Mississauga has 30 landscaping companies listed in this category, all operating with some form of business license and liability coverage. That combination matters more than it sounds like it should. A licensed contractor has registered a legitimate business with the city or province, which gives you a paper trail if something goes wrong. Insurance, specifically general liability and WSIB coverage for their crew, means you're not on the hook if a worker gets hurt on your property or if a retaining wall collapses and damages a neighbor's fence.
Landscaping work touches your property in ways that are hard to undo cheaply: grading that affects drainage, retaining walls that hold back soil, irrigation lines that run under your lawn, tree removal near power lines or foundations. Any of these can go wrong in a way that costs thousands to fix. A company without proper coverage might quote lower, but you're absorbing that risk yourself.
Before hiring, ask to see the actual certificate of insurance (not just a verbal assurance), confirm it's current, and check that the policy limit is reasonable for the scope of your project. For anything involving structural work like walls or major grading, ask whether they pull permits when required.
Our ranked guide to Mississauga landscapers scores every company on verified licensing and insurance status alongside review quality, responsiveness, and consistency of work over time. The full scoring breakdown is on our methodology page.