Attic Air Sealing In Barrhaven, Ontario

Ontario attic rebates up to $1,250 may apply

Worker in gloves and a dust mask fitting pink insulation batts between wall studs beside a window

Attic air sealing plugs the gaps in the ceiling so warm house air stays downstairs, and it happens on every job before anything new goes on top.

This is the part of the work that most people never see. It takes place on the attic floor, under where the insulation will sit, and it is the reason a top-up actually feels different in the rooms below.

The Reason Attic Air Sealing Goes First

Insulation holds back heat, but air passes easily through loose fibres. A ceiling with open holes keeps leaking warm, moist air into the attic no matter how deep the layer is. Attic air sealing stops that flow. Once the floor is buried under 20 inches of insulation, those holes are almost impossible to reach, which is why the sealing has to happen first.

Where We Seal In A Barrhaven Attic

The old layer is moved aside and each opening is sealed with the material that suits it.

Foam goes into the wire and pipe holes in the plates on top of interior walls. The plumbing stack and the chimney or furnace flue get fire-rated sealant and metal flashing around the hot pipe. Bathroom fan housings get sealed to the drywall, and their ducts get checked so they vent outdoors. Pot lights get airtight covers or sealing at the ceiling. The hatch is weatherstripped and topped with a board of rigid foam.

Attic Air Sealing In Newer Homes

Newer Barrhaven homes can have thirty or more pot lights and a closet hatch that was never weatherstripped. Sealing around those lights and the hatch frame often makes the biggest change in comfort, even before any insulation is added.

Attic Air Sealing Price Range

Attic air sealing is normally quoted as one price for the job. Across Ontario, sealing a typical attic costs roughly $350 to $1,500, and the count of pot lights and other openings decides where it falls. Paired with a top-up, the combined price often runs $1.90 to $3.40 a square foot.

Book Attic Air Sealing With Your Top-Up

Phone (343) 301-5519 to set up a free look at your attic. The attic air sealing and the blown-in attic insulation are priced on the same written quote, and the home page lists everything else we do in Barrhaven.

Request an Estimate Call Now: (343) 301-5519

Related Attic Work

These jobs are often quoted together, because the same visit and the same crew can handle them in one trip to the attic.

Thick grey loose-fill insulation covering an attic floor beneath diagonal wood bracing and roof boards

Blown-In Attic Insulation

Blown-in attic insulation spreads an even layer over the entire attic floor, around wires and trusses, while a clean existing layer stays in place.

How it works and what it costs

Deep, even layer of grey blown insulation running to the low eaves of an attic with vent openings under the roof edge

R-60 Attic Insulation

R-60 attic insulation is our usual target for Barrhaven attics: a deep, even layer over a sealed ceiling.

How it works and what it costs

Worker in a white protective suit and respirator holding a large hose over grey loose-fill insulation between attic joists

Attic Insulation Removal

Attic insulation removal vacuums out wet, dirty or flattened material, leaving a bare floor that can be sealed and filled again from scratch.

How it works and what it costs

Yellow fiberglass batts laid between attic joists with a louvred gable vent at the far end of the attic

Attic Ventilation And Baffles

Attic ventilation moves outside air in at the soffits and out near the ridge, so the attic stays cold and dry in winter and less hot in summer.

How it works and what it costs

Worker in a black cap pressing foil-faced insulation into the framing of a sloped ceiling

Room Over Garage Insulation

Room over garage insulation warms the bedroom or bonus room above an attached garage by sealing and insulating its floor, its short side walls and the slope overhead.

How it works and what it costs

Worker on a yellow scaffold pushing insulation batts into the joists overhead in an unfinished room

Cathedral Ceiling Insulation

Cathedral ceiling insulation fills the rafters above a sloped or vaulted ceiling, a closed space too tight for loose fill to be spread across.

How it works and what it costs

White blown fiberglass insulation spread across an attic floor between angled roof trusses

Attic Insulation Rebate

The attic insulation rebate from Ontario's Home Renovation Savings program covers a share of an attic upgrade, with the payment tied to the R-value the attic has before work begins.

How it works and what it costs