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.
We prepare the documentation package boards need to vote: scope of work, product specifications, project timeline, insurance certificates, and references from comparable buildings.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Insulated glass unit replacement — field measurement, fabrication, and installation. Most glass orders are completed within one week depending on unit size and specification.
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.
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.