Residential Garage Spray Foam Insulation for Newmarket, Ontario


For over 25 years, Newmarket spray foam insulation has been specializing in creating energy-efficient and comfortable garage spaces. While many general contractors treat insulation as an afterthought, we approach it as a critical component of your home's thermal envelope. Our competitive edge lies in our rigorous adherence to CAN/ULC-S705.2 installation standards and the unmatched skill of our certified spray foam technicians. These experts have mastered the precise application techniques required to ensure a perfect, seamless air and vapor barrier, guaranteeing that your garage insulation job is done right the first time, every time. We don't just insulate; we engineer a permanent climate solution.


Our comprehensive garage insulation service covers the full spectrum of needs, from new construction projects and garage conversions to critical retrofit applications and storm-related repairs. We understand that the garage is often the most overlooked area of the home, leading to significant energy loss and discomfort. That is why we exclusively work with premium closed-cell spray foam materials. Unlike inferior products, our chosen foam is non-toxic, structurally enhancing, and delivers an exceptional R-value per inch. This commitment to premium materials ensures longevity, superior moisture control, and fire safety compliance, providing you with a high-performance, durable solution that cheap alternatives simply cannot match.


What truly distinguishes our service is our meticulous attention to detail, a process honed by years of experience in the Newmarket insulation market. Before we even begin spraying, we conduct a thorough moisture and substrate inspection to ensure optimal foam adhesion and performance. We meticulously mask and protect all surfaces, including garage doors, windows, and electrical components, ensuring a clean work site. Throughout the project, we maintain transparent communication, providing you with real-time updates and a clear timeline. Our post-application quality check includes an inspection of foam thickness and density, followed by a complete site cleanup, ensuring we exceed the competition in both results and professionalism.


We believe in fixing the problem, not just treating the symptoms of a cold, drafty garage. By installing a seamless air and vapor barrier with closed-cell spray foam, we eliminate the root cause of energy inefficiency and moisture intrusion, ensuring your garage insulation will last the life of your home. This permanent solution protects your vehicles, tools, and the adjacent living spaces from extreme temperature swings and humidity. For most standard residential garages, our professional installation team can complete the entire process, from preparation to final cleanup, in approximately one to two days, minimizing disruption and delivering a high-performance result quickly and efficiently.

Why We're Newmarket's Best Residential Garage Spray Foam Insulation Service

Choosing the right contractor for your garage insulation is the key to unlocking a permanent, high-performance solution instead of facing a costly, moisture-trapping mistake!


We don’t just install insulation; we deliver an exceptional service that’s certified, financially savvy, and technically superior—truly redefining excellence in the Newmarket residential garage insulation market.

Certified Expertise

Our reputation stems from resolving issues left by others. Unlike inexperienced operators in the insulation industry, our team comprises CUFCA-Certified Master Applicators, trained in building science and safety. This expertise allows us to address and rectify failed insulation jobs. While competitors struggle with air seals and thermal barriers, our experts effectively diagnose problems, safely remove defective materials, and install high-performance, code-compliant spray foam systems. Our commitment to project rescue showcases our superior skills.

Financial Stability and Unmatched Project Scope

When investing in your home, you need assurance that your contractor will honor their work. We are a stable, established insulation company with a proven track record. This guarantees that our long-term product and labor warranties are backed by a solid business, not just a promise.


Our experience extends beyond single-family homes; we regularly complete large-scale commercial and multi-unit residential projects that demand strict quality control and zero tolerance for error. This high-level expertise applies to your residential garage, ensuring your project meets the same rigorous standards of major developers.

Proven Track Record

Our process is defined by an unwavering obsession with the thermal envelope, focusing not just on the R-value number but also on the overall performance and efficiency of your home. We deeply understand that the garage serves as a critical separation point between your living space and the elements, acting as a buffer that can significantly influence indoor comfort and energy consumption.


To ensure optimal results, our service includes proprietary protocols that not only meet but exceed industry standards, encompassing a comprehensive approach that prioritizes long-term effectiveness and sustainability in every project.

Our Complete Basement Insulation Services


Our end-to-end process is designed for maximum efficiency, safety, and compliance with the Ontario Building Code, ensuring a flawless result regardless of the material chosen.

Detailed Assessment and Material Selection


The process begins with a thorough inspection of your garage, including the walls, ceiling, rim joists, and garage door. We identify existing air leaks and thermal bridging points. We discuss your goals (R-value, budget, fire rating) to determine the ideal solution.


Closed-Cell Spray Foam: The premium choice, offering superior air sealing and vapor barrier in one application. Ideal for rim joists and exterior walls to prevent moisture and condensation.


Batt Insulation (Fiberglass/Mineral Wool): A cost-effective option for interior walls and ceilings, requiring a separate, meticulously installed polyethylene vapor barrier.


Rigid Board Insulation (XPS/Polyiso): Excellent for continuous insulation or garage doors, providing high R-value with minimal thickness.


