Licensing Guides
Washington DC HVAC License: How to Become an HVAC Contractor in Washington DC
HVAC, DC
Table of Contents
Licensing Requirements for HVAC Contractors in Washington, D.C.
What Is the Mean Wage for an HVAC Technician in Washington, D.C.?
How Much Does It Cost to Get an HVAC License in Washington, D.C.?
How Long Does it Take to Get an HVAC Contractors License in Washington, D.C.?
How Can I Prepare for the HVAC License Exam in Washington, D.C.?
Does My Washington, D.C., HVAC License Work in Any Other State?
What Are the Reciprocity Requirements for an HVAC License in Washington, D.C.?
What Are the Penalties for Unlicensed HVAC Work in Washington, D.C.?
Learning a trade requires hard work and determination. You can’t rush the process, but the time you put into learning how to become an HVACR technician or contractor can lead to a career that is long-lasting, lucrative, and fulfilling. There are 425,200 heating, air conditioning, and refrigeration mechanics and installers nationwide, according to the U.S. Bureau of Labor Statistics, and Washington, D.C. employs 370 of them.
Employment is projected to grow 8% from 2024 to 2034 throughout the country, adding more than 40,000 of these skilled workers to the ranks. In Washington, D.C. that growth rate is projected at 9%, according to CareerOneStop, the U.S. Department of Labor’s job search website.
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Contractors struggle to find skilled tradesmen like plumbers, electricians, and HVACR or mechanical professionals, while the demand for them continues to grow. According to the Associated General Contractors of America, “Construction employment in D.C. in July 2025 totaled 14,900, an increase of 400 (3%) from July 2024 and a decrease of 700 or -4% from February 2020.” So, if you get the training you need, you should have a variety of jobs to choose from.
A large part of what HVAC contractors and technicians do is replace and repair existing systems. As more emphasis is placed on energy efficiency and reducing pollution, systems need to be retrofitted, upgraded, or replaced entirely to comply with these new standards. Licensing requirements for HVAC contractors vary from state to state and, in some cases, from locality to locality. Washington, D.C., has strict licensing for tradespeople, including HVACR professionals.
Licensing Requirements for HVAC Contractors in Washington, D.C.
Is a license required for HVACR professionals in Washington, DC? Yes, and it is mandated from the very beginning.
The District of Columbia licenses refrigeration and air conditioning professionals as it does electricians, plumbers, and more through the DC Department of Licensing and Consumer Protection. Specifically, these tradespeople are licensed through the DC Board of Industrial Trades, which was established “to protect the public health, safety, and welfare of the citizens of the District by ensuring that individuals engaged in these trades have the specialized skills and training required to perform such services for the public.”
Types of HVAC Licenses in Washington, D.C.
What are the different types of HVAC related licenses in Washington, D.C.?
Washington has four levels of licensure for HVAC-related work: apprentice, journeyman, master, and contractor. There are two types of master licenses.
Apprentice — An individual who is employed by a licensed refrigeration and air conditioning contractor and is engaged in learning and assisting in the installation, maintenance, alteration, or repair of refrigeration and air conditioning systems under the direct supervision of a licensed journeyman or master while progressing toward completion of an approved apprenticeship program.
Journeyman Refrigeration and Air Conditioning Mechanic — An individual who is employed by, or works under the supervision of, a licensed master and is engaged in the installation, maintenance, alteration, or repair of refrigeration and air conditioning systems, but who does not plan, supervise, or contract for such work.
Master Refrigeration and Air Conditioning Mechanic Limited — An individual who is qualified to plan, supervise, and perform the installation, maintenance, alteration, and repair of refrigeration and air conditioning systems of limited capacity or scope, as established by the District, and who may supervise journeymen and apprentices within those limitations.
Master Refrigeration and Air Conditioning Mechanic — An individual who is qualified to plan, supervise, and perform the installation, maintenance, alteration, and repair of all types of refrigeration and air conditioning systems, is familiar with District laws and regulations, and may supervise journeymen and apprentices.
