Attic insulation, spray foam, blown-in wall insulation and basement rim joist sealing for Guelph homes — the upgrades that actually move the needle on winter heating bills and summer attic heat.
Most Guelph homes lose the most heat through the attic and the basement rim joist — the two areas that are cheapest to fix and easiest to overlook. Before recommending anything, we look at what's actually there now, because topping up an already-decent attic is a very different job (and a very different price) than starting from bare joists.
Topping up or fully insulating attic spaces with blown-in or batt insulation to current recommended levels.
Spray foam for rim joists, additions and areas where an air seal matters as much as the R-value.
Dense-pack cellulose or fiberglass blown into existing wall cavities without opening up drywall.
The band around the top of the foundation is one of the biggest, cheapest-to-fix heat leaks in an older home — sealed and insulated in a single visit.
Old, damaged or rodent-affected insulation removed and replaced — common in older attics that have never been touched.
We'll point you toward whatever provincial, utility or municipal insulation rebate programs are currently available — programs change, so we check before quoting rather than assuming last year's rules still apply.
A lot of older homes, a lot of underinsulated attics. Guelph's older neighbourhoods have plenty of homes with attic insulation well below current recommended levels — often the single highest-return upgrade in the house, and one most owners have never had assessed.
Rim joists are the most-skipped fix. The basement rim joist is a common cold spot and draft source that's inexpensive to seal properly but gets missed because nobody thinks to check it. We look at it on every basement-adjacent quote.
Rebate programs shift year to year. Utility and government insulation rebate programs change eligibility and funding levels over time — we check current program status before finalizing a quote rather than quoting against a program that's since closed.
If your attic insulation is old, uneven, or you can see joists through it, it's likely below current recommended levels. We'll assess it as part of the quote.
Spray foam air-seals as it insulates, which makes it the better choice for rim joists and gaps; blown-in is more cost-effective for large open areas like attics. We'll recommend the right one for each area, not the same thing everywhere.
Sometimes, depending on current provincial, utility or municipal programs — these change over time, so we check what's actually available before quoting rather than assuming.
Yes, in most cases — blown-in insulation is installed through small access holes that get patched afterward, no drywall demo needed.
An attic top-up is usually done in a day; rim joist sealing and wall insulation depend on the size of the house — we'll give you a real timeline with the quote.
Tell us what you need and you'll hear back with a written quote.
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