Custom Window Inserts for Any
Space
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WHAT IS MAGNETITE
Custom Window Inserts for Any Space
Magnetite® window and patio door inserts are precision-built interior inserts designed to fit existing sliding patio doors, windows, and door glass openings. Custom-measured to your specifications, these patio door window inserts are ideal for residential, commercial, historical, and condominium applications, especially where full replacement is not practical. Designed as high-performance sliding window inserts and door solutions, Magnetite inserts help reduce outside noise, improve insulation, support condensation reduction, and block UV.Â
Our acrylic window and patio door inserts are offered in 3mm or 6mm thickness options and two design styles, ProCore and SlimLine. This flexibility allows us to match performance, appearance, and budget to your specific needs.
Contact us to find the best window and patio door insert solution for your home, or scroll down to learn more.
Material options overview
Acrylic Material
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. It is a practical and proven sound control solution for many homes and buildings.
- Lightweight and removable
- Cost-Effective Solution
Find the Best Window Insert
Material for Your Needs
We offer multiple insert materials to suit different sound reduction needs, durability preferences, and budgets.
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 6mmÂ
- Allows for additional privacy or solar films
Why choose Magnetite
Engineered For Performance
High-Performance Insert Panels
Magnetite custom window inserts are available in durable, lightweight acrylic.
Magnetic Seal System
 A low-profile magnetic frame allows each insert to click securely into place, creating a tight, continuous seal.
Sealing and Reinforcement
Integrated foam trim and reinforcement help eliminate micro gaps and trap still air. This improves thermal performance and supports effective sound reduction.
Custom Fabrication
Every insert is custom-measured to your exact window or door opening for a clean, built-in appearance. Inserts lift out easily for cleaning or seasonal access.
Testimonials
What Our Customers Are Saying
FAQs
What are custom window inserts?
Custom window inserts are interior panels made to fit your existing windows. They install on the inside of your home and create an additional insulating barrier that improves comfort, reduces outside noise, and increases energy efficiency without replacing your original windows.
How effective are window inserts at reducing noise?
High quality inserts are very effective at reducing noise when properly measured and sealed. Acoustic window inserts and soundproof window inserts help reduce traffic noise, construction sounds, and general outdoor disturbances by minimizing air gaps where sound travels.
Are window inserts considered soundproof?
While no solution can make a window completely soundproof, soundproof window inserts significantly reduce noise by adding an extra interior layer and increasing the air space between panes. This is one of the most effective non invasive ways to quiet a room.
Do acoustic window inserts work for city or traffic noise?
Yes. Acoustic window inserts are designed to reduce common urban noise such as traffic, sirens, and street activity. They are ideal for condos, homes near busy roads, and offices that need quieter interior spaces.
Will custom window inserts affect how my windows look?
Custom window inserts are designed to be low profile and discreet. They install on the interior side of your window and preserve the original exterior appearance, making them a popular option for property owners who care about aesthetics.
Can window inserts help with energy efficiency?
Yes. Window inserts improve insulation by reducing drafts and heat transfer. This helps maintain consistent indoor temperatures, lower heating and cooling costs, and improve comfort throughout the year.
Are window inserts removable?
Yes. Custom window inserts are fully removable, making them easy to clean or remove seasonally if needed. This makes them a flexible option for homeowners and renters who want a nonpermanent upgrade.
Are window inserts custom made for each window?
Yes. All custom window inserts are individually measured and manufactured to fit each window opening. This ensures proper sealing, better acoustic performance, and long term durability.
