Home builders in this category handle work that goes beyond a single-room refresh: full custom builds, second-storey additions, garage conversions, whole-house gut renovations, and major structural changes that touch framing, foundations, or the roofline. In Mississauga, that often means navigating the city's permitting process for additions and new builds, coordinating trades across a longer timeline, and managing a project that can run from a few months to over a year depending on scope.
What to look for before you hire
Start with licensing and insurance: a builder working on structural changes should carry proper liability coverage and, where required, be registered with Tarion for new home warranty coverage. Ask to see permits pulled for past jobs of similar size, not just photos of finished work. Get a written contract that spells out allowances for materials, a payment schedule tied to milestones rather than dates, and a clear process for handling change orders once walls are open and surprises turn up.
Talk to at least one past client whose project matches yours in size and complexity. A builder who's great at a kitchen remodel isn't automatically the right fit for a second-storey addition, and vice versa.
How we score builders
Our ranking weighs review consistency over time, how builders respond to complaints, the range and scale of projects they take on, and verifiable credentials. See the full breakdown of factors in our methodology, or jump straight to the ranked guide to Mississauga renovation contractors to compare the 13 builders side by side.
