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Basement Spray Foam Insulation in Mississauga
Insulating the part of the house most exposed to moisture
Basements present a different problem than the rest of a house: the walls are in direct contact with soil, moisture is more common, and temperature swings between the basement and the rest of the home can be significant. Fibreglass batts against a foundation wall can trap moisture against the concrete, which is one of the more common causes of mould and musty basements in older homes. Explore our residential spray foam insulation services for related applications and service areas.
Closed-cell spray foam is applied directly to the foundation wall, insulating and creating a moisture-resistant barrier in the same step, without the air gap and vapour issues that come with batt insulation in this application.
Rim joists
The rim joist, the band of framing around the top of the foundation where the floor structure sits, is one of the most commonly missed areas in basement insulation. It’s often left uninsulated even when the rest of the basement has been finished, and it’s a significant source of both heat loss and cold floors on the level above.
Finished versus unfinished basements
In an unfinished basement, foundation walls and rim joists are directly accessible, which makes for a straightforward job. In a finished basement, insulating means working behind existing drywall or removing sections of it first. It’s more involved, but often worth doing during a basement renovation when the walls are already open.
What the job involves
A technician assesses moisture conditions, existing insulation, and wall condition before quoting. Any active water infiltration typically needs to be addressed separately before insulation goes in, since foam isn’t a substitute for waterproofing a wall that’s actively leaking.
Areas we serve
Mississauga, Toronto, Peel Region, Halton Region, Oakville, Burlington, Brampton, Milton, Georgetown, Erin, Caledon, and Guelph.
Get a quote for basement insulation in Mississauga
Call or text 416-855-3626 or email contact@foamworks.ca.
Frequently Asked Questions
Foam needs a reasonably dry surface to bond properly. Active leaks or persistent dampness typically need to be resolved first; Foamworks can advise on this during the site visit.
Yes, particularly when the rim joist is included. A cold, uninsulated rim joist is a common cause of cold floors directly above the basement.
Often, yes. It’s usually done early in a basement finishing project, before drywall goes up, since that’s when the foundation walls and rim joist are most accessible.
Ready to discuss your project?
Talk with Foamworks about basement spray foam insulation for your Mississauga property.