ArborProof

Fact-checking tree companies.

Mississauga, Ontario · Updated September 2026

Best Tree Services in Mississauga

The three highest-scoring tree companies that serve Mississauga, ranked by LEAF Score. Every company in Ontario is checked the same way, on insurance coverage, arborist credentials, experience and reviews. No company can pay to be at the top of this page.

47companies serve Mississauga
25with WSIB clearance confirmed
3.4average leaves here

Mississauga’s top 3 by LEAF Score

1

Brent Hocking Consulting Arborist

Serves Mississauga, Burlington, Hamilton, Oakville and Toronto

5.0 · 5 Google reviewsWSIB clearance confirmed · to Nov 19, 2026
Verified by BusinessThe business confirmed these details on October 29, 2026.
8/10LEAF Score

Score breakdown

10+ Google reviews5 Google reviews
5+ years in businessNo reliable figure found
Employs a Certified Arborist1 ISA Certified Arborist (including Board Certified Master Arborists)
Employs a Tree Risk Assessment Qualification holder1 with Tree Risk Assessment Qualification
Brent Hocking, Tree Risk Assessment Qualification See certificate →
Employs a Board Certified Master Arborist1 Board Certified Master Arborist
Brent Hocking, Board Certified Master Arborist, ON-2667B See certificate →
Certificate of insurance on fileValid until September 1, 2027
We have verified insurance this year, but the policy may have changed. Verify with the company.
Valid WSIB clearanceWSIB clearance confirmed
Matched WSIB account: BRENT HOCKING / BRENT HOCKING CONSULTING ARBORIST See certificate →
Transparent pricingPricing posted
Verified their own listingConfirmed by the business
Founded in CanadaFounded in Canada
2

Heritage Tree Care Inc.

Serves Mississauga and Toronto

5.0 · 417 Google reviewsWSIB clearance confirmed · to Nov 19, 2026
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing
7/10LEAF Score

Score breakdown

50+ Google reviews417 Google reviews
5+ years in business20 years in business
Employs a Certified Arborist1 ISA Certified Arborist (including Board Certified Master Arborists)
Employs a Tree Risk Assessment Qualification holder1 with Tree Risk Assessment Qualification
Joseph Gillingham, Tree Risk Assessment Qualification See certificate →
Employs a Board Certified Master Arborist1 Board Certified Master Arborist
Joseph Gillingham, Board Certified Master Arborist See certificate →
Certificate of insurance on fileNot posted
Valid WSIB clearanceWSIB clearance confirmed
Matched WSIB account: HERITAGE TREE CARE INC. See certificate →
Transparent pricingNot posted
Verified their own listingNot yet confirmed
Founded in CanadaFounded in Canada
3

Diamond Tree Care & Consulting Inc

Serves Mississauga, Halton Hills, Toronto, Brampton and Burlington and more

4.8 · 185 Google reviewsWSIB clearance confirmed · to Nov 19, 2026
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing
6/10LEAF Score

Score breakdown

50+ Google reviews185 Google reviews
5+ years in business31 years in business
Employs a Certified Arborist2 ISA Certified Arborists
Cody Menken, Certified Arborist See certificate →
Dale Thomas Menken, Certified Arborist See certificate →
Employs a Tree Risk Assessment Qualification holder1 with Tree Risk Assessment Qualification
Cody Menken, Tree Risk Assessment Qualification See certificate →
Certificate of insurance on fileNot posted
Valid WSIB clearanceWSIB clearance confirmed
Matched WSIB account: DIAMOND TREE CARE & CONSULTING INC See certificate →
Transparent pricingNot posted
Verified their own listingNot yet confirmed
Founded in CanadaFounded in Canada

Ties are broken by number of credentials (each Certified Arborist, Board Certified Master Arborist and Tree Risk Assessment Qualification holder counts, so someone with two counts twice), then Google reviews. Diamond Tree Care & Consulting Inc and Wildwood Tree Services Ltd are tied at 6/10 leaves.

More companies serving Mississauga

A year strip of months. Late summer to early fall is the best time to plant, spring is acceptable with a little more risk, and midsummer planting is the greatest risk because the tree may not be watered.
Homeowner question

When is the best time to plant a tree?

The goal is usually to give the tree as much time to establish as possible before summer drought. Therefore, late summer to early fall is the best time of year. Spring is acceptable as well; it just carries a little more risk. Summer planting is the greatest risk to the tree, in part because many Ontarians vacation and the tree may not get watered while they are away.

Before you cut

Mississauga’s private tree rules

Permit needed across the city

In Mississauga you need a City permit to remove or damage any private tree with a trunk 15 cm (6 inches) or wider, measured 1.4 m off the ground. City-owned trees can't be pruned, damaged or removed without a permit.

