ArborProof

Fact-checking tree companies.

London, Ontario · Updated September 2026

Best Tree Services in London

The three highest-scoring tree companies that serve London, 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.

28companies serve London
8with WSIB clearance confirmed
2.8average leaves here

London’s top 3 by LEAF Score

1

Koala Tree

Serves London, Komoka, Delaware and Strathroy

4.8 · 51 Google reviewsWSIB clearance not confirmed
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing

Specializations

Tree removal (small)Tree removal (large)Tree pruning (small)Tree pruning (large)Hedge trimming (medium and large)Stump grinding (small)Stump grinding (large)Tree planting (small)Tree planting (large)Cabling & bracingFertilizationHydro line clearance24/7 emergency serviceCrane servicesOn-site consultationLegal / bylaw dispute assistanceArborist reportsTree protection plansTree risk assessmentTree appraisalAir excavationPest & disease treatmentLand clearingEducation and advocacyWood chips - UNrefined - LARGE quantityWood chips - Refined - LARGE quantity

Pricing

Tree pruning (large)
*Based on 8.5 hour day with 3 staffDay Rate* $3,000
Cabling & bracingStarting at $500
Arborist reportsStarting at $150
Tree risk assessmentStarting at $150
Inferred from our research — not yet confirmed by the businessNot inferred — ask directly
Visit websiteFull profile →
6/10LEAF Score

Score breakdown

50+ Google reviews51 Google reviews
5+ years in business6 years in business
Employs a Certified Arborist1 ISA Certified Arborist
Jason Korkidakis, Certified Arborist, ON-3263A See certificate →
Employs a Tree Risk Assessment Qualification holder1 with Tree Risk Assessment Qualification
Jason Korkidakis, Tree Risk Assessment Qualification See certificate →
Employs a Board Certified Master ArboristNone confirmed
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 clearanceNo WSIB account found under this business name
Transparent pricingNot posted
Verified their own listingNot yet confirmed
Founded in CanadaFounded in Canada
2

Tri-County Tree Service (Grand Bend Inc.)

Serves London and Grand Bend

4.8 · 22 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

Specializations

Tree removal (small)Tree removal (large)Tree pruning (small)Tree pruning (large)Hedge trimming (medium and large)Stump grinding (small)Stump grinding (large)Tree planting (small)Tree planting (large)Cabling & bracingFertilizationHydro line clearance24/7 emergency serviceCrane servicesOn-site consultationLegal / bylaw dispute assistanceArborist reportsTree protection plansTree risk assessmentTree appraisalAir excavationPest & disease treatmentLand clearingEducation and advocacyWood chips - UNrefined - LARGE quantityWood chips - Refined - LARGE quantity
Inferred from our research — not yet confirmed by the businessNot inferred — ask directly
Visit websiteFull profile →
5/10LEAF Score

Score breakdown

50+ Google reviews22 Google reviews
5+ years in business15 years in business
Employs a Certified Arborist1 ISA Certified Arborist
Jesse Alan Kadlecik, Certified Arborist, ON-1898A See certificate →
Employs a Tree Risk Assessment Qualification holder1 with Tree Risk Assessment Qualification
Jesse Alan Kadlecik, Tree Risk Assessment Qualification See certificate →
Employs a Board Certified Master ArboristNone confirmed
Certificate of insurance on fileNot posted
Valid WSIB clearanceWSIB clearance confirmed
Matched WSIB account: TRI-COUNTY TREE SERVICE GRAND BEND INC. / TRI-COUNTY TREE SERVICE See certificate →
Transparent pricingNot posted
Verified their own listingNot yet confirmed
Founded in CanadaFounded in Canada
3

CLC Tree Services Ltd.

