Single Hung Impact Windows in South Florida

Single hung impact windows have a fixed upper sash and a lower sash that slides up. USAHI installs ES Windows for South Florida homes, with the selected product, glass and installation matched to each opening.

How a single hung impact window works

The upper sash stays in place while the lower sash lifts for fresh air. Lower it fully and engage the supplied locks to close the window. Check the exact product’s impact approval, allowable size and installation details before ordering.

Glass and hardware options depend on the model you select. Compare the exact configuration rather than assuming every ES series has the same features. For whole-home planning, start with our overview of impact windows for South Florida homes.

A single hung can suit a bedroom if the selected unit meets the room’s applicable requirements. Where emergency escape and rescue is required, check the actual clear opening and replacement conditions before ordering. Compare a casement option if another operating style may suit the opening better.

ES-EL100 is one manufacturer-listed single-hung example. Its manufacturer datasheet is a starting point for configuration information. Confirm the model currently offered and its applicable approval for your size and installation before ordering.

Frame material, finish and decorative grids depend on the selected ES model and configuration. Bring a photo of the appearance you want and any association requirements; confirm available options in the written proposal.

Ask which laminated or insulating-laminated glass configurations are available for the quoted model, and whether a suitable Low-E option is offered. Compare U-Factor, Solar Heat Gain Coefficient and daylight using the exact assembly’s NFRC ratings.

The number and size of openings, selected model, glass and finish affect the price. Include removal, access, any supporting-frame repairs, sealing, trim work and permit coordination. Confirm association requirements separately where applicable.

To see the numbers for your openings, book a free single hung estimate.

The fit is more than the frame size

Will a single hung work for this room?

It can be a practical choice when you want vertical operation without an outward-swinging sash. Check the opening you can actually use, the effort to lift it and how you will reach it after furniture is in place.

Fresh air comes through the lower part.

The upper sash stays fixed. The sash position and product design determine the usable opening; the full frame size is not the ventilation opening.

Bedroom use needs a separate check.

Where an emergency escape and rescue opening is required, the clear opening and applicable replacement rules must be checked for that room. “Single hung” by itself does not establish compliance.

Try the movement and the lock.

Consider sill height, your reach and the effort to raise, lower and latch the sash. A deep counter or large piece of furniture can make an otherwise suitable window awkward to use.

A fixed upper sash above a lower sash that lifts. The clear opening below the raised sash is smaller than the full frame. Diagram is conceptual, not a specification.Fixedupper sashUsable clear openingwith the lower sash raisedLower sash moves up inside the frame ↑
Conceptual operation only. Dimensions, opening area and sash travel vary by product; this is not an approval drawing.
Why choose it

Benefits and checks for single-hung impact windows

Five details to compare before you choose a single-hung window.

Window frame and latch beside an interior sill

Storm-Ready Sash

Before a storm, close the lower sash fully and engage the window’s supplied locks. Protection depends on the complete approved assembly and its installation, not just the style name.

Quieter Bedrooms

The glass, frame, seals and installation all affect sound transmission. Ask for test data for the exact assembly if bedroom noise is a priority; a single-hung design alone does not establish a sound rating.

Less Heat Indoors

Choose the glass for the room’s sun exposure and daylight needs. Compare U-Factor and solar heat gain for the exact window; having one fixed sash does not by itself prove a lower energy bill.

Insurance Credits

Your insurer determines any applicable wind-mitigation credit. Keep permits, final records and the applicable Florida Product Approval or Miami-Dade NOA for the installed windows; ask your insurer which inspection records it needs.

Locked Lower Sash

Check that the lower sash closes smoothly and all supplied locks engage as designed. Follow the selected model’s operating instructions; do not force a sticking sash or assume every model uses the same hardware.

Compare the movement

Single hung, horizontal roller or casement?

The better fit depends on the opening and how you want to use it. Compare movement and clearance first, then check each exact product’s approval and usable opening.

Three ways to bring fresh air into a room
StyleHow it opensWhy consider it?Check before choosing
Single hungThe lower sash lifts; the upper stays fixed.Vertical operation without an outward swing.Lifting effort, reach, clear opening and access to the outside glass.
Horizontal rollerOne or more panels slide sideways.A broad opening where side-to-side movement is convenient.Panel configuration, track cleaning and the opening left when the panel moves.
CasementA side-hinged sash swings outward.An alternative worth comparing when operating the window by a handle suits the room.Outside swing clearance, handle reach and exact clear-opening dimensions.

No style is automatically the strongest, quietest or bedroom-compliant. Those comparisons require the actual product and installation details.

Looking for a window that stays closed to frame a view? Compare fixed picture impact windows alongside an operable window where ventilation is needed.

