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Double Hung Replacement Windows

double hung windows

The name double hung refers to windows, the two halves of which move up or down within the frame. A double hung window has two sashes, (the part of the window that holds glass) an upper sash and a lower sash, positioned one over the other to allow venting from the top or bottom.

Double hung windows have always been common in older homes, but recently, they have become a popular choice as replacement windows and for new residential projects. The greatest advantage of the double hung window design is that they fit into any decorating scheme from historic to traditional to contemporary. Older homes often require custom window builds and installations and it’s important to have precise measurements to eliminate air and moisture leaks.

Another advantage is that because they slide up and down, up instead of opening out, double-hung windows don’t take up exterior space when open, making them ideal for high traffic areas like adjoining walkways, porches and patios. Therefore, the design itself is the main benefit from a space-saving standpoint.

Tilt-out upper and lower sashes are the best features of today’s double hung windows. Some models offer tilting upper sections only. This feature makes cleaning and inspecting weatherproofing strips and repairing caulking very simple and convenient. Some models are offered with completely removable sashes, which offer obvious advantages.

The choices of materials for double hung window materials include wood, vinyl, aluminum, and fiberglass. Aluminum is the least favored choice because it is not as energy efficient as other materials. Styles include multi-paned sashes, removable grids, transom or curved frames, and a range of colors. A typical warranty provides coverage for at least a decade. In colder climates, the energy efficiency rating is very important; windows are manufactured with double- or triple-panes to add insulation. Contact our local window contractors if you would like to learn more about casement windows and get free installation estimates.

The name “double hung” refers to a special window type, the two halves of which move up or down within the frame. A double hung window has two sashes, (the part of the window that holds glass): an upper sash and a lower sash, positioned one over the other to allow venting from the top or bottom. They are an affordable and durable window option for any homeowner in the market. Read on to learn more.


The cost of replacing windows or installing windows from scratch depends on the manufacturer, labor, and quality of the windows chosen. On average, expect to pay anywhere from $300 to $700 per window. To get an idea of labor costs in your area, contact a local window installer for specific pricing estimates.


They don’t take up any exterior space, making them ideal windows for walkways, porches and patios.

Many of today’s double hung styles make for easy cleaning, weatherproofing and caulking repair.

Double hung windows fit into any decorating scheme, from historic to traditional to contemporary.


The sliding sashes on some double hung windows are difficult to seal.

Double hung windows allow for air leakage and are not the most energy efficient window option.

Since they can only be opened halfway, airflow is more restricted.


Double hung windows are a very durable window option and require only minimal maintenance.


Most double hung windows only need to be cleaned a few times a year, unless you live in coastal, agricultural or industrial areas. Here are a few simple cleaning steps:

  1. Remove dirt and debris with a mild detergent and water solution. Wipe with a soft cloth.
  2. To get rid of heavy stains, remove debris with a soft, dry cloth, wipe with a cleaning solution (like mild soapy water and vinegar), and remove with a squeegee.

Common Questions and Answers

What is the difference between double hung and single hung windows?

Single hung windows, the norm for construction in the past, has a fixed top sash that doesn’t open and a lower sash that can only be opened vertically. Double hung windows have two sashes that operate for much better ventilation.

What type of window is better: double hung or casement?

Casement windows provide an unobstructed view, better air flow and a better seal against air leakage. Double hung windows, however, don’t take up exterior space to open and tend to be ch


The design of the double hung sash window can be traced back as far as the mid 1600s. Updates in glass and glazing technology have been at the forefront of design changes through the years.

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