Attic insulation replacement follows the removal while the attic floor is still bare. Gaps around wires and pipes get sealed, baffles hold the soffit vents open, and fresh loose fill is blown in to R-50 or R-60, the depth Ontario's code packages set for new homes.
Putting the new insulation in right after insulation removal, during the same visit, avoids a second setup and gets the attic warm again quickly. The work is fully insured, and the quote spells out the R-value and the depth.
Much of the heat an attic loses leaves as warm air rather than through the insulation itself. It slips up past wires, vent stacks, recessed lights and chimneys, and along the top of each inside wall. Most of those openings are out of sight under the fill.
Once insulation removal is finished, they are in plain sight. We seal them with caulk and foam before any new insulation goes in. That step costs little and does a lot, because new insulation over open gaps still lets warm, moist air reach the roof.
An attic needs air moving under the roof deck to stay dry. Air comes in through the soffit vents at the eaves and leaves through the roof vents. When insulation is blown right into the eaves, it blocks the soffits and the attic gets damp.
We install baffles in each rafter bay along the eaves. They hold the insulation back and keep a channel open for air. In older houses and in Port Stanley cottages, we sometimes find no soffit venting at all, and we will point that out in the quote.
Newer houses in Miller's Pond and Harvest Run usually start from a better level, and a top-up may be all the attic needs there. Older houses nearly always need the full job, which means insulation removal, air sealing, baffles and then new fill.
Ice dams start with heat escaping into the attic and melting snow on the roof. Air sealing, deep insulation and good venting keep the roof cold, so the snow stays put. In St. Thomas, where winter swings above and below freezing, that matters.
We blow in new loose fill to R-50 or R-60, which is roughly 14 to 20 inches depending on the material. Across the market, re-insulation on its own is priced at roughly $2.00 to $4.50 a square foot, and insulation removal with re-insulation runs about $3.50 to $7.00 combined.
Ontario's Home Renovation Savings program has covered a share of attic insulation costs in the past, on the condition that the full attic reaches R-50 and a contractor enrolled in the program does the work. The attic stream stopped taking new contractors, and the program is set to wrap up in November 2026. Its papers do not say clearly whether taking out old insulation is part of the eligible cost. Read the current rules on its website before counting on any money back, and ask each contractor you talk to whether they are enrolled.
The local utility, once St. Thomas Energy, is now part of Entegrus, and we are not aware of a separate local insulation program.
Call or fill in the form. We will price the insulation removal and the new insulation together, so you can see both numbers. Each of our other services is linked from the home page.
These are the other attic jobs we quote in St. Thomas and across Elgin County.
Attic insulation removal takes every layer of old batts and loose fill down to the bare joists. A trailer vacuum in the driveway pulls the loose material out through a long hose, batts are bagged by hand, and the attic floor is swept clean before any new insulation is added.
View Attic Insulation Removal
Blown-in insulation removal clears settled cellulose and loose fibreglass out of an attic through a wide vacuum hose. The fill rides the hose down to collection bags parked beside the driveway, which keeps it off the stairs, the carpets and the furniture in the rooms under the attic.
View Blown-In Insulation Removal
Attic cleaning begins by stripping out insulation that mice, raccoons, squirrels or bats have fouled with droppings and urine. The soiled fill is dampened, bagged and hauled off, and then the joists and roof boards are sanitized and deodorized so clean insulation has a fresh surface to sit on.
View Attic Cleaning and Decontamination
Wet, mouldy and smoke-damaged insulation removal is for attics hurt by a roof leak, an ice dam, a bath fan exhausting into the attic, or a house fire. The ruined fill comes out, the wood underneath is checked, and each stage is photographed for the insurance file.
View Wet, Mouldy and Smoke-Damaged Insulation Removal
Vermiculite in an attic is left alone until a lab result comes back, because this fill may contain asbestos. We halt the job and have a sample analyzed. When asbestos is confirmed, we coordinate a trained asbestos abatement contractor to take it out, and we re-insulate after the air clearance.
View Vermiculite Insulation Removal
Pre-sale attic work clears up whatever a home inspection finds overhead, from droppings to soaked fill to something that might be vermiculite. Buyers, sellers and realtors receive a written quote, and before and after photos of the finished attic are theirs to pass along.
View Pre-Sale and Home Inspection Insulation RemovalSend a few details about the attic, and we will book a free visit and write up the quote.
Fill in the form with your address and a short note about the attic. Photos of the hatch or the problem area help if you have them. We read every request and reply with a time for the visit. You are also welcome to call us at +1 (226) 400-3338.
