Window Replacement and Installation

Whether you replace with new windows vs replacement windows depends on the state of your current window framing and personal preference.

If your current window frames are compromised, all-new windows (ie full-frame replacement windows) are the way to go. Your installer will tear out any old and rotten framing and restore your window opening to like-new condition.

You may also prefer new windows over replacement (aka insert) windows if you are concerned about maintaining maximum viewing area. Insert windows almost always have to be trimmed to fit snugly and securely into existing framing, which shifts naturally over time. This often means losing an inch or so of viewing area, which can be noticeable with the more popular double-hung window models.

However, if the framing is in good shape and you aren't worried about losing an inch of glass, insert windows would probably make a lot more sense to you from a cost perspective. The installation process is also far less disruptive.

A good replacement window can be expected to last 20-40 years, depending on quality of materials, installation, and the window's positioning to the sun. Exposure to direct sunlight creates more stress and work for the window's insulating glass layers — therefore, a north-facing window will almost always outlast a south or west-facing window.

If you're experiencing high energy bills, a lot of draftiness, or a lot of condensation, you may want to consider at least a partial window replacement — whether that's replacing an insulating glass unit or sash (in the event of window seal failure, indicated by haze or fog), the sashes along with covers and hardware (insert window replacement), or absolutely everything (full frame replacement). Full frame replacement can be a pricey proposition however, so it's best to know when it's absolutely necessary! 

It really depends on your needs and budget. Replacement windows will enhance both your home's curb appeal and its energy efficiency, so if you can afford to upgrade all of your existing windows with the latest and greatest, it will benefit you over time (especially in resale value). However, that's not often necessary, as replacing windows room-by-room, floor-by-floor, or just in the front, back, or sides can still make a big difference. If aesthetics are what you're after, just one set of bay or bow windows can totally transform the look of your home. 

Look for the ENERGY Star label, which will disclose important information about how well the window insulates, how much solar radiation and visible light can pass through the glass, and how much air leakage it allows. Warmer climates require a window that screens out more solar heat, while northerners may desire a window that permits a little more solar heat gain.

That depends on the enormity of the task and your level of experience and confidence. Some jobs, like a pocket window replacement on the ground floor, will be friendlier to the novice than others. For the added assurance of experience, hire a seasoned independent contractor. For the greatest peace of mind, hire a company-certified installer, whose work will be insured under warranty. 

Ask yourself whether you're satisfied with the view, whether you need it to open, and what you need it to do. One reason people replace windows is lack of operability or function. A sliding or gliding window placed over a countertop can be much easier to operate than a double-hung window; awning and casement windows can often be opened with a simple nudge or push!