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Balcony Waterproofing

Trusted general contractor serving the Bronx, Manhattan, Brooklyn, Queens, Staten Island,
Yonkers, Long Island and New Jersey. Free estimates: (929) 670-0525.

02-waterproofing

Leaking balconies and terraces can damage ceilings below, corrode railings and weaken concrete over time. Homex Builders waterproofs balconies and terraces for condo owners, co-ops, landlords and homeowners across the Bronx, Manhattan, Brooklyn, Queens, Staten Island, Yonkers, Long Island and New Jersey.

We remove failing coatings or tile where needed, repair the concrete or substrate, and install a waterproof membrane with correct slope, drainage and flashing at walls, doors and railings. We then finish with tile, pavers or a traffic coating for a durable, attractive surface.

What Our Balcony Waterproofing Includes

A balcony or terrace waterproofing project typically includes:

Surface Preparation

Removing failed coatings or tile and repairing cracked or spalled concrete.

Waterproof Membrane

Installing a liquid or sheet membrane with proper slope and drainage.

Flashing & Finish

Flashing at doors, walls and railings, then a tile, paver or traffic-coat finish.

Balcony leaks rarely fix themselves. Waterproofing early prevents damage to the units below and protects the structural concrete and railings.

Water leaking from your balcony or terrace?

Our Balcony Waterproofing Process

We keep every balcony waterproofing project organized, clean and clearly communicated, from the first site visit to the final walkthrough.

Why Choose Homex Builders

Experience with terraces and balconies on NYC condos, co-ops and multi-family buildings.
Clear written estimates with a defined scope, materials and timeline.
Clean, organized job sites and respectful crews from start to finish.
Free estimates across NYC, Yonkers, Long Island and New Jersey.

Frequently Asked Questions

Why is my balcony leaking?

Common causes include cracked concrete, failed membranes, poor slope that lets water pond, and missing or damaged flashing at doors and walls.

Can you waterproof under existing tile?

In most cases, the tile must be removed to repair the substrate and install a proper membrane. We reinstall new tile or pavers afterward.

How long does balcony waterproofing take?

Most balconies take a few days, depending on size, repairs needed and curing times.

How much does balcony waterproofing cost in NYC?

Pricing depends on the size of the area, the condition of existing materials, access and the materials you choose. We provide a free on-site estimate with a clear scope and price before any work begins.

Do I need a permit for this work?

Balcony work on larger buildings may require DOB permits and is often connected to Local Law 11 façade inspections. We help identify requirements.

Which areas do you serve?

Homex Builders serves the Bronx, Manhattan, Brooklyn, Queens, Staten Island, Yonkers, Long Island and New Jersey.

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