Window replacement basics for curb appeal and energy savings

If the eyes are the windows of the soul, then windows are the eyes of your home. Windows perform many functions: they let you see the world, they protect you from the elements, and they provide ventilation. Properly designed, constructed, and installed, they also help reduce heating and cooling costs. But window replacement can be an expensive proposition, not to mention a confusing one.

Window styles

Windows are made in many styles to fit different architecture styles. But you can replace one style with another if it suits your lifestyle better. For instance you can replace the slider in your kitchen with a garden window, or a double-hung bedroom window with a casement or awning window. As long as the dimensions are the same, get as creative as you want. Each style of window has its pros and cons, but the bottom line is what works best for you. These are some of the most popular styles:

1. Double-hung: the most common window style
2. Casement: opens from the side with a crank or lever
3. Awning: similar to casement, but opens from the top
4. Slider: one fixed pane, one sliding pane
5. Picture: fixed window that does not open
6. Bay window: protrudes from the outer wall
7. Garden: has shelves for display of plants or knick-knacks

Window materials

If you have an older home, you can achieve dramatic savings in your heating and cooling costs by installing windows made with modern materials. There are only two major components to a window: the glass and the frame. Most frames can be made from one of these materials:

1. Wood
2. Aluminum
3. Vinyl
4. Composite

Wood is the oldest window frame material and provides good insulation, but requires maintenance. Aluminum, vinyl, and composite materials are virtually maintenance-free. Vinyl and composite frames provide excellent thermal insulation. Older aluminum frames did not insulate well, but new honeycomb manufacturing techniques have improved insulation dramatically. As for glass, modern coatings and multi-pane design provide excellent insulation.

Shop carefully

With more than 100 window manufacturers and a dizzying array of styles, materials, colors, and other variables, choosing the right windows can be a daunting task. The five major things to consider are: energy efficiency, aesthetics, ease of operation, maintenance requirements, and noise/dust reduction. You can rely on the National Fenestration Rating Council (NFRC) ratings for information on a window's performance. The R-value measures heat loss through a window, while the U-Value rates performance in preventing air leakage. You want a high R-Value and a low U-value. Also, look for the Energy Star label, a government certification that may qualify you for tax rebates.

Window replacement cost

The cost of replacing your windows will vary according to size, material, style, and manufacturer. As a general rule of thumb, good quality standard size double-hung windows start at around $200; casement, awning, and sliding windows at $300; and bay windows at $1,000. Installation labor is additional, so get at least three bids from licensed, factory-authorized contractors.

Window installation

If you have reasonably good carpentry skills, window replacement may be a DIY project. To ensure the best performance from your windows, however, it is best to have a licensed professional do your window installation. Choose a contractor authorized to install the brand you purchase so your manufacturer's warranty will be honored.

Deciding to replace your windows does not need to be stressful or confusing. Armed with this basic knowledge of styles, materials, energy ratings and costs, you can confidently shop for new windows--knowing they can provide curb appeal, comfort and energy savings for years to come.