Refrigeration and Air Conditioning Contractor — A person or business entity that contracts with the public to provide refrigeration and air conditioning services and employs or is represented by a licensed master refrigeration and air conditioning mechanic to perform or supervise the work.
Each level has specific restrictions and requirements to be eligible for licensing.
LICENSE REQUIREMENTS:
Apprentice
Must be at least 18 years old and a high school graduate or GED equivalent.
Apply for an apprentice license.
May only perform work under the supervision of a licensed master or journeyperson. An apprentice must not knowingly perform work for an unlicensed contractor.
Pay all applicable fees.
Journeyman Refrigeration and Air Conditioning Mechanic
Must be at least 18 years old.
Gain at least three years of experience and pass the D.C. Journeyman Air Conditioning and Refrigeration Examination administered by the third-party testing service, PSI exams, or complete and pass a four-year (8,000 hours) apprenticeship.
Must file an application and submit appropriate fees.
Master Refrigeration and Air Conditioning Mechanic Limited
Must be at least 18 years old.
Must have five years of experience as a journeyman.
Pass the required exam.
Pay all applicable fees.
Master Refrigeration and Air Conditioning Mechanic
Must be at least 18 years old.
Must have five years of experience as a journeyman.
Pass the required exam.
Pay all applicable fees.
Refrigeration and Air Conditioning Contractor
Must be at least 18 years old.
Hold a Master Refrigeration and Air Conditioning Mechanic license or employ a Master Refrigeration and Air Conditioning Mechanic.
Must file an application and submit appropriate fees.
Must hold a $5,000 surety bond and liability insurance.
Steps to Get an HVAC License in Washington, D.C.
Typically be at least 18 years old and have a high school diploma or GED to meet employer expectations or apprenticeship requirements, unless beginning as a high school student through a career and technical education program.
Must enroll in an approved apprenticeship program that is registered with the Washington, D.C., Office of Apprenticeship, Information and Training, part of the Department of Employment Services, and register as an apprentice with the mayor’s office. Or:
Enroll in a training program, either a college or trade school degree or certificate program, to prepare for entry-level work. Or:
Get an entry-level position working under the supervision of a licensed master mechanic.
Complete registered apprenticeship and apply for Journeyman by Waiver license, or work for three years and apply to take the Journeyman examination to earn your Journeyman license.
After five years of experience verified in writing by a master mechanic, apply for Master Mechanic or Master Mechanic Limited license, and pay a fee.
Upon approval from the Board, pay a testing fee and pass the exam to be awarded your master license.
If you wish to own your own HVAC contracting business, you must be licensed as a contractor and hold a master license. You must also purchase and maintain a $5,000 surety bond. This bond must be renewed every two years along with both of your licenses.
Benefits of Getting an HVAC License in Washington, D.C.
There are many benefits to getting your Washington, D.C. HVACR/Mechanical license:
Most important, it is required by law in Washington, D.C. to be licensed to perform heating, ventilation, air conditioning, and refrigeration work at every level, beginning as an apprentice.
A trade license is proof of your experience and skill.
Only licensed HVAC contractors can: operate a business and advertise services, obtain commercial insurance, pull building permits and pass inspections, bid on public and government projects.
Having a license protects your company and customers.
A license gives you a competitive advantage in the job market.
It also increases your earning potential.
What Is the Mean Wage for an HVAC Technician in Washington, D.C.?
The annual mean wage for HVAC mechanics and installers in Washington, D.C., is $83,780, according to the U.S. Bureau of Labor Statistics. However, that salary can increase as you acquire more experience. An HVAC technician salary database, shared with ServiceTitan by Payscale.com, projects the median HVAC technician salary will increase nationally in 2025 by 3.44% for entry-level workers, 3.46% for intermediate level, 3.62% for senior level HVAC professionals, and 3.53% for supervisors.
Salaries can vary widely depending on the city where you work and other factors like education, certifications, additional skills, and the number of years you have spent in your profession. If you choose to start an HVAC business, this blog can give you an idea of what you can expect to make and what factors will influence that number.
