Cornwall's Authority on High-Performance Spray Foam Insulation
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Where We Use Spray Foam in Cornwall
From basements to warehouses — spray foam is the most versatile insulation on the market.
Basements
Eliminate cold floors, moisture, and mold with closed-cell foam on foundation walls.
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Crawl Spaces
Seal out moisture, pests, and drafts in hard-to-reach crawl spaces.
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Exterior Walls
Maximize R-value in wall cavities with seamless spray foam coverage.
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Cathedral Ceilings
Create unvented cathedral ceiling assemblies with integrated vapor control.
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Garages
Insulate garage ceilings and walls to protect living spaces above.
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Additions & Renovations
Get code-compliant insulation for your addition or renovation project.
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New Homes
Build to the highest standard with spray foam in new construction.
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Rim Joists
Seal the #1 source of basement air leakage and heat loss.
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Cold Rooms
Precise temperature and humidity control for cold rooms and wine cellars.
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Attics & Flat Ceilings
Top-of-house insulation for maximum energy efficiency and ice dam prevention.
Learn More →Cornwall & SD&G Compliance
OBC energy requirements for heritage builds and industrial retrofits in Cornwall.
Basement Foundations
New Exterior Walls
Unvented Roof Deck
Secondary Suites
* Building code requirements are based on the latest Ontario Building Code (OBC) and regional standards.
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What We Use & Why
Our material selection is driven by performance, code compliance, and lifetime durability.
High-density polyurethane foam from manufacturers like Huntsman and BASF.
Custom depth applied on-site to ensure a seamless monolithic seal with zero gaps.
Certified R-value of 6.0-7.0 per inch, far exceeding standard fiberglass performance.
Fully certified for use in Canadian construction and 100% code-compliant.
Exterior walls are the primary defense against Ontario's wind and cold. 3.5 inches of 2lb closed-cell foam fills the stud cavity completely, eliminating the 'air gaps' found in standard batt insulation. This prevents convection loops and stops heat from leaching through your framing via thermal bridging.
Technical Depth: Insane Benefits of Sprayfoam
Understanding the physics of high-performance insulation helps you make the right choice.
Standard fiberglass batts provide zero structural benefit. In contrast, 2lb closed-cell spray foam is a rigid, dense material that actually bonds building components together.
Tests have shown that walls filled with 2lb spray foam can have up to 300% to 400% more racking strength than uninsulated walls. It acts as a structural glue for your framing.
This is critical for Cornwall properties facing high wind loads or older heritage homes needing structural stabilization.
Cornwall’s Spray Foam Strategy: Protecting Seaway Heritage & Industrial Assets
Seaway Waterfront Moisture Defense
Properties near the St. Lawrence River face aggressive moisture drive and wind shears. Our 2lb Closed Cell Spray Foam Insulation acts as a certified Class II vapor retarder, sealing walls against humidity and blocking wind wash that renders traditional insulation ineffective.Industrial & Workshop Air Sealing
Cornwall’s industrial base requires advanced Spray Foam solutions for high-span steel buildings and facilities. We provide precision air sealing and insulation that stabilizes internal temperatures and protects against condensation drippage.Basement Moisture & Foundation Defense
Many Cornwall properties suffer from cold floors caused by unsealed foundations. Our 2lb Closed Cell Spray Foam Insulation acts as an impermeable moisture barrier, sealing out ground vapor and stabilizing internal temperatures while reinforcing the foundation.
Ontario Building Code — R-Value Requirements
* Wall R-value varies R-22 to R-24 depending on architectural drawings
Need a Free Estimate for Your Project?
Whether you're a homeowner, general contractor, or builder — we provide same-day quotes for spray foam insulation and fire coatings across Cornwall and the GTA.
Or call us directly: 647-333-3626
Our Sprayfoaming Process for Cornwall
Our process is straightforward: request a free quote online or by phone, and we will schedule an on-site visit to measure your space and discuss your needs. Most residential jobs across Cornwall are completed in a single day.
Coordination & Booking
We coordinate with you to schedule around electrical and plumbing trades.
Prep & Masking
8:00 AM - 10:00 AM
Our team arrives to mask windows, doors, and floors, ensuring zero overspray residue.
Foam Application
10:00 AM - 3:00 PM
Precision spraying of specified closed-cell thickness to walls, rim joists, and ceilings.
Cleanup & Inspection
3:00 PM - 5:00 PM
Scraping excess foam flush, cleaning the site, and preparing for framing inspector sign-off.
Recent Projects in Cornwall & the GTA
Proof of Performance: 100+ 5-Star Reviews
Trusted by Cornwall builders, general contractors, & homeowners for zero-inspection-failures & on-time delivery
“Had our entire basement insulated with closed-cell spray foam before finishing. The crew showed up on time, protected everything with plastic sheeting, and were done in one day. Basement stays warm now even in January. Highly recommend.”
“We hired SPF Solutions for our century home renovation. They sprayed the attic to hit R-60 compliance—the difference in heating costs is night and day. Professional team, fair pricing, and they cleaned up after themselves.”
“Used them to spray the garage ceiling below our master bedroom. No more freezing floors in winter. The 2lb closed-cell foam stopped all cold drafts. Fast scheduling and very clean execution.”
“As a custom home builder, I need sub-trades that show up on time and respect the schedule. Their in-house crew sprayed the entire building envelope. Passed framing inspection first try with zero trimming delays.”
“They sealed our crawl space with closed-cell spray foam. The damp, musty smell in our home is completely gone. They did an excellent job with prep work, covering everything in plastic and tarps.”
“Upgraded our drafty attic with closed-cell spray foam. The crew was very polite, laying drop cloths throughout the house. Energy bills dropped by almost $110/month. The foam has already paid for itself.”
Ready to Insulate Your Cornwall Home or Commercial Project?
Get a free, no-obligation quote from Ontario's top-rated spray foam insulation contractor. We serve homeowners, contractors, and builders.
Call 647-333-3626Frequently Asked Questions — Cornwall Insulation
River-effect humidity and high winds can bypass traditional insulation. Closed-cell spray foam is ideal because it acts as a vapor barrier and air seal that doesn't absorb moisture, keeping your home dry and warm.
Absolutely. Closed-cell foam is an impermeable moisture barrier, sealing your foundation walls from the inside to stop groundwater vapor and prevent the conditions for mold and rot.
Yes, we offer free on-site estimates across all of Cornwall and Alexandria. We'll assess your Spray Foam Insulation needs and provide a fixed-price quote for your project.
Proudly Serving Cornwall, GTA & All of Ontario
We're local to you — with dedicated crews and yards across Ontario, your project is always handled nearby.