Preserve Heritage & Historic Buildings with Modern Solutions

Enhance your building’s efficiency with non-intrusive custom storm window inserts designed specifically for heritage conservation and period-accurate protection.

Why Windows Matter in Heritage Buildings

In heritage conservation projects, protecting original craftsmanship is a priority. Many landmark buildings feature single-pane glass and ornate wood sashes that are essential to their character. Magnetite offers a specialized approach to retrofitting windows in an old house or civic building, providing a reversible, non-intrusive solution that allows original elements to remain untouched.

Our custom storm window inserts are installed on the interior to create a sealed, insulated air cavity. This slim magnetic system fits perfectly into the irregular or out-of-square frames common in historic architecture without altering exterior sightlines. By stabilizing interior temperatures and reducing condensation, Magnetite protects original wood and leaded glass from long-term damage. This makes retrofitting windows an ideal choice for meeting modern energy standards while fully complying with heritage building guidelines.

historical heritage building

HOW IT WORKS

Magnetite’s Preservation Solution

Achieve better comfort without replacing your windows. Magnetite works by adding a precisely fitted acrylic or glass insert to your existing window frame, creating an airtight seal that dramatically improves insulation and noise reduction, with no construction required.
01

Inspection & Measurement

Frames, sashes and glass are assessed; exact interior jamb dimensions captured, including uneven openings.

02

Custom Fabrication

Clear acrylic or glass panels and slim magnetic or compression-fit frames are built to match original window geometry.

03

Interior Mounting

Installed on inside trim or jambs; no exterior disturbance or window removal.

04

Reversible Access

Panels lift off for cleaning and seasonal needs, supporting long term conservation.

key advantages

Preserving the Past,
Protecting the Future

Fully Reversible Design

Our inserts are non-permanent and require no structural changes, making them 100% compliant with strict historic preservation standards.

Maintains Original Aesthetics

Because the system is installed on the interior, the exterior appearance and historical character of your building remain completely unchanged.

Custom Geometric Fit

The magnetic mounting system is custom-fabricated to match specialty shapes and out-of-square frames often found in older masonry and wood construction.

Preserves Original Materials

By creating a thermal buffer, Magnetite reduces the condensation that often leads to rot in original wood frames and deterioration of leaded glass.

cathedrals glass window

MAGNETITE APPLICATIONS

Magnetite for Historic Properties

  • Historic Homes &
    Period Residences
    Retain original sashes, mullions, and glass while improving comfort. Ideal for wood double-hung, casement, and leaded windows where replacement is restricted.

  • Institutional & Public Buildings
    Museums, churches, schools, and civic buildings gain energy and acoustic upgrades with minimal disruption and no change to the exterior profile.

  • Commercial Heritage Properties
    Hotels, offices, and adaptive reuse projects reduce street noise and drafts, supporting occupancy comfort and operational savings.
historical school building

What Our Customers Are Saying

Our Customers Frequently Asked Us

FAQ’s

Our system is designed to provide modern insulation and acoustic benefits while keeping original wood, leaded glass, and historical profiles untouched. Because the system is installed on the interior, it aligns with heritage conservation guidelines that prioritize the repair and retention of original materials rather than replacement.

 In most cases, yes. Retrofitting windows in an old house with Magnetite allows you to achieve energy efficiency at 40% to 60% less cost than full window replacements. It preserves the cultural value and craftsmanship of the building while providing the comfort of modern double glazing.

Yes, our custom storm window inserts are non-permanent and remain fully reversible. This is a critical requirement for many historic preservation projects, as it ensures the building can be returned to its original state without any structural changes or damage to the frames.

Old houses rarely have perfectly square window frames. Magnetite uses precision measuring and templates to accommodate the irregular or “out-of-square” frames common in handcrafted heritage casements. The slim magnetic mounting system ensures a tight, custom seal regardless of the window’s age.

A major threat to historic windows is moisture. Magnetite creates a warmer interior surface that reduces fog and frost, providing essential condensation protection. This helps prevent the moisture damage and rot that often affect original wood frames and historic finishes.

Not at all. Because Magnetite installs on the interior, it avoids any exterior alterations and preserves the original sightlines of the property. This makes it an ideal solution for buildings located in protected historical districts where exterior changes are strictly regulated.

Yes. Magnetite panels are lightweight and easily removed from their magnetic frames for cleaning or seasonal airflow. This allows you to enjoy the functionality of your original windows while benefiting from modern insulation when they are closed.

Yes, Magnetite is highly effective for noise reduction. The interior air cavity and acoustic-grade acrylic act as a buffer against outside noise, which is ideal for heritage buildings located in busy urban cores near traffic or transit.