Window Balance 26 5 EW CMC 10

Quick Learner from Thornton CO 80602

Jun 14, 2016 5:50 pm

26 5 EW CMC 10 is printed on the channel balance, what is the replacement part number and is there a better quality replacement channel rebalance that the original? the length is 27" and 1/2" in width. I have 18 windows that will need 2 each as all of the windows need new ones as the original starting breaking after 3 years. Now almost window needs too be fixed.

User submitted a photo of a window balance.

4 Replies

Tom from SWISCO

Jun 16, 2016 1:09 pm

Thanks for posting. Sounds like you have a 27" block & tackle balance with a stamp option of 2650. I'm afraid that's all I can tell based on your information, though. Now you just need to pick out the top and bottom fittings in order to determine the Series.

I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.

Quick Learner from Thornton CO 80602

Jun 17, 2016 12:51 pm

From the descriptions at your website don't know which of the balances is correct. Most of them look the same, and not sure of the stamp options as the balances that are in my windows didn't last very long. Do I put in stronger ones or just the same? Don't want to keep replacing these every 5 years.

User submitted photos of a window balance.

Tom from SWISCO

Jun 21, 2016 9:10 am

Thank you. Based on your pictures, I think our S385-27 looks like it could match. I would just make sure that the nylon ends are the same size as those that come with it (19-005 and 15-004).

You don't want to put in a stronger balance than what you need. If the balance is too strong, it could actually prevent your window from closing. You also don't want the spring to be too weak, or else you won't be able to keep the window open. You should only choose the option that's best for your sash weight.

Keep in mind that the average lifespan for a balance is around 5 to 10 years, depending on how often the window is used.