Critical Preparation and Air Sealing


Proper preparation is the most vital step, especially in a garage where air leakage is rampant. We clear the work area and mask all surfaces, including electrical boxes, pipes, and the garage door mechanism, to protect them from overspray or debris.


We use specialized caulking and low-expansion foam to seal major penetrations (wires, pipes, vents) before the main insulation is installed. This ensures that even with batt or rigid board, the largest air leaks are addressed.


Primary Insulation Installation


Spray foam is applied directly to the substrate (sheathing, concrete) by CUFCA-certified technicians following CAN/ULC-S705.2 standards.


Batt Insulation - Carefully friction-fitted into the wall and ceiling cavities. Crucially, all batts are cut to fit snugly around obstacles to prevent gaps and voids, which lead to cold spots.


Rigid Board - Cut to fit precisely and secured to the substrate. Joints are taped with approved foil or sheathing tape to maintain air barrier integrity.


Vapour Barrier & Fire Safety


For all materials other than closed-cell spray foam, a separate vapor barrier is installed. For all installations, fire safety is paramount.


Vapor Barrier (Batt/Rigid Board): A continuous 6-mil poly vapor barrier is installed over the framing members and sealed at all edges, seams, and penetrations.


Fire Safety (All Materials): All exposed insulation, especially spray foam, must be covered by  1/2-inch drywall on all insulated walls and ceilings. We ensure all materials and installation methods meet the required fire separation standards between the garage and the living space.


Cleanup and Quality Check



Our job is not finished until the site is spotless and the quality is verified.

We inspect the installation for any gaps, voids, or thermal bridging. For spray foam, we verify the required thickness and density. We make sure that all debris, masking materials, and equipment are removed. We leave your garage clean and ready for the next stage of finishing.

Garage Spray Foam Insulation: Why Spray Foam is the Superior Choice

Feature Closed-Cell Spray Foam Fiberglass Batt Insulation Rigid Foam Board (XPS/Polyiso)
Air Sealing Excellent (Primary Air Barrier) Poor (Requires separate, meticulously sealed plastic sheeting) Good (Requires all seams and edges to be perfectly taped and sealed)
Vapor Barrier Excellent (Integral Vapour Barrier) Poor (Requires separate 6-mil polyethylene sheet, prone to punctures) Good (Vapor retarder, but joints must be perfectly sealed)
Condensation Control Superior: Prevents warm, moist air from reaching cold surfaces, eliminating condensation and mold risk. Poor: Retains moisture, leading to mold, mildew, and wood rot in the high-humidity garage environment. Good: Does not absorb water, but condensation can form on the surface if joints are not sealed.
R-Value per Inch High (R-6 to R-7) Low (R-3 to R-4) Medium (R-5 to R-6.5)
Structural Integrity Adds Rigidity: Bonds to the sheathing, adding measurable racking strength to the garage walls. None: Can sag, settle, and leave uninsulated voids over time. None: Provides a flat surface but adds no structural strength.
Fire Safety Code Compliant: Must be covered by a 15-minute thermal barrier (drywall). Code Compliant: Must be covered by a 15-minute thermal barrier (drywall). Code Compliant: Must be covered by a 15-minute thermal barrier (drywall).
Fume/Exhaust Sealing Excellent: Stops carbon monoxide and other vehicle fumes from migrating into the main living space. Poor: Does not seal air, allowing fumes to pass through the wall assembly. Fair: Seals air if perfectly taped, but not as complete as spray foam.
Best For All Garage Areas: Walls, ceiling, rim joists, and garage door panels. Interior Walls/Ceilings: Only when budget is the primary concern and a separate vapor/air barrier is installed. Garage Doors: Excellent for adding R-value to the door panels themselves.

Why You Need To Upgrade Your Garage Insulation

1

High Utility Bills

An uninsulated garage can be a surprising game-changer when it comes to your home’s comfort! In winter, it acts as a massive heat sink, while in summer, it turns into a furnace! Since most garages are attached to the main house, they create quite the challenge for your home’s walls, ceilings, and floors, battling those extreme temperatures.


This means your furnace and air conditioner have to put in a lot of extra work, driving those utility bills sky-high! And if you’ve got a finished room above the garage—which is a fantastic feature in Newmarket homes—you’ll notice it's often chilly in winter and sweltering in summer, a definite sign that it’s time for an upgrade! But here’s the exciting part: investing in garage insulation is one of the quickest and most effective ways to boost your energy savings dramatically.

2

Extreme Temperatures Creep into Your Home

An uninsulated garage wall is like a sneaky thermal bridge, allowing heat to escape and creating those pesky cold spots in the rooms next door. Say goodbye to chilly floors and unwelcome drafts!


By installing closed-cell spray foam in your garage, you can create an amazing, seamless air and vapor barrier that completely cuts off that thermal bridge.


This means not just a cozy garage, but also a steady and comfortable temperature throughout your entire home! Get ready for a warmer, more inviting living space where you can truly enjoy every moment!

