Questions About Spray Foam In Leamington

It depends on the product, the installed thickness and how hard the space is to work in. Across Ontario in 2026, open cell generally runs somewhere around one and a half to two and a half dollars a square foot, and closed cell roughly three to seven. Those are market ranges rather than a quote for your building.

Getting to the work drives the total harder than the foam does. A basement you can stand up in and a crawl space with eighteen inches of headroom might swallow the same amount of material, but one of them takes a crew twice as long on their backs.

There is a floor on what we can quote. Getting a rig on site, setting up and opening material costs the same whether the area is large or small, so very small jobs carry a minimum. You hear that figure before anything is booked.

Because we have the most humid summers in Ontario and a lot of basements were insulated with a gap behind the batts.

Warm outdoor air carries a great deal of moisture in July and August. It moves inward through block and brick, reaches the cool concrete behind the insulation, and condenses there. The batt gets damp, a poly sheet on the warm side holds the water in, and nothing dries out until the weather changes.

Closed cell foam sprayed directly onto the concrete removes the gap entirely. There is nothing behind it for the air to reach.

It cannot, and an installer who tells you otherwise wants the sale more than the outcome. Foam controls air and vapour. Standing water under pressure goes straight past it, and it replaces nothing that drainage does.

Where water is still coming in, the outside gets sorted first. Ground falling away from the wall, downspouts discharging well clear, weeping tile actually running. Insulation comes after that. We will decline a job rather than bury a leak behind foam.

Sealed, in almost every case around here. The vents were put in on the assumption that outside air would dry the space out, and in this climate they do the opposite for most of the year.

Closing the vents, sheeting the ground and insulating the perimeter walls brings the crawl space inside the building envelope. Floors above get warmer and the framing stops taking on moisture every summer.

In occupied space, yes. The Ontario Building Code requires a thermal barrier over exposed foam, and half-inch gypsum drywall is the standard accepted assembly. Approved spray-applied intumescent coatings are an alternative.

Where a space is not normally lived in, an attic or a crawl space for instance, a tested ignition barrier of lesser thickness will usually satisfy the requirement.

Most homeowners do not know this and a lot of cheap quotes leave it out. Ask about it before you compare prices.

For properly mixed foam, curing is done and off-gassing has stopped by the time we hand the space back. For most residential work that is the same day, and we give you a re-occupancy time for your specific job before we start.

A chemical smell that persists for weeks or months means off-ratio foam, where the two components were not mixed in the right proportion. That does not cure out and it cannot be sprayed over. It has to be cut back to clean substrate and redone.

Closed cell is rigid, runs about R-6 to R-7 an inch, and at sufficient thickness it is its own vapour barrier. It goes below grade, on crawl space walls, on rim joists and in agricultural and cold storage buildings.

Open cell is soft, runs about R-3.5 to R-3.8 an inch, costs less, and does not control vapour at all. It suits interior partitions, sound damping and ceilings under conditioned space.

In Leamington the moisture question decides it more often than the R-value does.

The Home Renovation Savings Program is the current one, delivered by Save on Energy with Enbridge Gas, and it is scheduled to run to 30 November 2026.

There is a standalone attic insulation stream that does not require an energy assessment, and a larger multi-measure stream that does require both a pre-work and a post-work assessment. These two get confused constantly, and being sent for an audit when you only want the attic done wastes your time and money.

We are not the program administrator, so we do not quote amounts. We will tell you which stream your job fits and where to check the current terms.

Not the glazing. Foam is opaque and the structure exists to let light in.

What we do insulate on a greenhouse site is the headhouse, packing and grading rooms, cold storage, boiler rooms, north gable ends and the perimeter curtain wall below bench height. On a heated range the perimeter work usually has the shortest payback of anything on the property.

Yes, and it is quoted as a separate job so you can see what that part costs. Wet, mouldy, rodent damaged or flattened material has to come out before new insulation goes in.

We will not spray over failed insulation. Foam bonds to whatever is underneath it, so spraying over a damp batt seals the problem into the assembly rather than fixing it.

If the existing insulation is dry and intact, we will tell you it can stay.