Expert Spray Foam Insulation In Kingston
Closed-cell spray foam insulation for Kingston homes. Seal rim joists, basement walls and drafty spots in older homes to cut heating bills.
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Drafty rooms, uneven temperatures, and rising energy bills are often caused by air escaping through gaps traditional insulation can’t fully seal. Spray foam expands into those spaces, creating a tighter thermal barrier around your home.
- Spray foam expands into cracks and gaps that batt or blown-in insulation may leave exposed.
- A tighter air seal helps keep heated and cooled air inside your home year-round.
- It’s especially effective around framing, plumbing, wiring, additions, and other irregular spaces.
Properly applied spray foam creates both an air seal and an insulation barrier in a single application.
Spray Foam vs Fibreglass Batts
(Ottawa 2026 Prices)


*Typical Ontario pricing range. Actual cost varies significantly by required R-value, insulation thickness, project size, access, prep work and minimum job charges.
5 Signs Your Home May Benefit From Spray Foam Insulation

Noticeable Drafts Near Walls, Floors, Or Outlets
Cold or warm drafts near walls, floors, or electrical outlets often point to air leaks.

Rooms That Are Hard To Keep Comfortable
Rooms that never quite reach the thermostat temperature can mean poor insulation nearby.

High Heating Or Cooling Bills
Escaping conditioned air makes your HVAC system work harder and drives up energy costs.

Ice Damming Or Uneven Snow Melt On The Roof
Heat escaping through the attic can cause uneven snow melt and ice buildup along the roofline.

Visible Gaps Around Framing, Pipes, Or Wiring
Gaps around penetrations in the attic or crawl space are common spots for air leakage.
Colair can assess where your home is losing energy — contact us now.
Get Your Kingston Spray Foam Insulation Quote
Send us a few details about your home and project. We’ll give you an initial price range and let you know if an on-site visit is needed.
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Which insulation service are you looking for?
What are you looking to insulate?
Approximately how many square feet need to be insulated?
Select a service and at least one area to continue
We review your answers and reach out with a price range for your project. If we need a closer look for an exact price, we'll let you know.
No. Getting a price is free, and there's no obligation to go ahead.
Yes. We only use your details to prepare your quote. We never sell or share your information.
No. We'll reach out once with your quote and next steps — that's it.
Spray Foam Insulation In Kingston
Kingston's older homes can be beautiful, but they're rarely airtight. Rim joists, basement walls and the gaps around old pipes and wiring let in a lot of cold air off the lake in winter.
Closed-cell spray foam seals and insulates those areas in one step. Older foundations can have moisture issues, so we always check for moisture first and only spray where it makes sense.
Neighbourhoods we serve in Kingston:
- Downtown
- Sydenham Ward
- University District
- Portsmouth Village
- Kingscourt
- Strathcona Park
- Bayridge
- Cataraqui Woods
- Westbrook
- Woodhaven
- Collins Bay
- Barriefield
- Kingston East

What We See In Kingston Homes
Older Downtown Homes
Sydenham Ward, Portsmouth Village, Downtown
Air leaks around rim joists, pipes and wiring are common in older homes. Spray foam seals them, after we check the foundation for moisture.
West End Basements
Bayridge, Cataraqui Woods, Strathcona Park
Finishing a basement is the best time to insulate the rim joists and walls before drywall goes up.
Newer Homes
Westbrook, Woodhaven
Rooms over garages and cantilevered floors in newer homes are often cold. Closed-cell foam seals and insulates them properly.
Spray Foam Insulation Cost In Ottawa
Typical spray foam project prices in Ottawa, and when it's worth paying more than traditional insulation.
Rim Joists / Smaller Areas
$1,500–$3,000+
Rim joists, a crawl space, or a section of basement wall. Most projects start around $1,500.
Basements, Attics & Larger Areas
$3,000–$8,000+
Full basement walls, an attic roofline, or a bonus room.
Large Or Multi-Area Projects
$10,000+
Several areas at once, whole-home upgrades, or major renovations.
Spray Foam Is Usually Worth It For
- Rim joists and basement walls, where air leaks and moisture meet
- Finishing a basement and wanting a warm, dry space
- Vaulted or cathedral ceilings with little room for insulation
- Rooms over garages that are always cold
- Drafty older homes with gaps around framing, pipes, and wiring
A Cheaper Option May Be Enough For
- Open attic floors with plenty of space (blown-in is often better value)
- Topping up attic insulation that's already in decent shape
- Open interior walls where air sealing isn't the main problem
Want to know what your project will cost? Send us a few details and we’ll get back to you with a price range.

