Find the right tree service near you
Every company, checked against the public record
- Verify arborist credentials
- Check WSIB
- See pricing
- Check liability insurance
- Verify if Canadian founded
- Fact-check experience
Map
Ranked results
LEAF ScoreFrequently Asked Questions
What is a LEAF Score, and how is it calculated?
See LEAF Score Explained for the full breakdown. Every company can earn up to 10 leaves, one for each of:
- 50+ Google reviews (scaled down for arborist consultants)
- 5+ years in business
- Employing a Certified Arborist
- Employing a Tree Risk Assessment Qualification holder
- Employing a Board Certified Master Arborist
- A certificate of insurance on file
- Valid WSIB clearance
- Transparent pricing
- Verifying their own listing
- Being founded in Canada
Can a company pay to rank higher?
No. Money will never buy position on this website. No matter how much a company spends on marketing, it cannot buy a higher score. A higher score can only be earned through education, experience and client satisfaction.
I know (insert name) is a (insert credential) with (insert company). Why doesn’t this show up in ArborProof’s records?
It is highly likely that this person has not updated their profile with the International Society of Arboriculture. Specifically, they MUST state in their profile the website for the company that they work for. It isn’t enough for them to be a credentialed arborist, that credential MUST be linked to a company otherwise we cannot verify it.
Are arborists licensed in Canada?
In most parts of the country, no. That’s one of the main reasons we created this directory: to help the public understand each company, what it’s capable of, and whether it has “crossed its t’s and dotted its i’s.”
What is WSIB clearance / workers’ compensation, and why should I care?
Search for the most dangerous jobs in North America and working around trees, as a forester or arborist, is usually near the top of the list. That’s why proper coverage matters. If a worker is injured on your property and there’s no coverage, you could be exposed. WSIB / workers’ compensation is also separate from liability insurance, which covers damage to your property, so it’s worth asking for both.
What is the difference between an arborist consultant and a tree service company?
A lot.
A tree service company does the hands-on work: pruning, removals, stump grinding, planting, cabling and bracing, storm cleanup and more. If you need someone who is guaranteed to dig in and get their hands dirty, hire a tree service company.
If you want an independent opinion first, or need a report for the city or a dispute, it’s usually best to work directly with a consultant.
In either case, it helps to make sure you’re working with a Certified Arborist or Board Certified Master Arborist.
Can I trust the information on this website?
We work hard to keep every profile accurate, but we can’t promise it’s perfect. Our information comes from public sources: each company’s own website, the International Society of Arboriculture (ISA) directory, WSIB clearance records, and Google reviews. We can misread or miss something, and companies change over time.
If anything on a profile is wrong or out of date, the company can verify its listing and update it for free, or email us at hello@arborproof.ca. We review every correction request and fix confirmed errors promptly.
Please check anything important, such as insurance or credentials, directly with the company before you hire.
Articles
What to check before you hire, what the rules are, and when to do the work.

How to choose the right tree service company
Consulting arborist or tree service? What each one does well, and three things to check before you hire: reviews, experience and credentials — plus WSIB and insurance.

Is the title of “Certified Arborist” being abused?
100 Ontario tree companies claim a Certified Arborist we couldn’t confirm, and 35 show the ISA badge without the name and badge number the ISA requires. How to check before you hire.

State of arborist companies in Ontario, Fall 2026
We checked 485 Ontario tree companies. 37.7% say they employ an ISA Certified Arborist, but we could confirm one at only 20.8% — and only 38% have a WSIB clearance we could verify.

Insurance and trees: what to know
What to do in the hours after a tree comes down — check everyone is safe, photograph everything, and call your insurer before any cleanup starts. Covers whose tree it was, and what a claim does to your coverage afterward.

Ontario urban tree laws, explained
The Municipal Act lets every Ontario municipality write its own rules on removing a tree, so there is no single province-wide law. Provincial law and court rulings can still override what your city permits.

Do tree services give free quotes?
Almost always — but free is not the same as unbiased, since a company that profits from the work has a reason to recommend it. When a paid arborist assessment is worth paying for instead.
Tree services by city
The top-rated tree companies in every Ontario city of 50,000 people or more, plus each city’s tree bylaw explained.
- Ajax
- Aurora
- Barrie
- Belleville
- Brampton
- Brantford
- Burlington
- Caledon
- Cambridge
- Chatham-Kent
- Clarington
- Greater Sudbury
- Guelph
- Halton Hills
- Hamilton
- Kawartha Lakes
- Kingston
- Kitchener
- London
- Markham
- Milton
- Mississauga
- Newmarket
- Niagara Falls
- Norfolk County
- North Bay
- Oakville
- Oshawa
- Ottawa
- Peterborough
- Pickering
- Richmond Hill
- Sarnia
- Sault Ste. Marie
- St. Catharines
- Thunder Bay
- Toronto
- Vaughan
- Waterloo
- Welland
- Whitby
- Windsor
Services guide
What each tree service involves, when you need it, and what it typically costs in Ontario.
Pruning
Tree health and support
Safety and emergencies
Reports, permits and disputes
Land and site work
Education and advocacy
WOOD CHIPS
Arborist credentials, explained
What ISA’s arborist credentials actually require, and what they don’t tell you.