Serving Barrie, Springwater & Essa

Free written estimates · +1 (705) 243-3246

Attic air sealing plugs the cracks and holes in a ceiling that leak heated air upward. We seal those gaps with spray foam, caulking and gaskets before any new attic insulation is blown over them.

Barrie Attic Insulation includes attic air sealing in most top-up and removal quotes, because it is the step that does the most for comfort and for ice at the eaves.

Attic Air Sealing details

Warm Air Rises Into The Attic Through Small Gaps

Heat rises, and in a two-story house it pushes hard against the top-floor ceiling. It finds every gap: around pot lights, ceiling fans and bathroom fans, along the top of each interior wall, around the plumbing stack and the chimney, and around the attic hatch. Each one is small, but together they can add up to an open window.

Loose fill on its own never stops that draft, so attic air sealing goes in ahead of it. Loose fill slows heat moving through it, but warm air can flow right through the fibres.

Attic Air Sealing Keeps Frost Off The Roof Boards

The air leaking into a Barrie attic in winter is warm and damp. When it meets the cold roof boards, it turns to frost. On a sunny day the frost melts and drips back onto the insulation, and after a few winters the sheathing turns black with mould.

Attic air sealing stops that moisture at the ceiling. It is one of the main reasons we seal before we insulate, every time.

What Gets Sealed During Attic Air Sealing

We seal along the wall tops inside the attic, wire and pipe holes, pot light housings with covers rated for insulation contact, the plumbing stack, the gap around the chimney with fire-rated material, and duct boots in the ceiling. On the hatch, foam weatherstrip goes around the frame and a stiff foam board goes on top. Bathroom fans are checked to make sure they vent outside, not into the attic.

Attic Air Sealing Pricing

Attic air sealing on its own usually runs $400 to $1,500, depending on how many leaks there are and how easy they are to reach. Paired with new loose fill, sealing and insulation together tend to come in at $2.00 to $3.50 for each square foot. The attic insulation top-up page covers the layer that goes on afterward.

Book An Attic Air Sealing Visit

Phone (705) 243-3246 to have the ceiling leaks found and attic air sealing priced at no charge. Every other service is listed on the home page.

More Ways To Fix The Attic

Most attic jobs in Barrie combine two of these, such as air sealing and a top-up.

Deep white blown-in fibreglass filling the attic floor between the roof trusses

Blown-In Attic Insulation

Blown-in attic insulation fills the whole attic floor with loose fibres that settle around trusses, wires and vent pipes. We blow it to a measured depth, usually R-60, and write that depth on the invoice.

Details and pricing
Deep grey cellulose blown in on both sides of a plywood walkway down the middle of an attic

Attic Insulation Top-Up

An attic insulation top-up blows fresh loose fill on top of whatever layer is already there. It is the quickest and least expensive way to bring an attic up to today's levels without tearing anything out.

Details and pricing
Water stains on the roof boards above wet pink insulation at the edge of an attic

Ice Dam Prevention

Ice dam prevention means keeping the roof boards cold so snow does not melt from underneath. We do it from inside the attic by sealing air leaks, adding attic insulation and keeping the eave vents open.

Details and pricing
Two workers vacuuming old grey insulation out of an attic, with bare joists showing behind them

Attic Insulation Removal

Attic insulation removal clears out worn or spoiled material, leaving bare joists ready for sealing and a fresh fill. We remove loose fill, old batts and mixed layers with a high-powered vacuum.

Details and pricing
Pink batts at the eaves of an attic with soffit vents along the roofline

Attic Ventilation

Attic ventilation lets outside air flow in low at the soffits and out high at the roof vents, so the attic stays cold and dry in winter. We check that flow and fix it as part of every insulation job.

Details and pricing
Installer fastening foil-faced insulation to the underside of sloped roof rafters

Cathedral Ceiling Insulation

Cathedral ceiling insulation fills the space between the rafters in rooms where the ceiling follows the roof. That includes vaulted living rooms, bonus rooms over a garage and the upper floor of a story-and-a-half house.

Details and pricing
Attic with thin pink batts laid between the joists, well below today's levels

Attic Insulation Rebate

The Ontario attic insulation rebate sits inside Home Renovation Savings, which Enbridge Gas funds alongside Save on Energy. Under its attic stream, homeowners can get money back for raising an attic to R-50 or more without booking an energy audit.

Details and pricing
Attic with a mix of old batts and loose fill of different depths between the joists

Attic Insulation Cost

The attic insulation cost for most Barrie houses falls between $1,250 and $3,000. The figure for your house comes down to three things: the attic's square footage, the depth already up there and the number of air leaks to close.

Details and pricing

Book A Free Attic Check

Tell us what is going on upstairs, and we will call to book a visit at a time that suits you.

Tell Us About Your Attic

A few details about the house and the problem help us plan the visit. Calls go to +1 (705) 243-3246.

Thanks — your request has been received. Expect a call from our office, usually before the business day ends, to pick a time for your attic check. For anything urgent, call +1 (705) 243-3246.

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