
Batt insulation installation in Toronto. Fiberglass and Rockwool for walls, attics, and basements. R-value guidance, licensed installers, free estimates.
Konstruction Group provides professional batt insulation services for new custom homes, multiplexes, and renovation projects throughout Toronto. Batt insulation is the standard thermal insulation for exterior wall cavities - we install fiberglass batts for regular construction and mineral wool (Roxul) where fire-rated assemblies are required. As part of our complete building package, we coordinate batt installation with framing and drywall for efficient project completion.


Exterior walls in custom homes and multiplexes require thermal insulation to meet Ontario Building Code energy requirements. Batt insulation fills the stud cavities between framing members, providing R-20 to R-24 thermal resistance depending on wall depth. We install batts properly fitted to each cavity - no gaps, no compression - for maximum thermal performance.
For regular custom homes, fiberglass batts are the standard choice - they're cost-effective and provide excellent thermal performance. Mineral wool (Roxul Comfortbatt or Roxul Safe'n'Sound) is used where fire-rated assemblies are specified. Some fire-rated wall assemblies specifically require mineral wool batts; others accept either fiberglass or mineral wool. We install the correct product per your project specifications.
Batt insulation performance depends entirely on installation quality. Batts must be cut precisely to fit each cavity without gaps at edges or compression that reduces R-value. Around electrical boxes, pipes, and other obstructions, batts must be split and fitted carefully. Our installers are trained to achieve the full rated R-value through proper technique.

We review drawings to identify exterior walls, fire-rated assemblies, and insulation requirements.
Typical timeline: 1-2 daysDetailed pricing for batt insulation, vapor barrier, and installation based on wall areas and specifications.
Typical timeline: 2-4 daysCoordinate timing after framing and rough-in inspections are complete.
Typical timeline: As neededBatts cut and fitted to each cavity. Fire-rated areas receive specified mineral wool products.
Typical timeline: 1-3 daysPoly installed and sealed at all penetrations, joints, and perimeter.
Typical timeline: 1 dayInstallation complete and ready for insulation inspection before drywall.
Typical timeline: Same dayBatt insulation for exterior walls typically costs $1.50-$3.00 per square foot installed, depending on R-value and material type. Mineral wool costs more than fiberglass. A typical custom home might run $3,000-$8,000 for exterior wall batt insulation. We provide quotes based on your project scope and specifications.
Mineral wool is required when fire-rated wall assemblies specify it. Some UL-listed fire assemblies accept only mineral wool batts. For regular exterior walls without fire ratings, fiberglass is standard. We review your specifications to determine which product is required for each location.
Ontario Building Code requires minimum R-20 effective insulation for exterior walls in most new construction. This is typically achieved with R-22 or R-24 batts in 2x6 walls, accounting for thermal bridging through framing. We install to meet or exceed code requirements.
Yes, vapor barrier installation is included with batt insulation on exterior walls. We install 6-mil polyethylene vapor barrier and seal all penetrations with acoustic sealant to create a continuous air and vapor barrier as required by Ontario Building Code.
Standard thermal batts provide some sound reduction but are not designed for soundproofing. For party walls, floors between units, and other sound-critical applications, we use acoustic batts like Roxul Safe'n'Sound with specific thicknesses and assemblies. See our soundproofing services for multiplex applications.
A typical custom home can be insulated with batts in 1-3 days depending on size. Multiplexes take longer due to fire-rated party walls and multiple units. We coordinate scheduling with your project timeline and other trades.
Contact us today for a free consultation and estimate on your project.
Request Quote Online(416) 901-6020Spray foam insulation contractors in Toronto. Open and closed cell foam for walls, attics, and basements. Energy-efficient, licensed installers, free estimates.
Attic insulation services in Toronto. Blown-in, batt, and spray foam options. Reduce heat loss, lower energy bills. Licensed contractors, free estimates.
Soundproofing insulation for walls, ceilings, and floors in Toronto. Acoustic batts, spray foam, and resilient channels. Licensed installers, free quotes.
Contact Konstruction Group today for professional batt insulation services in Toronto and the GTA.
Get a Free Quote