Our Services
Residential Window & Door Replacement
Chicago's residential building stock presents a unique set of challenges that most window replacement guides don't address. The city's iconic two-flats, three-flats, and courtyard buildings were constructed primarily between 1880 and 1940 using masonry techniques and rough opening dimensions that differ significantly from modern residential construction. A standard box-store replacement window often doesn't fit without extensive modification — and a poor fit creates air infiltration, water intrusion, and frame rot that can cost far more than the original installation to repair.
Our residential replacement process starts with a precise field measurement of every rough opening, including an assessment of the existing frame, sill, and flashing condition. In Chicago's climate, water management is the single most important factor in window longevity. We inspect for signs of past moisture intrusion, evaluate the drainage plane, and address any deficiencies before a new unit goes in. This upfront diligence is why our installations hold up through decades of freeze-thaw cycles rather than failing within five years.
For homeowners focused on energy performance, Chicago's climate zone (Zone 5) requires windows with a U-factor of 0.30 or lower to comply with the Illinois Energy Conservation Code. Modern double- and triple-pane units with low-e coatings and argon or krypton gas fills exceed this threshold while dramatically reducing condensation, cold-draft discomfort near windows, and HVAC load. Many of our clients report measurable reductions in utility costs within the first heating season after replacement.
We supply and install the full range of residential window styles — double-hung, casement, awning, bay and bow, picture, slider, and garden windows — as well as entry doors, patio doors, and storm doors. For homes in historic districts or with landmark status, we work with products that satisfy Chicago's Department of Planning and Development guidelines, preserving period-appropriate aesthetics while delivering modern performance. Every residential installation is performed by our own trained crews, never subcontracted, and backed by both manufacturer and workmanship warranties.
Commercial Window & Door Services
Commercial window and door replacement in Chicago operates under a completely different set of constraints than residential work. Building permits, union labor requirements, tenant coordination, loading dock access, and high-rise safety protocols all factor into project planning before a single frame is removed. Our commercial team has navigated these requirements on buildings throughout the Loop, River North, Streeterville, the West Loop, and across Chicago's commercial corridors — which means we anticipate complications rather than encountering them mid-project.
For mid-rise and high-rise properties, we work with commercial-grade aluminum window and curtain wall systems engineered to meet Chicago's high-wind load requirements. Buildings along Lake Shore Drive and the lakefront face wind pressures that standard commercial products are not rated for — a critical specification point that is frequently overlooked by contractors who don't specialize in this work. We specify products to the correct AAMA performance class for each project's wind zone, floor height, and exposure category, and we can provide documentation to satisfy city inspectors and building engineers.
Condominium associations and homeowner associations represent a significant portion of our commercial work. Large-scale unit-owner window replacement programs require a level of project management sophistication that most window contractors don't offer: coordinating access across dozens or hundreds of units, managing owner selections within approved specification parameters, maintaining consistent installation quality across multiple crews, and producing the documentation that association boards and property managers require. We have developed systems specifically for this work, and we have a track record of completing association programs on time and within budget.
For retail and hospitality clients — storefronts, restaurants, hotels, and entertainment venues — we handle the full range of commercial glazing work: aluminum storefront systems, automatic and manual entry doors, revolving door service and replacement, fire-rated door assemblies, and ADA-compliant entry configurations. We understand that downtime is revenue, and we schedule installation work to minimize disruption to your business operations. Submit your RFP to our commercial estimating team and we will respond with a detailed scope and budget within 48 hours.
