Can new insulation go on top of what is already there?

Often, yes. If the existing insulation is dry, free of pests and mould, and not hiding problems, a top-up is usually practical. If it is wet, contaminated or vermiculite that may contain asbestos, it needs to be dealt with first, and vermiculite must be tested before anyone disturbs it.

What R-value should my attic have?

It depends on the existing insulation, the space between the ceiling and the roof deck, ventilation at the eaves and the requirements that apply to the building. We review those conditions and recommend a target depth for that attic rather than quoting a single number for every home.

Why do baffles matter?

Soffit vents bring outside air into the attic at the eaves. Without baffles, added insulation can block those vents and reduce ventilation, which can lead to moisture and ice damming problems. Baffles hold the insulation back and keep an air channel open along the roof deck.

Do you deal with roof leaks or old wiring in the attic?

No. Active roof leaks need to be repaired by a roofer before insulation is added. Knob-and-tube wiring should be assessed by a licensed electrician first, since it should not be buried in insulation.

Do I need to be home during the installation?

Someone needs to provide access at the start and be available for the walkthrough at the end. Most of the work happens in the attic and along the path from the door to the access hatch, which we keep covered.

Insulation Services

Attic Insulation Services in the GTA

Attic installations and top-ups planned around the existing insulation, access, ventilation and the depth the space can actually hold.

Request a Free Quote Call 289-889-2786

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Overview

About Attic Insulation

An adequately insulated attic is an important part of a comfortable and energy-efficient home. KHG Insulation Services provides attic insulation installations and upgrades suited to the building’s existing conditions and project requirements. Most attic work is blown-in fiberglass or cellulose, added over existing material or installed after old insulation is removed.

In winter, heat moves up through the ceiling and into the attic; in summer, a hot roof deck pushes heat back down into upper rooms. An even, continuous layer of insulation slows that heat transfer. Gaps, thin spots near the eaves and settled older material are common in GTA homes and are usually what an attic insulation upgrade in Brampton or Toronto corrects.

Insulation works best when the ceiling below is reasonably airtight and the attic stays ventilated. Before adding material, we look at access, air leakage points such as top plates and penetrations, and the clearance needed at the soffits so outside air can still move through the attic.

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Scope of Work

What the Service Involves

Reviewing existing insulation: We check the type, depth and condition of what is already in the attic. That determines whether a top-up is practical or removal should come first.
Access and working space: We confirm how the attic is reached and how much of it can be safely covered. Low-slope areas and tight eaves affect how material is placed.
Air leakage considerations: Gaps around top plates, plumbing stacks, wiring holes and the attic hatch let warm, moist air into the attic. Where they are in scope, these are addressed before insulation goes in.
Baffles at the eaves: Baffles keep insulation off the roof deck at the eaves and keep soffit vents clear. This keeps attic ventilation working once the new depth is in place.
Blown-in installation: Fiberglass or cellulose is blown to an even depth across the attic floor. Depth markers are set so the installed level can be checked.

Applications

Typical Project Applications

Topping up thin or settled attic insulation
Re-insulating after old material is removed
Upper rooms that run hot in summer
Cold ceilings and drafts on the top floor
Attics in older GTA homes
Attic work before or after a roof replacement

Materials

Insulation Materials Used

Blown fiberglass

Loose-fill glass fibre that is light, does not absorb water and holds its depth well. A common choice for attic top-ups.

Blown cellulose

Loose-fill made from recycled paper treated for fire resistance. It is denser than fiberglass and fills irregular spaces well.

Benefits

Why Attic Insulation Matters

More even temperatures

A continuous insulation layer reduces the difference between upper and lower floors in both winter and summer.

Less heat loss through the ceiling

Adding depth where the attic is under-insulated slows heat transfer, which can reduce the load on heating and cooling equipment.

Ventilation kept clear

Baffles at the eaves let soffit vents keep moving air through the attic after the insulation level goes up.

A measurable result

Depth markers across the attic show the installed level so you can see what was put in.

What to Expect

From First Call to Installation

01
Tell us about the attic
Call 289-889-2786 or send the quote form with the home’s location, the attic access, and anything you know about the current insulation.
02
Attic and access review
We look at existing depth and condition, access, ventilation at the eaves and visible air leakage points before recommending a scope.
03
Scope-based quote
The quote sets out the material, target depth, baffles and any preparation work, based on what the attic needs rather than a fixed package.
04
Installation and clean-up
We protect the access path, blow in the insulation to the agreed depth, clean up and show you the depth markers before we leave.

FAQ

Attic Insulation Questions

Every property is different. Contact us to discuss your specific project.

Call 289-889-2786 View all insulation FAQs

Related Services

Request a Free Quote

Request a Attic Insulation Quote

Share the property type, location, approximate area, and timeline, and KHG Insulation Services will follow up to discuss your attic insulation requirements.

Request a Free Quote Call 289-889-2786

289-889-2786 khgconstructionbuilds@gmail.com

Attic Insulation Services in the GTA

About Attic Insulation

What the Service Involves

Typical Project Applications