
To work in the HVACR industry in Maryland, you'll need to get licensed. To qualify for a license, you must be at least 18 years old and have a high school diploma or equivalent.
The Maryland Department of Labor, Licensing and Regulation (DLLR) is the agency responsible for issuing HVACR licenses. You can find more information on their website or by contacting them directly.
To apply for an HVACR license in Maryland, you'll need to submit an application and pay the required fee. The fee for a new license is currently $150.
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Licensing Requirements
To get your Maryland HVACR license, you'll need to meet the licensing requirements set by the state. A license is required to perform HVAC work in Maryland, even for entry-level technicians who must work under the supervision of a licensed contractor.
The Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors oversees the licensing process and issues every level of HVACR license. You can find the licensing requirements on their website.
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To keep your license current, you'll need to renew it every two years, which costs $20. There's no continuing education requirement at this time.
To qualify for a Maryland HVACR license, you'll need to meet one of the following criteria:
- Have a State of Maryland HVACR Apprentice license for at least three years
- Be approved by the Board for an examination in the Limited Contractor, Master Restricted Contractor, or Master Contractor categories prior to August 1, 1997
- Have a combination of time licensed as an apprentice and the successful completion of a course of study in HVACR work that totals three years
All applicants must also pass a comprehensive written examination.
Here's a summary of the licensing requirements:
Note that you'll need to meet all of the following criteria to qualify for a license:
- Be licensed and regularly employed as a Journeyman, Limited Contractor, or Master Restricted Contractor (any specialty) or HVACR instructor for at least three years
- Be regularly and principally employed in providing HVACR services under the direction and control of a Master Contractor, licensed by the HVACR Board
- Be employed to provide HVACR services for at least 1,875 hours prior to applying to take the examination
- Pass a comprehensive written examination
Types of Licenses
In Maryland, there are six types of licenses for HVACR contractors. These licenses are designed to ensure that contractors have the necessary skills and experience to perform various tasks.
A master license allows the licensee to provide installation and maintenance services in all areas of HVACR work. This is the most comprehensive license available.
A master restricted license, on the other hand, allows the licensee to provide installation and maintenance work in one or more areas of HVACR work. This license is suitable for contractors who want to specialize in a particular area, such as air conditioning or refrigeration.
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There is also a limited contractor license, which entitles the licensee to exclusively maintain and repair one or more HVACR systems. This license is ideal for contractors who want to focus on maintenance and repair work.
In addition to these licenses, there is a journeyman license, which allows the licensee to perform HVACR services while under the direction and control of a licensed contractor. This license is typically held by individuals who are still gaining experience in the field.
A journeyman restricted license is similar to the journeyman license, but it allows the licensee to perform one or more specialized HVACR services while under the direction and control of a licensed contractor.
Lastly, there is an apprentice license, which is required for anyone who is entering the trade of HVACR work. This license allows the individual to work under the direction and control of a licensed contractor as they train to become a journeyman.
Here's a summary of the different licenses:
Getting Licensed

To get your Maryland HVACR license, you'll need to meet the licensing requirements. You must be at least 18 years old to apply.
The Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors oversees the licensing process and issues every level of HVACR license. You can find the licensing requirements on their website.
To qualify for a license, you must meet one of the following criteria: have a State of Maryland HVACR Apprentice license for a period of at least three years, be approved by the Board for an examination prior to August 1, 1997, or have a combination of time licensed as an apprentice and the successful completion of a course of study in HVACR work that totals three years.
All applicants must also pass a comprehensive written examination. This exam is required for all levels of licensure, including Journeyman and Master Contractor.
Here are the steps to obtain a Maryland HVACR license:
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1. Must have been licensed as an apprentice for at least three years and completed at least 1,875 hours of training in providing HVACR services under the direction and control of a licensed HVACR contractor.
2. Pass the journeyman restricted examination with a score of 70% (unless you graduated from an approved Maryland Apprenticeship and Training Council program within 2 years of application).
3. Currently hold an apprentice license.
4. Meet the requirements for a reciprocal license, if applicable.
Note that Maryland has reciprocal licensing agreements with Delaware and Virginia, which can simplify the process for those who are already licensed in one of these states.
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Contractor Licensing
To become a licensed HVAC contractor in Maryland, you must meet specific requirements. You'll need to have a license, which is overseen by the Maryland Department of Labor — Division of Occupational and Professional Licensing.
You must apply to the department on the forms issued by the board, and pay the appropriate exam and license fee. Each applicant is required to report any felony or misdemeanor convictions related to home improvement services.
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To get an HVACR contractor license in Maryland, you'll need to meet one of the following criteria: have a State of Maryland HVACR Apprentice license for at least three years, be approved by the Board for an examination, or have a combination of time licensed as an apprentice and the successful completion of a course of study in HVACR work.
You'll also need to pass a comprehensive written examination. Additionally, applicants must meet all of the following criteria: have been licensed and regularly employed as a Journeyman, Limited Contractor, or Master Restricted Contractor for at least three years, have been regularly and principally employed in providing HVACR services under the direction and control of a Master Contractor, and have been employed to provide HVACR services for at least 1,875 hours.
Here are the requirements for a Heating, Ventilation, Air Conditioning and Refrigeration Journeyman Restricted License:
- 10 days approval time
- $20.00 application cost
To keep your state-issued license current, Maryland requires you to renew it every two years, with a renewal fee of $20.
Regulations and Laws

The Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors is responsible for licensing and regulating HVACR services in the state.
The Board licenses and regulates individuals who provide commercial and residential HVACR services pursuant to the provisions of Business Regulation Article 9A, Annotated Code of Maryland, and COMAR 09.15.
To be an HVAC Contractor in Maryland, you must be licensed, even if you're just starting out as an entry-level HVAC technician. You'll need to work under the supervision of a licensed contractor until you get your own license.
The Board investigates complaints against licensees and complaints related to unlicensed practice, and may pursue disciplinary charges against individuals for violations of applicable laws or regulations.
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Other Requirements
To become a licensed HVAC contractor in Maryland, you'll need to meet certain requirements beyond just passing a written examination. You must have a combination of time licensed as an apprentice and the successful completion of a course of study in HVACR work that totals three years.

All applicants must also pass a comprehensive written examination. The Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors issues every level of HVACR license.
To keep your state-issued license current, Maryland requires you to renew it every two years. The renewal fee is $20. This is a straightforward process that ensures you stay up-to-date on the latest regulations and laws.
There is no continuing education requirement for licensed HVAC Contractors in Maryland at this time. This means you can focus on building your skills and experience without worrying about additional coursework.
Here are the eligibility requirements for the Maryland HVACR licensing exam:
All applicants must also meet the following criteria: have been licensed and regularly employed as a Journeyman, Limited Contractor, or Master Restricted Contractor (any specialty) or HVACR instructor for at least three years, have been regularly and principally employed in providing HVACR services under the direction and control of a Master Contractor, licensed by the HVACR Board, and have been employed to provide HVACR services for at least 1,875 hours prior to applying to take the examination.
Law and Regulations
The Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors is responsible for licensing and regulating individuals who provide commercial and residential HVACR services. They do this through the provisions of Business Regulation Article 9A, Annotated Code of Maryland, and COMAR 09.15.
To reach the board, you can visit their website and use Labor's Central Scheduling System to book an appointment. Appointments are available Monday through Friday from 10:00 a.m. to 4:00 p.m. at their offices in Baltimore.
The board also investigates complaints against licensees and those who practice without a license. If a violation is found, the board may pursue disciplinary charges, conduct a hearing, and impose sanctions such as suspension or revocation of a license, or a civil penalty up to $5,000.
Here are the specific laws and regulations that govern the HVACR industry in Maryland:
In order to become a licensed HVACR contractor in Maryland, you must meet one of the following criteria: have a state of Maryland HVACR apprentice license for at least three years, be approved for an examination prior to August 1, 1997, or have a combination of time licensed as an apprentice and completion of a course of study in HVACR work that totals three years.
Exam and Training

To get your Maryland HVACR license, you'll need to pass a licensing exam. PSI Examination provides examination services for the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration.
You'll need to file an application with PSI before taking the exam, and they'll review it to determine which exam you qualify for. The exams are timed, and the time limits vary depending on the type of exam.
The Master HVACR Contractor Examination is 100 questions and lasts 240 minutes, while the Master Restricted and Journeyman Restricted Air Conditioning exam is 50 questions and lasts 120 minutes. The Limited HVACR Contractor exam is also 50 questions and lasts 120 minutes.
You can pay for the exam by money order, company check, personal check, certified check, or cashier's check made payable to PSI. Cash is not accepted, so be sure to have one of these forms of payment ready.
Each exam has a minimum passing grade of 70%. You can find more information about the tests, requirements, and process in the Candidate Information Bulletin.
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To help you prepare for the exam, there are online prep courses available. One option is the Maryland HVACR Online Exam Prep, which offers instant online access, instructor support, and a no pass no pay policy. It also includes unlimited attempts on their test simulation.
Here's a breakdown of the different types of exams and their time limits:
The fees for the exams vary, with the Master exam, Limited Contractor exam, and Journeyman exam costing $150 each, and the other exams costing $50 each.
Cost and Time
Getting an HVAC license in Maryland can be a significant investment, but it's worth it for the long-term benefits. The cost of getting an HVAC license in Maryland varies depending on the license class.
Here's a breakdown of the fees associated with each license class:
- Apprentice | License Fee: $10 | Renewal Fee: $10
- Journeyman | License Fee: $20 | Exam Fee: $150
- Journeyman Restricted | License Fee: $20 | Exam Fee: $50
- Limited Contractor | License Fee: $75 | Exam Fee: $150
- Master Restricted | License Fee: $25 per category, maximum $75 | Exam Fee: $50
- Master | License Fee: $75 | Exam Fee: $150
All licenses must be renewed every two years, which costs $20.
Cost
Getting an HVAC license in Maryland comes with a range of costs. The fees vary depending on the license class you're applying for.

