• FENESTRATION HARDWARE SPECIALISTS
  • More than 130 Years of Excellence
The Legacy

Company History

Caldwell is your single source for specialist window and door hardware. We manufacture a comprehensive range of products for domestic, commercial and social projects. This includes spiral balances, constant force spring, block and tackle, hybrid balances, and high performance hardware for casement and pivot window styles.

All products are designed to be safe, secure, reliable, durable, and add aesthetic value, and can be made for all window materials and systems.

Industry Innovations

Founded in 1888 by Allen Boucher and William Caldwell, Caldwell Hardware supplied clock spring counterbalances for window construction throughout Northeast America.

In 1948 we developed the first spiral balance – Spirex – catapulting Caldwell to the top of the window hardware market.

The 1950s saw the introduction of breakthrough new products, weatherstrip balances Spiraflex and Rib-Tite.

During the late 70s Caldwell developed Trim-Tilt for wood and Aluma-Tilt for aluminium to allow hung windows to tilt to the inside for safe and easy cleaning.

In 1991 we launched ULTRA-LIFT balances, our first hybrid balance designed to balance large and heavy windows.

Expansion Into The UK Market

In 1973 Caldwell embarked on a joint venture with an English window manufacturer to supply products to the UK and European markets. Caldwell eventually bought out the partners and established Caldwell Hardware United Kingdom.

2014 saw the acquisition of leading international friction hinge manufacturer Cotswold Architectural Products. This was a strategic move for both Caldwell and Cotswold by bringing together two of the most respected names in the window and door hardware markets.