Basement Replacement Windows

Improve light, ventilation, and moisture protection in your basement

Don't Neglect Your Basement Windows

Basement windows are often the oldest and most neglected windows in the home. Original basement windows in many Quad Cities homes are single-pane glass set in steel or aluminum frames — a major source of heat loss in winter and moisture infiltration year-round. Replacing them with modern, properly insulated units is one of the most cost-effective improvements you can make to your home's energy envelope.

Beyond energy performance, new basement windows improve the habitability of the space. More natural light makes a finished basement feel less like a cave and more like usable living space. Proper ventilation helps control humidity levels, which is critical in Iowa and Illinois where summer humidity can drive moisture into basements and create conditions favorable for mold.

Suburban Construction installs basement replacement windows throughout Davenport, Bettendorf, Moline, Rock Island, and the surrounding area. We properly seal and insulate each installation to prevent future moisture issues — something that a quick DIY job rarely accomplishes.

Basement replacement window installed with proper moisture sealing

Features & Benefits

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Vinyl Frames

Modern vinyl frames eliminate the rust and condensation problems of old steel frames.

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Moisture Sealed

Properly sealed installation prevents water infiltration at the frame perimeter.

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Multi-Pane Glass

Multi-pane insulating glass dramatically improves thermal performance.

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Ventilation Option

Operable vent option for fresh air circulation and humidity control.

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Multiple Configurations

Available in hopper, slider, and fixed configurations.

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Code-Compliant Sizing

Code-compliant sizing available for habitable room requirements.

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Lifetime Guarantee

Lifetime workmanship guarantee on all installations.

Signs It's Time to Replace Your Basement Windows

✓Visible rust staining on the frame or surrounding masonry
✓Condensation between glass panes (seal failure)
✓Water stains or efflorescence on the wall below the window
✓Drafts felt near the window during cold weather
✓Single-pane glass that fogs heavily with interior moisture
✓Windows that won't open, close, or lock properly

Need an Egress Window?

If you're finishing your basement as a bedroom or habitable living space, you may be required by building code to install an egress window — a window large enough to serve as an emergency exit. We handle egress window installations including the excavation, window well, and proper drainage. See our Egress Windows page for details.

Considering an Egress Window?

If your basement has a bedroom or habitable space, building code may require an egress window. We handle the complete installation including excavation and window well.

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Download Our Windows Brochure

Full product catalog with styles, options, and specifications

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