By Gene and Katie Hamilton
An alternative to replacing a drafty old double-hung window is to rebuild the window with a jamb liner kit made of aluminum replacement channels. The channels are a substitute for the worn wooden slots where the window sash slides up and down. When these get old and worn, they let cold air inside in the winter and cooled air escape in the summer.
Channels are sold in kits of various lengths at home centers, lumberyards and glass retailers. If you do it yourself, some carpentry experience is useful but not required. The project involves several steps: First you remove the inner and outer window sashes and the parting bead, which are pieces of wood trim that hold the sashes in place. Then you scrape the window frame so it's smooth, remove the weight cords and fill the cavity with scrap pieces of insulation. If the window needs painting, do it at this point while the frame is easy to work on. Then cut the channels to size and assemble the two sashes in them. The most difficult part of the job is holding the channels with the sashes between them while you position the unit in the frame and nail the channels into position. A helper will make this job easier. Then apply weatherstripping to the top, center and bottom of the windows.
A carpenter will charge $248 to rebuild a 3- by 5-foot window with a jamb liner kit. If you do it yourself, you'll pay $75 for the kit and pocket a 77 percent saving.
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Here's information about a Sash Replacement Kit
from The Spruce.
That sums it up. Knowing the average cost to rebuild a double-hung window lets you compare doing it yourself with what you can expect to pay a contractor. To customize the cost to where you live add your ZIP Code in the cost box.
Improvement and Repair Cost Updated 2019