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Older with weights - sash cord, sash chains, window weights.

Newer - balances - lot of types, the most common ones I see are the ones with the spring, mini block and tackle and thin nylon string.

The damn springs break all the time. You can find one or two that have broken during an inspection and everything else will be fine and then a couple of weeks later one can break without any warning.

I got a few calls about them back in the 90's but smartened up. Rather than get that phone call from the client about, "Hey, you missed a broken spring on one of my windows and now it won't open," I now give 'em a 1-minute mini lesson on how to remove the sash and replace a broken balance. Haven't had one of those calls in about 9 years.

ONE TEAM - ONE FIGHT!!!

Mike

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John,

They are Anderson Perma-Shield windows. The top jamb cover can be removed to access the sash balancers and the sashes can be removed by taking out the lower jamb cover on the left side. Check out the Anderson web site for needed repair parts.

Ezra Malernee

Canton, Ohio

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John, that's one of the more common windows here on the East Coast. The style of the sash frame hasn't changed on 40 years. The Andersen logo and date are etched into the glass at the corner. On older double hungs, the manufacture date can be stamped into the side jamb. After a while, you'll be able to ID that window from the street.

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The technology of window glass has come a long way since Andersen started to make insulated glass windows. Andersen now has replacement windows that fit into their old window frames. Window balance replacement kits are also readily avaiable. It is a nice option because you don't lose any daylight around the perimeter like many of the framed replacement units.

I call them sash cords and sash weights.

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Ezra is mostly right. The vinyl clad casement series was called permashield, while the double hung series was called narrowline, sometime in the 90's when Andersen introduced the tilt double hung they started using model number dsignations, 200 for what you have and 400 for the tilt series.

Watch the date codes, sometimes they vary wildly. I did a replacement job on a $500K house in a ski resort where there where two odd combination windows each made up of a picture, a casement and two awnings that varied in age seven years from newest to oldest, and the newest unit was four years older than the building. These weren't repairs or upgrades, the units were built from stuff laying around in someone's warehouse. Around here, up until around 2003, Andersen was so widely distributed it seemed like you could buy them at any corner gas station.

Tom

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  • 1 month later...

I would appreciate it if someone could give me some details on how to replace the sash balancers on a Anderson Perma-shield Narrowline double hung window. The bay window is over 30 years old, several cords have broken, and the rest wind up in jerks and starts. I see where the lower left jamb appears removable, but how do you accomplish with the sashes down, and the tension on the cords? Thanks

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