certainteed coil balance replacement ?

Quick Learner from san francisco

Feb 1, 2014 3:03 pm

Hi, I need to replace my coil balance springs ... I'm certain I have an old style certainteed (without the nub) ...
My springs however, have a 10 J stamped on them ... they look like 171 springs, they are bronze colored, not silver ...

I can't tell for sure though ...

i weighed my window and it was 17 lbs ...

A customer submitted image of their coil balances.

4 Replies

Paul from SWISCO

Feb 3, 2014 12:44 pm

Thanks for posting. Don't mind the color, that's not an important factor for this kind of spring. As for the spring, it looks like our Series 170 coil. For a sash weight of 17 pounds, I recommend our S170-409. See if you agree.

Quick Learner

Feb 3, 2014 3:04 pm

Thanks a lot for taking a look ... the S170-409 looks like the best way to go ...

I'll do the experiment !

Quick Learner from san francisco

Feb 12, 2014 2:59 pm

i just put the new springs in ... MISSION ACCOMPLISHED !

the trickiest pary was getting the pieces back in the window frame ...

it had to be pried open but nothing broke !