Tips for Buying Commercial Windows

Written by: Amy Whittle

Commercial windows can be replaced to update the energy efficiency or appearance of a business. For some businesses, tax credits can largely offset the cost of upgrading to high U-factor windows.

Types of commercial windows

Commercial windows have a wide variety of options that far exceed those made for residences. For this reason, it's best to consult a windows installation professional before spending thousands of dollars. Here are some of the options you may find appealing before you shop.

• Insulated windows: Insulated windows have two or more parallel panes of glass with an air pocket in between. This air pocket acts as an insulator, helping to regulate temperatures. Some insulated windows may have three layers of glass or more; others have two layers of glass with a plastic film in the center to replace a third layer of glass. The insulating value of the window is measured by the U-factor, with a higher factor being the most desirable.
• Tinted windows: Tinting for commercial windows varies widely. The color can be barely perceptible or seriously inhibit the view from the window. Commercial colors for tints are usually gray, bronze, or blue- green. All of these colors blend well with different types of architectural facades.
• Reflective windows: A mirrored coating on a window can enhance privacy and improve insulation. Mirrored windows are created using a very thin metallic layer or metal oxide. Colors of the reflection can vary. In buildings with all glass facades, reflective windows are often used to conceal structural elements.
• Low-E coatings: Low-E window coatings are a great way to reduce the heat gain that many windows experience. Low-E coatings are nearly invisible to the naked eye.
• Laminated windows: Laminated commercial windows are incredibly strong and difficult to break. Formed by a layer of tough plastic sandwiched between two layers of glass, this is the choice for high-rise buildings to prevent accidents.

Installing windows

Before choosing any type of window, think about consulting an architect or other design professional. A significant change in the type of window can completely alter the appearance of your façade. It’s best to have a professional who can consider any design challenges with the new windows before they occur. A professional will also be able to anticipate any building code restrictions or construction permit requirements.

Installation should also be factored into the cost of a bow window. Expect to pay between $1,500 and $8,000 for the installation. The range will vary based on the size of the window as well as any work that has to be completed on the home before and after installation.

To get matched to multiple professional installers, complete our quick and easy request for commercial windows quotes form.

Additional resource: Center for Sustainable Building Research