About Single Hung Impact Windows
Single hung impact windows have one operable bottom sash and a fixed top sash. They're the most popular and cost-effective hurricane impact window style in South Florida — perfect for whole-home replacements where homeowners want full Florida Product Approval impact protection without paying for features they won't use.
Best For
- Whole-home impact retrofits
- First-floor windows where exterior cleaning is easy
- Builder-grade replacement projects
Why Homeowners Choose Single Hung Impact Windows
- Most affordable impact window style
- Fewer moving parts than double hung
- Excellent for whole-house replacement projects
- Available in HVHZ NOA-approved configurations
- Energy efficient with optional Low-E impact glass
What our customers are saying
Verified homeowner reviews from installs across Broward, Palm Beach and Miami-Dade.
Right products, flawless install, quieter home
I had a fantastic experience with ClearView impact. Everything was smooth, professional and on time. The team was knowledgeable and helped me choose the right impact windows for my home. The installation crew was respectful, clean and did a flawless job. My house looks fantastic and feels much safer now. And the noise reduction is the best part.
Whole-home replacement, crew kept us updated
We had impact windows installed throughout our entire home and the difference is night and day. Not only do they look so pretty and modern, but we also feel much safer going into hurricane season. The crew was knowledgeable, respectful, and kept us updated every step of the way.
Walked through every option, noise and energy savings
ClearView exceeded all my expectations! The team was incredibly professional and walked me through every option. The impact windows they installed are beautiful and I already notice a huge difference in noise reduction and energy savings. Couldn't be happier with the results!
Specification & installation
What to know before choosing impact Single Hung windows
How a single hung actually works
Only the bottom sash operates; the top sash is fixed in the frame. That single moving part is why single hung is the volume replacement across South Florida — fewer moving components, fewer seals, less to fail, and the lowest price of any operable impact window. Because the top sash does not move, the frame around it can be simpler, which also means slightly more glass area than a double hung of the same rough opening.
Egress: the thing that changes single hung quotes
Florida Building Code requires at least one opening per bedroom meeting egress minimums — 5.7 sq ft of clear opening, at least 24 inches high and 20 inches wide. With a single hung, only the lower sash counts toward that, so the clear opening is roughly half the visible glass minus the frame and meeting rail. Original 1960s–80s units frequently fail this once measured properly, which means the replacement is sized up rather than matched, and occasionally the masonry opening has to be enlarged. We measure clear opening on every bedroom before quoting.
What drives the cost
Opening size first, then glass. Clear laminated is the baseline; grey or bronze tint adds modestly and cuts solar heat on west and south exposures; Low-E adds more and is usually worth it on the elevations that take afternoon sun. Frame material matters less on a single hung than on a wide slider, because the spans are short enough that aluminium's strength advantage is not the deciding factor. Quantity helps: whole-house packages price better per opening than replacing three windows.
What the install involves
Nearly all single hung work in South Florida is retrofit into an existing masonry opening. The old aluminium frame is cut out, the new unit set and anchored to the design pressure calculated for your address and roof height, then the perimeter sealed and the stucco patched outside with a minor drywall return inside. Expect an in-progress inspection before the perimeter is closed and a final afterwards — losing the first one is expensive, because an inspector can require finished stucco opened back up.
Where this is the wrong choice
Wide, short openings where a single hung leaves awkward proportions — a horizontal roller usually suits better. Also not the strongest choice on a heavily exposed windward elevation, where a casement's compression seal outperforms a sliding sash under pressure.
Single Hung by city
What single hung involve differs by city — the permitting authority, the wind zone and the housing stock all change. These pages cover each one specifically.
Single Hung in Fort LauderdaleSingle Hung in HollywoodSingle Hung in Pembroke PinesSingle Hung in WestonSingle Hung in Coral SpringsSingle Hung in DavieSingle Hung in PlantationSingle Hung in Boca RatonSingle Hung in Delray BeachSingle Hung in Boynton BeachSingle Hung in West Palm BeachSingle Hung in WellingtonSingle Hung in Jupiter
FAQ — Single Hung windows