Your Home's Comfort Starts From the Core.
Professional spray foam insulation for homes and buildings across Hamilton and surrounding Ontario communities.
Engineered air sealing and thermal performance
Expanding polyurethane foam creates a continuous, airtight thermal envelope across your building envelope. By sealing gaps, cracks, and structural seams directly on contact, spray foam stops winter drafts and stabilizes indoor ambient temperatures where traditional batt insulation falls short.
Because air leakage accounts for significant seasonal heat transfer, spray foam targets the bypass points in rim joists, exterior walls, and attic flats. The foam adheres securely to framing lumber, steel, and masonry, eliminating the air voids that cause drafts and condensation.
Monolithic air barrier
Expands into rim joists, corners, and stud cavities to prevent draft infiltration.
Consistent thermal resistance
Maintains true R-value across extreme Ontario seasonal temperature swings without sagging or settling.
Vapour and moisture defense
Closed-cell structure resists moisture transmission to protect structural framing members.
CUFCA certified installation
Applied strictly by licensed technicians following CAN/ULC S705.2 national building standards.
Complete building envelope protection
From Hamilton attics to Niagara commercial warehouses, we apply high-performance open and closed-cell spray foam to seal thermal drafts, stop condensation, and lower monthly heating costs.
Attic Spray Foam
Seal roof decks and attic floors to halt rising heat loss and eliminate winter ice dams. Keep conditioned indoor air right where it belongs year-round.
Basement & Foundation
Apply high-density closed-cell foam directly to interior masonry and rim joists. Block ground moisture penetration and create warm, dry usable basement space.
New Construction
Complete exterior wall cavity and stud bay fills for custom homes and major additions. Exceed Ontario Building Code standards with maximum R-value per inch.
Existing Homes Retrofit
Target drafty rim joists, crawlspaces, and uninsulated knee walls without gutting finished drywall. Restore whole-home comfort and reduce monthly utility expenses.
Commercial Spray Foam
Thermal and acoustic barrier insulation for metal buildings, warehouses, and agricultural barns. Stop roof condensation and lower heavy heating requirements.
Precision Air Sealing
Seal micro-gaps around electrical chases, plumbing stacks, and sill plates before thermal insulation. Create a continuous barrier that blocks air leakage paths.
Radon Mitigation
Apply a continuous, seamless spray foam barrier across foundation walls and sub-slab areas to block radon gas entry points. Pairs with sub-slab depressurization for a complete radon mitigation solution.
Unsure whether your project needs open or closed-cell foam?
We inspect substrate conditions, framing depths, and regional moisture profiles across Greater Hamilton.
.5lb Open-Cell Foam: Sound Control Meets Insulation
.5lb (light-density) open-cell spray foam absorbs and dampens sound transmission between rooms, floors, and mechanical spaces, while also delivering solid thermal insulation value — making it ideal for both comfort and quiet.
Superior sound absorption
Open-cell foam's soft, porous structure absorbs airborne noise across interior walls, ceilings, and floor joists, reducing sound transfer between rooms and floors.
Added thermal insulation value
Beyond acoustic dampening, .5lb foam still delivers meaningful R-value, helping stabilize indoor temperatures alongside its sound-control benefits.
Lightweight, cost-effective coverage
Expands up to 100x its volume to fill deep framing cavities and irregular spaces without adding structural weight or high material cost.
Ideal for media rooms, offices & commercial spaces
Commonly used in home theaters, multi-unit party walls, offices, restaurants, and live-music venues where noise control matters as much as thermal comfort.
Commercial acoustic + thermal application
Greater Hamilton installation
The SprayCOR transformation
See the physical difference a continuous thermal seal makes in drafty rooflines and attic knee walls.
Exposed structural lumber allows air bypass, winter drafts, and moisture condensation along exterior roof slopes.
Closed-cell polyurethane seals all structural joints, stops airflow dead, and locks in whole-home temperature stability.
How continuous thermal barriers work
Traditional batt insulation leaves gaps at framing connections that draw heated air up and out like a chimney. Closed-cell spray foam expands rapidly on contact to adhere directly to rafters and wall studs, stopping convective loop losses and preventing roofline frost buildup.
Before: Raw framing & drafts
Gaps around knee-wall cavities let heated indoor air escape directly into vented roof spaces.
After: Seamless thermal envelope
Expanding closed-cell foam fills every crack, truss joint, and electrical penetration completely.