The cost of an HVAC license in Maryland starts at $10 for an Apprentice license, with a renewal fee of $10 every two years. You'll also need to pay an exam fee of $150 for a Journeyman or Master license.
Here's a breakdown of the fees for each license class:
The renewal fee for all licenses is $20 every two years.
How Long to Get a Contractor?
Getting a contractor's license requires a significant investment of time. It will take a minimum of three years to qualify to take the journey-level licensing exam in Maryland.
You can start working and earning money while taking classes, but you'll still need to put in the time to qualify for the master level. Even with classes, you'll likely be working for at least three years as a journeyman to qualify for the master level.
This means you'll have to plan ahead and be prepared to put in the time and effort required to become a licensed contractor. With dedication and hard work, you can achieve your goal and start your own contracting business.
Checking Status

If you're wondering how to check the status of your Maryland HVACR license, you can do so by visiting the Maryland Department of Labor, Licensing and Regulation's website.
To verify your license status, you'll need to log in with your license number and other required information. This will give you access to your license details, including your expiration date and any disciplinary actions taken against your license.
You can also check the status of your reciprocal license, which is available if you're licensed in Virginia or Delaware. If you're considering applying for a reciprocal license, make sure you meet the qualifications outlined in the state's laws.
Here are the requirements for a reciprocal license in Maryland:
- Meet the qualifications of Maryland's HVACR law;
- Hold an active license in good standing in the other state;
- Hold a license that is equivalent to the Maryland HVACR license; and
- Became licensed in the other state after meeting that state's requirements for licensure, which must be at least equivalent to the licensing requirements of this state, including the number of years of work experience required by the Maryland law.
Benefits and Salary
Getting your Maryland HVACR license comes with numerous benefits and a higher salary potential. Most importantly, it's required by law to legally perform A/C and refrigeration work.
A licensed HVAC contractor can operate a business and advertise services, obtain commercial insurance, pull building permits and pass inspections, and bid on public and government projects. This opens up more opportunities for your business.
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Having a license protects your company and customers, and it also increases your earning potential. In Maryland, the annual mean wage for HVAC technicians is $66,510, which is significantly higher than the national average.
Here's a breakdown of average hourly wages for HVAC professionals in Maryland:
HVAC Benefits
Getting an HVAC license in Maryland comes with numerous benefits. It's a requirement by law to be licensed through the state to legally perform A/C and refrigeration work.
Having a license makes you a more attractive candidate to prospective employers, which can be a game-changer in a competitive job market.
A trade license is proof of your experience and skill, giving you a sense of accomplishment and validation in your work.
Only licensed HVAC contractors can operate a business, advertise services, obtain commercial insurance, pull building permits, and pass inspections, which are essential for any successful business.
Having a license also protects your company and customers, providing a level of accountability and responsibility.

It's worth noting that having a license increases your earning potential, which can be a significant advantage in your career.
Here are the key benefits of getting an HVAC license in Maryland:
- Required by law to perform A/C and refrigeration work
- More attractive candidate to prospective employers
- Proof of experience and skill
- Can operate a business, advertise services, and obtain commercial insurance
- Protects your company and customers
- Increases earning potential
Mean Salary for a Technician
The mean salary for an HVAC technician in Maryland is a significant consideration for those in the field. The Bureau of Labor Statistics reports that the annual mean wage for Heating, Air Conditioning, and Refrigeration Mechanics and Installers is $66,510 in Maryland.
Experience plays a crucial role in determining salary, with Indeed.com indicating that wages increase as you gain more experience.
HVAC installers in Maryland can expect to earn an average of $26.04 per hour, with overtime pay adding an extra $6,750 per year.
HVAC technicians in Maryland have a higher average hourly wage of $30.10, with the same overtime pay as installers.
HVAC mechanics earn the highest average hourly wage of $35.18 in Maryland.
Education, certifications, and additional skills can significantly impact your salary as an HVAC technician, and it's essential to consider these factors when building your career.
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Frequently Asked Questions
Do you need a license to clean air ducts in Maryland?
In Maryland, you don't need a personal license to clean air ducts, but your company must have a NADCA-licensed technician on staff to operate legally. To learn more about the requirements and process, click here.
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