Double-hung windows are the most classic of styles. The windows feature two sashes framing the panes of glass. The sashes are set into tracks, and some have a handle or an integrated lift to assist with opening. When you want to open the windows, you slide the sash along the tracks. With double-hung windows, both the top and bottom sash open.

When you install replacement windows or even choose windows for a new-build, you’re faced with a myriad of style choices. Below are some reasons to choose classic double-hung windows.

Buying windows is a big commitment, and many people only do it once in their time as a homeowner. Asking yourself the right questions can help you make smart decisions as you go through the process of selecting a window and picking a contractor. Here’s what you need to know. 

Stairwells are dark and somewhat cramped places by design, so many designers recommend adding windows to bring natural light into the space. Even when stairs are part of a room with an open layout, properly positioned windows make them more attractive and dramatic.

Wondering what to do about uncomfortable, drafty windows? Looking for an eco-friendly home improvement ideas? Improved window insulation can reduce vulnerabilities in your building envelope, meaning that less of your valuable heat escapes and your windows are more comfortable to sit by.

Whether you are building a new home or remodeling, you will have to decide what kind of windows to install. This is a big decision, as not only do you have to consider the style of window but also the material you want for your window frames.

No matter what style or material you choose, however, you should consider energy-efficient windows.

Replacement windows can add to the energy efficiency of your home and ensure that your interior living spaces receive adequate light. Most homeowners focus in on the type of glass that will be included in their replacement windows while failing to give enough attention to the selection of the right window frames.

The frames that surround each of the windows in your home serve several important purposes. Window frames offer structure that creates an aesthetic appearance. Since modern windows can be much heavier than their predecessors, frames offer the support needed to keep replacement windows anchored. Frames also serve as a connection point between your home and your replacement windows.

When your windows approach the 20-year mark, you should start keeping a closer eye on them for signs that they need replacement. That is not to say your windows won’t last longer than this — many do. However, inspecting them every year or so ensures that signs of wear and damage do not go unnoticed. The following are the five primary questions you should answer when inspecting an aging window.

1. How Many Panes of Glass Does the Window Have?

Look closely at the window, and assess whether each sash has one or two panes of glass. In places like Wisconsin where winters are cold, double-pane windows are now considered standard. However, some older homes still have single-pane windows.

Single-pane windows are much less energy-efficient than double-pane windows. Heat travels very easily through a single pane of glass. Even if your single-pane windows are in decent shape, you may want to have them replaced with double-pane windows. Doing so could save you hundreds of dollars per year on energy.

2. Can You See Condensation Between the Glass?

A little moisture on the inside of a window is not abnormal, especially after a period of high humidity. But if you go to wipe the moisture away and realize it is trapped inside your double-pane glass, you have a problem. Condensation can only form between the glass once a double-pane window’s seals break and the window starts leaking. A leaky window is an inefficient window.

If the window is otherwise in good shape, you may be able to have the leaky glass pane replaced. However, condensation and leaks are usually due to deteriorating window sash material, which makes replacing the window the smarter choice.

3. Can You See Mold or Rot on the Sash or Frame?

With older wooden windows, rotting sashes and frames are the primary concern. Look closely at each sash and frame, making note of any areas where the wood appears chipped, soft, or discolored.

Even if the window is still stable in the moldy or rotten frame, mold presents a health hazard. Plus, mold and rot indicate that moisture is entering through the windows. Fail to replace such windows, and you could end up with water damage to the floor and walls before long.

4. Does the Window Pass the Incense Test?

Air leaks can occur without causing condensation buildup and without distinct mold or rot. The incense test is an easy way to assess whether a window is leaking.

Start by closing all doors and windows in your home. Also, turn off the heat and any fans to ensure there is as little air movement inside the home as possible. Light a stick of incense, and slowly pass it along the borders of your window glass. If the streak of smoke coming from the incense waivers, you have a leak.

5. Does the Window Open, Close, and Lock Easily?

Sometimes a window may look fine, but when you try to operate it, you realize that it does not open, close, or lock properly. If you cannot get a window to close properly, not only will it leak, but it will also present a security risk.

If your windows are newer or are in otherwise good condition, they may just need a few adjustments, lubrication, or a simple repair to get them functioning well again. However, with older windows, poor operation is often a sign of deterioration or warping of the sash material.

If the results of your window inspection suggest your windows are on their last legs, contact Pella. We offer wood, fiberglass, and vinyl windows that will save you energy and look great in your home.

Windows do more than let light into your room, though that’s certainly an important function. The shape and style of the windows also affects the appearance of both the façade and your interior rooms. You may be well-acquainted with standard styles, such as double-hung and casement windows. However, other window configurations can help set your house apart.