Mississippi HVAC Authority

The Mississippi HVAC Authority directory catalogues heating, ventilation, and air conditioning service providers, contractors, and related professionals operating across Mississippi's licensed service sector. Listings are organized by service category, geographic coverage, and licensing classification as defined under Mississippi state regulatory frameworks. This page defines the directory's operational boundaries, explains how entries are structured, and identifies the classification standards that govern inclusion and categorization.

How to interpret listings

Each listing in this directory represents a distinct service entity — an individual contractor, a commercial HVAC firm, or a specialty technician — whose information has been compiled from publicly available state licensing databases and business registration records. Listings are not endorsements. The directory structure reflects the Mississippi State Board of Contractors' classification system, which assigns specific license categories to HVAC practitioners based on scope of work, business entity type, and qualifying examination results.

Entries are organized across three primary classification tiers:

1. Licensed HVAC Contractor (Residential) — Entities qualified to install, repair, and service systems in single-family and low-rise residential structures under Mississippi Code Annotated § 73-59.
2. Licensed HVAC Contractor (Commercial) — Entities qualified for commercial-scale systems, including central plant equipment, rooftop units, and variable refrigerant flow (VRF) configurations covered under Commercial HVAC Systems in Mississippi.
3. Specialty Technicians — Individuals certified under EPA Section 608 for refrigerant handling, which is a federal requirement administered through the U.S. Environmental Protection Agency (EPA Section 608), distinct from state contractor licensure.

The distinction between residential and commercial classifications matters because Mississippi's licensing thresholds, bonding requirements, and permitting obligations differ substantially between the two. A residential classification does not authorize work on systems above defined tonnage thresholds without a separate commercial endorsement.

For guidance on reading credential fields and understanding what license numbers mean in practice, see How to Use This Mississippi HVAC Systems Resource.

Purpose of this directory

The directory serves as a structured reference for property owners, facility managers, procurement officers, and industry professionals who require organized access to Mississippi's HVAC service sector. Mississippi's climate conditions — characterized by a humid subtropical classification with average summer temperatures regularly exceeding 90°F and relative humidity above 70 percent in coastal and delta regions — place consistent demand pressure on HVAC infrastructure statewide. The state's approximately 1.1 million occupied housing units, as tracked by the U.S. Census Bureau, represent the residential base this sector serves.

The directory's reference function is distinct from a contractor-matching or lead-generation platform. It does not rank providers by customer ratings or commercial relationships. Instead, it reflects publicly verifiable professional standing: current license status, declared service geography, and applicable certification categories.

The regulatory environment governing Mississippi HVAC work includes the Mississippi State Board of Contractors (MSBC), the International Mechanical Code (IMC) as adopted by the state, and ASHRAE Standard 62.2 for residential ventilation minimums. Practitioners operating without valid state licensure expose both themselves and property owners to legal liability under Miss. Code Ann. § 73-59-13. Understanding these frameworks is foundational context for interpreting directory entries — additional detail appears in Mississippi HVAC Licensing and Certification Requirements.

What is included

The directory encompasses the following categories of HVAC service and equipment within Mississippi's geographic boundaries:

• Forced-air central systems — Split systems, packaged units, and gas furnace combinations used in both residential and light commercial applications.
• Heat pump systems — Air-source and ground-source (geothermal) configurations; the latter are addressed specifically in Geothermal HVAC Systems in Mississippi.
• Ductless mini-split systems — Single-zone and multi-zone configurations increasingly deployed in retrofit applications across Mississippi's older housing stock.
• Commercial HVAC infrastructure — Rooftop units (RTUs), chiller systems, variable air volume (VAV) systems, and energy recovery ventilators (ERVs) used in office, retail, and institutional buildings.
• Specialty and ancillary services — Ductwork fabrication and sealing, refrigerant recovery and recharge, indoor air quality assessment, and thermostat and controls installation.

Entities providing services in adjacent trades — such as electrical work required for HVAC installation, or plumbing connections to hydronic systems — are listed only where their primary declared trade classification is HVAC. Cross-trade contractors appear under their respective licensing categories and are not duplicated across directories.

Mobile and manufactured housing represents a distinct regulatory subcategory in Mississippi. Systems installed in HUD-code manufactured homes fall under federal standards administered by the Department of Housing and Urban Development rather than state building codes — a distinction detailed in HVAC Systems for Mississippi Mobile and Manufactured Homes.

How entries are determined

Entry eligibility is based on three independently verifiable criteria:

1. Active Mississippi contractor license — Verified against the Mississippi State Board of Contractors public license lookup. Licenses in lapsed, suspended, or revoked status are excluded.
2. Declared Mississippi service geography — The entity must list at least one Mississippi county or metropolitan area as a primary service territory. Multi-state contractors are included where Mississippi service is explicitly declared in licensing records.
3. HVAC as primary or declared trade category — General contractors holding HVAC subcontracting capacity are included only where their license category specifically identifies mechanical or HVAC work.

Entries are not purchased, ranked by advertising spend, or subject to editorial scoring. Updates to listing status follow the MSBC's license renewal cycle, which operates on an annual basis for most contractor classifications. Entry data reflects the most recently available public license record at the time of directory compilation.

Scope and coverage limitations: This directory covers licensed HVAC service entities operating within Mississippi's 82 counties and the jurisdictions subject to Mississippi State Board of Contractors authority. It does not cover contractors licensed exclusively in adjacent states (Alabama, Louisiana, Tennessee, Arkansas) unless those contractors hold a valid Mississippi license. Federal facilities operating under separate procurement and inspection frameworks — such as military installations at Camp Shelby or Keesler Air Force Base — fall outside the scope of state contractor licensing requirements and are not addressed here. Permitting jurisdictions that have adopted local amendments to the IMC may impose requirements beyond state minimums; those variations are outside this directory's classification scope but are addressed in Mississippi HVAC Building Codes and Permits.