Hiring the wrong tree service company can result in damaged property, injured workers on your land, poorly executed work that harms your trees, and even legal liability. Every year in the West Island, homeowners deal with the aftermath of unlicensed operators who left behind topped trees, gouged lawns, and unfinished jobs. Choosing the right arborist is not difficult if you know what to look for, and spending a few minutes vetting candidates can save you thousands in the long run.
ISA Certification and Proper Training
The International Society of Arboriculture (ISA) certifies arborists who have demonstrated knowledge of tree biology, diagnosis, maintenance, and safety practices. An ISA Certified Arborist has passed a comprehensive exam and maintains ongoing education. While certification is not legally required in Quebec, it is the industry standard for competence. Ask any company you are considering whether they employ ISA-certified arborists and request the certification number — you can verify it on the ISA website. A company that invests in certification is a company that takes its craft seriously.
Insurance and CNESST Compliance
This is non-negotiable. Any tree service working on your property must carry commercial general liability insurance — typically a minimum of two million dollars — and workers' compensation through the CNESST (Quebec's workplace safety board). If an uninsured worker is injured on your property, you could be held liable. If an uninsured company drops a branch through your neighbour's roof, you could be on the hook. Always ask for a copy of the insurance certificate and verify the CNESST registration. Legitimate companies are happy to provide this documentation without hesitation.
Red Flags to Watch For
Several warning signs should make you walk away immediately. Door-to-door solicitation is a major red flag — reputable arborists do not need to knock on doors looking for work. Companies that insist on cash-only payment and cannot provide a written contract are operating in the grey market. Anyone who recommends topping your trees is either unqualified or dishonest — topping is universally condemned by the arboricultural community as harmful to tree health. Extremely low quotes that seem too good to be true usually are — they often mean the company will cut corners on safety, cleanup, or stump removal.
Questions to Ask Before Hiring
Before committing, ask these questions: Do you carry liability insurance and CNESST coverage? Can I see proof? Do you have ISA-certified arborists on staff? Will you provide a written estimate with a detailed scope of work? Do you handle municipal permits if tree removal requires one? What is your cleanup process — do you remove all debris, or is that extra? Can you provide references from recent West Island jobs? Getting answers to these questions upfront eliminates most bad actors and ensures you are comparing companies on a level playing field. Always get at least two or three quotes for any significant job.
Why Local Matters
A tree service based in the West Island understands the local soil conditions, common tree species, municipal bylaws, and seasonal challenges that out-of-town operators simply do not. Local companies depend on their reputation in the community, which means they have a strong incentive to do quality work and treat your property with respect. At Service d'Arbres Brandse, we have been serving homeowners across the West Island for years and our reputation is everything to us. We are fully insured, CNESST-compliant, and always happy to answer questions before you commit. Call us at (438) 365-5410 for a free, no-pressure estimate.