3

Protecting Your Assets: Vehicles, Tools, and Equipment

Extreme cold affects way more than just your comfort—it can really turn your Canadian winter into a challenge! Imagine your uninsulated garage dropping to frigid temperatures, putting a strain on your car's battery and engine. Plus, those pricey power tools, paints, and chemicals you have stashed away? They’re at risk of freezing and getting damaged too!


By insulating your garage, you’re not just safeguarding your valuable assets; you’re ensuring that your car starts smoothly every time and your tools serve you well for years to come.


With our specialized garage spray foam insulation service, you’re not just boosting R-value; you’re tackling air leakage, moisture intrusion, and thermal instability once and for all!

4

Condensation, Mold, and Rust

Exciting things happen when warm, moist air from your cozy home (or that freshly parked, snow-covered car) encounters the chilly surfaces of an uninsulated garage wall or ceiling—it creates condensation! While it might sound intriguing, this situation can quickly turn into trouble! That garage condensation seeps into porous materials, leading to some major issues that you’ll want to tackle right away:


 tructural Damage - Who knew that moisture could be so sneaky? It encourages wood rot and deteriorates traditional insulation materials like fiberglass, causing them to sag and lose their precious R-value!


Health Hazards - Talk about a damp adventure! This environment is a mold and mildew paradise, perfect for thriving and potentially making its way into your home through air leaks.

Let’s talk about your insulation project

We’d love for you to take a moment to fill out the form we’ve provided! This will help us assist you with your exciting project, and we can’t wait to get started!

Newmarket Spray Foam Insulation Attic Service Page

Frequently Asked Questions About Garage Spray Foam Insulation.


Insulating your garage is a smart investment in your home's comfort, energy efficiency, and safety. Here are the answers to the most commonly asked questions.

  • Is it worth insulating my unheated, attached garage?

    Absolutely, yes! You’re going to love this! Even if you don’t plan to heat your garage, insulation is a game-changer! Just think about it: it creates an incredible thermal barrier between those harsh outdoor temperatures and your cozy living space! Without insulation in your attached garage, cold air and moisture can sneak into your home, leaving adjacent rooms chilly and skyrocketing your heating bills! Spray foam insulation dramatically slows down that heat transfer and creates a fantastic air seal, keeping your home's energy envelope safe and sound. 

  • What is the best insulation for a garage, and why do you recommend spray foam?

    We absolutely love closed-cell spray foam insulation for garages, and we think you will too! It outshines batt and rigid board options with its amazing benefits. This fantastic insulation creates a seamless air barrier, expertly blocking pesky drafts and keeping cold air and vehicle exhaust from sneaking into your home. Plus, it acts as an effective vapor barrier, which means less condensation on those chilly walls and a big reduction in the risks of mold, mildew, and wood rot. And let’s not forget how it bonds beautifully to sheathing, giving your structure that extra boost in rigidity.s.

  • Will insulating my garage ceiling help with the cold room above it?

    Absolutely! Insulating the garage ceiling is a game-changer for any room above a garage! This area can be a tricky weak point in your home's thermal envelope. The Ontario Building Code (OBC) even champions high R-values (R-30 or more) along with a continuous air and vapor barrier in this floor assembly. We can’t recommend closed-cell spray foam highly enough for this purpose! It’s the ultimate way to achieve those tough air sealing and R-value standards, ensuring your room above the garage remains a cozy haven all year round! Get ready to enjoy your comfortable space!

  • Does spray foam in the garage pose a fire risk, and does it need to be covered?

    When installing exposed foam plastic insulation, including spray foam, adherence to strict safety regulations is crucial. The National Building Code of Canada (NBCC) and the Ontario Building Code (OBC) require that all installations be covered by a fire-protective thermal barrier, which is an essential safety measure. Typically, a durable 15-minute thermal barrier, such as 1/2-inch drywall, is implemented over exposed foam in garage insulation projects. When applied correctly, spray foam insulation not only complies with these codes but also improves fire separation between the garage and the main living area, thereby enhancing safety and overall efficiency in residential environments.

  • Are there special fire separation rules for the wall between the garage and the house?

    Yes. The wall separating an attached garage from the living space is a fire separation wall and has strict code requirements. This wall must be insulated and covered with fire-rated materials (e.g., 5/8-inch Type X drywall) to achieve the required fire-resistance rating. Our process strictly adheres to these rules, ensuring the insulation we install is compliant and that the entire assembly provides the necessary protection for your family.

  • How long does a typical garage insulation job take?

    For a standard two-car garage, the entire process—from preparation and insulation application (including spray foam) to the final cleanup—is typically completed in one to two days. This minimizes disruption to your routine while ensuring a meticulous, high-quality installation.

  • Will insulating my garage stop car exhaust fumes from entering my house?

    Absolutely! One of the most fantastic benefits of using closed-cell spray foam is its ability to create a seamless air barrier! This incredible barrier effectively shuts down any unwanted air migration, including pesky carbon monoxide and vehicle exhaust fumes, keeping them away from your home's air circulation system. Talk about a critical health and safety advantage that traditional insulation just can't match!