Window Spring Replacement : SWISCO.com

Home Owner from Tustin, ca

Jun 18, 2024 2:06 pm

Hi, the spring is about 27 inches long. Window sash weights about 22 pounds. The springs shows numbers 26 9 JW CMC 7.
Can you tell me what part to purchase as a replacement?

5 user uploaded images

4 Replies

Casey from SWISCO

Jun 20, 2024 2:44 pm

Hello,

We'd be happy to help but we'll need to see a clear photo of the connecting point between the spinr and pulley system inside the metal channel. That will help us confirm if our stock balances will work for your repair or if they would need to be custom-ordered. Thank you!

Home Owner from Tustin, ca

Jun 20, 2024 5:13 pm

Here are 3 more photos of the inside part of the metal. I hope this is sufficient. Thanks

3 user uploaded images

Casey from SWISCO

Jun 21, 2024 8:47 am

Thanks for getting back to us. With this combination of attachments, you could have either the S380-27 or S385-27 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment.

You'll also need 2640 strength options to support a sash between 19-26 lbs. Thank you and let us know if you have any other questions or concerns.

Comparison of the S380 and S385 balance shoes.