General Contractors in Harlem, Manhattan, NY

Historic residential neighborhood with brownstones and pre-war apartments. Contractors listed in this directory work across Harlem and coordinate Department of Buildings permits, board approvals, and the logistics of working within an occupied building. Whether you are renovating a single apartment, restoring a townhouse, or fitting out a commercial space, the same neighborhood factors — building type, landmark status, board rules, and access — shape how the work gets done.

Brownstone townhouses, pre-war apartment buildings, and new construction.

Residential renovations in Harlem range from kitchen and bathroom remodels to full apartment gut renovations. Co-op and condo buildings require board alteration agreements, insurance certificates, and often a building-approved contractor before construction can begin. Detached and semi-attached homes give more flexibility but can involve older systems, lead and asbestos assessment, and zoning limits on additions and exterior changes.

Kitchen and bathroom remodels are among the most common projects in Harlem. Moving plumbing, gas, or walls triggers Department of Buildings permits, and waterproofing behind tile is critical to protecting the units below. In co-ops and condos, board approval and a wet-over-dry review often govern how far a layout can change. Explore the kitchen remodeling and bathroom remodeling pages for scope, costs, timelines, and contractor listings.

Commercial renovation and build-out projects in Harlem include office fit-outs, retail and restaurant construction, and mixed-use work, often coordinated with landlords and managed to minimize disruption. Storefront changes, accessibility, signage, and — on landmarked blocks — LPC approval all factor in. See the commercial construction page for more.

Harlem includes brownstone and townhouse stock where restoration requires specialists in historic stone, stoop repair, and landmark compliance. Exterior work in a landmark district needs Landmarks Preservation Commission approval on top of Department of Buildings permits, and original framing often needs reinforcement before new loads. See the brownstone and townhouse restoration page for specialist contractors.

Based on the building stock in Harlem, these are the property improvement projects homeowners and building owners most often take on:

• Multiple landmark districts require LPC approval for exterior work
• Brownstone restoration a core specialty
• Pre-war apartment and co-op renovations under board rules

Alongside the neighborhood-specific factors above, these citywide rules shape most Harlem projects:

• Department of Buildings permits are required for plumbing, electrical, gas, and structural work
• Co-op and condo renovations require board alteration agreements, insurance, and often a damage deposit
• Residential construction is usually limited to weekday daytime hours inside occupied buildings
• Landmarked buildings and districts require Landmarks Preservation Commission approval for exterior changes
• Sidewalk sheds and DOT permits are often required for exterior work above ground level

These are the services most often paired with renovation and construction projects in Harlem.