Timmy's Tree Service
Professional Tree
Diagnostic & Assessment
Something wrong with your tree but not sure what? Our ISA-certified arborists perform thorough on-site diagnostics — identifying the real cause, not just the visible symptom.
ISA CertifiedArborist
T.R.A.Q.Certified
BBBAccredited (A+)
NextDoor Fave21', 22', 23', 25'
Diagnostic Fee
$450
- ISA Certified Arborist on-site
- Written assessment report
- Fertilization included if needed
- No obligation to approve further work
- Fee applied toward any approved work
Know the Warning Signs
Is Your Tree Showing These Symptoms?
If any of these apply to a tree on your property, a diagnostic assessment is the right next step. Many of these symptoms appear minor but signal deeper structural or health problems.
- Dead or dying limbs in the canopy
- Visible decay, cavities, or hollow sections
- Fungal growth on trunk or roots
- Cracks or splits in trunk or major branches
- Tree leaning or root heave
- Storm damage or broken limbs
- Insect activity or unusual pest presence
- Tree within fall distance of a structure
Not sure if what you're seeing qualifies? Call us — we'll help you figure it out before you schedule anything.
What to Expect
A Multi-Factor Assessment, Not a Quick Look
Tree problems rarely have a single cause. What looks like a disease or pest issue is often a tree already weakened by root damage, soil stress, drought, or poor past pruning. Insects and pathogens attack the vulnerable — treating the symptom without identifying the underlying stressor rarely works.
On-Site Arborist Visit
An ISA Certified Arborist visits your property and conducts a systematic evaluation — root zone, soil conditions, structural integrity, pest and disease indicators, and environmental stress factors.
Written Assessment Report
You receive a formal written report with findings, identified stressors, and recommended next steps. Suitable for insurance claims, legal documentation, or property transactions.
Fertilization If Warranted
If soil nutrient deficiency is identified as a contributing factor, fertilization is included in the diagnostic fee — no additional charge.
Diagnostic Fee
$450
- ISA Certified Arborist on-site
- Written assessment report
- Fertilization included if needed
- No obligation to approve further work
- Fee applied toward any approved work
What Timmy's Tree Service Customers Are Saying
Timmy's did a great job. Four guys showed up and did the job in two hours. They were professional and accommodating, even though my back yard presented some challenges because...
Thank you as always. Fifteen years of great service. Your people are the best. Look forward to having you in the spring. Thanks again, Don
It was difficult to get an appointment, but their folks finally arrived, and were finished quickly and expertly. Many thanks!!
Used Timmy's Tree Service to prune our 4 trees. They shaped them perfectly and the price was great. Friendly and knowledgeable crew. Would recommend them to anyone needing...
Timmy’s Tree Service does Great work for a good price.
They were responsive and did a great job. I'd hire them again.
We had a huge tree removed by Timmy’s and we extremely happy with the timing and professionalism of the crew. They were here when they said they would be and completed and cleaned...
Timmy’s did a great job at pruning up an ash tree that needed some love. They even took care of a pile of branches from a trimming we had done on another tree. We still would have...
Request a Diagnostic
What to Expect
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Request Diagnostic
Submit the form online or give us a call. Tell us a bit about your trees and what you need assessed.
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Confirm Diagnostic
We'll reach out to confirm the details of your diagnostic request.
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Receive Diagnostic
An ISA-certified arborist visits your property and performs a thorough assessment of your trees.
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Approve Recommendations
Review the diagnostic report and our recommended next steps on your own timeline. When you're ready to move forward, simply let us know.
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Confirm Job Date
We'll contact you when we have a scheduled date for your job.
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Job Completed
Our crew arrives, completes the work safely and efficiently, and leaves your property spotless.
Diagnostic FAQs
What exactly is a tree diagnostic?
A tree diagnostic is a formal, on-site assessment performed by an ISA Certified Arborist. Rather than a quick visual inspection, it's a systematic evaluation of your tree's health, structure, and risk — covering root zone conditions, soil health, signs of disease or pest activity, structural integrity, and environmental stress factors. You receive a written report with findings and recommendations.
How much does a diagnostic cost?
Our diagnostic assessment is $450. This includes the arborist visit, a written assessment report, and fertilization if it's determined to be appropriate for your tree's condition. The $450 is applied toward any subsequent tree work you approve.
How is this different from a free estimate?
A free estimate is scoped around work you already know you want done — removal, trimming, stump grinding. A diagnostic is for situations where something is wrong and you don't yet know what, or where you need a formal, documented assessment for insurance, legal, or property sale purposes. The diagnostic is deeper, more thorough, and produces a written report.
Why do tree problems involve multiple factors?
Trees don't decline from a single cause. What looks like a disease or pest problem is often a secondary issue — the insects or pathogens are attacking a tree already weakened by drought stress, root damage, soil compaction, poor pruning, or other factors. A proper diagnostic identifies the underlying stressors, not just the visible symptoms. Treating only the symptom rarely solves the problem.
Does my tree need a diagnostic or just a removal estimate?
If your tree is clearly dead, structurally failed, or you've already decided it needs to come down, a free removal estimate is the right next step. If you're unsure what's wrong, whether the tree can be saved, or if you need documentation for insurance or legal purposes — that's when a diagnostic is the right call. When in doubt, call us and we can help you decide.
What happens after the diagnostic?
You receive a written report with the arborist's findings and recommended next steps. There's no obligation to proceed with any work. If you do approve work, the $450 diagnostic fee is credited toward that job. We'll schedule the work at a time that works for you.