The Division of Professional Regulation office in Dover is temporarily closed to the public.
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The type of license you hold determines the HVACR services that you are permitted to provide.
Master HVACR – A Master HVACR can design, install, construct, maintain, service, repair, alter, or modify a product or equipment including gas piping in heating and air conditioning, refrigeration, ventilation, or process cooling or heating systems.
Master HVACR Restricted – A Master HVACR Restricted can provide HVACR services limited to one of the following specialties:
If you wish to provide services in more than one of these specialties, you must apply for a Master HVACR license. If you already hold a current Delaware Master HVACR Restricted license, you must apply to upgrade to an unrestricted license.
You need a Master Plumber license in addition to a Master HVACR or Master HVACR Restricted license if you design, install, construct, replace, service, repair, alter, or modify the pipes, fixtures, and other apparatus used for bringing the water supply into a building and removing liquid and water-carried wastes from a building. You can also install and connect gas piping. To apply for a Master Plumber license, see Master Plumber Licensure.
All applications are submitted our online system DELPROS. We no longer accept paper applications.
In order to apply for a license or submit a service request, you must first have a DELPROS user account. To LOG IN or CREATE a DELPROS (Delaware Professional Regulation Online Services) user account:
DELPROS allows you to save your incomplete application and return to it later to finish the process. You only have six (6) months to submit your application once you begin.
You may check the status of your application online throughout the entire application process by using the “View Application Status” feature in DELPROS on your e-License dashboard.
On the ATTACHMENTS page of your application, you may be instructed to:
The requirements for this license type are provided in the following section(s).
In addition to submitting the application and fee in DELPROS, you must submit:
The following requirements apply to applications by examination in addition to the requirements in the previous section above. The documents that you must submit is determined by whether or not you have a “Journeyman Certificate”. The acceptable “Journeyman Certificate” is one that is issued by a federally-approved HVACR apprenticeship program such as the Delaware Department of Labor.
When the Board approves you to sit for the Master exam, the Board office will send you a candidate information packet. For more information about the Master exam, see Examinations.
The following requirements apply to applications by reciprocity in addition to the requirements in the Requirements for All Applicants section above.
If none of the jurisdictions where you hold a current license has licensure standards that are “substantially similar” to those of Delaware, proof of experience is required. The table below shows whether to submit proof of experience.
|IF you hold a current HVACR license in any of these states…||THEN the licensure standards…||AND you…|
|Connecticut, Iowa, Maryland||are substantially similar||do not need to submit any proof of experience.|
|Alabama, Arkansas, District of Columbia, Florida, Georgia, Michigan, New Hampshire, New Jersey, North Carolina, Ohio, Rhode Island, South Carolina, Virginia, West Virginia||are not substantially similar||must submit proof of your experience under the supervision of a master licensee for at least seven years after licensure.|
|any state or U.S. territory not listed above||must be evaluated by the Board||must submit a copy of the other jurisdiction’s law and regulations for evaluation.|