Co-op & Condo Renovation in New York City

Renovating a co-op or condo in New York City is not like renovating a house. Before a single wall comes down, your plans have to get through the board, the managing agent, the building's architect or engineer and, in many cases, the Department of Buildings. Dacaj Construction has been working inside NYC co-ops and condos since 2006, and we manage that entire process for you so your project starts on time and stays in good standing with your building.

We are a family-owned, father-and-son general contractor, licensed and insured in New York City, Westchester County and Nassau County. We work directly with owners, and we also partner with architects and interior designers who need a contractor that knows how buildings actually operate.

Renovated living room with custom built-in bookshelves and marble fireplace by Dacaj Construction

What We Handle for Co-op and Condo Owners

Most renovation delays in NYC buildings have nothing to do with construction. They come from missing paperwork, insurance certificates that don't match the building's requirements, or plans that get kicked back during review. We take that off your plate.

  • Alteration agreement support. We review your building's alteration agreement with you and prepare everything the contractor side requires.
  • Certificates of insurance. We issue COIs that match your building's exact requirements, including the correct additional insured names.
  • Board and building review. We work with your architect to prepare drawings and scopes that move through board and engineer review cleanly.
  • Permits. When your scope requires DOB filings, we coordinate with your architect or expeditor so work begins legally and on schedule.
  • Building logistics. Elevator reservations, protection of common areas, debris removal and approved work hours are planned before day one.
  • Neighbor courtesy. Clean job sites, floor and hallway protection, and crews who respect the people who live next to your project.

Renovations We Perform in Co-ops and Condos

We handle everything from a single room to a complete gut renovation.

  • Full apartment and gut renovations
  • Kitchen remodeling, including custom cabinetry and layout changes
  • Bathroom remodeling, including waterproofing and luxury tile work
  • Pre-war apartment restoration and modernization
  • Custom millwork, built-ins and closets
  • Flooring, plaster repair, skim coating and fine painting
  • Electrical and plumbing upgrades with licensed trades
  • Combining units and reconfiguring layouts, subject to building approval

Pre-War Co-ops, Modern Condos and New Construction

Every type of building brings its own challenges. In pre-war co-ops, we respect original details like plaster moldings, herringbone floors and paneled doors while updating wiring, plumbing and layouts behind the walls. In condominiums, we coordinate with building management and deliver modern finishes to a high standard. In new construction residences, we take raw or builder-grade space and turn it into a finished, custom home.

How a Dacaj Co-op Renovation Works

  1. Free consultation. We meet at your apartment, walk the space and talk through your goals, budget and timeline.
  2. Detailed proposal. You receive a clear, itemized proposal so you know exactly what is included. No vague allowances hiding the real cost.
  3. Building approvals. We prepare our side of the alteration agreement, issue COIs and work with your architect through board and engineer review.
  4. Construction. A dedicated team works within your building's approved hours, with regular photo updates and a clear schedule.
  5. Final walkthrough. We walk every room with you, complete any punch list items and help close out the alteration with your building.

Why NYC Owners and Designers Choose Dacaj

  • Over 18 years of experience renovating NYC residences
  • Family-owned and operated, with direct access to the owner on every project
  • Licensed and insured in NYC, Westchester County and Nassau County
  • Trusted by architects and interior designers to build their plans with precision
  • Clean, organized job sites and crews with modern tools, including dustless sanding systems
  • Transparent pricing and clear communication from proposal to final walkthrough

Serving Co-op and Condo Owners Across NYC

We renovate apartments throughout Manhattan, including the Upper East Side, Upper West Side, Midtown and Downtown, as well as Brooklyn, Queens and the Bronx. We also serve condo and co-op owners in Westchester County and Nassau County.

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Frequently Asked Questions

How long does it take to get board approval for a co-op renovation?

It depends on your building and your scope. Simple projects can be approved in a few weeks, while larger renovations that need engineer review and DOB permits often take longer. We help you submit a complete package the first time, which is the best way to avoid delays.

Do you provide the certificate of insurance my building requires?

Yes. Every building has its own insurance requirements, and we issue COIs that match them exactly, including the additional insured parties your managing agent specifies.

Can I renovate my kitchen or bathroom to a new location in my apartment?

Sometimes. Many NYC buildings have a "wet over dry" rule that limits where kitchens and bathrooms can go. We review your building's rules early so your design is realistic before you invest in drawings.

Do I need an architect for my co-op renovation?

Many co-op boards require drawings from a licensed architect or engineer, especially for plumbing, electrical or layout changes. If you don't have one, we can recommend architects we work with regularly.

What hours can work be done in my building?

Most NYC buildings limit construction to weekday business hours, and some restrict work during the summer. We plan your schedule around your building's rules from the start.

Start Your Co-op or Condo Renovation

Ready to talk about your apartment? Call Dacaj Construction at (917) 564-1006 or request a free consultation online. We will walk your space, review your building's requirements and give you a clear plan to move forward.

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