How to Hire a Licensed, Insured Arborist

Hiring the wrong tree company can cost you dearly. Here is how to verify credentials, insurance, and certification so you hire a safe, qualified arborist.

Tree work is one of the most dangerous jobs in the country, and it takes place directly over your home, your car, and your family. Hiring the wrong company can leave you liable for injuries, stuck with damage, or the victim of a storm-chasing scam. Knowing how to vet an arborist protects both your property and your wallet. Here is what to check before anyone touches your trees.

Confirm ISA Certification

The most meaningful credential in the industry is ISA Certification from the International Society of Arboriculture. A Certified Arborist has passed a comprehensive exam and commits to ongoing education and a code of ethics.

• Ask for the arborist's certification number and verify it

• Look for the ISA Certified Arborist credential specifically, not just a company logo

• You can learn about certification and find qualified professionals through ISA's Trees Are Good

Certification signals that the person assessing and cutting your tree understands tree biology, structure, and safe work practices, not just how to run a saw.

Verify Insurance in Writing

This step is non-negotiable. If an uninsured worker is hurt on your property, or a falling limb damages your home, you could be held financially responsible.

• General liability insurance: covers damage to your property

• Workers' compensation: covers injuries to the crew

• Ask for a certificate of insurance sent directly from the insurer, not a photocopy

• Confirm the coverage is current and adequate for the size of the job

A reputable company expects this request and provides documentation without hesitation.

Check Licensing and Local Standing

Licensing requirements vary by state and municipality, but you should still confirm the company operates legally and has a real, verifiable presence.

• A physical address and consistent business name

• Any state or local licenses your area requires

• Reviews and references from recent local jobs