SPRAY FOAM
Insulation Services
High-Performance Thermal & Air Barrier Solutions Across the GTA.
From custom homes to commercial projects across the GTA, Rozi Contractors delivers professional closed-cell and open-cell spray foam insulation engineered to meet Ontario Building Code requirements. Superior air sealing, moisture control, and R-value performance — installed by WSIB-covered crews you can trust.
Get Your Free Quote
Submit your project details for a priority estimate. We respond within 24 hours.
Need spray foam insulation for your project?
Call our estimating team directly for a priority quote.
WHAT IS SPRAY FOAM INSULATION?
Spray foam insulation is a high-performance building material that is sprayed as a liquid and rapidly expands into a rigid foam, filling every crack, gap, and cavity in the building envelope. Unlike traditional insulation products, spray foam acts as both a thermal barrier and an air barrier simultaneously.
In Ontario's demanding climate — with harsh winters and humid summers — spray foam insulation provides the superior R-value per inch and airtightness required to meet and exceed Ontario Building Code energy efficiency requirements. It's the preferred insulation choice for custom homes, low-rise and mid-rise builds, and commercial projects across the GTA.
OPEN-CELL vs. CLOSED-CELL
We install both ½ lb open-cell and 2 lb closed-cell spray foam, each designed for specific applications. Our estimators will recommend the right product based on your project's requirements and Ontario Building Code compliance needs.
½ lb Open-Cell
Sound Dampening & Interior Cavities
Open-cell spray foam is a lighter-density foam ideal for interior applications. It expands to fill cavities completely and is excellent for sound dampening between rooms and floors.
- Excellent sound dampening for partition walls & floors
- Fills cavities completely — no gaps or thermal bridging
- Allows walls to breathe while still insulating
- Cost-effective for interior partition walls
- Ideal for residential attics and cathedral ceilings
- Compliant with Ontario Building Code standards
2 lb Closed-Cell
Maximum R-Value & Moisture Protection
Closed-cell spray foam is the highest-performing insulation product available. It provides the best R-value per inch, acts as a moisture barrier, and adds structural rigidity to your walls.
- Highest R-value per inch of any insulation product
- Acts as air barrier, moisture barrier & insulation in one
- Adds structural rigidity and racking strength to walls
- Prevents moisture infiltration & condensation
- Ideal for exterior walls, rim joists & foundations
- Exceeds Ontario Building Code energy efficiency targets
Materials We Use
We use North American approved spray foam chemicals only. All products are tested, certified, and compliant with Ontario Building Code standards for safety and performance.
SPRAY FOAM FOR EVERY BUILD TYPE
Whether you're building a custom home, a multi-unit residential development, or a commercial space across the GTA, our spray foam insulation solutions are tailored to your project's unique demands.
Custom Homes
For custom home builds across the GTA, we apply 2 lb closed-cell spray foam on exterior walls and rim joists to meet Ontario Building Code R-value requirements, and ½ lb open-cell in interior partition walls for superior sound dampening between rooms.
View Residential Pro-Pack
Sub-Divisions
For subdivision developments, our spray foam crews deliver consistent insulation coverage across multiple lots — meeting OBC requirements with fast scheduling for production builders.
View Residential Pro-Pack
Multi-Unit & Low-Rise
Multi-residential projects demand strict adherence to Ontario Building Code fire separation and sound transmission requirements. We deploy spray foam insulation to achieve required fire and sound ratings between demising walls and floor/ceiling assemblies.
View Multi-Res Pro-Pack
Commercial & Industrial
Commercial projects require precise thermal envelope performance to meet Ontario energy standards. Spray foam provides the highest effective R-value while creating a continuous air barrier across large wall and roof assemblies.
View Commercial Pro-PackWHY CHOOSE SPRAY FOAM?
Spray foam insulation outperforms every other insulation product on the market across nearly every measurable metric. Here's why Ontario builders and homeowners are making the switch.
Superior
R-Value.
Closed-cell spray foam delivers the highest R-value per inch — nearly double that of fibreglass batt — meaning thinner walls can achieve higher thermal performance.
Complete
Air Seal.
Spray foam expands to fill 100% of the cavity, eliminating drafts, air leakage, and the convective loops that reduce the effective R-value of traditional insulation.
Moisture
Control.
2 lb closed-cell acts as a moisture barrier, preventing condensation within wall assemblies — critical for Ontario's harsh freeze-thaw cycles.
Energy
Savings.
Homeowners across the GTA report significant reductions in heating and cooling costs after switching to spray foam, thanks to its unmatched airtightness.
HOW WE DELIVER.
From site assessment to final inspection, our spray foam insulation process is engineered for speed, precision, and code compliance.
Site Assessment & Estimate
Our estimator visits the site, reviews your blueprints, and calculates the exact spray foam thickness required to meet Ontario Building Code R-value requirements for your specific wall and ceiling assemblies.
Surface Preparation
We ensure all framing, electrical, plumbing, and HVAC rough-ins are complete and properly masked before spraying. Full area protection is installed throughout the work zone.
Spray Foam Application
Our licensed applicators spray the foam using calibrated professional rigs, ensuring consistent thickness across every cavity. Multiple passes are used for closed-cell applications to ensure proper curing.
Quality Control & Inspection
We trim excess foam, measure thickness at multiple points, and perform a comprehensive quality control check. The site is cleaned and prepped for the municipal insulation inspection.
WHY BUILDERS TRUST
ROZI CONTRACTORS.
Builders and homeowners across the GTA rely on Rozi Contractors because we deliver speed, quality, and complete accountability. As a single-source drywall and insulation provider, we eliminate the frustrating coordination loop between separate sub-trades.
All-In-One Contractor
We handle insulation, drywall, framing, and taping — eliminating trade scheduling conflicts and finger-pointing between sub-trades.
WSIB Compliant & Fully Insured
Every crew member is covered. We maintain comprehensive commercial general liability insurance and an active WSIB clearance certificate.
Ontario Building Code Expertise
Our teams understand Ontario Building Code requirements and municipal inspection processes for every project type.
Serving the Entire GTA
We service the entire Greater Toronto Area and surrounding regions with professional spray foam insulation services.
COMBINE DRYWALL &
INSULATION WITH OUR
PRO-PACK
MASSIVE TIME
SAVINGS
BUDGET
CONTROL
FLAWLESS
QUALITY
PEACE OF
MIND
ONE POINT OF
CONTACT
PREMIUM
FINISH
LEVERAGE OUR ALL-IN-ONE PACKAGE FOR UNMATCHED SPEED AND BUDGET CONTROL.
The Pro-Pack is our flagship, literally complete drywall and insulation package provided in one uninterrupted service. Instead of hiring separate contractors for framing, insulation, boarding, and taping, we handle the entire assembly from start to finish.
This results in massive time and cost savings. It keeps your general contractors significantly ahead of schedule. An all-in-one service directly translates to total control over time, flawless quality consistency, and an unbreakable budget.
Ready For Superior Insulation?
Let Rozi Contractors handle your spray foam insulation scope. Ontario Building Code compliant, delivered on time, and backed by our quality guarantee.
