Tree work rules in Delaware
What the state says about tree work, with the page each rule comes from. It's a summary of the published rules, not legal advice, and your city or county can have rules of its own.
Checked September 23, 2026
Licensing
Delaware has no state credential for tree care. Its Department of Agriculture only recommends ISA-certified arborists.1
Tree removal permits
Ask your city or county government whether removing a tree needs a permit where you live.
Trees near power lines
If a tree is touching the power line to your house, keep clear and call your utility first. Clearing the line is the utility's job, and a tree company can't start until it's done.
Delaware law treats being within 10 feet of lines over 600 volts as dangerous proximity. Anyone working that close must promptly notify the utility and get its written approval of preventive measures first.2
811 and stump work
Spraying and treating trees
A company spraying or injecting trees for hire in Delaware needs a Pesticide Business License and certified commercial applicators. The category is Category 3 Ornamental and Turf.4
Get quotes from companies in your county
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Sources
What tree work costs in Delaware
Published national ranges for removal, trimming, stump grinding and arborist visits, and a planning estimate for your own job.
Companies in Delaware
Delaware has 67 tree service companies listed, and 44 of them hold an active USDOT registration. Browse them by county, or ask for quotes and we'll pass your job to companies near you.
Cite this page
“Tree work rules in Delaware.” InspecTree, updated September 26, 2026. https://inspectree.com/de/rules/