What Business Owners Need to Know
Getting the most out of an HVAC technician, no matter where they are in their licensing journey, takes work. ServiceTitan’s cloud-based, all-in-one HVAC software gives technicians and business owners the technology they need to do the work efficiently, and the data they need to do it smartly.
SMS communications that keep customers informed about the technician’s visit.
Location-specific service history, including recorded calls, accessible from the mobile app.
Required forms that ensure every job is done right, driving consistency.
The ability to build multi-option proposals with photos, on-site, in minutes.
Sales presentations that make conversations with customers easier and drive average tickets.
Mobile payment acceptance, eliminating lost checks and increasing cash flow.
To learn more, schedule a demo with a product expert today.
How Much Does It Cost to Get an HVAC License in Washington, D.C.?
You may be able to get some of your early training in high school for free through the career and technical education system. For example, the Edison Academy, part of Fairfax County Public Schools, offers an HVAC program free of charge to high school students. You can expect college programs to cost thousands of dollars.
Apprenticeships are often covered through the sponsoring organization, whether it’s a union, trade organization, or employer. Each level of license application is $65. An apprentice license is $110. All mechanic licenses are $110. Contractor licenses are $120.
The journeyman or either master exam fee is $52. A benefit of this career, however, is that you’ll be earning while you’re learning from the very first day on the job with pay increases as you gain more expertise.
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How to Get an HVAC License in Washington, D.C.
An HVAC career path refers to the different positions you can advance to as your skills and experience in HVAC develop. In Washington D.C., becoming an HVAC/Mechanical professional isn’t fast, but it’s very straightforward.
CAREER AND TECHNICAL EDUCATION: You can get a jump on that instruction through Career and Technical Education. Maryland, Virginia and the District of Columbia, all offer vocational programs combining trade education with high school curriculum. Maryland CTE includes HVAC in its Construction & Development Cluster. The Edison Academy is part of the Fairfax County, Virginia, public school system and offers a two-year HVAC & Refrigeration program for 10th-, 11th-, and 12th-grade students. Phelps Architecture, Construction and Engineering High School in D.C. has an HVAC/R program too.
EDUCATION/EXPERIENCE: If you decide on this career after high school, you can enroll in a community college or trade school program to get the foundational knowledge many employers prefer before looking for an entry-level HVAC job under the supervision of a licensed master mechanic.
APPRENTICESHIP: Apprenticeships are sometimes referred to as “The Other Four-Year Degree,” because it’s like college for the trades. If you get one of the coveted apprentice openings through your local United Association Union of Plumbers, Fitters, Welders, & Service Techs it’s like getting a scholarship to college. Local 5 offers a five-year apprentice program that covers all aspects of the plumbing and gasfitting industry, including welder certification. The apprenticeship through Local 602 covers all aspects of pipefitting, welding, heating, air conditioning and refrigeration, whether for construction or service and maintenance, and is also five years long. These openings are very competitive.
Alternatively, you can find an apprenticeship through the District of Columbia Office of Apprenticeship Training. The website explains the benefits of apprenticeship and the application process. It also allows you to search for both non-union and union sponsors. Or, you can find an entry-level job and ask your employer to act as your apprentice sponsor. If your employer agrees to register you with D.C.’s Apprenticeship program, which meets the U.S. Department of Labor standards that are recognized nationwide, your credentials move with you. You’ll be required to attend classes at night or on weekends to get the requisite theoretical training, but you’ll be getting your academic instruction in tandem with your practical experience, and you probably won’t be paying for all of it.
APPLY FOR EXAMINATION/LICENSE: You can receive your Washington, D.C., Journeyman by Waiver license without taking the D.C. Journeyman exam if you complete an apprenticeship and receive a certificate from a national certifying organization, including a nationally recognized trade organization, non-union sponsor, or labor union that is registered with the Bureau of Apprenticeship Training, the United States Department of Labor, or the District of Columbia Apprenticeship Council. Alternatively, you can apply for your D.C. Journeyman license by examination by submitting an Employment Verification Letter signed by a licensed master mechanic.
