Balancers for non tilt windows

Thanks for your photos. Based on what I see here, you have either our S351-22 or S390-22, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

Note that since the shoe on your pictured balance is broken, you need to get an undamaged version to use as a reference. You won't be able to determine the better match any other way. Measuring that shoe is a vital step and cannot be skipped.

Lastly, your old stamp of "21D" should match our more modern "2140." You can always weigh your sash to verify.

Comparison of the S351 and S390 balance shoes.

Thanks, Robert! Sounds like that would be our S390-22 channel balance with a 2140 stamp option. 

All orders can be placed directly on our site at your convenience. 

The 21C stamp typically corresponds to our 2130 option. However, the given sash weight of 15.2 pounds would be too heavy for a 2130.

Two balances with a 2130 stamp carry 12 through 15 pounds. Meanwhile, two balances with a 2140 stamp carry 15 through 23 pounds. This balance is admittedly right on the cusp but since it's a little over 15 pounds I would personally opt for the 2140.

It's up to you. If the 21C has been working well all these years without issue, then you may not want to change it. 

That sounds like the smart plan. My personal rule of thumb is to trust in the weight of the sash; the original installers may have made a mistake when they put in the original balances, but arithmetic never lies.

Happy holidays to you, as well! I'm happy to answer any other questions you may have.

Hello! I'm sorry to hear you're having trouble.

I don't see anything particularly unusual about the location of the hook hole. It does take some elbow grease to push the balances down, but of course you don't want to force it if you feel like it's close to snapping. One thought is to check another window in the house to verify which of those two holes you ought to use; maybe using the lower of the two will make it a little easier.

As for the top sash guide, I'm very confident that we have a match for this. It's just a little hard to be sure without seeing its front face. For now, my tentative suggestion is the 18-008. Check its design and measurements to see if this is a good match.

Detail of 18-008

Alternate view of 18-008

I see what you mean about those holes. the hole in our 18-008 is oblong, but my concern is that it might come up short.

If so, you could consider the 18-008H. This is the same exact guide but the hole is oriented toward the top of the space. This would give you enough clearance to drill a new hole in the necessary spot, which may not be possible with the 18-008.

Dimenisons for 18-008H

Sounds like a plan, Robert! Your analysis is dead on, and I think your fixes will definitely get these windows operational again.

As for this "J" clip, I have seen it before. It's unfortunately not something that we sell, though. I've tried very hard to track these down in the past but it's just never been in the cards. I wish we could, these are far from uncommon, but at this point in time we just don't have a solution for replacing it. I'm sorry for the inconvenience.

Awesome, thanks so much for the order! It means a lot. You know where to find us if you had any other questions.

I hope you have a happy holidays, as well!