New Mexico, Bernalillo County HVAC Permit Regulations and County Ordinances for Unincorporated Areas

Bernalillo County HVAC Permit Requirements

In Bernalillo County, the Planning & Development Services department is responsible for overseeing building, mechanical, and trade permits. For properties located within the unincorporated areas of the county, all mechanical work—including the installation, alteration, or repair of heating, cooling, and ventilation systems—requires a mechanical permit. This applies whether the system is ducted or not.

Rules for Unincorporated Areas

The following regulations apply to HVAC work in unincorporated Bernalillo County:

Licensed Contractor Requirement: Under no circumstances can a homeowner perform HVAC or gas piping work. All such work must be performed by a New Mexico licensed mechanical contractor.
Permit Necessity: A permit must be obtained before any work begins. This includes installing or changing any part of a heating or cooling system, as well as the installation, alteration, or repair of gas piping between the meter and an appliance.
Inspections: Once a permit is issued, the individual performing the work is responsible for scheduling required inspections before covering or concealing any work.
Plan Requirements: While plans are not always required for simple repairs, new construction, additions, or modifications to existing homes require the submittal and approval of load calculations (such as ACCA Manual J) and duct sizing/layout plans (ACCA Manual D) prior to permit issuance.
Consequences of Non-Compliance: Failure to obtain a permit is a violation of county ordinance and may result in investigation, violation fees, or prosecution. Additionally, work performed without a permit may be subject to double fees and may cause significant delays or costs when selling the property.

Resources to Learn More

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

New Mexico Hvac Legislation, Codes, and Guidelines

New Mexico HVAC Building Codes and Legislation

In New Mexico, building codes and standards for heating, ventilation, and air conditioning (HVAC) are established and enforced at the state level, primarily through the Construction Industries Division (CID) of the New Mexico Regulation and Licensing Department. These codes are codified under Title 14 of the New Mexico Administrative Code (NMAC).

The state adopts model codes published by national organizations and incorporates state-specific amendments to address local climate, altitude, and construction practices. As of the most recent regulatory information, the state utilizes the following primary model codes as the foundation for its mechanical and energy standards:

New Mexico Mechanical Code: Based on the International Mechanical Code (IMC).
New Mexico Energy Conservation Code: Based on the International Energy Conservation Code (IECC), which also incorporates standards such as ASHRAE 90.1 for commercial applications.
New Mexico Residential and Commercial Building Codes: Based on the International Residential Code (IRC) and International Building Code (IBC), respectively, which contain foundational requirements for building systems, including ventilation and safety.

The authority to adopt and enforce these codes is granted by the New Mexico Construction Industries Licensing Act (NMSA 1978, §60-13-1 et seq.). While the CID serves as the primary authority for the state, some incorporated municipalities operate as Local Enforcement Agencies (LEAs) and may administer their own permitting and inspection programs, provided they enforce the state-adopted minimum codes or more stringent local amendments.

Resources to Learn More

Select a City in Bernalillo 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.

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