What does an arborist check during a tree risk assessment?

Dead and hanging limbs, V-shaped unions where two trunks meet, cavities, fungal conks, leans and lifted soil at the roots. The arborist also looks at what sits under the tree, such as a roof, a pool cage or a driveway, because the risk rating combines the chance of failure with what it would hit.

Does the Florida arborist letter work for a condo or rental?

No. Fla. Stat. 163.045 covers residential property, which it defines as a single-family detached building on a lot actively used as a single-family home. A condo association, an apartment building or a business still follows the City permit process, though an arborist's assessment can support that application.

Is a tree risk assessment worth it if I'm going to remove the tree anyway?

Often, yes. On an owner-occupied single-family lot, a specimen tree of 18 inches or more across normally needs a City permit and replacement trees. A signed finding of unacceptable risk removes both. And a basic assessment sometimes shows a tree can be kept with pruning or cabling, which costs less than removal.

Tree Risk Assessment in Pompano Beach, FL

Typical cost: cost guides list a tree inspection or risk assessment at about $100 to $250, and a written report on one tree at $150 to $450.
Three levels: limited visual, basic (a full walk around the tree with hand tools) and advanced (drilling, sonic testing or a climb into the crown).
Florida law: under Fla. Stat. 163.045, a signed finding of unacceptable risk on a single-family lot means no City permit, fee or replanting.
Credential to ask for: ISA Certified Arborist, plus the ISA Tree Risk Assessment Qualification, which holders retake every 7 years.

Pompano Beach Tree Care arranges a site visit with a tree contractor who can bring in an ISA Certified Arborist to rate a tree you're unsure about. The call is free. The assessment answers one question in writing: how likely is this tree, or one of its limbs, to fail and hit something that matters, and what would bring that risk down?

Tree Risk Assessment Types, From a Quick Look to a Full Report

Arborist standing at the base of a large live oak, looking up into the canopy with binoculars beside a single-story stucco house

Visual Risk Assessments

ISA's tree risk assessment guidelines describe a limited visual check, a fast look from one side for serious defects, and a basic assessment, where the arborist walks all the way around the tree and may use a probe, a mallet or binoculars. UF/IFAS lists the defects a basic check looks for:

Dead and hanging branches. A broken limb can drop on a calm day, not only in a storm.
Codominant stems. Two trunks of similar size meeting in a tight V, often with bark pinched between them.
Decay and cavities. Conks and other fungal growth on the trunk or at the base.
Leans. A lean that keeps getting worse, or soil heaving up on one side, calls for an arborist right away.

Arborist tapping the lower trunk of an old tree with a rubber mallet, listening for hollow spots near the root flare

Advanced Assessments: Sounding and Decay Testing

When a basic check can't settle the question, the next level looks inside the wood. Published research on the three levels names two common decay tests, a resistance-recording drill and sonic tomography, and counts an aerial inspection from a lift or a climb as advanced too. Each step up takes more time, training and equipment, so the advanced level earns its price on a big tree over a house, where the result decides between keeping it and taking it down.

Arborist's clipboard holding a filled-in tree risk assessment form, resting on a pool deck in front of a leaning tree

Arborist Letters for Dangerous Trees

ISA's method rates risk as low, moderate, high or extreme by weighing how likely a failure is, how likely it is to hit something, and how bad the damage would be. Florida's letter rule ties directly to that scale: the tree has to be one where removal is the only practical way to bring the risk below moderate. Ask for a letter that names the method used, what the tree would hit and the rating, with the arborist's signature.

Gloved hand holding a yellowing leaf from a shade tree up to the light, a magnifier in the other hand

Tree Health and Disease Checks

Thinning in the crown, branch dieback and mushrooms around the trunk can all point to trouble in the roots, which UF/IFAS says are hard to judge because soil and mulch hide them. A health check sorts a tree that needs care from one that needs to come out. For palms, the two diseases that end in removal have their own page: see palm tree disease treatment.

Gloved arborist tapping a live oak trunk with a grey mallet to listen for decay, clipboard under one arm

Why Pompano Beach homeowners call Pompano Beach Tree Care

One independent local tree crew per request
Price, cleanup and haul-away in writing first
Ask for insurance proof and an ISA arborist
Free to call; you pay the crew only for work you OK

Florida's Dangerous-Tree Exemption and the Arborist Letter

Florida Statute 163.045 bars local governments from requiring a notice, application, permit, fee or mitigation to prune, trim or remove a tree on residential property when the owner holds documentation from an ISA Certified Arborist or a Florida licensed landscape architect that the tree poses an unacceptable risk. The City can't make you replant, either. Pompano Beach wrote the same exemption into its own tree code.

Who qualifies
A single-family detached home on a lot actively used as one. Condos, apartments and commercial sites don't.
What "unacceptable" means
Removal has to be the only practical way to get the risk below moderate, judged by ISA's Best Management Practices for Tree Risk Assessment, Second Edition (2017).
Where it matters most
Owner-occupied single-family lots already skip the City permit for most trees. The letter pays for itself on a specimen tree (18 inches or more across and healthy) or a historical tree, which would otherwise need a permit and replacement.
What it doesn't cover
Mangroves sit under their own state law. See mangrove trimming.

What a Tree Risk Assessment Costs, and What to Ask

HomeGuide puts a single-tree report at $150 to $450 and a report covering several trees at $300 to $700. Arborists who bill by the hour charge roughly $100 to $250. Forbes gives an average report price of $450, and Angi budgets about $860 when a permit application requires one, so the figure climbs as the paperwork does.

Credentials
Ask whether the person signing is an ISA Certified Arborist, and whether they hold the ISA Tree Risk Assessment Qualification.
Level
Ask which level of assessment you're paying for, and what would trigger an advanced one.
Paper
Ask for the rating in writing, with the target and the recommended fix, whether that's pruning, a cable or removal.
Responsibility
UF/IFAS puts tree safety on the landowner, so keep the report with your property records.

See tree removal when the report says the tree has to come down.