FR
(613) 863-7710Free quoteFree quoteMenu
Free quote
(613) 863-7710info@tntsprayfoam.caFrançais
Installer in a white protective suit spraying foam insulation onto the sloped ceiling of an attic, beside a window

Services

Professional spray foam, batt, and blown-in insulation services across Ottawa and surrounding areas. Built for efficiency, comfort, and long-term performance.

Get a free quoteCall now

Spray foam · Batt · Blown-in · Removal

What We Offer

  • Close-up of spray foam insulation filling the stud cavities of a wood-framed wall

    Spray Foam Insulation

    High-performance insulation that expands to create an airtight seal, reducing energy loss, preventing moisture buildup, and improving comfort year-round.

    • Walls
    • Ceilings
    • Rim joists
    • Crawl spaces
    Get a quote
  • Close-up of tan and pink insulation batts fitted between the studs of a framed wall

    Batt Insulation

    Cost-effective insulation for walls and ceilings. Ideal for new builds and renovations, providing reliable thermal performance and improved energy efficiency.

    • Walls
    • Ceilings
    • Framed spaces
    Get a quote
  • Loose-fill insulation streaming from a hose onto an attic floor

    Blown-In Insulation

    Affordable and effective insulation for attics and walls to improve comfort and reduce energy costs.

    • Attics
    • Open spaces
    • Top-ups
    Get a quote

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

Areas and fixes

  1. Attic
  2. Exterior walls
  3. Rim joists
  4. Basement walls
  5. Crawl space
  6. Old insulation

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

Get a Free Quote Today

Fast, clean insulation installs across Ottawa & surrounding areas.

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.