After meeting the five-year experience requirements verified by a licensed master mechanic, you may apply to the Board for approval to take the exam for Master Refrigeration and Air Conditioning Mechanic or Master Refrigeration and Air Conditioning Mechanic Limited. The application fee for either is $65, and the initial license fee is $110. You’ll use the DCRA online application portal and will need to submit the following:
One 2”x2” passport-style photo (jpeg format)
Government-issued identification card (e.g., driver’s license)
Debit or credit card to pay application, exam or license fees
Certificate of completion
Employment Verification Letter
The type of license you hold determines the HVACR services that you’re permitted to provide. A Master HVACR can design, install, construct, maintain, service, repair, alter, or modify a product or equipment including gas piping in any size heating and air conditioning, refrigeration, ventilation, or process cooling or heating systems. A Master HVACR Limited can work only on systems of 25 horsepower or less, or the equivalent tons of refrigeration.
CONSIDER BECOMING AN INDEPENDENT CONTRACTOR: If you wish to own your own business in the HVAC field in Washington, D.C., then you’ll also need to get your Refrigeration and Air Conditioning Contractor License. To get this type of contractor license, you must hold the Master Mechanic license or employ someone who does. Contractors also need to purchase and maintain a $5,000 surety bond.
Check out our blog post to learn about the 11 Key HVAC Skills Every Technician Should Have. And, if you choose to pursue owning your own business, you’ll need to stay on top of the changing regulations.
How Long Does it Take to Get an HVAC Contractor License in Washington, D.C.?
Depending on your chosen path, it takes three or four years to earn a journeyman license, and another five years to qualify for a master license. If you choose to become a contractor, the application process will take additional time.
The great news is that as an apprentice, you begin earning a wage from the very beginning and that compensation goes up each year as you acquire more training and knowledge until you are fully licensed at the journeyperson level. Then it goes up again when you acquire your master license. As a licensed contractor you can start your own HVAC business, be your own boss, and grow your business as much as you want.
Washington, D.C., HVAC Training Programs and Schools
Since Washington, D.C., requires HVAC professionals to begin their career journey in a registered apprenticeship, you most likely will not choose to get a postsecondary degree. However, if you want to build your knowledge before beginning as an apprentice, there are options.
Here's a list of the best HVAC schools in the Washington, D.C. area:
Niche provides a list of the best trade schools with HVAC and refrigeration engineering technician degrees in Washington, D.C.
Apprenticeship: UA Local 5 offers a five-year union apprenticeship in cooperation with the Washington, D.C., Joint Apprenticeship Training Committee (JATC). Steamfitters Local 602 offers an apprenticeship through the JATC too. There are also non-union HVAC apprenticeships offered through Associated Builders and Contractors of Metro Washington. The District of Columbia maintains an apprenticeship website that offers apprenticeship information to job seekers and employers. The site includes a list of current registered apprenticeship programs. Many employers will also sponsor you in an apprenticeship. You can seek them out through job boards like Glassdoor and Indeed.
Program Prerequisites: You must be at least 18 years old and have a high school diploma or a GED.
On-the-Job Experience: While on the job you’ll need good customer service skills, be detail-oriented, have some mechanical capability, and be physically fit because the job can include some heavy lifting and hours of walking, standing, and working in tight spaces.
Washington, D.C., HVAC Mechanical Licensing Exam Details
The District of Columbia has contracted with PSI Exams, a third-party testing service, to conduct its licensing examinations. Applicants for any of the Refrigeration and Air Conditioning licenses must first apply for approval to take the examination from the Board of Industrial Trades. You will need to submit a completed application with a Certificate of Completion from your registered apprenticeship or Employment Verification Letter signed by a licensed master and the $65 application fee. Upon approval, you’ll receive a notice of eligibility to take the examination.
Registration for the examination can be completed online or by calling (855) 557-0616. The eligibility period will be for 30 days, and you’ll be able to test one time during that 30-day period. Examination fees must be paid by credit/debit card (Visa, MasterCard, American Express, or Discover) at the time the reservation is made, NOT at the test center.
How Can I Prepare for the HVAC License Exam in Washington, D.C.?
Detailed instructions and information about the exam and the reference materials you should study are all in the Candidate Information Bulletin.