Why You Should Choose Colair For Your Spray Foam Application
A bad spray foam job can leave a lingering smell, shrink away from the framing, or need expensive removal. Here's how we make sure yours is done right the first time.
Conditions checked before we spray
Surface moisture and temperature affect how foam cures, so we check them first instead of spraying and hoping.
Applied in controlled passes
Foam goes on in layers at the right thickness, so it cures evenly instead of cracking or pulling away from the framing.
Thickness measured, not eyeballed
We check depth across the area to confirm it meets the insulation level you're paying for.
Trained application technicians
Our techs are trained in proper spray foam application, ventilation, and site safety.
What To Expect On Install Day
Free Quote
Tell us about your project and we'll give you a price range, visit to measure if needed, and confirm your written quote.
Prep & Protection
Floors, windows, and anything not being insulated are covered, and ventilation is set up before any foam is sprayed.
Spray Foam Application
Foam is applied in controlled passes to the target thickness. Everyone, including pets, stays out of the work area.
Curing & Re-Entry
The space stays ventilated while the foam cures. Re-entry is often around 24 hours; we confirm your exact time before we start.
Cleanup & Walkthrough
We clean up the work area, check coverage and thickness, and walk you through the finished job.
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Spray Foam Insulation In Kingston: FAQs
Need a quick answer? Our team is just a phone call away.
Spray Foam Insulation In Kingston
Often, yes, but we check for moisture first. Older foundations sometimes have water issues that need to be fixed before any insulation goes on. We'll tell you honestly what makes sense.
Send us a few details about your Kingston home and the area you want insulated. We'll reply with a price range and let you know if we need to see it in person first. Financing is available through Financeit.
Closed-cell spray foam resists moisture and acts as an air barrier, which helps prevent condensation. We check for existing moisture problems before spraying, since those need to be fixed first.
Cost & Value
Closed-cell spray foam typically runs about $3–$6 per sq. ft. installed, depending on thickness, access, and prep. Smaller rim joist or basement jobs are often $1,500–$3,000+, larger areas $3,000–$8,000+, and big multi-area projects can go past $10,000.
It's usually worth it where air sealing and moisture matter most: rim joists, basement walls, vaulted ceilings, and rooms over garages. For open attic floors, blown-in insulation is often the better value. We'll tell you which fits your home when we quote your project.
Sealing air leaks and improving insulation reduces the load on your heating and cooling system, which typically lowers energy costs. How much depends on how leaky and under-insulated the area was to begin with.
Yes. Colair offers financing through Financeit, so you can spread the cost of your project over flexible monthly payments. The application is simple and done online, and you'll get a quick decision. Ask about financing when you request your quote.
Energy-efficiency incentive programs change often and eligibility depends on your home and the upgrade. Ask us about currently available incentives when you request your quote.
Safety & Comfort
Yes. Once fully cured, spray foam is stable. The space is ventilated during application and curing, and you stay out of the area until it's safe to return.
Re-entry is often around 24 hours, but it depends on the product, the area, and ventilation. We confirm your exact re-entry time before the job starts so you can plan ahead.
Everyone, including pets, should stay out of the work area during spraying and until the re-entry time has passed. Once cured, the foam is stable. If someone in your home has sensitivities, tell us when you request your quote and we'll plan around it.
There can be an odour during application and curing, which is why the space is ventilated. A properly mixed and applied foam shouldn't leave a lasting smell once it has cured.
Closed-cell spray foam resists moisture and acts as an air barrier, which helps prevent the condensation that leads to mold. We check for existing moisture problems before spraying, since those need to be fixed first.
The Process
Most residential projects take a few hours to a full day depending on the size of the area being insulated.
We install closed-cell spray foam. It's dense, insulates more per inch than other common insulation, and resists moisture while sealing air leaks, which makes it the standard choice for Canadian homes.
It depends on the space. Damaged, wet, or contaminated insulation usually needs to come out, and open walls are cleared before spraying. We'll tell you what's needed when we quote your project.
In most living spaces, building code requires spray foam to be covered by a thermal barrier such as drywall. We'll let you know if your space needs one.
Choosing A Contractor
Ask whether their installers are certified, which product they use, what the warranty covers for both the product and the workmanship, and how long you'll need to stay out of the house. A good contractor will answer all of these in writing.
For very small jobs, like sealing a few gaps or a small patch, a DIY foam kit may be all you need. Larger areas like rim joists, basement walls, and attics need professional equipment, careful chemical mixing, and proper ventilation, and the work needs to meet building code requirements. That's where hiring a professional pays off.
Yes, spray foam can be added to attics, walls, and crawl spaces in existing homes, not just new construction.
Ottawa and most surrounding communities, including Kanata, Barrhaven, Orleans, Kingston, and more.
Ready To Seal Out Energy Loss?
Get a fast, no-obligation spray foam quote. Send us a few details and we'll give you a price range, with no surprises.



