Service area · Laurentides
Attic insulation in Deux-Montagnes
In Deux-Montagnes, one home in five dates from before 1961, in a city that was called Saint-Eustache-sur-le-Lac until 1963. Isolation Cornerstone insulates those attics, and the visit is free.
Ten neighbourhoods, several eras
The city is divided into ten neighbourhoods: Grand-Moulin in the east, along the Mille Îles River, Du Lac in the south, on Lake of Two Mountains, Du Coteau in the north, and others in the middle. It split from Saint-Eustache in 1921 and took its current name in 1963.
House ages overlap: 20.5% from before 1961, 21.8% from 1961 to 1980, 39.1% from 1981 to 2000 and 18.6% from 2001 on. One neighbourhood can hold three generations of roofs.
- 20.5% Before 1961
- 21.8% 1961 to 1980
- 39.1% 1981 to 2000
- 18.6% Since 2001
Single-detached houses: 58.7% · semi-detached or row houses: 11.3%
Share of the 7,265 private households, 2021 census (Statistics Canada). Our office on rue Lacordaire is 36 km away, about 40 minutes by car.
A pre-1961 attic can be a stack of layers
Over the decades, one layer may be added to the next: old batts, a bit of insulation laid in later, sometimes vermiculite underneath. If you have seen silvery-gold granules up there, stay out of the attic: it can contain asbestos, and we never insulate over it.
FAQ
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- My house near the lake predates 1961: what is the visit like?
- The visit is free, at your address, and a written quote follows with no pressure. If you suspect vermiculite, don’t go up to check: describe to Isolation Cornerstone what you saw. It comes out first, safely.
- LogisVert vs. Rénoclimat: which one applies to attic insulation?
- LogisVert, from Hydro-Québec, covers roof insulation done together with caulking, in a house heated mainly with electricity. Rénoclimat, from the Québec government, requires an energy evaluation before and after the work, and can complement LogisVert when the work is separate. Each programme alone decides whether you qualify.
- Is the visit for the quote really free?
- Yes. Isolation Cornerstone comes to look at the attic at your address and gives you a written quote, at no charge and with no pressure.
Get your free quote
We come and look at your attic in Deux-Montagnes: the visit is free, and a written quote follows, with no pressure.
Or call us at (438) 544-6512