Preserving the Soul of Brownstone & Landmark Architecture

Usually, yes. If your building is an individual NYC landmark or sits within a designated historic district, most exterior window work needs approval from the Landmarks Preservation Commission (LPC) before it can begin. We manage that process for you — documenting existing conditions, preparing specifications, filing for the Certificate of Appropriateness or permit, and acting as your liaison with LPC.

Restoration repairs and rebuilds your existing historic sashes and frames, keeping the original wood, glass, and profiles that give the building its character — the approach LPC generally prefers. Replacement installs new landmark-compliant windows built to match the historic design, used when the originals are too deteriorated to save. For co-op and condo boards we document the condition of each window and recommend the approach that satisfies both LPC and the board.

It depends on scope and LPC review times. Most projects run from a few weeks for a single unit to several months for a full building, and LPC approval — when required — typically adds several weeks up front. You'll get a project timeline after your free on-site assessment.

Yes. We handle the complete LPC process end to end — existing-conditions documentation, drawings and material specifications, Certificate of Appropriateness or permit filing, and direct liaison with LPC staff — so you don't have to navigate it alone.

We install Marvin, Norwood, and Caoba windows, among others — all specified to meet LPC requirements for landmark and historic-district buildings. We match muntin profiles, sightlines, glass, and finishes to the historic design.

Yes. We work across all five boroughs — Manhattan, Brooklyn, Queens, The Bronx, and Staten Island.

Buildings built before 1978 are likely to contain lead-based paint, and disturbing it during window work triggers federal RRP and NYC lead-safety requirements. We are EPA Lead-Safe certified and handle lead paint safely as part of the project, performing lead paint abatement where it's needed.

We visit your building, inspect the windows, discuss your goals and any board or LPC requirements, and walk you through the options — restoration, replacement, and approvals. You get a clear recommendation and scope, with no obligation.

Both. We partner with architects, designers, property managers, co-op and condo boards, general contractors, and individual owners — coordinating drawings, specifications, and LPC submissions to fit into the wider project.

Our workshop is in Newark, NJ, where much of the millwork and restoration is done. Our primary service area is New York City's five boroughs plus nearby New Jersey — contact us with your location and we'll confirm we can help.