Alabama HVAC License Requirements

Official classification: Heating, Air Conditioning & Refrigeration Contractor Certification · Issued by the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR).

❄️ HVACAL ✔ Verified 2026-06-22

In Alabama, HVAC contractors must hold the Heating, Air Conditioning & Refrigeration Contractor Certification, issued by the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR), and a $20,000 surety bond is required. Full requirements — experience, exams, fees, insurance, renewal and reciprocity — are detailed below.

How to become a licensed HVAC contractor in Alabama

Follow these steps to earn your Heating, Air Conditioning & Refrigeration Contractor Certification. Every figure is verified against the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR); full detail for each step is further down the page.

  1. Build the required experience. Minimum 3,000 hours (18 months) of work experience gained under supervision of a HACR licensee, documented via W-2s and employer affidavit; OR completion of a board-approved HVAC/refrigeration curriculum; OR two years as a registered apprentice. The responsible individual must be a W-2 employee working 30+ hours per week (not an independent contractor).
  2. Pass the Heating & Air Conditioning Contractor Written Exam (110 questions, 5-hour open-book exam) and Refrigeration Contractor Written Exam (90 questions, 4-hour open-book exam) and Practical Exam (available upon written exam failure; must be requested within 6 months) exams. Providers, passing scores and fees are in the Exams section below.
  3. Secure your surety bond. Alabama requires $20,000 performance bond (business name; Board listed as obligee; form BF-1) required for Active status; no bond for Inactive status.
  4. Line up insurance. You'll need liability insurance (Not publicly mandated by HACR Board; workers' compensation required per Alabama law if 5 or more employees), and workers' compensation coverage.
  5. Clear the background check. Not publicly specified by HACR
  6. Submit your application and fees. Apply through the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR) — $150 examination processing fee (non-refundable) application fee, plus a $220/year (Active) per license type; $110/year (Inactive) per license type license fee. Processing time: Application must be received 10 full working days before the next Board meeting; exam application approved within one calendar year.
  7. Keep the license active. Renew annual (expires December 31; if not renewed within one year of lapsing, must reapply and re-examine), completing 4 hours annually required for all active licensees; up to 8 hours may be completed in one year with 4 hours carrying forward to the next year; hours beyond 8 in a year are not credited.

License types

Requirements at a glance

Experience requiredMinimum 3,000 hours (18 months) of work experience gained under supervision of a HACR licensee, documented via W-2s and employer affidavit; OR completion of a board-approved HVAC/refrigeration curriculum; OR two years as a registered apprentice. The responsible individual must be a W-2 employee working 30+ hours per week (not an independent contractor).
Application fee$150 examination processing fee (non-refundable)
License fee$220/year (Active) per license type; $110/year (Inactive) per license type
Renewal fee$220/year (Active) / $110/year (Inactive); late renewal $250; licenses lapse if not renewed by December 31 annually
Renewal periodAnnual (expires December 31; if not renewed within one year of lapsing, must reapply and re-examine)
Continuing education4 hours annually required for all active licensees; up to 8 hours may be completed in one year with 4 hours carrying forward to the next year; hours beyond 8 in a year are not credited.
Bond required$20,000 performance bond (business name; Board listed as obligee; form BF-1) required for Active status; no bond for Inactive status
Liability insuranceNot publicly mandated by HACR Board; workers' compensation required per Alabama law if 5 or more employees
Property damage
Workers' compRequired by Alabama law for employers with 5+ employees; not a stated HACR Board prerequisite
Background checkNot publicly specified by HACR
Credit requirementNone
ReciprocitySouth Carolina (must hold SC license for 5+ years); Tennessee (must hold TN license for 3+ years); Mississippi (must hold MS license for 1+ year); Louisiana (no waiting period); West Virginia (no waiting period); Ohio
Processing timeApplication must be received 10 full working days before the next Board meeting; exam application approved within one calendar year

Exams

Heating & Air Conditioning Contractor Written Exam (110 questions, 5-hour open-book exam)Provider: Prov Testing Services · Passing: 70% · Fee: $175
Refrigeration Contractor Written Exam (90 questions, 4-hour open-book exam)Provider: Prov Testing Services · Passing: 70% · Fee: $175
Practical Exam (available upon written exam failure; must be requested within 6 months)Provider: HACR Board · Passing: Not publicly disclosed by HACR · Fee: Not publicly disclosed by HACR
Preparing for the HVAC exam? State-specific contractor exam-prep courses help you pass the first time. Start exam prep →

Local / municipal notes

Certification is also required for air duct cleaning, filter changing, and HVAC equipment cleaning services. Realty management companies performing HVAC work on managed properties must be certified. Certification numbers must appear on all vehicles, advertising, invoices, and estimates.

Frequently asked questions

How much does a Alabama hvac license cost?

