Maryland HVACR Contractor License Requirements: Complete 2026 Guide

Official-source review: August 27, 2026

Maryland HVAC contractor license: Maryland licenses HVACR workers and contractors statewide. A Journeyman normally completes four apprentice years and 6,000 supervised hours; contractor-level routes add licensed experience, recent-hour thresholds and an examination.

What the Maryland HVAC contractor license covers

Maryland licenses HVACR workers and contractors statewide. A Journeyman normally completes four apprentice years and 6,000 supervised hours; contractor-level routes add licensed experience, recent-hour thresholds and an examination.

• Heating, ventilation, air-conditioning and refrigeration work within the issued unrestricted or restricted classification.
• Work only within the classification issued.
• Obtain every county or municipal permit and inspection.

Compare related occupations and states in the License Finder.

Maryland HVAC contractor license requirements at a glance

Do not treat this table as an approval notice. The agency, certification organization or local jurisdiction makes the final eligibility decision and may request additional evidence.

How to complete the Maryland HVAC contractor license process

1. Identify the exact individual and business credential.
2. Complete the required education and supervised experience.
3. Obtain approval and pass each required examination.
4. Submit the application, supporting records and current fee.
5. Complete insurance, business registration and local permits.
6. Renew on time and retain the required records.

Keep copies of every experience certificate, examination result, bond or insurance filing and payment receipt. Names and business entities should match across the application and supporting documents.

Important Maryland rules and boundaries

• Restricted classifications authorize only their named scope.
• EPA Section 608 does not replace Maryland HVACR licensing.
• Individual and company activation requirements can be separate.
• Maryland publishes HVACR reciprocity with Delaware and Virginia.

Maryland may separate the credential held by a worker from the contractor license held by the business, while preserving local authority over permits and inspections. Confirm every applicable layer before bidding, advertising or beginning regulated work.

Maryland HVAC contractor license cost and renewal

Budget separately for applications, examinations, training, fingerprints, insurance, business licensing and local permits.

Renew individual, business and specialty credentials separately and verify current charges before filing.

Government charges are only part of the expected cost. Training, examination preparation, fingerprints, surety premiums, insurance, equipment calibration and local permits can add to the total.

Maryland HVAC contractor license checklist

• Confirm that this credential matches the exact work you will perform.
• Check whether the applicant is an individual, sole owner or separate business entity.
• Collect experience and training records before submitting the application.
• Use the current official form and fee schedule.
• Complete every required examination or approved certification route.
• File bonds, insurance and fingerprints when applicable.
• Check county, city, water supplier and building-permit rules.
• Save the expiration date and renewal requirements.

Frequently asked questions

Is this credential statewide?

The principal credential is statewide, but county or municipal registration, permits and inspections may still apply.

Is an exam required?

Pass the examination for the requested Journeyman, Master, Master Restricted or Limited classification with at least 70%.

When does it renew?

Renew on the Board cycle and maintain active status and insurance before contracting.

Are local permits separate?

Yes.

Official sources used

• HVACR licensing
• Requirements
• Reciprocity