The Master A/C & Refrigeration Mechanical Unlimited, Master A/C & Refrigeration Mechanical Limited exam, and Journeyman A/C & Refrigeration Mechanical exam are all open-book and based on the International Mechanical Code and Modern Refrigeration and Air Conditioning.
The Master Unlimited exam is made up of 80 multiple choice questions with a time limit of three and a half hours. The Master Limited exam has 70 questions, and you are given three hours to complete it. The Journeyman exam has 60 questions and a time limit of two hours. All three exams contain questions about the following content areas:
Theory, System Types, Terminology, and General Requirements
Refrigerant and Condensate Piping
Evaporators, Compressors, Condensers, Chillers, Cooling Towers, Heat Pumps, Heating and AC Appliances
Conditioned Air, Supply, Return, Makeup, Combustion Air, Air Ducts, Dampers, and Insulation
Electrical Fundamentals and Controls
Refrigerants
Operating Procedures, including Safety
Maintenance and Repairs
Computer-testing is administered frequently at the following address:
District of Columbia Department of Consumer and Regulatory Affairs 1100 4th Street SW Suite E 500 Washington, D.C. 20024
You’ll be told if you’ve passed immediately following completion of the examination.
Who Issues HVAC Licenses in Washington, D.C.?
The District of Columbia Board of Industrial Trades licenses refrigeration and air conditioning mechanics, plumbers, electricians, asbestos workers, steam and operating engineers, and those in the elevator trades.
Does My Washington, D.C., HVAC License Work in Any Other State?
No, your Washington, D.C., Refrigeration and Air Conditioning license is not automatically valid in any other state. Unlike D.C. electricians, who have formal reciprocity agreements with Virginia and Maryland, HVAC professionals must follow the specific rules of the state where they wish to work.
However, many states—including Maryland and Virginia—may accept your D.C. license as proof of your experience. This could allow you to apply for "Licensure by Endorsement," which often waives the technical trade exam, though you'll still need to apply and pay that state's specific fees.
What Are the Reciprocity Requirements for an HVAC License in Washington, D.C.?
Washington, D.C. doesn’t have any formal reciprocity agreements for HVAC or Refrigeration licenses. This means there are no automatic requirements that will satisfy an application for a D.C. license based solely on holding one elsewhere.
If you’re moving to the District from another state, you must follow the standard application process:
Testing: You’ll need to take and pass the D.C. exam for the level of license you are seeking (Journeyman or Master).
Experience: You must provide notarized documentation of your work experience (three years for Journeyman, five years for Master).
Waiver exception: The only exception is the Journeyman by Waiver license. You may skip the D.C. exam only if you provide certified proof that you completed a registered apprenticeship program and passed that program's required examination.
HVAC Specific Requirements: EPA Certification
Throughout the country, including in Washington, D.C, federal-level EPA regulations under Section 608 of the Clean Air Act require that technicians who maintain, service, repair, or dispose of equipment that could release refrigerants into the atmosphere must be certified. EPA Section 608 HVAC Certification is required for any professional who conducts refrigerant line-pressure tests or handles or adds refrigerant to existing air conditioning systems.
Most training programs can direct you to how and where to get that certification, or your employer will require you to get it before handling refrigerant. You can also go to EPA.gov and key in 608 Certification in the search bar to find out which institutions in your state offer certification programs. All apprenticeships will include this preparation and testing.
Take Certification Exam: You must acquire your EPA Certification from an approved organization. A list of these organizations can be found on the EPA’s website. There are four types of EPA Certifications for Refrigerants. They allow for different levels of certification for different scopes of work.
Type I – for servicing small appliances containing five pounds of refrigerant or less.
Type II – for servicing high-pressure units that contain five pounds or more of refrigerant (including most small commercial and residential systems).
Type III – for servicing or disposing of low-pressure appliances.
Universal – for servicing all systems and appliances covered under Types I, II, and III. Generally more useful than targeting any one specific certification.
