Upper West Side Window Replacement
Project Overview
This project involved the replacement of multiple residential windows in a pre-war apartment on the Upper West Side in New York City. The existing units were drafty, difficult to operate, and no longer sealing correctly, contributing to heat loss and exterior noise intrusion. The scope focused on improving thermal performance, restoring smooth operation, and delivering a clean, finished interior appearance suitable for an occupied NYC apartment.
Analysis
Inspection confirmed failed seals, air infiltration at the perimeter, and inconsistent alignment of several window units. The existing frames showed wear consistent with age, including minor gaps and deterioration at contact points. NYC-specific constraints included limited staging space, tight interior work zones, and the need for controlled removal and debris handling to avoid disruption to neighboring units and common areas.
Process
- Site protection and preparation - Removal of existing window units and disposal handling - Opening inspection, cleaning, and fit adjustments - Installation, leveling, shimming, and anchoring of new units - Perimeter insulation and air-sealing - Interior trim finishing and caulking - Operational testing (locks, tilt, smooth opening/closing) - Final cleanup and walkthrough
Outcome
The completed replacement eliminated drafts, improved interior comfort, and reduced exterior noise. Window operation was restored with smooth opening/closing and secure locking. The finished installation provided a clean interior appearance, improved energy efficiency, and a tighter building envelope appropriate for NYC seasonal conditions.
Project Details
Materials Used
- Replacement window units (vinyl frame) - Double-pane insulated glass (low-E) - Low-expansion spray foam insulation - Exterior-grade silicone sealant - Backer rod for gap control - Interior trim materials (PVC/wood as applicable) - Fasteners and shims for leveling and anchoring
Methods & Techniques
- Protected interior finishes and floors prior to removal - Removed existing window units with controlled cuts to avoid damage to surrounding surfaces - Cleaned and prepped rough openings for proper seating and alignment - Dry-fit, leveled, and shimmed each new unit for square operation - Anchored units per best practice for stability and long-term performance - Insulated perimeter gaps with low-expansion foam to prevent bowing - Sealed exterior joints continuously to reduce water intrusion risk - Completed interior trim finishing for a clean, professional appearance
Key Highlights
- Residential window replacement - New York City, NY (Upper West Side) - Pre-war apartment constraints managed with minimal disruption - Improved insulation, reduced drafts, and better noise control - Clean finish with full operational testing and final walkthrough