Serving Innisfil, Alcona, Stroud, Lefroy, Cookstown & south Simcoe County

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Attic Insulation

Attic Insulation In Innisfil, Ontario

Attic insulation is the service we install most often, because the attic is where a house loses the largest share of its heat and where a top-up returns the most for the money. We air seal the ceiling, fit baffles at the eaves and blow cellulose to the recommended depth, and every job is fully insured.

Most attics are finished in one day, and the written scope names the depth you are paying for before we start.

Attic Insulation details

Half Of Innisfil's Attics Are Under-Insulated For This Climate

Most attics we open in Innisfil hold between R-20 and R-40, and the current recommendation for this part of Ontario is R-50 to R-60. The Alcona and Lefroy subdivisions that went up through the 1990s and 2000s were insulated to the code of their year, which called for far less than today's target. The older houses in Stroud, Churchill and Cookstown were often given a few inches of loose fill that has since settled to half its depth.

The town has grown by more than eighteen percent since 2016, so there are plenty of newer houses too, and those are usually fine on depth but poor on the detail work around hatches, pot lights and the wall to the garage. An attic is only as good as its thinnest spot.

Blown-In Cellulose Is The Attic Insulation We Recommend For A Top-Up

Blown-in cellulose is our first choice for an open attic in Innisfil. It flows around trusses, wiring and ducts to a continuous depth, it goes straight over dry existing material, and it reaches R-60 for a fraction of what spray foam would cost across the same area. Our blown-in insulation page covers the material in more detail.

Where the attic is a finished room or a cathedral ceiling with no space to blow, we insulate the roof deck itself with spray foam instead. That is a different job, and the spray foam insulation page explains it.

Attic Insulation Does Not Stop Ice Dams On Its Own

Air sealing is part of every attic insulation job we do, because warm air leaking through the ceiling is what melts the snow on an Innisfil roof and builds the ice dam at the eave. This is snowbelt country, with more than two metres of snow in a normal winter, and a roof carrying that load over a leaky attic will drip into the soffit every February.

Before the cellulose goes in, we seal the top plates, wiring and plumbing holes, pot lights and the attic hatch from the attic side, and we fit baffles so the soffit vents stay open above the new depth. The air sealing and attic ventilation page goes through that work step by step.

Wet, Soiled Or Vermiculite Attic Insulation Comes Out First

Old material is removed before the new goes in whenever it is wet, mouldy, chewed through by animals or made of vermiculite. Raccoons and squirrels find their way into a lot of attics on the treed shore lots around Big Bay Point and Sandy Cove, and once loose fill has been used as a nest it is not something to build over.

Removal is quoted as its own line so you can see what it costs. The insulation removal page explains how the vacuum truck works and how disposal is handled.

What Attic Insulation Costs In Innisfil

Blown-in attic insulation in Innisfil runs about $1.50 to $2.50 a square foot installed, so a typical 1,200 square foot attic is roughly $1,800 to $3,000 for a top-up to R-60. Air sealing adds about $500 to $1,500 depending on the number of penetrations, baffles run a few dollars each, and a new insulated hatch cover is around $200 to $300 installed.

Those are Ontario market ranges rather than a quote. Your written price depends on the size of the attic, the access, what is up there now and the depth you want to reach. Ontario's Home Renovation Savings Program has offered a rebate on attic insulation, and we supply the depth measurements and photographs the application needs.

Book A Free Attic Insulation Inspection

Call +1 705-805-8881 or fill in the form below with the size of the house and the age of the roof. We come out, measure the depth, look for leaks and animals, and write the price down. Every other service we offer is listed on the Innisfil Insulation Services home page.

What We Install

Other Insulation Work We Do

The visit and the written scope are the same for every service, so pick the part of the building that needs attention.

Closed cell spray foam insulation filling the stud bays of an exterior wall in Innisfil, Ontario

Spray Foam Insulation

Spray foam insulation is the material we install where air, moisture and heat all have to be stopped in one layer, which in Innisfil means rim joists, crawl spaces, foundation walls, cathedral ceilings and steel buildings. Closed cell and open cell foam are both available, the substrate is measured before anything is sprayed, and the work is insured.

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Blown-in cellulose insulation being spread across attic joists in Innisfil

Blown-In Insulation

Blown-in cellulose or fiberglass is loose fill delivered through a hose, and it is how we insulate most Innisfil attics, fill the empty walls of older houses and pack the cavities of new builds. It reaches any depth you ask for, flows around obstacles that batts cannot, and costs far less than foam over the same area. We carry full insurance on every job.

