ArborProof

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Newmarket, Ontario · Updated September 2026

Best Tree Services in Newmarket

The three highest-scoring tree companies that serve Newmarket, ranked by ARB 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.

19companies serve Newmarket
9with WSIB clearance confirmed
5.8average ARB Score here

Newmarket’s top 3 by ARB Score

1

Forest Glenn Tree Care

Serves Newmarket, Sutton West, Keswick and Toronto

4.9 · 250 Google reviewsWSIB clearance not confirmed
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing
SpecializationsHighlighted: what they specialize in (up to 6)
Call (905) 722-9860Visit websiteFull profile →
11ARB Score

Score breakdown

Positive client experiences250 Google reviews
4
Compliance & transparencyInsurance proof and prices not posted yet
0
Years of experience25+ years in business
6
Education & trainingNo arborists listed in the ISA directory
0
Local & independentFounded in Canada
1

The ISA directory is opt-in, so a company may have certified arborists we can't see. Ask.

2

Timberscapes Tree & Plant Services

Serves Newmarket, Sutton West, Georgina, Keswick and Beaverton and more

4.9 · 373 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
SpecializationsHighlighted: what they specialize in (up to 6)
Call 905-251-7422Visit websiteFull profile →
10ARB Score

Score breakdown

Positive client experiences373 Google reviews
4
Compliance & transparencyWSIB clearance confirmed
1
Years of experience17 years in business
4
Education & trainingNo arborists listed in the ISA directory
0
Local & independentFounded in Canada
1

The ISA directory is opt-in, so a company may have certified arborists we can't see. Ask.

3

Alexander Tree Care

Serves Newmarket and Toronto

5.0 · 126 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
SpecializationsHighlighted: what they specialize in (up to 6)
Call 905-505-2577Visit websiteFull profile →
9ARB Score

Score breakdown

Positive client experiences126 Google reviews
3
Compliance & transparencyWSIB clearance confirmed
1
Years of experience15 years in business
4
Education & trainingNo arborists listed in the ISA directory
0
Local & independentFounded in Canada
1

The ISA directory is opt-in, so a company may have certified arborists we can't see. Ask.

Ties are broken by number of Google reviews. Alexander Tree Care and Green Leaf Tree Service are tied at 9.

More companies serving Newmarket

4Green Leaf Tree ServiceCentral Ontario/Cottage Country · 5.0 from 122 reviewsNot verified by businessWSIB confirmed95BigLeaf Tree ServiceMarkham · 4.8 from 117 reviewsNot verified by businessWSIB confirmed86Davey Tree Care Services (Northeast Toronto office)Markham · 4.9 from 37 reviewsNot verified by businessWSIB confirmed87Five Star Tree CareRichmond Hill · 4.8 from 84 reviewsNot verified by businessWSIB not confirmed78Davey Tree Care Services (Northwest Toronto office)VaughanNot verified by businessWSIB confirmed7See all 19 companies serving Newmarket on the map →
Before you cut

Newmarket’s private tree rules

Permit needed across the city

In Newmarket you need a Town permit to remove a private tree with a trunk 20 cm or wider, measured 1.4 m off the ground. Dead, dying and hazardous trees still need a permit, but there is no fee or replanting.

Whole town

Permit for trees 20 cm and up

Private Tree Protection By-law 2022-10 requires a permit to remove a tree 20 cm or wider. Heritage-designated trees also need approval under the Ontario Heritage Act.

Whole town

Dead, dying and hazardous trees

A permit is still required. Dead or dying trees need no arborist report or fee; hazardous trees need an arborist report but no fee. Neither needs replacement.

Whole town

Replant or pay

For healthy trees, plant a replacement or pay cash-in-lieu: $300 per tree for regular removals, or $450 per 6 cm of trunk not replanted for construction removals.

Town-owned trees

Boulevard trees belong to the Town

Trees on Town land, including boulevards, are cared for by the Town. Contact the Town before any work on or near them.

Woodlots

Woodlots have separate rules

Smaller woodlots fall under Newmarket's Woodlot By-law 2007-71, and larger woodlands under York Region's Forest Conservation By-law. The private tree permit does not apply there.

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
20 cm trunk width, measured 1.4 m off the ground
Permit fee
Administration fee by number of trees: $100 (1 tree), $300 (2–4), $1,000 (5–10), $5,000 (11+), plus $116.50 per tree application review, as published on the Town page (year of fee schedule not stated). No fees for dead, dying or hazardous trees.
Replacement trees
Non-construction: one replacement tree per tree removed or $300 cash-in-lieu per tree. Construction: aggregate inch method or $450 per 6 cm of trunk not replanted. None for dead, dying or hazardous trees.
Common exemptions
  • Trees under 20 cm
  • Trees regulated by the Town Woodlot By-law or York Region Forest Conservation By-law
  • Not-for-profit cemetery work
  • Emergency work on trees posing immediate risk after a storm
  • Fee/replacement waived (permit still required) for dead, dying or hazardous trees

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.

Town of Newmarket

905-895-5193Official 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
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.

How we pick Newmarket’s top 3

We rank every company whose service area includes Newmarket by ARB Score. The score counts Google reviews, WSIB clearance, published insurance and pricing, years in business, ISA-verified arborists and Canadian ownership. We look up everything except insurance and pricing, which a company tells us itself.

Tree services near Newmarket

AuroraRichmond HillVaughanMarkhamPickeringCaledon

ARB 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.