Double Hung CertainTeed Tilt Window Coil Balance Replacement Parts Needed

Question

Following up on a recent conversation with a SWISCO service gentleman and sending more information on the coil balance replacement parts I am looking for to use on my CertainTeed double hung tilt window. Travel distance is 16" and window weight is 12 pounds. Only one coil balance is broken so unsure if it would be best to replace both just to have them match. Look forward to your guidance on what replacement parts I should order. Many thanks.

Bob · Accepted Answer

Hello there. See our 15-192 Certainteed Pivot Shoe, as well as the S170-406 6 pound coil spring. In general you only need to replace what is broken with these coil balance systems; however, you also want to make sure you're using the same amount of spring strength on both sides of the window. So for instance, if your window weighs 12 pounds, you want a S170-406 6 pound spring on each side of the sash, to equal 12 pounds of support overall. Also keep in mind that using an older spring with a new one on the other side of the sash can cause both to wear out faster, so it may behoove you to replace the coil balances on both sides. Let me know if you have further questions.