Insulation and soundproofing
Comfort You Can Feel in Every Season.
Home Renovation Contractors insulates and soundproofs homes across Greater Montreal, Laval, Longueuil and the North and South Shores.
Heat escapes mostly through air leaks, attics and uninsulated basement walls. Sealing leaks and insulating the right places usually does more for comfort than any single upgrade.
In plexes and condos, noise travels through floors and shared walls. Soundproofing works by combining mass, decoupling (resilient channels) and insulation in the cavity.
Financial help may be available for eligible energy work, through programs such as the Quebec government’s Rénoclimat and Hydro-Québec’s LogisVert; criteria change, so check before starting. Related: drywall and basement renovation.
When it is time
Signs Your Home Needs Better Insulation.
Comfort problems usually point to air leaks or missing insulation.
Cold floors and rooms
Uninsulated basements or overhangs.
Drafts near outlets and trim
Air leaking through walls.
Ice dams on the roof
Heat escaping into the attic.
High heating bills
Energy lost through the envelope.
Footsteps and voices from upstairs
Little sound insulation between floors.
Street noise
Thin walls or leaky windows.
What we do
Insulation and Soundproofing Services.
We start by finding where heat and sound get through, then fix those places.
Wall and basement insulation
Insulation and vapour control in walls opened during renovation and on below-grade basement walls.
✓ Warmer, drier rooms.
Attic insulation and air sealing
Air leaks sealed at the ceiling, then insulation added to the right depth with ventilation preserved.
✓ Fewer ice dams, lower bills.
Soundproofing
Floors and shared walls between units: insulation, resilient channels and acoustic underlays.
✓ Quieter plexes and condos.
Choosing materials
Insulation Types Compared.
Each material fits a different part of the house.
| Material | Best for | Note |
|---|---|---|
| Mineral wool batts | Walls, soundproofing | Fire-resistant, good acoustics |
| Blown-in cellulose or fibre | Attics | Fills gaps over large areas |
| Spray foam | Rim joists, irregular areas | Also air-seals |
| Rigid foam boards | Basement walls | Continuous insulation on concrete |
Below-grade walls need an approach that controls moisture, not only insulation.
Step by step
How an Insulation Project Unfolds.
Air sealing comes before insulation, always.
Visit and assessment
We look for drafts, cold areas and noise paths.
Written scope
Areas, materials and target performance listed.
Protection
Work areas protected and ventilated.
Air sealing
Leaks sealed at plates, penetrations and rim joists.
Insulation
Insulation installed to the planned depth or thickness.
Close and finish
Vapour control, drywall and finishes where walls were opened.
Walkthrough
Work reviewed and documents provided.
Before you compare quotes
What Drives the Cost of Insulation.
Cost depends on access, area and whether walls are already open.
Access
Open walls are far cheaper to insulate than finished ones.
Area and depth
Attic size and target R-value.
Material
Spray foam costs more than batts or blown-in.
Soundproofing assembly
Resilient channels and extra layers add labour.
Preparation
Removing old insulation or finishes.
Incentives
Eligible work may qualify for programs.
Where should I insulate first?
Usually air sealing and the attic, then basement walls and rim joists. A visit shows where your home loses the most heat.
Can soundproofing stop all noise between floors?
It greatly reduces it. Combining insulation, resilient channels and an acoustic underlay is more effective than any single product.
Are there subsidies for insulation in Quebec?
Programs such as Rénoclimat and Hydro-Québec’s LogisVert may support eligible energy work. Criteria change, so check before starting.
Do I need to open my walls to insulate?
Not always. Attics and basements are usually accessible; insulating finished walls is easiest during a renovation.
Will insulation reduce my heating bills?
Air sealing and insulation reduce heat loss, which usually lowers heating costs and improves comfort.
Is spray foam better than batts?
Each has its place: spray foam also air-seals awkward areas; mineral wool is excellent in walls and for soundproofing.
Get started
Planning Insulation or Soundproofing?
Tell us which rooms are cold or noisy and how old the home is. We will come back with a clear, itemized estimate.
- Rooms or areas concerned
- Type of home (house, plex, condo)
- Photos of the attic or basement
Serving all seven areas of Greater Montreal · all renovation services · renovation FAQ
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Replies with clarifying questions — not a robocall.