Service area · Lanaudière
Attic insulation in L’Assomption
In L’Assomption, 11.4% of homes were built before 1961, and the town centre sits on a peninsula shaped by the meanders of the river. Isolation Cornerstone visits those attics for free, then sends a written quote.
- 11.4% Before 1961
- 20.6% 1961 to 1980
- 27.3% 1981 to 2000
- 40.8% Since 2001
Single-detached houses: 59.7% · semi-detached or row houses: 10.4%
Share of the 9,205 private households, 2021 census (Statistics Canada). Our office on rue Lacordaire is 34.9 km away, about 33 minutes by car.
On the peninsula, the oldest attics
The area was settled between 1670 and 1700, and the central part of the town sits on a peninsula that the L’Assomption River draws in meanders. About one home in nine dates from before 1961.
In the attic of a house that age, the insulation can be stacked layer on layer, yellowed batts under newer ones. Vermiculite is possible there: if you have glimpsed silvery-gold granules, do not touch them and do not climb up to check. It comes out before any insulating, safely, and we never insulate over it.
Saint-Gérard-Majella, joined to the town in 2000
The former parish municipality of Saint-Gérard-Majella was annexed in 2000. The census gives the rest of the stock a different look: 40.8% of homes date from after 2001, and 73.8% of households own their home. A depth ruler set in the insulation after the work lets you read the thickness yourself.

FAQ
The questions we get the most
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- Can my duplex in central L’Assomption get LogisVert?
- No, as a rule. LogisVert excludes condos, multiplexes and apartment buildings, and a duplex is a multiplex. The measure targets single-family, semi-detached or row houses heated mainly with electricity, and Hydro-Québec decides.
- 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.
- How long does the work take?
- The exact time is given with the quote, once the attic has been seen. On the day of the work, the house is protected with tarps and cleaned before the crew leaves.
Get your free quote
We come and look at your attic in L’Assomption: the visit is free, and a written quote follows, with no pressure.
Or call us at (438) 544-6512