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Fiberglass batt insulation being fitted into a framed wall in an Innisfil house

Batt Insulation

Batts are fiberglass or mineral wool cut to fit between studs and joists, and they are the simple choice for open framing in a basement, a garage, an addition or a new build. Batts are inexpensive, they go in quickly, and fitted properly they perform to their rating. The work is insured.

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Old attic insulation being vacuumed out through a removal hose in Innisfil, Ontario

Insulation Removal

Insulation removal is the vacuuming or bagging of old attic, wall and crawl space material that is wet, soiled by animals, mouldy, burnt, failed or simply in the way of a renovation, and we do it as its own service or as the first step of a new install. The material is taken away and the framing is cleaned before anything new goes in. Insurance covers the work.

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Batt insulation going into the floor joists above an unfinished Innisfil basement

Basement Insulation

Basement insulation covers the foundation walls, the rim joist and, where it helps, the ceiling of a lower level, and it is the cure for cold floors on the main level of a house. We install closed cell spray foam directly on the concrete or batts in a framed wall depending on the basement, and the rim joist is foamed either way. The work is fully insured.

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Installer insulating the floor joists over a crawl space with a vapour barrier on the ground in Innisfil

Crawl Space Insulation

Crawl space insulation is the work that makes the floors of a shallow-foundation house or cottage warm, and Innisfil has more crawl spaces than most Ontario towns because of the lakeshore building stock. We seal the ground, insulate the walls or the floor above with closed cell spray foam, and turn a vented crawl space into a sealed one. All of our work is fully insured.

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Dense-pack cellulose wall insulation being blown behind netting in Innisfil, Ontario

Wall Insulation

Wall insulation is how we fill the empty or under-filled exterior walls of an existing house without stripping the drywall, and how we fill the open walls of an addition or new build. Dense-pack cellulose goes into closed walls through small holes, and netted cellulose, batts or spray foam go into open ones. We carry full insurance on every job.

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Spray foam insulation across the underside of a garage roof deck in Innisfil

Garage Insulation

Garage insulation covers the walls and ceiling of an attached garage, the ceiling under a bonus room, and detached garages and workshops that are heated, and it is one of the most common calls we get from the newer subdivisions. We install batts, mineral wool or spray foam depending on the assembly, and every job is fully insured.

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Mineral wool soundproofing insulation fitted into the interior walls of an Innisfil home

Soundproofing Insulation

Soundproofing insulation is mineral wool or dense-pack cellulose installed inside interior walls, floors and ceilings to keep the noise of one room out of the next, and it goes into renovations, new builds and finished basements across Innisfil. It goes in while the framing is open or through small holes in a finished wall, and insurance covers the work.

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Attic ventilation baffles being installed at the eaves before insulation in Innisfil, Ontario

Air Sealing And Attic Ventilation

Air sealing and attic ventilation are the two pieces of work that decide whether attic insulation performs, and in Innisfil they are also the cure for ice dams. We seal the ceiling from the attic side, insulate and seal the hatch, and fit baffles at the eaves so the soffit vents keep working above the new depth. We carry full insurance on every job.

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Batt insulation laid between the rafters of a steep cottage attic near Lake Simcoe

Cottage And Four-Season Insulation

Cottage insulation is the work of bringing a seasonal building along the Lake Simcoe shore up to a standard it can be lived in through an Innisfil winter, from the crawl space to the roof, and it is a job this town has more of than almost any other. We plan it in stages that match a budget and a season, and every stage is fully insured.

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Spray foam insulation applied to the inside of a steel building wall in Simcoe County

Commercial And Agricultural Insulation

Commercial insulation in Innisfil covers the steel and block buildings at Innisfil Heights along Highway 400, the shops and retail space along Innisfil Beach Road and in Cookstown, and the barns, drive sheds and workshops on the surrounding farms. We install spray foam, batts and blown-in insulation to suit the building and schedule the work around the business. Every job is fully insured.

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Want This Work Done On Your Building?

Give us the size of the space and what is in it now, and a written scope and a start date will follow.

Free Estimate

Request A Free Written Quote

Describe the space and we will reply with a written scope and a firm number. If you would rather talk it through, call +1 705-805-8881.

Thanks — your request has been received. Someone from Innisfil Insulation Services will be in touch within one business day. For anything urgent, call +1 705-805-8881.

Fields marked are required. Photographs of the attic hatch or the space are welcome once we are in touch.

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