Impact or Non-Impact

Double Hung Windows
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Double Hung Window with Flange Frame

Double Hung Box Frame (No Flange or Fin)

Double Hung with Fin and Flange Frame

Double Hung Fin Only Frame

All Need to Know about

Double Hung Windows

Looking to shop double hung windows?  They’re a perfect example of a classic design combined with the utility and curb-appeal. Despite a number of other window designs, materials, and building techniques entering the market lately, The double hung window design remains a highly prevalent choice among homeowners for its functionality. This is a result of several outstanding features and benefits that come with this window style. Unlike single hung windows, double hung windows are created to open on the top and bottom sash and allow a nice flow of air. With basic features, an affordable double hung window runs about $160 and up, sometimes even cheaper if quality isn’t of concern. Window installing companies say that to buy double hung windows, is to treat your home to a deluxe makeover. For features like security, energy efficiency, color or impact resistance, the price will increase, however the double hung window is still worth its weight in gold. It’s important to consider whether to buy impact or non-impact and vinyl or aluminum frames.  A double hung window is only as good as the materials you choose.

Benefits & Features of

Double Hung Windows

Most homeowners prefer the functionality of double hung windows when purchasing new or replacement windows. This is due to the ventilation double hung windows provide.  Perhaps the benefit of buying a double hung window Even a single hung window is more afforable, a double hung window can do the functions of a single hung window and more. The double hung windows are equipped to be secure. This is because there are fewer failure points in their locking system. The window, as well as all the various window types available at Palm City Windows, have options for energy efficiency. With two operational sashes, there is more air infiltration than the single hung window with only one operational sash. The double hung window is known to meet the sizing demands of a smaller room with ease. These windows are versatile and there are many available combinations when it comes to style, trim, shape and finishing options. 

open double hung window closed double hung window

Hover over the image above to view the functionality of a double hung window.

Upgrading to the best

Impact Double Hung Windows

Impact double hung windows are built to withstand harsh environmental conditions. These may include high strong winds, hurricanes or the blazing high temperatures in South Florida. Many companies are familiar with homeowners’ need for security and thus the production of impact double hung windows has provided incredible security features. An ideal impact double hung window should have the following qualities but not limited to; thick durable frames, high sill which prevents water intrusion, and PVB or SGP inner layers. It is key to remember that impact does not mean that the window can’t break, it just means that unlike non-impact windows that shatter glass all over, a double hung impact window contains the glass inside of a laminate where little to no glass can shatter to the surrounding area causing injury. Double hung impact windows in South Florida are ideal because when a nasty storm (maybe a tropical storm or depression) is on its way, you no longer need to stress about shutters. When considering replacement windows, impact double hung windows are a great investment for many years to come.

Affordability & Customization

Non-Impact Double Hung Windows

Non-impact double hung windows share some of the many options of the impact double hung windows. They are engineered to meet the building code requirements where impact double hung windows are not needed, however in impact areas, shutters are often required to meet code. Non-impact double hung windows offer options for full protection from ultraviolet light, are low maintenance and have annealed glass coverings. The appearance and the affordability often attract homeowners to non-impact double hung windows. They are engineered to meet or exceed demanding energy-saving requirements. The non-impact double hung windows are also crafted with non-corrosive hardware like the impact double hung windows. While non-impact double hung windows are affordable, it is important to note that if you do not have shutters, the cost of replacement windows and shutters can often times be more expensive then the impact double hung windows.  For more information before making your decision, call our professionals at 772-781-2383.

More About Vinyl or Aluminum Frames

Vinyl Double Hung Windows

As the name suggests, vinyl double hung windows are made of what is commonly known as vinyl or uPVC material. Vinyl double hung windows offer good durability and stand up to the test of time. The maintenance of this type of window is very low and their cost in the market is averagely lower than that of aluminum double hung windows. The vinyl frames have an approximate lifespan of about 50 years before they need be replaced. Vinyl double hung windows also offer good thermal resistance and the frames often carry a lifetime warranty.  Ask to read, review and be sure to understand how your warranty works when purchasing your new windows.

Aluminum Double Hung Windows

Modern aluminum double hung window frames are generally separated by a thermal break which is a glass fiber that is reinforced with polyamide. This thermal insulation ensemble significantly increases thermal resistance while conserving structural strength. The durability of an aluminum double hung window is above average with very low maintenance and upfront costs. In addition, an aluminum impact double hung window is said to have the most resilience against the storms of South Florida. The drawback to purchasing aluminum over vinyl framed windows is that the aluminum double hung window offers a 3-year limited warranty versus the lifetime limited warranty of the vinyl frames. It is highly recommended that homeowners read, review and understand the warranty on all the windows we offer at GBW Windows.

Grid Patterns Available for Double Hung Windows

Standard Grids

Flat Grid

3/4" Contour


Classic SDL


Single Brittney Open Grids

Flat Grid

3/4" Contour


Classic SDL


Single Brittney Closed Grids

Flat Grid

3/4" Contour


Classic SDL


Double Brittney Open Grids

Flat Grid

3/4" Contour


Classic SDL


Double Brittney Closed Grids

Flat Grid

3/4" Contour


Classic SDL


For Double Hung Windows

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Optional Features Available

There are many features available to customize a double hung window.  Customize the glass tinting, configurations and shapes, contouring, sizes, frame colors for both inside and outside, glass finishes, and glass colors.

Supply & Installation Of Windows and Doors

Options & Service Areas

Palm City Windows provides supply and installation of replacement windows and doors. The following slide shows will give you an idea of how the product will look. Your Palm City Windows sales associate will be happy to show you the some literature at your free in-home estimate. We are proud to service Palm City, Stuart, Hobe Sound, Jensen Beach, Hutchinson Island, Sewall’s Point, Port Salerno, Jupiter, Tequesta, Port Saint Lucie, and Saint Lucie West. If you are within a 25 mile radius of Palm City, Call today for a free estimate at:



Frame Color Options

Double Hung with White Frame

Double Hung with Bonze & White Frame

Double Hung with Adobe Frame

Double Hung with Bronze Frame

Glass Options

Clear Glass

Obscure Glass

Clear & Rain Glass

Light Gray Glass

Light Gray Obscure Glass

Sun Glass

Sun Obscure Glass

Bronze Glass

Bronze Obscure Glass

Azurelite Blue Glass

Azurelite Blue Obscure Glass

FL Low-e 240 Glass

FL Low-e 240 Obscure Glass

Low-e 270 Glass

Low-e 270 Obscure Glass

FL Low-e 340 Glass

FL Low-e 340 Obscure Glass

Low-e 366 Glass

Low-e 366 Obscure Glass

Low-e 366 with Neat Glass

FL Low-e 366 Neat & Obscure Glass

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