Serves London

4.9 · 209 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

Specializations

Tree removal (small)Tree removal (large)Tree pruning (small)Tree pruning (large)Hedge trimming (medium and large)Stump grinding (small)Stump grinding (large)Tree planting (small)Tree planting (large)Cabling & bracingFertilizationHydro line clearance24/7 emergency serviceCrane servicesOn-site consultationLegal / bylaw dispute assistanceArborist reportsTree protection plansTree risk assessmentTree appraisalAir excavationPest & disease treatmentLand clearingEducation and advocacyWood chips - UNrefined - LARGE quantityWood chips - Refined - LARGE quantity
Inferred from our research — not yet confirmed by the businessNot inferred — ask directly
Visit websiteFull profile →
5/10LEAF Score

Score breakdown

50+ Google reviews209 Google reviews
5+ years in business38 years in business
Employs a Certified Arborist1 ISA Certified Arborist
Calvin McCallum, Certified Arborist, ON-1295A See certificate →
Employs a Tree Risk Assessment Qualification holderNone confirmed
Employs a Board Certified Master ArboristNone confirmed
Certificate of insurance on fileNot posted
Valid WSIB clearanceWSIB clearance confirmed
Matched WSIB account: CLC TREE SERVICES LTD. 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.

More companies serving London

4ConservaTree Inc.London · 4.7 from 31 reviewsNot verified by businessWSIB not confirmed4/105Groves Tree ServiceLondon · 5.0 from 31 reviewsNot verified by businessWSIB confirmed4/106Wright's Tree Care Inc.London · 5.0 from 71 reviewsNot verified by businessWSIB not confirmed4/107Stumps 'R' UsLondon · 4.8 from 357 reviewsNot verified by businessWSIB confirmed4/108Woodland Tree ServicesLondon · 5.0 from 76 reviewsNot verified by businessWSIB confirmed4/10See all 28 companies serving London on the map →
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

London’s private tree rules

Permit needed across the city

In London's urban area you need a City permit to cut down a private tree 50 cm or wider, measured 1.4 m off the ground. In mapped Tree Protection Areas, trees of any size need a permit.

Inside the Urban Growth Boundary

Big trees need a permit

A private tree 50 cm or wider (measured 1.4 m off the ground) is a 'Distinctive Tree'. You need a permit to remove it, even if it is dead. An arborist fills in part of the application.

Tree Protection Areas

Trees of any size are protected

Some areas, mostly natural and wooded areas, are mapped as Tree Protection Areas. Trees of any size there need a permit. Email trees@london.ca before starting work.

Replanting

Removed trees must be replaced

If a healthy Distinctive Tree is removed, you must plant replacement trees on the same property: 1 tree for a 50 cm trunk, rising to 11 trees for trunks over 141 cm. If there is no room, the City charges $350 per tree not planted.

City boulevard trees

Hands off city trees

Trees on the City boulevard are protected by a separate by-law. You need written permission from the City to remove or damage one, and removal fees are based on trunk size. Fines start at $500.

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
50 cm measured 1.4 m off the ground (inside the Urban Growth Boundary); any size in Tree Protection Areas
Replacement trees
Required for healthy Distinctive Trees: 1 replacement tree for a 50 cm trunk, 2 for 51-60 cm, up to 11 for over 141 cm; $350 per tree paid to the City if replacements cannot fit on site.
Common exemptions
  • Hazardous trees posing an immediate threat to health or safety
  • Trees inside buildings, solariums or courtyards
  • Removal required to carry out an issued building permit
  • Normal farm practices
  • Dead Distinctive Trees still need a (simpler) permit

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 London Forestry (trees@london.ca)

519-661-5783Official information page →

Summary checked September 2026. It’s a plain-language guide, not legal advice. Bylaws change, so confirm with the municipality before you remove a tree.

Sources
A gutter with a guard on top. Wet leafs pile up on the guard and carry rain water over the front edge of the gutter instead of into it, so guards still need to be cleared from time to time.
Homeowner question

Do gutter guards work against leafs?

They can help, but it is important to understand that they are not a cure-all. Having a gutter guard does not mean the gutters will never need to be inspected and cleared of leafs from time to time.

This is particularly the case when leafs get wet and accumulate. The leafs can sit on the gutter guard and act as a bridge, carrying the water right over the top of the gutter.

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.

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.

Tree services near London

Norfolk CountyWaterlooKitchenerBrantfordCambridgeSarnia

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.