Attic Air Sealing In Vaughan, Ontario

Ontario attic rebates up to $1,250 may apply
Worker in a dust mask and gloves pressing a pink batt into a wall stud bay beside a window frame
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Attic air sealing blocks the openings between the rooms below and the attic, so heated air stays in the house and the fill above can do its job. We seal pot lights, wire holes, plumbing vents and wall tops from the attic side.

Every ceiling under an attic is full of holes. One by one they look tiny, yet added together on a big house they can leak as much as an open window, and they leak damp air into the attic for months on end.

What Attic Air Sealing Covers

Spray foam closes gaps around wiring and plumbing, fire-rated sealant goes around chimneys and flues, and older pot lights get boxed in with covers that keep their required clearance. Partition wall tops are sealed along the seam where drywall meets framing, and the hatch gets a gasket.

Why Attic Air Sealing Matters In Larger Homes

A large Vaughan house can have forty pot lights, three bath fans and a duct run through the attic. Each one is a leak path, and attic air sealing is how they get closed before the fill hides them.

A sealed attic is a drier attic too. With less moist house air reaching the roof boards, frost is far less likely to build up on them during a deep freeze.

Attic Air Sealing And Insulation Together

Sealing goes first, because blown fill hides every gap the minute it lands. We pair it with an attic insulation top-up or with new fill after a clean-out, all on a single quote.

Attic Air Sealing Pricing

As a stand-alone job, attic air sealing is usually $500 to $1,500 for the house. Bundle it with a top-up and the total tends to be $2.00 to $3.75 a square foot.

Book Attic Air Sealing

Phone (289) 210-8363 or use the form to arrange a free walk-through. The Vaughan Attic Insulation home page lists the rest of our services.

Request an Estimate Call Now: +1 (289) 210-8363

Related Attic Services

Most Vaughan attics end up needing two or three of these together.

  1. Grey blown cellulose piled deep on both sides of a plywood walkway between roof trusses

    Attic Insulation Top-Up

    An attic insulation top-up lays fresh blown fill over whatever clean layer is already there, lifting a thin attic to about R-60 in a single visit. It fits any attic whose existing insulation is still dry and free of droppings.

  2. Tan fiberglass batts between attic joists on each side of a plywood walkway leading to a gable vent

    Blown-In Fiberglass Insulation

    Blown-in fiberglass insulation is fluffy glass fibre carried by air down a hose until it drifts into every bay and corner. It weighs little, never soaks up water and brings a thin attic up to current levels fast.

  3. Thick grey-brown blown cellulose covering an attic floor beneath dark roof boards

    Blown-In Cellulose Insulation

    Blown-in cellulose insulation is shredded recycled paper treated with borates against fire, mould and insects. Blown to the right density, this attic insulation tucks around wires and truss plates and forms a heavy, quiet layer.

  4. Worker in a white protective suit and respirator stuffing old pink batts into a black bag in an attic

    Rodent Damaged Attic Insulation Removal

    When mice, squirrels or raccoons have nested in the attic, we take out the fouled attic insulation, disinfect the bare joists and close the holes they used from inside. New insulation is installed only after that.

  5. Pink fiberglass batts laid around a framed attic hatch opening in a finished attic floor

    Attic Hatch Insulation

    Attic hatch insulation seals and insulates the access panel in your ceiling. An unsealed hatch can let out more heat than a large stretch of insulated ceiling around it.

  6. Worker standing on a scaffold pressing a mineral wool batt between ceiling joists

    Cathedral Ceiling Insulation

    Cathedral ceiling insulation packs the thin rafter cavity above a sloped ceiling, where there is no attic floor to work on. The method depends on how deep the rafters are, how the roof vents and how we can get inside.

  7. White loose-fill insulation spread across an attic floor up to the bottom of the roof trusses

    Attic Insulation Rebate

    Through its Home Renovation Savings program, Ontario's gas and electricity utilities have offered an attic insulation rebate topping out at $1,250 for an attic finished at R-50. Here is what the program's own pages said when we read them, so you can plan with real figures.

  8. Pink batts between joists across a whole attic, with a round window in the gable wall

    Attic Insulation Cost

    Attic insulation cost for a detached Vaughan house usually falls between $1,500 and $5,000. Job type, floor area and the state of the old fill push yours up or down that scale.

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