The La Plaine sector and the developments of the 1990s and 2000s drew thousands of young families to Terrebonne, often into homes whose attics meet the code of their day, and nothing more. In practice, that means an upstairs that's hard to heat in winter and overheated in summer. Blowing in a few more inches of insulation to reach R-50 solves both problems at once. No sales rep, no estimate appointment: the price appears online the moment you enter your address.
What we find in Terrebonne attics
In the attics we insulate in Terrebonne, the existing insulation measured 8 inches at the median before the work, or about R-22. Half of the attics measured were between R-17 and R-22. The target in Quebec is R-50, and we install R-51.
- R-22 found at the median
- +29 to add for R-51
- Half of the attics, from R-17 to R-22
- Quebec target, R-50
Depth measured with a ruler by our installers in Terrebonne attics, converted to an R-value for fiberglass. Old cellulose would come out about 15% higher.
What it means for a home in Terrebonne
For a 980 sq ft attic, the median area we measure in Terrebonne, going from R-22 to R-51 means estimated heating savings of about $140 a year, or about $2,800 over 20 years, for a home heated with electricity. How we estimate it
For 94% of the attics we insulated in Terrebonne, we opened the LogisVert grant file with the client. The grant goes up to $1,500, and we handle the paperwork.
Before and after, in Terrebonne attics
Photos our installers took on job sites in Terrebonne, before and after the insulation.
Before
After
Before
AfterYour insulation price in Terrebonne, in 2 minutes
Enter your address in Terrebonne and get an instant price for insulating your attic, no visit and no salesperson. An installer confirms the measurements free of charge on-site before the work, and you're usually installed within 24 to 48 h.
Not sure what your attic insulation is worth? Measure it with our R-value calculator. A ruler is all it takes to see how many inches are missing.
Our insulation services in Terrebonne
- Attic insulation (blown R-51)
- Spray foam
- Attic decontamination
- Vermiculite & asbestos removal
- Insulation removal
Grants available in Terrebonne
Your work may be eligible for LogisVert from Hydro-Québec ($1,500) and Rénoclimat. We prepare the file with you.
Frequently asked questions: Terrebonne
How much does attic insulation cost in Terrebonne?
For a typical attic, the market average is around $2,495 before taxes. At Isolation à Rabais, the same project comes to $1,995 before taxes, and $495 after the LogisVert grant if you qualify (it's paid after the work). Enter your address in Terrebonne in the calculator: your exact price shows up in 2 minutes.
Do you need to visit before giving a price in Terrebonne?
No. The price is calculated online from your address and attic area. An installer then confirms the measurements free of charge on-site, right before the work, if anything differs, we tell you before starting.
What grants are available in Terrebonne?
LogisVert from Hydro-Québec offers $1,500 for roof insulation combined with air sealing (the attic must reach R-50), and Rénoclimat can be added depending on the work. We prepare the file with you.
How fast can you insulate my attic in Terrebonne?
Installation is usually scheduled within 24 to 48 hours after you accept the quote, and a typical attic takes 2 to 4 hours to complete.
Before you decide, read our attic insulation price guide, the insulation standards in Quebec and how we estimate heating savings.
Also near Terrebonne
We serve the whole area. See our Lanaudière page.