Arborist vs. Tree Service in Tyler, TX

A sick tree needs a diagnosis, a dead one a crew. What an ISA arborist credential means, how to check it, and who to call.

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An arborist is a tree-care specialist; a tree service is a company that cuts, trims and removes trees. Some tree services employ arborists; others don't.

Tyler TX Tree is a referral website, not a tree service company. We send your request to one independent local tree service company. You never pay us; companies we refer you to may pay us for referrals.

We can't tell you ahead of time whether the company your request goes to has an ISA-credentialed arborist on staff. Ask it directly, then check the name yourself on TreesAreGood.org. The rest of this page explains what that credential means and when it matters.

Match the job to the right person

Your situation	Who usually fits	Why
A tree is declining and you don't know why	An arborist, a Texas A&M Forest Service forester, or the county extension office	It needs a diagnosis before anyone sells you a removal
You're deciding whether a big tree should come down	An arborist, ideally one with no stake in the removal	ISA recommends an arborist for exactly this call
A dead tree, an old stump, a cleared lot	A tree service with the right equipment	The work is cutting and hauling, not diagnosis
Broken or hanging limbs after a storm	A professional crew	Texas A&M Forest Service says large broken or hanging limbs are a job for a trained arborist, not a homeowner
Limbs in the lines between poles	The electric utility	Oncor says only Oncor may trim from pole to pole
A tree in the street right-of-way	The City of Tyler	The city's code gives it authority over street trees
Shaping or thinning for looks	An arborist or a tree service	Oncor says cosmetic trimming near its lines is the owner's cost

What an ISA arborist credential means

The International Society of Arboriculture (ISA) is the organization behind the ISA arborist credentials. On its site and in its brochures, ISA says:

It's voluntary and nongovernmental. ISA certification is a way for individuals to document their knowledge. It isn't a government license.
There's an exam. Holders have passed a comprehensive exam covering tree biology, diagnosis, maintenance, safety and other areas.
It has to be kept up. Holders must continue their education to keep the credential, and they agree to a code of ethics.
It's accredited. ISA says its main arborist program is accredited by the ANSI National Accreditation Board against the ISO 17024 standard for certification bodies.
There are levels. Besides the main arborist credential, ISA has a master arborist level, a utility specialist credential, tree worker and climber credentials, and the Tree Risk Assessment Qualification (TRAQ).

Work arborists do beyond cutting

ISA's brochure lists services many people don't expect from a tree professional:

Plant health care and preventive maintenance.
Cabling and bracing to support branches with weak attachments.
Soil aeration to improve root growth.
Lightning protection systems for valuable trees.
Tree risk assessment, and tree protection during construction.
Consulting and legal services relating to trees.

If your question is one of these, say so when you call any company, and ask who will do the work.

A credential belongs to a person, not a company. If a company says it "has an arborist," ask for that person's name and whether that person will see your tree.

How to check one in two minutes

Go to TreesAreGood.org, ISA's consumer site.
Use Find an Arborist to search near Tyler, or Verify a Credential to look up a specific person by name or certification number.
Ask the person for their digital certificate if you want it in writing. ISA says holders have access to one.

Public tree help in Tyler

Before you pay for a diagnosis, try these:

City of Tyler Ask the Arborist. Tyler Parks and Recreation has a department arborist. Call (903) 531-1370 or use the online form with questions about tree care in Tyler.
Smith County AgriLife Extension. 1517 W. Front St., Suite 116, in the Cotton Belt Building; 903-590-2980.
Texas A&M Forest Service. In a July 2026 KLTV column on diagnosing tree problems, Angelina County agent Cary Sims said the Forest Service's foresters "ought to be your very first call." Find your local forester through the Forest Service website.

For what these experts look for, see why oak trees are dying around Tyler and our tree warning signs checklist.

Questions that matter more than a title

ISA's own hiring checklist goes beyond credentials. Use it with any company, including the one we refer you to:

Ask for proof of insurance, then call the insurance company to confirm it.
Check for any local permits the job needs.
Get more than one estimate and ask for references. ISA advises against automatically taking the lowest bid; compare the written scope.
Be wary of people who go door to door offering bargains.
Get it in writing. ISA says most reputable arborists have clients sign a contract.

Two Tyler-specific questions: will the crew avoid pruning oaks from February through June and paint oak cuts, as Texas A&M Forest Service advises? And is hauling the brush in the price? Our Tyler tree rules guide explains the city's pickup limits.

Where this site fits

Use the form when you know the job: tree removal, trimming, stump grinding or storm cleanup. If you aren't sure the tree needs to go, a public expert or an independent arborist can tell you first. Prices for each job are in the Tyler tree removal cost guide. Back to the Tyler tree service home page.

Common questions

Do I need an arborist to remove a tree?

Not always. A dead tree in open ground mostly needs a capable, properly covered crew. ISA recommends involving an arborist when you're deciding whether a tree should come out at all: when it's dying, may be an unacceptable risk, is crowding better trees, or stands where construction is planned.

How do I check an arborist's credential?

Use the free Verify a Credential tool on TreesAreGood.org, ISA's consumer site. You can search by the person's name or certification number. ISA says credential holders can also share a digital certificate.

Does the City of Tyler have an arborist I can ask?

Yes. Tyler Parks and Recreation has a department arborist and an Ask the Arborist line at (903) 531-1370, plus an online form, for questions about tree care and maintenance in Tyler. For trees on the street right-of-way, call the city before anyone cuts.

What is TRAQ?

ISA's Tree Risk Assessment Qualification. ISA calls it a qualification rather than a certification. ISA says qualifications come from a class followed by an assessment and have no continuing-education renewal: they are either valid for life or must be retaken. Ask anyone assessing your tree's risk whether they hold it.

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Last updated 2026-10-24