Attic Air Sealing In Bradford, Ontario
Attic air sealing shuts the holes in your ceiling where heated air slips into the attic, from recessed lights and fan boxes to the hatch. It is step one on every insulation job we take.
Attic Air Sealing details
Insulation Alone Does Not Stop Air Leaks
Insulation slows heat down, yet air moves right through it. Warm indoor air is lighter than the cold air above, so it rises through every gap in the ceiling and carries both heat and moisture with it.
Attic air sealing deals with that at the source. Once the ceiling plane is tight, the insulation laid over it can do its job, and the house sends far less heat into the attic each winter.
What Gets Closed During Attic Air Sealing
All of the attic air sealing happens from above, so nothing in your rooms gets opened up. We close gaps around recessed lights, bathroom fan boxes, plumbing vents, electrical boxes and the holes drilled through wall tops for wiring.
Bigger openings, such as duct chases or the hollow over a bulkhead, get a piece of rigid board sealed around its edges. The hatch receives a gasket and a foam back. Around chimneys and flues the gap is closed with sheet metal and fire-rated sealant.
Attic Air Sealing Helps Prevent Frost In The Attic
When moist indoor air leaks into a cold attic, it reaches the underside of the roof and freezes. Over a long cold spell that frost keeps building, and when the weather breaks it melts and drips onto the insulation and the ceiling below.
Attic air sealing shuts off most of that moisture. Paired with sound attic ventilation, it keeps the roof boards dry and the insulation at full strength.
How Attic Air Sealing Is Priced
Sealing by itself is quoted as a flat job price, roughly $450 to $1,500, and the count of ceiling holes sets where it lands. Done together with a top-up, attic air sealing brings the whole job to about $2.10 to $3.60 a square foot.
Add Attic Air Sealing To Your Upgrade
Book a free depth reading by calling (289) 210-8362 or through the request box, and every leak we find will be listed on the quote. Return to the attic insulation home page to see where attic air sealing fits in the full job.
Pair This With Another Attic Job
A typical Bradford attic combines a couple of these on one visit.
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Blown-In Attic Insulation
Blown-in attic insulation spreads one unbroken layer across the attic floor, eave to eave, and reaches R-60 at the right depth. It suits empty attics, patchy batts and any floor with open joist bays.
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Attic Insulation Top-Up
With an attic insulation top-up, fresh fill is blown on top of the layer you already have until a thin or sunken attic floor reaches R-60. Dry, clean material underneath is left right where it lies.
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New Home Attic Insulation Upgrade
A new home attic insulation upgrade takes the minimum layer a builder left and builds it up to R-60, fixing the eaves, the hatch and the ceiling holes as it goes. For most newer Bradford houses it is the first upgrade worth doing.
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Attic Ventilation
Good attic ventilation draws cold, dry air through the soffits and releases it up near the ridge, which keeps the roof deck dry through the winter. We look at attic ventilation in every attic, because new insulation must never block it.
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Attic Insulation Removal
Attic insulation removal vacuums out damp, mouldy, flattened or rodent-fouled insulation, leaving a bare floor ready for sealing and fresh insulation. Attic insulation removal is the right first step when the old layer can no longer do its job.
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Attic Insulation Rebate
Ontario's attic insulation rebate covers part of the cost of raising an attic to R-50 under Home Renovation Savings, a program Enbridge Gas runs jointly with Save on Energy. Below is what it pays, who can apply and how contractors fit in, last checked October 2026.
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Attic Insulation Cost
Attic insulation cost in Bradford mostly falls between $1.20 and $3.00 per square foot, which is about $1,200 to $3,000 for an average subdivision attic. Your exact figure arrives on paper once a free depth reading is done.
Get Your Attic Measured At No Charge
A single visit gives you the depth, the holes to seal and the price, and the reading itself is free.
Ask For Your Free Depth Reading
Give us the basics on your home, and our office will phone back to pick a visit date. Calls go to +1 (289) 210-8362.