Application: $150 examination processing fee (non-refundable). License: $220/year (Active) per license type; $110/year (Inactive) per license type. Renewal: $220/year (Active) / $110/year (Inactive); late renewal $250; licenses lapse if not renewed by December 31 annually.

Do hvacs in Alabama need a surety bond?

$20,000 performance bond (business name; Board listed as obligee; form BF-1) required for Active status; no bond for Inactive status

What experience is required for a Alabama hvac license?

Minimum 3,000 hours (18 months) of work experience gained under supervision of a HACR licensee, documented via W-2s and employer affidavit; OR completion of a board-approved HVAC/refrigeration curriculum; OR two years as a registered apprentice. The responsible individual must be a W-2 employee working 30+ hours per week (not an independent contractor).

Is insurance required for hvacs in Alabama?

Liability: Not publicly mandated by HACR Board; workers' compensation required per Alabama law if 5 or more employees Workers' compensation: Required by Alabama law for employers with 5+ employees; not a stated HACR Board prerequisite

How often must a Alabama hvac license be renewed?

Annual (expires December 31; if not renewed within one year of lapsing, must reapply and re-examine). Continuing education: 4 hours annually required for all active licensees; up to 8 hours may be completed in one year with 4 hours carrying forward to the next year; hours beyond 8 in a year are not credited.

Fees and rules change frequently (often annually). This page was last verified on 2026-06-22 — always confirm current requirements directly with the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (HACR) before applying. This is not legal advice.

Official sources

hacr.alabama.gov
hacr.alabama.gov/how-to-get-licensed
hacr.alabama.gov/new-license-application
hacr.alabama.gov/frequently-asked-questions
hacr.alabama.gov/ce
servicetitan.com/licensing/hvac/alabama

Other Alabama contractor licenses

⚡ Electrician
Electrical Contractor License / Journeyman Electrician License
🔧 Plumber
Master Plumber / Journeyman Plumber Certification
🏗️ General Contractor
General Contractor License (Commercial) / Residential Home Builder License
🏠 Roofer
Roofers License

HVAC licensing in other states

Arizona
CR-39 / C-39 / R-39R Air Conditioning and Refrigeration
Arkansas
HVAC-R Contractor License
California
C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
Connecticut
Unlimited Heating, Piping, and Cooling Contractor (S-1) / Unlimited Heating, Piping, and Cooling Journeyperson (S-2)
Florida
Air Conditioning Contractor (Class A / Class B)
Georgia
Conditioned Air Contractor License (Class I or Class II)
Hawaii
C-52 Ventilating and Air Conditioning Contractor / C-53 Refrigeration Contractor
Indiana
HVAC Contractor License
Iowa
HVAC-Refrigeration with Gas License
Kentucky
HVAC Contractor License
Louisiana
Mechanical Work (Statewide) classification
Maryland
HVACR Master / Master Restricted / Limited Contractor / Journeyman License
Massachusetts
No single HVAC license — work is licensed as Sheet Metal Worker, Refrigeration Technician/Contractor, Pipefitter (Heating & Cooling), or Oil Burner Technician depending on the task
Michigan
Mechanical Contractor License — HVAC Equipment Classification
Minnesota
Mechanical Contractor Bond Filing (state level) + Local Competency Card (city level)
Mississippi
Commercial HVAC Contractor (Mechanical Work – HVAC specialty) / Residential HVAC Contractor
Missouri
No statewide HVAC/mechanical license — licensed at the city/county level
Nevada
C-21 Refrigeration and Air Conditioning Contractor
New Jersey
Master HVACR Contractor License
New Mexico
MM-3 Heating, Ventilation and Air Conditioning Contractor
North Carolina
Heating Contractor — Group 1 / Group 2 / Group 3 (Class I / Class II)
Ohio
Commercial Contractor (HVAC)
Oklahoma
Mechanical License (HVAC/R)
Oregon
CCB Contractor License with a mechanical/HVAC specialty endorsement (Residential Specialty Contractor or Commercial Specialty Contractor)
South Carolina
Mechanical Contractor - Air Conditioning / Heating [commercial]; Residential Specialty Contractor - HVAC [residential]
Tennessee
Contractor License, CMC-C (HVAC, Refrigeration and Gas Piping) classification
Texas
Air Conditioning & Refrigeration Contractor License (Class A / Class B)
Utah
H100 HVAC Contractor (replacing the former S350 HVAC Contractor classification)
Virginia
Contractor License (Class A/B/C) with HVAC (HVA) specialty; plus individual HVAC Tradesman license (Journeyman/Master)
Washington
HVAC/R Specialty Contractor Registration + HVAC/Refrigeration Specialty Electrician Certificate (where electrical work is performed)
Wisconsin
HVAC Qualifier Certification + HVAC Contractor Registration