Delaware renewal guide
Master HVACR Restricted
If this license is up for renewal, this page gives you the fee, the timeline, and the items that usually hold the filing up.
Start here
What matters before you file.
Check the fee, the renewal window, and the documents or insurance records that can slow approval down.
Issuing authority
Renewal period
Every 24 months
Renewal fee
$173.00
Late penalty
$86.50
Bond requirement
No
Insurance requirement
No
Before you renew
Get the filing straight.
- 1
File with the board
File through Delaware Division of Professional Regulation, Board of Plumbing, HVAC and Refrigeration Examiners and pay the $173.00 renewal fee once the supporting proof is ready.
Renew online - 2
Leave room for processing
Typical processing time is 30 days, so do not wait until the last minute.
If you miss the deadline, the late penalty is $86.50.
Detailed notes
The fine print is here.
Delaware Master HVACR Restricted License
The Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners issues the Master HVACR Restricted license through the Division of Professional Regulation (DPR). This license is limited to a single HVACR specialty discipline.
What This License Authorizes
Master HVACR Restricted licensees may perform HVACR services limited to one of the following specialties:
- Heating (Forced Air Systems)
- Heating (Hydronic Systems)
- Commercial Hood Systems
- Refrigeration
- Air Conditioning
- Gas Piping
- Ventilation
Experience Requirements
- With Journeyman Certificate: Apprenticeship completion plus at least 2 years of work experience under a master licensee
- Without Journeyman Certificate: At least 7 years of work experience under a master licensee
- By Reciprocity: Connecticut and Maryland without additional experience; most other states require 7 years post-licensure
Examination
Must pass the Master HVACR Restricted examination for the chosen specialty with a score of 70% or higher.
Fees
- Application/License Fee: $173
- Renewal Fee: $173 (biennial)
- Late Fee: 50% of the renewal fee ($86.50)
Renewal Process
- Renewal Period: Every 2 years, expires October 31 of even-numbered years
- Renew online through DELPROS
- CE requirements take effect for the 2026 renewal cycle
- May file late renewal up to 1 year after expiration with late fee
*Disclaimer: This information is provided for general reference only and does not constitute legal advice. Always verify current requirements directly with the Delaware Division of Professional Regulation.*
Official links
Check the board or agency directly.
Required documents
- exam_results
- experience_verification
- licensure_verification
Source notes
Delaware Division of Professional Regulation, Board of Plumbing/HVACR Examiners . Verified March 2026. https://dpr.delaware.gov/boards/plumbers/fees/
Rules move. Check Delaware Division of Professional Regulation, Board of Plumbing, HVAC and Refrigeration Examiners again before you pay, renew, or schedule work around this requirement.
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Next steps
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Printable checklist
Delaware checklist
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