Do HVAC contractors need a license in Delaware?
Yes. In Delaware, providing heating, ventilation, air conditioning and refrigeration services requires a master HVACR license, or a master HVACR restricted license for one specialty, from the State Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners. HVACR services means the design, installation, construction, maintenance, service, repair, alteration or modification of equipment, including gas piping, in heating, air conditioning, refrigeration, ventilation or process cooling or heating systems. Workers under the supervision of a master licensee who employs them are exempt, as is a homeowner doing HVACR work other than gas piping in his or her own home that is not for sale or rent. This is 24 Del. C. §§ 1802, 1820.
| What | Delaware |
|---|---|
| HVAC license | Master HVACR license (Board of Plumbing/HVACR) |
Source
Read the statute in the Delaware Code (Delaware General Assembly): delcode.delaware.gov.
Checked against the statute on November 13, 2026.
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses this rule
A contractor on Seayora keeps each license with its issuing state, its expiry date and the last four digits of its number, and the business is warned before one lapses — on the website and both phone apps. A customer finding a pro on Seayora sees whether a license is on file.
Guides on this rule
- Contractor License Requirements by State: Every Trade — Which states require a state license for electricians, plumbers, HVAC, general and home improvement contractors, with the statute for each.
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