Single Hung Impact Windows

Single-hung impact windows are among the most widely installed window types in South Florida, combining certified hurricane protection with a straightforward design that suits a wide range of residential and commercial applications. America's Window & Door supplies and installs single-hung impact windows throughout Broward County, providing homeowners with a cost-effective path to Florida Building Code compliance and year-round storm protection.

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What Are Single-Hung Impact Windows?

A single-hung window has two sashes: an upper fixed sash and a lower sash that slides vertically to open. The upper sash remains stationary while the lower sash moves up and down for ventilation. Impact versions feature laminated glass and reinforced frames engineered to meet the wind-load and debris-impact requirements of Florida's High Velocity Hurricane Zone.

The laminated glass in impact single hung windows consists of two panes bonded around a polyvinyl butyral (PVB) interlayer. This construction keeps the glass intact even under direct impact, preventing the pressure breaches that cause structural damage during hurricanes. All products installed by America's Window & Door carry Miami-Dade NOA certifications valid for Broward County permits.

Benefits of Single Hung Impact Windows

The primary advantage of single-hung impact windows is their certified storm protection and lower cost than double-hung configurations. Because only the lower sash operates, single-hung windows have fewer moving parts, which means simpler installation, lower material costs, and a straightforward permitting process. For homeowners replacing multiple windows across a larger home, the per-unit savings add up significantly.

Beyond hurricane protection, single-hung impact windows deliver year-round performance benefits in South Florida's climate. The laminated glass reduces solar heat gain to lower cooling costs, blocks UV radiation that fades furniture and flooring, and provides meaningful noise reduction compared to standard single-pane aluminum windows. Many insurance carriers offer premium discounts for homes fully fitted with certified impact windows.

Who Are Single Hung Impact Windows Best For?

Single-hung impact windows are an excellent choice for homeowners and property managers who want certified impact glazing without the higher cost of operable double-hung units. They work well in rooms where ventilation from the lower sash only is sufficient, such as bedrooms, living areas, and most kitchen applications throughout Broward County's residential stock.

They also fit well for replacement projects in mid-century and older homes where the existing openings were designed for single-hung configurations. Matching the original window type avoids the framing modifications and added costs of switching styles. In HOA communities with exterior appearance standards, maintaining the original window profile is often specifically required.