Caldwell Manufacturing has produced spiral balances continuously for more than 60 years. All the while we’ve continued to refine its design. [read more...]

The Constant Force Spring—also called coil spring balances--is the fastest growing balance platform in the window industry. Its compact, modular design provides significant manufacturing advantages.  [read more...]

Caldwell’s block and tackle balances are a popular and growing platform. Long the standard for wood window designers, block and tackle balances are now incorporated into vinyl and composite material windows. [read more...]