Worker in a protective suit and respirator vacuuming old loose-fill insulation out of an attic with a large hose

Insulation Removal

Clean, professional removal of old, damaged, or contaminated insulation to expose the existing space, identify potential issues, and properly prepare your home or building for a new insulation system.

  • Licence RBQ : 5882-6686-01Régie du bâtiment du Québec
  • Licensed & Insured
  • 15+ Years of Experience

Service details

Start Fresh With Proper Insulation Removal

Old insulation doesn’t always need to stay in place. Over time, insulation can become compacted, damaged, soiled, contaminated, or affected by moisture and pests. When this happens, its performance can decrease, and simply adding new insulation over the existing material may not address the underlying problem.

Removing the existing insulation provides access to the areas underneath so they can be properly inspected before new insulation is installed. This can help identify air leakage, moisture staining, water damage, contamination, deteriorated materials, and other areas that may need attention.

With the old insulation out of the way, the space can be cleaned and prepared, and areas that require sealing or repair can be addressed before re-insulating. This creates a better starting point for the new insulation system and helps ensure the work is being completed on a properly prepared surface.

Old loose-fill insulation being vacuumed from between attic floor joists through a large hose

When Should Insulation Be Removed?

Insulation removal may be recommended when existing insulation has been affected by:

  • Mould or moisture contamination
  • Rodents, pests, or animal waste
  • Water damage from roof or plumbing leaks
  • Heavy dust, dirt, or debris
  • Compaction or deterioration over time
  • Damaged or ineffective insulation
  • Major attic renovations or upgrades
  • Preparation for a complete insulation replacement

Older materials such as vermiculite may require testing or specialized assessment before removal due to the potential presence of asbestos.

More Than Just Removing Old Insulation

One of the main advantages of removing old insulation is the ability to see the condition of the space underneath. Problems that may have been hidden beneath the existing insulation can be identified before they are covered again.

Once the insulation has been removed, the exposed area can be checked for:

  • Air leakage and gaps
  • Moisture staining
  • Signs of water damage
  • Contamination
  • Damaged or deteriorated materials
  • Areas requiring additional cleaning
  • Gaps or penetrations that may need to be sealed
  • Areas that may require repair before new insulation is installed

Identifying these conditions before re-insulating allows the space to be properly prepared and helps prevent new insulation from simply covering an existing issue.

A Clean, Controlled Removal Process

TNT Spray Foam uses professional equipment and industrial vacuum systems to remove existing insulation while helping contain dust and debris and minimize disruption to the rest of the property.

Once the insulation has been removed, the exposed space can be inspected and prepared for the next stage of the project. Depending on its condition, this may include additional cleaning, sanitizing, air sealing, or other preparation before new insulation is installed.

Remove, Prepare & Re-Insulate

Insulation removal is only the first stage of the process. Once the old material has been removed, TNT Spray Foam can help prepare the exposed area and install a new insulation system suited to the building and the requirements of the project.

Depending on the condition of the space and the type of building, the process may include:

  • Removal of existing insulation
  • Cleaning and preparation of the exposed area
  • Identifying areas of air leakage, moisture, damage, or contamination
  • Air sealing where required
  • Spray foam insulation
  • Blown-in insulation
  • Batt insulation
  • Attic insulation upgrades
  • Complete insulation replacement

Rather than simply removing old insulation and covering the area again, the goal is to properly prepare the space before installing the new insulation. The appropriate insulation system can then be selected based on the building, the area being insulated, and the performance requirements of the project.

Residential & Commercial Insulation Removal

We provide insulation removal, preparation, and replacement services for residential and commercial properties, including:

  • Attics
  • Renovation projects
  • Older homes and buildings
  • Water-damaged areas
  • Pest-contaminated insulation
  • Under-insulated spaces
  • Insulation replacement projects
  • Properties undergoing energy-efficiency upgrades

Heat-loss map

Where Your Home Loses Heat

Select an area on the drawing to see where heat escapes and how we fix it.

Section A–A · Two-storey home, basement and crawl space

Attic

Blown-in insulation tops up existing attic insulation without major disruption, settling around framing, corners and uneven areas. Batt insulation fits standard joist spaces in ceilings.

How we fix it

Exterior walls

Spray foam expands as it’s applied, sealing gaps and cracks to help reduce drafts and air leakage. In framed walls, batt insulation fits standard stud spaces for dependable thermal performance.

How we fix it

Rim joists

Rim joists are among the areas where air leakage and heat loss are most likely to occur. Spray foam combines insulation and air sealing in one application.

How we fix it

Basement walls

Basements can account for about 25% of a home’s total heat loss. Spray foam is a strong choice for basements, combining insulation and air sealing in one application.

Source: Government of Canada, Keeping the Heat In.

How we fix it

Crawl space

Spray foam is especially effective in hard-to-insulate spaces like crawl spaces, where thermal performance and air sealing both matter. It expands to seal gaps and cracks, helping reduce air leakage.

How we fix it

Old insulation

Over time, insulation can become compacted, damaged or contaminated, and its performance can decrease. We remove it with industrial vacuum systems so the space can be inspected and prepared before re-insulating.

Older materials such as vermiculite may require testing or a specialized assessment before removal, due to the potential presence of asbestos.

How we fix it

Services

Get a Free Insulation Removal Quote

Need old, damaged, or contaminated insulation removed? TNT Spray Foam provides professional insulation removal, preparation, and replacement services throughout Quebec and Eastern Ontario.

Tell us about your project and our team can assess your insulation needs, discuss the condition of the existing space, and recommend the appropriate next steps for removal and re-insulation.

Fields marked * are required.

Contact information
Your project

For example: the area to insulate, its approximate size, the current insulation and your timing.

Project Type

Select all that apply.

Messages from TNT

If you give us your phone number, TNT Spray Foam Inc. may call or text you about this request (for example, to book a visit). Message and data rates may apply. Reply STOP to opt out of texts.

Both boxes are optional. Sender: TNT Spray Foam Inc., 17320 County Rd 43, Monkland, ON K0C 1V0, info@tntsprayfoam.ca. You can withdraw your consent at any time. Privacy policy

Preview site — this form doesn’t send yet. To reach TNT today, call (613) 863-7710.