Sash window coil balance

Quick Learner from Scotland

Hi, I need to replace this part in my sash window, the coil has broken down and window won't stay open. Also I don't see a cutout on my window to remove and replace balance spring so how do I do that? Thank you.

The shoe is stamped 550 PAT#5,704,165.

Coil spring is 1/2" wide.

The coil close to the shoe is stamped with number 6 or it could be 9.

Thank you.

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8 Replies
Casey
Casey from SWISCO
SWISCO
Expert

Hello,

Unforutnately, we do not carry an exact replacement for your coil balance pivot shoe but our 17/32" thick 15-199 Pivot Shoe should work well as a replacement. You'll need to compare the dimensions below to yours to confirm that this would be a good fit for your window. 

This pivot shoe is compatible with the (1/2") Series 160. I'd recommend weighing your window sash to confirm the strength options needed for your replacements. See the parts and videos related on this page in the meantime. Thank you. 

Quick Learner from Scotland
Hello,
my window weights 13kg. Do I need to weight both windows ?
Thank you for all your help.
Casey
Casey from SWISCO
SWISCO
Expert

You only need to weigh the sash supported by the balances you are replacing. 13kg is equivalent to about 28-1/2 pounds. For that sash weight, I'd recommend using two S160-07 coil on each side. Take a look and let us know if you need anything else. 

Quick Learner from Scotland
Hi, my top sash is weighing 12kg. Thank you.
Casey
Casey from SWISCO
SWISCO
Expert

For a 26-1/2 pound sash, you would need one S160-06 and S160-07 coil on each side.

Quick Learner from Scotland
Hello, thank you for all your help. Can I buy these parts in UK? Thank you.
Casey
Casey from SWISCO
SWISCO
Expert

We offer worldwide shipping, including the UK! You'll just need to input your postal code and you'll be given multiple shipping options to choose from at checkout. 

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