India, Sept. 5 -- House construction has shifted noticeably over the past few years. Builders and homeowners alike are paying closer attention to energy efficiency, noise control, and long term durability rather than just aesthetics. This shift is showing up in almost every part of a new build, but nowhere is it more obvious than in the windows going into these homes.

A decade ago, window choice was often an afterthought, something decided late in the build once the bigger structural decisions were locked in. Today it is one of the first conversations architects and builders have with clients. That change is largely driven by rising energy costs and a growing awareness of how much heat and sound can escape through a poorly insulated wind...