or plumbing work is being done.
A full set of plans/drawings, which should include a site plan (with property lines, existing structures, setbacks, and easements), floor plans, elevation/section views, foundation/structural drawings, and an MEP (mechanical, electrical, plumbing) layout.
For certain projects, a copy of the Franklin County Health Department Improvements Permit (septic tank permit) may be required.
Proof of workers' compensation insurance is generally required before building permits can be issued, especially if contractors have three or more employees or subcontract work.

The county has adopted the 2019 Residential Code of Ohio, which regulates 1, 2, and 3-family dwellings/residential homes.

Contractors must be licensed in accordance with Alabama state law. HVAC contractors in Alabama are required by law to be licensed.

Permits are typically issued within 7-10 days after full plan approval for properties with public water/sewer.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Alabama, including Franklin County.

Alabama Hvac Legislation, Codes, and Guidelines

Overview of HVAC Building Codes in Alabama

Alabama does not have a single, mandatory statewide building code for all residential construction. Instead, the state operates under a decentralized system where building regulation is primarily handled at the local level. Cities and counties have the authority to choose whether to adopt and enforce specific building codes. Consequently, code requirements and the specific editions of codes enforced can vary significantly across different jurisdictions within the state.

Adopted Codes and Standards

While local adoption varies, many jurisdictions in Alabama utilize the International Codes (I-Codes) published by the International Code Council (ICC) as their baseline. For state-regulated buildings (such as state-funded projects), the Alabama Division of Construction Management (DCM) has adopted the 2021 editions of the International Building Code (IBC), International Mechanical Code (IMC), and other related standards. Additionally, the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR) mandates that all certified contractors adhere to specific minimum standards for installation, service, and repair, which include the International Mechanical Code, International Residential Code (IRC), International Fuel Gas Code, and the National Electrical Code (NFPA 70), among others.

Primary State Agencies and Boards

Alabama Building Commission (ABC) / Division of Construction Management (DCM): Responsible for adopting and amending building codes for state-funded buildings and providing guidance for local jurisdictions.
Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR): Governs the licensing of HVAC contractors and establishes the minimum technical standards for HVAC installations, service, and repair across the state.
Alabama Energy and Residential Codes Board: Provides guidance and adopts statewide minimum standards for energy efficiency and residential construction, though enforcement remains a local responsibility.

Resources to Learn More

Select a City in Franklin County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

Help Us Improve This Guide

Did you find a dead link, or do you have the direct link to the Franklin County permit application portal? Help us keep this information accurate by submitting an update.