Custom Window Inserts to Fit Any Space
PRECISION-MEASURED SOLUTIONS
Custom Fit to Reduce Drafts & Improve Energy Efficiency
Why Custom Fit Matters
Poorly fitted inserts allow air gaps that reduce insulation and sound control. Magnetite produces custom storm window inserts that are measured to your exact window opening, ensuring an airtight seal and consistent performance.
Measurements & Installation:
- On-site measurement recommended for best results
- Professional installation preserves warranty and ensures optimal performance
- Flexible & removable - magnetic or trim-mounted systems allow easy seasonal removal
Compatible Window Types
- Fixed and sliding windows
- Casement and awning windows
- Bay windows and skylights
How we measure
Material options overview
Acrylic
Laminated Glass
Tempered Glass
Acrylic
Acrylic window inserts are a lightweight and cost-effective option for custom window inserts, making it easy to install, remove, and retrofit. When paired with a proper air gap and airtight seal, acrylic provides effective sound reduction, improved energy efficiency, and UV protection, helping create a quieter and more comfortable indoor space.
Acrylic inserts are well suited for budget-conscious projects where weight, removability, and overall value matter most. While laminated glass offers higher sound control in demanding environments, acrylic remains a practical and proven solution for many homes and buildings.
Lightweight and removable
Cost-Effective Solution
High
Laminated Glass
Laminated glass provides the highest level of sound control for custom window inserts. Made from two layers of glass bonded with a clear interlayer, laminated glass absorbs vibration rather than transmitting it, which significantly reduces both high-frequency and low-frequency noise.
In addition to superior sound reduction, laminated glass offers strong UV protection, improved security, and long-term durability. This makes it the preferred option for homes and buildings where maximum performance and comfort are required.
Superior Durability
Superior Soundproofing & UV Protection
High
Tempered Glass
Tempered glass is a strong, durable option for custom window inserts and is commonly selected for safety, clarity, and building code compliance. The heat-treated glass offers excellent impact resistance and long-term durability, making it a reliable choice for both residential and commercial applications.
Tempered glass provides moderate sound reduction and performs well in everyday noise conditions. While it does not offer the same level of acoustic damping as laminated glass, it remains an effective solution when strength, safety, and structural performance are the primary considerations.
Safe & Durable
Code Compliant Material
High
Thickness options
Window Insert Thickness Options
for All Materials
All insert materials are available in two thickness options, each offering different performance and weight characteristics.
OUR WINDOW INSERT STYLES
MAGNETITE®ProCore
- Top Grade virgin panel
- Solid hollow PVC subframe optimized for more structural support
- Robust steel strapping for stronger magnetic contact
- Easy use handle for insert removal
- Available in 3mm and 6mm
- Allows for additional privacy or solar films
MAGNETITE®SlimLine
- Top Grade virgin panel
- PVC subframe
- Steel strapping
- Available in 3mm and 6mm
- Allows for additional privacy or solar films
Why choose Magnetite
Engineered for Performance
High Performance Custom Inserts
Magnetic Seal Frame
Foam Trim & Reinforcement
Custom Fabrication
Our Customers Frequently Asked Us
FAQ’s
What are custom window inserts?
Custom window inserts are interior panels measured and manufactured to fit your exact window opening. They improve insulation, reduce noise, and enhance comfort without replacing existing windows.
Why does custom fit matter for window inserts?
A precise fit is essential for performance. Custom-fit inserts create an airtight seal that helps reduce drafts, improve energy efficiency, and support sound reduction compared to off-the-shelf options.
Are Magnetite inserts considered storm window inserts?
Yes. Magnetite inserts function as modern interior storm window inserts, providing insulation and noise reduction while preserving the exterior appearance of the building.
Can custom window inserts be used for irregular or unique window shapes?
Yes. Custom-built window inserts are well suited for arched, bay, oversized, or uniquely shaped windows where standard products may not fit properly.
Do custom window inserts work in Canadian climates?
Yes. Custom window inserts Canada homeowners and businesses use are designed to handle temperature fluctuations, cold winters, and moisture conditions common across Canada.
Are custom window inserts suitable for commercial buildings?
Yes. Custom inserts are commonly used in offices, schools, healthcare facilities, and other commercial windows applications where comfort, energy efficiency, and noise control are important.
What materials are available for custom window inserts?
Custom inserts are available in acrylic, tempered glass, or laminated glass. Material selection depends on performance goals such as insulation, durability, or sound control.
Can custom window inserts be removed after installation?
Yes. Most custom inserts are designed to be removable, allowing for easy cleaning, ventilation, or seasonal access without permanent changes to the window frame.