Before you replace

When should existing single-hung windows be assessed?

These signs deserve a closer look at the window and the surrounding opening. An inspection helps determine whether repair or replacement is the better approach.

01

Stuck Lower Sash

A sash that sticks may have worn hardware, alignment issues or frame damage. Have the cause checked before deciding whether repair or replacement is the better approach.

02

Drafts at the Rail

Air movement near the meeting rail can indicate a sealing or fit problem. Inspect the sash, weatherstripping and surrounding opening so the proposed work addresses the cause.

03

Water at the Sill

Staining or soft material near the sill may indicate water entry. Check the window, drainage and surrounding wall; replacing the unit alone may not resolve every leak.

Estimated pricing · USD

What should you budget for single hung impact windows in South Florida?

For an early single-hung replacement budget, the Florida program’s general impact-window benchmark provides a starting point: about $900–$1,750 per window. It is not a Single Hung or ES-model price list. Read the published general Florida window-cost benchmark.

The measured size, glass, finish, access and surrounding repairs determine your actual quote. Large or complex work can exceed this reference band. Read what drives impact-window costs in Florida.

Published reference range / per window
Lower end$900
Upper end$1,750

Planning guidance, not a USAHI quote or a guaranteed price limit.

Get a price for your actual openings →

Source: My Safe Florida Home’s published cost benchmark, dated July 2025, based on a 1,750-square-foot Florida home; checked October 2026. The source does not itemize installation, permits or repairs. Confirm those inclusions in your written quote.

A lived-in room with white-framed windows and natural daylight
Plan the cost

Ways to pay for
your windows

  • For qualified homeowners
  • Offered by third-party providers
  • Terms vary by program and location
Explore financing options
Paying for the job

Payment options for single-hung window replacement

Whether you replace one window or several, compare the full installation scope first. Financing may be available for qualified homeowners through independent third-party providers. Review financing options for current terms, eligibility and program availability.

Start with a clear installation scope.

Compare the windows and work included in your quote, then review the available payment options.

✓ Free estimate✓ Third-party plans✓ Project planning
Living with your choice

Operating, maintaining and documenting your single-hung windows

01

Cleaning access

Ask how both sides of the glass are reached. Do not assume the sash tilts in or lifts out; follow the selected model’s care instructions and plan safe access for upper floors.

02

Sash, tracks and drainage

Keep the movement path clean using the manufacturer’s method. Have sticking, damaged seals or blocked drainage checked; avoid forcing the sash or covering drainage openings.

03

Locks and storm preparation

Check that the sash closes and all supplied locking hardware engages correctly. Keep the window closed and locked during storms; do not rely on a partially open position for protection.

Bring this to the estimate

What should your South Florida single-hung quote specify?

01
The window itself

Exact model, measured size, frame finish, glass package, screen and hardware where included.

02
The opening check

Required pressures, applicable approval and any room-specific clear-opening requirement.

03
The surrounding work

Removal, supporting-frame repairs, sealing, trim restoration, access and inspection coordination. See why impact-window installation details matter.

04
The handover

Product and workmanship warranty terms, care instructions and final project records.

Discuss a single-hung option

For whole-home planning, return to our South Florida impact-window service. Use our impact-window buying checklist when comparing proposals.

Find your location

Impact-window planning for your South Florida location

Read your dedicated window guide, then discuss the actual address and proposed work with USAHI. Local requirements are part of planning the project.

A closer look

Single hung window questions
for South Florida homes.

These are the practical details to settle before the window goes on the order.

What is the difference between single hung and double hung?

A single-hung window has one moving lower sash and a fixed upper sash. A double-hung window has two operable sashes. Tilt-in cleaning, opening limits and hardware depend on the model; do not assume those features from the style name.

Does a single hung open the full window area?

No. The upper sash remains fixed, and the lower sash moves within the frame. Use the actual clear-opening dimensions when comparing ventilation or checking an escape-opening requirement.

Can I get both impact protection and Low-E glass?

They can be combined in an available approved configuration. Confirm the glass package for the exact model and size, then compare its energy ratings. An impact label alone does not establish Low-E glass or a particular energy performance. Compare Low-E, tint and other impact-window glass options.

Which approval should I ask to see?

Ask for the current approval covering the exact product, size, glass and installation. Confirm impact classification, required pressures and HVHZ suitability where applicable using the official Florida approval search.

Does replacing the window fix a sticking sash?

A correctly fitted replacement provides a new operating assembly, but the surrounding opening still needs inspection. Ask whether the difficulty comes from hardware, alignment, frame damage or the wall so the work addresses the cause.