Window replacement for NYC co-op and condo buildings
For Property Managers & Building Boards

Windows for NYC Co-ops & Condos

Building-Wide Window Replacement

We Know the Process.
Every Step of It.

NYC has approximately one million co-op and condo units — the largest cooperative housing market in the world. Window replacement in these buildings isn't just an installation project. It's a multi-stakeholder process involving board votes, alteration agreements, management company coordination, DOB permits, and resident logistics across occupied units — often on a compressed timeline driven by facade inspection reports or energy code requirements.

Kenemax has managed building-wide window replacement projects from 10 to 300+ units. We understand what boards and property managers need — complete documentation before work begins, clear scope, predictable scheduling, and a crew that treats residents' homes with respect.

01
Board Approval Documentation

We prepare the documentation package boards need to vote: scope of work, product specifications, project timeline, insurance certificates, and references from comparable buildings.

02
Alteration Agreement Compliance

We review your building's alteration agreement requirements and provide all documents the managing agent needs — signed agreements, certificate of insurance naming the co-op, and licensed contractor verification.

03
DOB Permits & Filings

Where required, we handle Department of Buildings permit filings — including any architectural or engineering drawings needed for approval. We don't leave permitting to the building.

04
Occupied-Building Installation

We coordinate directly with management and schedule unit access around residents — minimizing disruption and leaving each unit clean. EPA Lead-Safe certified for pre-1978 buildings.

For Property Managers

Everything You Need
in One Package

We've worked with property management companies across all five boroughs. We know what managing agents need before they can authorize work — and we provide it without being asked. The goal is to reduce the back-and-forth, protect the management company, and give the board everything it needs to move forward.

Standard Documentation Package
Certificate of Insurance naming building as additional insured
NYC Home Improvement Contractor license verification (HIC #2130955-DCWP)
EPA Lead-Safe Certified Firm documentation
Signed alteration agreement (as required by building)
Detailed scope of work and product specifications
Project timeline with per-unit scheduling plan
DOB permit filing (where applicable)
Resident notification letter template
Warranty documentation (2-year labor / manufacturer product warranty)
For Co-op & Condo Boards
What to bring to your next board meeting

We can attend board presentations, walk building committee members through product options, and answer technical questions directly. Many boards find it easier to vote when the contractor has presented in person — we're available for that.

Side-by-side product comparison with pricing ranges, performance ratings, and expected lifespan
Energy savings analysis — how new windows affect heating/cooling loads and Local Law 97 (carbon emissions) and Local Law 84 (energy benchmarking) compliance
Project phasing plan if the board wants to prioritize units or floors and spread cost over multiple budget cycles
References from completed building-wide projects in comparable NYC buildings
Warranty
2-Year Labor Warranty on All Installations

All Kenemax installations are backed by a 2-year labor warranty as standard. Product warranties from manufacturers run 10 years and beyond depending on brand and product line. Extended labor warranty options are available. We stand behind our work — and we're reachable when it matters.

Who we work with
Residential Co-ops Luxury Condominiums Property Management Firms Building Owners & Boards
Why Building Managers Choose Kenemax

The Difference Is in the Details

In-House Drafting & Engineering

When a project requires DOB-ready shop drawings, structural calculations, or PE sign-off, we handle it internally. You don't hire a separate engineer. We produce field-verified drawings and submittals that satisfy plan examiners — not approximations.

EPA Lead-Safe Certified

For pre-1978 buildings — which is the majority of NYC co-op stock — federal law requires EPA Lead-Safe Certified firms for renovation work disturbing painted surfaces. Kenemax is certified. We follow required containment and cleanup protocols for every unit, protecting residents and the building from liability.

Single Point of Contact

From the initial building survey through the last unit's installation, you work with one project manager. No handoffs between sales, operations, and installation crews. The person who surveyed your building is accountable for delivery.

Occupied-Building Protocols

We schedule unit access around residents, protect interiors during installation, and leave each apartment as clean as we found it. For building-wide projects, we provide management with a rolling schedule so residents receive advance notice of their installation date.

LPC-Capable for Landmark Buildings

If your building is in a designated historic district or individually landmarked, window replacement requires LPC approval before installation. We handle the entire LPC permit process — assessment, application, Commission communication, and approval tracking. Hundreds of permits filed.

Five Boroughs. Two Offices.

Our Manhattan office (40 West 51st Street) serves Midtown and commercial clients. Our Astoria, Queens location covers the outer boroughs and residential work across all five. We are a New York contractor — not a franchise operator learning the city.

Dedicated Service Division

Beyond full replacements, Kenemax runs a dedicated Service Division for ongoing repairs and maintenance — three fully stocked service vans with two-technician crews on the road daily. Hardware replacements, glass, seals, and caulking serviced on short notice, without waiting in a contractor's queue.

Client Hub Access

Property managers working with Kenemax on a portfolio or building-wide basis receive access to a dedicated Client Hub — submit work orders, track scheduling, review service history by building and unit, and manage invoice documentation in one place.

Local Law Compliance

We understand the local law landscape for NYC buildings — LL11 facade safety, LL97 carbon emissions, LL84 energy benchmarking, and NYCECC compliance. New windows affect your building's energy profile. We can help quantify that benefit and provide the documentation your engineer or compliance consultant needs.

Service & Repair
1–2 Days

Hardware failures, balance replacements, failed seals, broken glass — our service crews are on the road daily and respond within 1 to 2 business days on active accounts.

Glass Replacement
~1 Week

Insulated glass unit replacement — field measurement, fabrication, and installation. Most glass orders are completed within one week depending on unit size and specification.

Window Replacement
~2 Weeks+

Full window replacement — survey, order, delivery, and installation. Typical turnaround is approximately two weeks from approved scope, or longer depending on product lead times and specification complexity.

Get Started

Managing a Building-Wide
Window Project?

We start with a building survey — no charge. We assess existing conditions, review any applicable landmark or energy code requirements, and give you a clear picture of scope, product options, and timeline before you bring anything to the board.

Schedule a Building Survey (917) 589-2909