How to Choose a Tree Service (and Avoid Storm Chasers)

Tree work is one of the few home services where hiring badly can cost you more than the job. An uninsured crew that drops a limb through your roof leaves you holding the repair. A crew that tops your oak leaves you with a more dangerous tree and a removal bill in five years.

The vetting is not complicated, but it has to happen before the work, not after. Here is the checklist.

The non-negotiables

Three documents. Ask for all three, every time, from everyone, including crews you have used before.

1. Certificate of liability insurance. Covers damage the crew does to your property. Ask for the certificate direct from their insurance agent, not a PDF handed to you at the door - certificates are trivially easy to fake or to show after the policy lapsed. A legitimate contractor will have their agent email it to you without hesitation, and it takes an afternoon at most.

2. Workers' compensation. This is the one people skip, and it is the one with the largest downside. Tree work has one of the highest injury rates of any trade. If an uninsured climber is hurt in your tree, on your property, you can end up a party to that claim. Get the workers' comp certificate too. If a crew tells you they do not need it because everyone is a subcontractor, that is your answer - keep looking.

3. Written, itemized estimate. Not a number on the back of a card. See the section below for what it should contain.

More on why these two certificates carry real financial weight is in insurance and certificates: what actually protects you.

Credentials worth asking about

• ISA Certified Arborist. The International Society of Arboriculture credential. It means someone passed a real exam and maintains continuing education. For diagnosis, remove-or-save decisions, and anything involving a valuable tree, this is the credential that matters. Not every good climber has it, and not every certified arborist runs a good crew - but a company with none on staff is doing tree work without anyone trained in tree biology.
• TCIA accreditation. A company-level accreditation covering safety practices and business standards. Less common, meaningful when present.
• Local business license per your municipality's requirements.

Red flags

Any one of these is reason enough to get another quote. Several together, especially after a storm, is a storm chaser:

• Knocked on your door after a storm, unsolicited, with a truck full of equipment and out-of-state plates
• Cannot produce insurance certificates from an agent, or deflects the question
• Wants a large cash deposit up front, or cash only
• Pressures you to decide today on a price that expires
• Quoted you without walking the property or looking at the actual trees
• Offers to "top" a healthy shade tree - a practice no trained arborist recommends
• No written estimate, or one with no itemization
• Climbs with spikes on a tree being pruned rather than removed, which wounds the trunk unnecessarily
• Working without helmets or basic protective gear, which tells you what their safety program is
• The price is dramatically lower than everyone else. Tree work has real fixed costs - equipment, insurance, disposal. A number far below the field usually means one of those is missing, and insurance is the cheapest corner to cut

The post-storm door knock deserves its own warning. The crews that appear in a neighborhood the day after a windstorm, take deposits, and do partial or no work are a recurring pattern in Illinois after every major storm. If a tree is on your house, the urgency is real - but even then, ten minutes of verification is worth it. Our storm-damaged tree guide covers the safe sequence.

What a proper written estimate contains

Compare quotes on these items, not just the total:

• Which trees, identified clearly enough that there is no ambiguity on the day
• What work on each in plain language - full removal, deadwood only, crown reduction, clearance - not just "trim"
• Whether the stump is included, and if so, to what depth
• Whether wood, brush, and chips are hauled away or left, and where chips go if they stay. See what happens to the wood and chips
• Whether permits are the contractor's responsibility or yours. Several North Shore towns require one for healthy trees over a size threshold - see our permit guide
• Property protection - plywood over the drive, mats on the lawn, where equipment stages
• Payment terms. A modest deposit is normal on a large scheduled job; a large cash deposit before any work is not
• A timeline, even a rough one

If two quotes differ by a thousand dollars, the answer is almost always in this list. One of them includes the stump, or the haul-off, or the permit, and the other does not.

Questions worth asking

• Who is doing the work? The company you hired, or a subcontractor? If subcontracted, whose insurance covers it?
• How will you protect the lawn and the drive? Heavy equipment on soft spring ground does real damage.
• What is the plan if the weather turns on the scheduled day?
• Are you recommending anything I do not need? It is a direct question, and the answer tells you something. A good crew will readily tell you a tree is fine, that the stump in the back corner can stay, or that pruning solves it instead of removal.
• What is the timing recommendation? A crew that suggests waiting for dormant season when there is no urgency, rather than selling you work today, is telling you how they operate.

Getting comparable quotes

Two or three quotes is the right number. More than that and you are spending more time than the price difference.

To make them comparable, give every crew the same scope in writing: which trees, what you want done, and whether you want the stump out and the wood hauled. Vague scope is how you end up with three quotes that cannot be compared and a decision made on gut feel.

And read the quotes against the itemization list above before comparing totals. The cheapest number on the page is frequently the most expensive job once the stump, the haul-off, and the permit get added on the day.

Pricing context for what you should expect to see: tree removal cost by height, trimming and pruning cost, and stump grinding cost. Knowing the right names for the work helps you compare quotes on the same scope - see tree trimming vs. pruning. If you are vetting a crew on behalf of a board rather than a household, commercial and HOA tree service covers the extra documents to require.

Crews work across Evanston, Wilmette, Winnetka, Northbrook, Glenview, Park Ridge, and the northwest suburbs. For a written, itemized estimate with insurance documentation available on request, request a free on-site estimate - or use the online estimate tool for a quick range so you know what the field should look like.