Core Exam
For all certifications, you must pass the “Core Section” of the EPA certification exam. It covers the following topics:
Ozone depletion
Clean Air Act and the Montreal Protocol
Section 608 regulations
Substitute refrigerants and oils
Refrigeration
The Three R’s (Recover, Recycle, Reclaim)
Recovery techniques
Dehydration evacuation
Safety
Shipping
National HVAC Certifications
Other certifications can help you demonstrate your proficiency to potential employers and clients. North American Technical Excellence (NATE) certification, ASHRAE (American Society of Heating, Refrigeration and Air-Conditioning Engineers) certification, and other professional certifications are not required but can add to your marketability as a service provider and therefore increase your opportunity to make more money.
Other Requirements Unique to Washington, D.C.
In addition to holding an HVAC license, mechanical contractors in Washington, D.C., must obtain a Basic Business License (BBL) from the Department of Licensing and Consumer Protection (DLCP) before legally operating or advertising services in the District.
Are There HVAC Scholarships in Washington, D.C.?
Yes, there are plumbing scholarships in Washington, D.C.
PHCC Educational Foundation Scholarships: Offers, scholarships, including the Brass Craft scholarship, to students in 2-year technical colleges or apprenticeships, as well as employees of PHCC-member contractors.
NAWIC Washington, D.C., Chapter: Though amounts vary and awards shift by year, the National Association of Women in Construction offers scholarships for students in construction-related programs, including electrical and trade education.
SkillsUSA Scholarships: Provides multiple scholarships, such as the $2,500 Fine Homebuilding #KeepCraftAlive scholarship for students in trade-related pathways like plumbing.
How Can Someone Verify My HVAC License in Washington, D.C.?
The District of Columbia Department of Licensing and Consumer Protection (DLCP) offers an Occupational & Professional License Search where users can look up occupational and professional licenses by name, license number, or status.
When Can an HVAC License Be Suspended in Washington, D.C.?
A suspended HVACR/Mechanical license means that the license holder is temporarily prohibited from practicing their trade legally. Some of the common reasons that Washington, D.C., HVACR/Mechanical licenses can be suspended are:
Fraud
Professional incompetence
Misleading or deceptive practices
Criminal convictions
Aiding unlicensed individuals
Failure to comply with regulations
Practicing on a lapsed license
Willful or repeated violations of regulations governing HVACR professionals
Licensees can also face disciplinary action if they fail to report changes in business or personal information to the board or fail to respond to an investigation or complaint.
Note: The information above should not be considered legal advice. For detailed and specific information about Washington, D.C. HVAC license regulations, you can refer to the official Code of the District of Columbia.
What Are the Penalties for Unlicensed HVAC Work in Washington, D.C.?
Unlicensed HVAC work in Washington, D.C., is heavily penalized to protect public safety and property. Penalties include substantial civil fines, criminal misdemeanors, mandatory stop-work orders, and the loss of payment rights for the contractor.
Note: The information above should not be considered legal advice. For detailed and specific information about Washington, D.C. HVAC license regulations, you can refer to the official Code of the District of Columbia.
Continuing Education
There is no continuing education requirement in Washington, D.C., but you’ll need to maintain your license through renewal. To keep your mechanic or contractor license current, you’ll need to renew it every two years by the expiration date of Sept. 30 of even-numbered years. Renewal costs $155 for a mechanic license, and $180 for a contractor license. Contractors also need to maintain a $5,000 surety bond.
Also, you’ll want to stay informed about emerging technology in the HVAC industry. There are many ways to keep yourself current in regard to the technology put to use in HVAC systems and appliances. Distributors want you to know about their company’s latest offerings and will often hold training sessions about new and changing equipment and parts. HVAC manufacturers offer training, too, including online. For example, according to HVACSchool.org, Carrier has Carrier University, an elaborate training system that includes classroom and online courses and symposiums and seminars covering all aspects of the HVACR industry and all of the people involved in it.
Resources
You can stay up to date on all HVAC industry news several ways:
Check top HVAC blogs, including ServiceTitan’s blog.
Read about the latest industry trends.
Listen to top HVAC podcasts like ServiceTitan’s “Toolbox for the Trades” podcast.
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