Chimney work covers more than sweeping soot out of a flue. In Mississauga it usually means dealing with what freeze-thaw cycles do to brick and mortar over a winter: spalling face brick, cracked crowns, and mortar joints that need repointing. It also covers flashing repair where the chimney meets the roofline (a common leak point on older homes in areas like Streetsville, Port Credit, and Erindale), liner installation or relining for wood-burning and gas appliances, chase cover and cap replacement, and waterproofing to keep masonry from absorbing water in the first place.
What to look for in a contractor
Ask whether the company holds WETT certification if you have a wood-burning appliance, since that matters for insurance and safety inspections. Confirm they carry liability insurance, provide a written estimate that breaks down materials versus labour, and stand behind repointing or flashing work with a warranty. A contractor who takes photos during the inspection and explains what they found before recommending a rebuild is usually worth more than one who quotes a price over the phone.
With 85 businesses listed in this category, we score each one on verified licensing and insurance, review consistency over time, and how they respond to customer questions, using the same criteria explained on our methodology page. For a ranked shortlist of roofing contractors who also handle chimney work well, check our best roofing contractors in Mississauga guide.