Whole city

Private trees 15 cm and up need a permit

A permit is needed to injure or remove any private tree 15 cm or wider, measured 1.4 m off the ground. Dead or dying trees (including all ash trees) still need a permit, but there is no fee.

Whole city

Plant a new tree for every 15 cm removed

You must plant one replacement tree for every 15 cm of trunk removed, and pay a security deposit that is returned after a one-year check.

City-owned trees

City trees: permit even to prune

Under the Public Tree Protection By-law you cannot injure, remove or prune a City tree without a permit. Call 311 about boulevard trees.

All of Peel Region

No separate regional tree by-law found

We found no Peel Region-wide tree or woodland by-law; Mississauga's own by-laws apply.

Anywhere in Ontario

Trees on a property line

A tree whose trunk sits on the line belongs to both neighbours. Ontario’s Forestry Act says you need your neighbour’s consent before removing or injuring it.

Size limits, fees, replacement trees and exemptions
Which trees need a permit
15 cm measured 1.4 m off the ground
Permit fee
As currently published (city page, 2026): $399.77 base permit fee (HST incl.) plus $139.72 for each additional healthy tree or public tree. No fee for dead or dying trees, including ash.
Replacement trees
One replacement tree for every 15 cm of trunk removed; native shade tree at least 6 cm trunk (deciduous) or 1.8 m tall (evergreen); refundable security deposit held for one year.
Common exemptions
  • Trees under 15 cm
  • Emergency work
  • Pruning to good arborist standards
  • Rooftop gardens
  • Nurseries and golf courses
  • Work required by an approved development/site plan or a property standards order
  • Utility work

Not sure if you need a permit?

Ask the municipality before any work starts. A good tree company will also check for you and tell you who applies for the permit.

City of Mississauga Forestry (311)

311 (905-615-4311 outside city limits)Official information page →
The same tree twice. In winter with the leafs off, an arborist sees the branch structure, joints, cracks and dead limbs. With the leafs on, they see leaf health, dieback and pests.
Homeowner question

Should an arborist assess a tree with the leafs on or off?

Both views have their pros and cons. In the winter an arborist can see the overall structure of the tree better. If there are splits in branches, we can see them more clearly. The downside is that sometimes it is a little harder to see which branches are dead or alive.

Bottom line: if you think your tree needs to be assessed, don't let the time of year stop you from reaching out to an arborist.

Before you hire

What to check before you hire a tree service

Tree work is dangerous, and it’s expensive to fix when it goes wrong. Six questions worth asking any company, including the ones on this page.

  1. Ask for a WSIB clearance certificate and proof of liability insurance

    Tree work is one of the most dangerous jobs out there. We do our best on our end, but these certificates can change before we have a chance to update them. Some good companies will give them to you without you even having to ask. Bonus!

  2. Find out who will actually do the work

    You may get a Certified Arborist as your salesperson, but will the same be true of the person who works on your property? You won't know until you ask. A Certified Arborist may cost more, but it can cost a lot more if the work is done wrong and the tree dies early or your property is damaged.

  3. Get the quote in writing

    It should say exactly which trees, and whether cleanup, wood removal, stump grinding and so on are included. The more detailed the quote, the better.

  4. Ask who handles the permit

    If a bylaw applies, agree up front who applies for the permit and who pays the fee. Removing a protected tree without one usually means a fine for the property owner, not the tree company.

  5. If money is tight, try this

    See if the work can be scheduled in a slower season for a lower price. Clear obstacles (fences, gates, lawn ornaments, plants) before the crew arrives. Find someone online, such as on Facebook Marketplace, who will take the wood for free. Or change the scope of work, for example pruning only the lower half of the tree instead of the whole tree.

  6. Trees near power lines are a utility job

    If branches touch or come close to a hydro line, call your local hydro utility (the one on your electricity bill) first. Only crews the utility approves can work near power lines.

Two views of a tree next to a house. On the left a branch touches the roof. On the right the branch has been cut back to a side branch just outside the branch collar so it no longer touches.
Homeowner question

If a tree is rubbing against a house, how far back should it be pruned?

Evergreens typically grow more slowly, so they don't need as much clearance. Most deciduous trees should be pruned back approximately 2 metres (6 to 7 feet) from the house.

We caution against clearing too much from the house side. It can injure the tree and pose a greater risk to your house. For example, if a high branch breaks, there is no lower branch for it to get caught on.

Tree services near Mississauga

LEAF Scores reflect public records and research on the date checked. Always confirm insurance, certification and WSIB coverage directly with a company before you hire it.