Windows are often considered the most characteristic feature of a home. They help to define its architectural style. So, replacing windows requires some attention to detail, but is a job that you, the homeowner, can tackle. Replacing old single pane windows with newer double paned energy efficient windows will keep you warmer in the winter and cooler in the summer.

BEFORE Replacing windows from an Irvington Victorian built in 1881. The window to be replaced is 5’x5’, single hung, single pane with lead weight pulleys. This window was constantly drafty and was showing signs of wood deterioration.

AFTER Replacement windows are two single hung vinyl assembled at the factory to take up the 5’ span giving the homeowner ease of use, still keeping with the look of the era.

Care should be taken to replace your windows with a similar design and size. For example, if your home has double hung windows, you will want to replace them with windows with a similar look. Consult with the manufacturer on measurements needed, or have the manufacturer do the measuring. This is the most important step, if a window is off it will costly to buy a second window. Replacement windows come in a variety of colors, styles, and costs. Another benefit of this project is that the interior molding and trim will still stay in place because all the work is done from the exterior.

A minimum of two people are needed depending on the size of the window. Safety is always a consideration. Make sure that you have stable ladders, and all involved know what their job is before replacing the new window. Second-story and third-story windows should be replaced by a professional. If you have a two-story home you can save money doing the windows on the first story yourself. This how-to will work on all types of windows.

Old windows can be recycled through local salvage companies such as Rejuvenation House Parts or the Rebuilding Center. Before you begin, check with your utility company to learn about any energy credits or rebates you may be able to claim as a result of your project. For the novice, you can get additional instructions on window replacement from the company you purchased your windows.

Tools & Materials: Drill, utility knife, hammer, caulk gun, exterior caulk that is paintable, chisel, measuring tape, ladder, 3” screws, molding, nails.

Lead Paint Warning
Some older houses could have lead paint. If you have small children test for lead before starting this project. The LeadLine provides Oregon callers with information and referrals for local lead programs and services. The LeadLine can be reached at: 503-988-4000 or log on to www.leadline.org to learn more.

Skill Level One hammer: Novice Five hammers: Experienced

Step One Begin the window removal by taking off the wood trim surrounding the outside frame.	Step Two Cut the sash cord on both sides of the old window. The lead weights will drop down inside the wall. Remove the bottom window. Now remove the sash that separates the two windows. Remove the top window.
Step Three Remove the old top window sash from the frame. Cleanup all the dust and paint chips around the window frame inside and out, and on the ground. Older houses could have lead paint.	Step Four Jim checking height of old wood frame after old window was removed. Measure for new windows left to right first, and then top to bottom – all measurements are taken on the inside of the frame, as you see Jim doing here.
Step Five Old frame openings are not always square. A little chiseling is sometimes needed to get a proper fit for the new window.	Step Six Cut the exterior mounting/ nailing fins from the new vinyl window with a utility knife. These windows will be attached through the side frame, so nailing fin is not needed.
Step Seven Slide the new window into existing wood frame. After the window is in the opening have a person hold from inside while you check the fit.	Step Eight A tight fit. Sometimes a little help is needed. Use a wood block to tap in the frame, don’t hit it directly, you could damage the finish.
Step Nine Screw through the side rails of the vinyl window into the wood frame using long screws. Check with the manufacturer for placement of these screws. An angled sill spacer will be needed to take up the gap between the new window and sill. This spacer needs to be ordered separately. Most older homes with wood windows have an angled sill for water runoff.	Step Ten Caulk between vinyl window and old wood frame. Even though new windows are energy efficient, caulking is still needed inside and out for weather protection. Next you’ll need to add molding. Pick a style that matches the era of your home. Size matters, use a stock that is not thicker than a 1/2”and wide enough to cover the unpainted exposed wood.