Missing Sash Balances

Home Owner from USA
Hello,
I'm at a loss here. I have a Viking window that is completely missing its sash balances, so I'm not sure what to replace them with. I have a similar viking window, but the sash balances in that one are too short for the window that's missing its balances. You can see the measurements in the pics. Any ideas for what replacement balances to use?

Thanks,
Mike
Sash balances
7 Replies
Tom
Tom from SWISCO
SWISCO
Expert
Viking windows have been known to use our Series 395 channel balance in the bast, but there is no guarantee that these will work for you. One of the most important factors is the nylon caps on either end of the channel. The Series 395 balance comes with a 19-005 top and 15-001 bottom. Look at the other, shorter balances you mentioned and see if they have the 19-005 and 15-001, as well. If they do then I think this is the way to go.

That's the Series taken care of, but what about the size and spring strength? Well, this will take a little homework. I will need the height of the visible glass of the sash being supported, as well as the weight of that same sash. With that information, I can calculate the proper length and spring strength.
Quick Learner from OR
Hi Tom, sorry for the delay! Yes, I believe those are the right top and bottom pieces. I attached a few pictures for confirmation.

The visible glass is 30 1/16 wide by inches by 25 15/16 inches. The weight is 15 pounds.
Channel Balance
Paul
Paul from SWISCO
SWISCO
Expert
It is quite alright! The window balance we believe should be S395-27 with (2630) option for a 15 lbs. sash. You may also need top sash guides and if so, our 18-009 could be a good choice.
Quick Learner from Portland, Or
Rats! Out of stock.
Quick Learner from Portland
Okay, so I installed the balances, but when I went to put the sash back in, it slipped right by the balances and never engaged. Do I need a different bottom piece?
User submitted photos of a window balance.
Tom
Tom from SWISCO
SWISCO
Expert
Looks like your top sash guide is broken. See the video below for more information. You can also see our entire selection of top sash guides here.
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