Methodology
GoTreePros is a directory of tree-care providers vetted against publicly-available state and municipal licensing records. We document our sourcing, our verification process, and the explicit limits of what this directory can and cannot tell a homeowner.
Sources
Provider records are assembled from three categories of public data:
- State contractor licensing boards — for license number, license type, status (active / lapsed / suspended), bond posting, and the carrier of any required general-liability and workers-compensation insurance.
- Municipal arborist registries — where the city or county requires a separate registration for tree-removal work in the public right-of-way. Coverage varies by jurisdiction; some cities maintain detailed registries, others none at all.
- Better Business Bureau and similar consumer-facing directories — for years-in-business records and a general check that the listed business has been operating long enough to have a track record.
We do not accept paid placement and do not include providers whose only verifiable record is a self-submitted listing. Providers can submit corrections through the contact page if a record needs updating; corrections are verified against the upstream source before publishing.
What licensing actually means
State contractor licensing requirements vary widely. In some states, tree-care work requires a specific arborist or tree-care contractor license; in others, general contractors can perform the work without a separate credential. The directory notes the relevant license type for the provider's state on each record. A green "licensed" badge means the license is current per the most recent state-board scrape; it does not mean the license has never lapsed or that the work being quoted to a homeowner is covered by the license type held.
The ISA Certified Arborist credential is a separate qualification from state licensing. It reflects passing a standardized arborist exam and committing to a code of ethics. Many excellent arborists hold the certification; many also do not. The certification is one signal of professional commitment but not a guarantee of work quality or fit for a specific job.
Refresh cadence
City-page data refreshes on a 90-day default cycle. For cities whose state or municipal records are published as machine-readable feeds, we run an additional 30-day refresh against the feed alone (not the full re-scrape). Provider records that change between refreshes — newly lapsed licenses, status changes, new violations — surface on the next refresh, not in real time.
The last-refresh date appears in the footer of every city page. Provider records that have not been verified within the last 90 days are flagged on the listing so a homeowner can see that the credentialing snapshot may be stale. We treat any record older than 180 days as a hard re-verification trigger.
What we explicitly do not verify
The directory is a credentialing snapshot, not a quality endorsement. We do not verify:
- Individual job quality on past work.
- Customer references provided by the contractor.
- Scheduling reliability or responsiveness.
- On-site safety practices (PPE compliance, rigging, traffic control around the work zone).
- Pricing fairness or quote accuracy.
- Subcontractor arrangements behind a primary listing.
For a real hiring decision, the credentialing layer (this directory) is one of three sources a homeowner should consult. The other two are: direct verification against the state board's live record for the specific license number and status; and customer reviews via Google Reviews, BBB, and similar consumer-reputation platforms. The combination gives a much more complete picture than any single source can.
How to escalate concerns
If a homeowner experiences a safety incident, billing dispute, or property damage with a listed provider, the right escalation path is the state contractor licensing board (which can investigate license violations) and the state attorney general's consumer-protection division (for billing or contract disputes). GoTreePros does not adjudicate disputes between homeowners and providers; we will update or remove listings when documented evidence of credential issues (license suspension, violation findings) is provided.
Frequently asked questions
Where does the provider data come from?
Each city page lists tree-care providers identified from publicly-available state contractor-license records, municipal arborist registries, and Better Business Bureau directories. We do not accept paid placement for inclusion. Providers can submit corrections or request removal via the contact page.
What does the licensing check actually verify?
For each listed provider we record (where the state publishes it): contractor license number and status, ISA Certified Arborist status, and active general-liability and workers-compensation insurance carrier filings. Verification timestamps appear in each provider record. State publishing varies — some states publish full license history; others publish only current-status — and we flag the source state on each record.
How current is the data on a given city page?
City-page data refreshes on a 90-day cycle by default, faster (30-day cycle) for cities with active municipal arborist registry feeds. Each city page footer shows the last-refresh date. Provider status can change between refreshes — a license can lapse, a business can close, insurance can drop — so the data is a snapshot rather than a guarantee.
What does GoTreePros NOT verify?
We do not verify individual job quality, customer references, scheduling reliability, on-site safety practices, or pricing. A licensed insured arborist with a long track record can still produce poor work on a specific job; an unlicensed provider can produce excellent work. The directory is a credentialing snapshot, not a quality endorsement.
How should a homeowner use this directory?
Use it as a starting point: identify two or three providers with current licensing and insurance, then verify credentials directly against the state board's live record, request proof-of-insurance certificates listing your address as additional insured for the job, and check Google/BBB customer reviews. Match the credentialing layer (us) with the direct-verification and reputation layer (your own due diligence).
Why are some cities listed in detail and others not?
Coverage depends on data availability and on how municipal records are published. We cover cities where the state contractor-license board publishes data in a machine-readable format AND the city has enough registered providers to make a meaningful directory. Cities with thin coverage or where state data is unavailable are not yet included; we add cities as data sources improve.