Comprehensive Waterproofing & Roofing Services in NYC

Water is the single biggest threat to NYC properties — from basement flooding and foundation infiltration to leaking flat roofs and moisture-damaged facades. A1 Building Restoration LLC provides comprehensive waterproofing and roofing solutions that keep your property protected year-round.

Waterproofing Services

Exterior foundation waterproofing
Interior basement waterproofing
French drain installation
Drain tile systems
Sump pump installation
Crawl space waterproofing
Masonry waterproofing and sealing
Window well waterproofing

Roofing Services

Flat roof installation (modified bitumen, EPDM, TPO)
Emergency roof leak repair
Roof replacement
Roof inspection
Flashing repair and replacement
Parapet wall repair
Roof drain installation and repair
Gutter installation

NYC Flat Roof Specialists

Most NYC residential and commercial buildings have flat or low-slope roofs that require specialized materials and installation techniques. A1 Building Restoration has extensive experience with modified bitumen torch-down roofing, EPDM rubber roofing, and TPO systems — properly detailed at parapets, penetrations, and drains for long-term performance.

📞 Get Free Estimate

📞 (917) 765-5757 ✉️ info@a1buildingrestoration.com

Mon–Sat: 7:00 AM – 7:00 PM
Emergency calls welcome 24/7

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📍 Areas Served

Manhattan · Brooklyn · Queens · The Bronx · Staten Island · Long Island · New Jersey · Westchester

🔗 Other Services

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Foundation Work

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Masonry & Brickwork

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Concrete Work NYC

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FAQ

Frequently Asked Questions

Warning signs include water stains on basement walls or floors, visible mold or mildew growth, musty smells in the basement, efflorescence (white chalky deposits) on concrete or masonry, cracks in foundation walls, and standing water after rain.

A1 Building Restoration installs modified bitumen (flat roofing), EPDM rubber roofing, TPO roofing, and asphalt shingle roofing for residential and commercial properties across NYC. We also handle emergency repairs, re-roofing, and roof inspections.

Both approaches have merits. Exterior waterproofing (applied to the outside of the foundation) is more comprehensive and prevents water from reaching the wall. Interior waterproofing manages water that has entered. We assess each situation and recommend the most effective and cost-efficient solution.

High-quality exterior waterproofing with proper drainage typically lasts 20–30+ years. Interior waterproofing systems with sump pumps generally require pump maintenance every 3–5 years. All our waterproofing work is backed by our craftsmanship guarantee.

Service Areas