Built on precision and local accountability
We seal homes and commercial facilities across Hamilton and surrounding communities with certified equipment, clean job practices, and durable thermal resistance.
Local Ontario contractor
Based in Hamilton with deep roots across Ancaster and Burlington. You work directly with local specialists accountable to our community.
Professional installation
Rigorous pre-application prep, disciplined overspray containment, and calibrated equipment operated by certified building envelope technicians.
Quality Canadian-rated materials
High-yield closed and open-cell polyurethane formulations engineered specifically to withstand Southern Ontario's extreme winter freeze and summer humidity.
Meticulous site protection
Complete surface masking, active air ventilation throughout application, and spotless job-site cleanup before our crew packs up.
Air sealing focus
We target thermal leakage points, rim joists, and structural gaps first, creating a truly monolithic air barrier that stops drafts permanently.
Free, transparent estimates
Direct on-site assessments with detailed scope breakdowns, accurate square footage pricing, and zero sales pressure.
Planning a retrofit or new construction project?
CUFCA registered, fully licensed, and insured for residential and commercial insulation.
How we seal your home
From first assessment to final spray application, here is how we make your building airtight, energy-efficient, and comfortable year-round.
Contact us
Reach out online or call to discuss your property's insulation needs and timeline.
Free estimate
A technician assesses your building geometry, access, and insulation requirements.
Professional installation
Clean, safe application with complete site masking and certified ventilation.
A more comfortable space
Enjoy draft-free rooms, even temperatures, and immediate thermal relief.
Ready to review your attic, basement, or build?
Serving Hamilton, Burlington, Niagara, and surrounding communities.
Is Your Attic Ready for Winter?
Substantial household heat escapes through unsealed attic floor plates and roof decks during Ontario winters, leading to cold ceiling surfaces and drafty living spaces.
Drafty upper floors
Warm indoor air rises and escapes through ceiling gaps, pulling cold air into lower living areas.
Cold ceiling surfaces
Inadequate thermal resistance leaves interior drywall cold, increasing heating demands on your furnace.
Airtight roof deck seal
Closed-cell spray foam adheres directly to rafters, stopping condensation and air leaks at once.
Ask Us About Available Rebates
Provincial energy efficiency programs and regional utility incentives update frequently. Qualification criteria depend on your building type, heating source, and scope of work. During your on-site estimate, our insulation specialists review current program availability and discuss the exact paperwork and pre-retrofit audit steps required for your property.
Active provincial & utility programs
Rebate frameworks, grant allocations, and qualification rules change periodically across Ontario municipalities.
On-site assessment verification
We review your home envelope during your free estimate to identify eligible upgrade areas before work begins.
Documentation & audit support
Our team helps you organize required project paperwork, product technical sheets, and audit steps.
SprayCOR provides honest documentation support and thermal assessments to help homeowners optimize energy envelope performance.
All work handled by licensed, insured Canadian technicians.
Direct travel to residential builds, retrofits, and commercial sites.
Serving Hamilton & beyond
Operating out of Mount Hope, SprayCOR dispatches specialized spray foam rigs across the Golden Horseshoe and Niagara Peninsula. We provide on-site thermal evaluations, precise airtight retrofits, and full-building insulation for residential, agricultural, and commercial projects.
Get your free estimate
Receive prompt, detailed pricing directly from Canadian-certified spray foam technicians. We evaluate your building envelope specifications and recommend the exact open or closed-cell depth required for maximum thermal resistance.
Hamilton, Ancaster, Dundas, Stoney Creek, Binbrook, Burlington, Grimsby, Brantford, and Niagara.
Ready to Make Your Home More Comfortable?
Schedule a comprehensive building envelope assessment with our Canadian-certified spray foam technicians. We deliver prompt scheduling, airtight thermal protection, and measurable heating savings across Hamilton and surrounding communities.
Free on-site project evaluations. Serving Hamilton, Burlington, Niagara, and nearby regions.
Connect with SprayCOR
See active job-site spray foam installations, thermal boundary tests, and current attic and basement upgrades across Southern Ontario.
Serving Hamilton, Burlington, Niagara & surrounding areas
Your home's comfort starts from the core
Professional spray foam insulation contractor serving Hamilton, Ancaster, Burlington, Niagara, and surrounding communities.
Contact
- Direct Line289 588 CORE (2673)
- Emailinfo@Spraycor.ca
- HeadquartersMount Hope, Ontario
Navigation
© 2026 SprayCOR. All rights reserved.