ArborProof

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Sarnia, Ontario · Updated September 2026

Best Tree Services in Sarnia

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

7companies serve Sarnia
3with WSIB clearance confirmed
4.4average ARB Score here

Sarnia’s top 3 by ARB Score

1

Davey Tree Care Services (Strathroy office)

Serves Sarnia, Chatham-Kent, Grand Bend, Kingsville and Leamington and more

4.7 · 40 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
8ARB Score

Score breakdown

Positive client experiences40 Google reviews
1
Compliance & transparencyWSIB clearance confirmed
1
Years of experience25+ years in business
6
Education & trainingNo arborists listed in the ISA directory
0
Local & independentNot founded in Canada
0

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

2

CJL Tree Service

Serves Sarnia, Petrolia and Corunna

4.4 · 5 Google reviewsWSIB clearance not confirmed
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing
7ARB Score

Score breakdown

Positive client experiences5 Google reviews
0
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.

3

Guardian Tree Systems Inc.

Serves Sarnia

4.6 · 28 Google reviewsWSIB clearance not confirmed
Not yet verified by the businessThese details come from our own research. Is this your business? Claim this listing
6ARB Score

Score breakdown

Positive client experiences28 Google reviews
1
Compliance & transparencyInsurance proof and prices not posted yet
0
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.

More companies serving Sarnia

Before you cut

Sarnia’s private tree rules

No permit needed for private trees

You do not need a City permit to remove a tree on your own property in Sarnia. City boulevard trees are protected, and large woodlands fall under a Lambton County by-law.

Whole city

No private tree permit

The City says you do not need a permit to remove a tree on your private property. Council rejected a proposed private tree by-law in late 2017.

City boulevard trees

Don't cut City trees

Trees on City property, including boulevards, are protected by the Protection of City Trees By-law. Do not remove, prune or damage them; contact the City instead.

All of Lambton County

Woodlands 1 hectare and larger

The County of Lambton Woodlands Conservation By-law covers wooded areas of about 1 hectare (2.5 acres) or more. You must file a Notice of Intent before cutting. Most house lots are too small to be affected.

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.

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 Sarnia Customer Service

519-332-0330Official information page →
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 Sarnia’s top 3

We rank every company whose service area includes Sarnia 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 Sarnia

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.