Window companies serving Chicago, IL
Installers, dealers and manufacturers that serve Chicago, IL are listed here as company profiles on GlassBase, an independent platform that lists companies and calculates window performance but does not sell or install windows. Each profile shows an about section, stats, certifications and contact details, and quote requests are sent to the company through its profile.
Two project-type filters are especially relevant on this page. Replacement window companies handle new units in existing openings. Historic window companies cover restoration, period-appropriate replacement and preservation projects, which is the filter to use when the building is older and the original windows need to be kept or matched. Companies serving Milwaukee are listed on a separate page.
Energy savings for Chicago ZIP codes
The window energy efficiency calculator estimates whole-window U-factor, SHGC and heating and cooling savings for a ZIP code, using NREL TMY3 climate data for that location. The result comes as a PDF report. Because the estimate covers both heating and cooling, it reflects the whole year at your address, which helps when choosing glass and frame options before you ask for quotes.