
Mill (Silver) · 3D previewDrag to turn. Pinch or scroll to zoom. Open the sash to see how it moves.
Illustrative model. Your dimensions, frame profiles, and hardware may differ. Refer to the product photos and confirmed specifications.
Current Estimated Lead Time: 4-6 weeks
Lead times are estimates and may change based on order volume, materials, weather, and shipping conditions.
- Order 10 or more configured windows to save 5%
Need professional installation?
Homeowners can request installation at checkout. We will send a separate installation quote within 24 hours after the order is placed. Installer-coordinated delivery may also avoid residential liftgate charges and reduce shipping costs.
Explore installation optionsEngineered for openings wider than they are tall, this two-track horizontal slider runs glass on a side-to-side track system inside a solid aluminum jamb. One screen rides in the rear channel, and both sashes release from the frame for washing without removing the unit from the wall. Each window ships at the exact width and height you submit, making it a clean drop-in replacement for tired sliders in basements, rec rooms, and ranch-style additions.
Benefits
- Side-to-side operation is designed for sliders and wide window openings
- One screen provides ventilation while keeping the configuration simple
- Custom sliding-pane orientation matches the way the primary window opens
- Made-to-order sizing supports older and non-standard openings
Why you'll love it
- A clean two-lite layout for rooms where the window moves left to right.
- Easy operation and a restrained frame profile keep wide views open.
Product specifications
- Custom sizes up to 108" wide by 60" high
- Frame finishes: Mill (Silver), White, Tan, Bronze, Black
- Glass options: clear, P62 obscure, or tempered safety glass
- Screen options vary by configuration and selected material
How to measure
- Record width at the top, center, and bottom and height at the left, center, and right.
- Keep every reading and mark the smallest width and height as fit checks without averaging.
- Identify the sliding side as viewed from outside.
Installation and care
- Level the head and sill carefully so the panels glide without binding.
- Confirm the operating panel and screen move freely before final sealing.
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3 Reasons to Love Storm Windows

Keep the character you love
Add a made-to-measure layer while keeping the original windows, proportions, and details that make your home yours.

Make room for comfort
A well-fitted storm window can help reduce drafts. Choose the mounting style and glass that suit your existing windows and the way you live.

A fit for your everyday
From fixed picture panels to operating sliders, choose a configuration around your view, ventilation needs, and access for cleaning.
FAQs
Can I keep my existing windows?
Storm windows are an additional layer for existing windows. Check that the primary frame is sound and address rot, leaks, or other damage before adding a storm window.
Which opening style should I choose?
Match the way you use the primary window: vertical operation for double-hung openings, horizontal sliders for side-to-side operation, and fixed panels where ventilation is not needed. Confirm clearances before ordering.
What affects the price?
Dimensions, glass, frame finish, and configuration affect product pricing. Oversized openings and specialty details may need a quote. Shipping, tax, and installation are separate.
How should I measure an older opening?
Measure each opening at the intended mounting position and keep readings from multiple points. Record mounting depth, obstructions, and any out-of-square conditions. Follow the guide for your selected product before confirming manufacturing dimensions.
Can I get help with installation?
Review our installation information or contact us with photographs and measurements. Homeowners can request a separate installation quote; availability and project requirements need to be confirmed.
Made for Your Home. Built Around Value.
Swipe the table to compare options →
| Consideration | Our Custom Storm Windows | DIY Window Film Kits | Full Replacement Windows |
|---|---|---|---|
| Your existing windows | Keep sound original windows in place | Keep existing windows; apply film over the opening | Replace existing window components |
| Materials | Framed glass panels with product-specific glazing choices | Thin shrink-to-fit plastic film and adhesive tape | New frame and glazing system; materials vary |
| Fit and finish | Made-to-measure sizes and a choice of frame finishes | Film trimmed to the opening | Sizes and finish choices vary by product |
| Ventilation | Fixed or operating configurations available | Film must be removed to access the covered opening | Operating options vary by product |
| Project scope | Add a fitted layer to a suitable existing opening | Apply tape, fit film, and shrink it with heat | Remove and install window components; finishing work may be needed |
| Where the value is | Custom fit and reusable framed panels while retaining existing windows | A simple, temporary draft-control approach | An option when the existing window needs replacement |
Compare the complete project, including glass, installation, shipping, and the condition of your existing windows. Features and costs vary by configuration and supplier.
Learn more: window film kits · storm windows and replacement options.
Is Interior or Exterior Right for You?
Two ways to add comfort while keeping the windows you love. Start with your mounting space and how you use each room.

Interior Storm Windows
An inside-mounted layer for homes where preserving the exterior appearance matters.
- Access from inside your home
- Removable or operating configurations
- Check mounting depth and hardware clearance

Exterior Storm Windows
An outside-mounted layer with fixed and ventilating styles for a range of openings.
- Choose fixed, vertical, or horizontal operation
- Coordinate the frame finish with your home
- Check mounting surface and drainage
Need help choosing?
Get expert support for your storm window project.
Send measurements, photos, or project notes and we'll help confirm the right window type before you order.


