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Parapet Walls

Parapet construction, repair, and waterproofing for NYC buildings

Schedule a Parapet Inspection → Call Us Today

Why Choose Allstate?

NYC DOB Licensed & Insured

Free Written Estimates

5-Year Workmanship Warranty

Local Law 11 Expertise

Clean Jobsite Guaranteed

About This Service

Professional Parapet Walls in NYC

Parapet walls are one of the most exposed and most commonly neglected parts of a building. Subject to extreme weather, freeze-thaw cycles, and constant UV exposure, deteriorated parapets are a top cause of water intrusion, facade failures, and Local Law 11 violations. Allstate Construction provides comprehensive parapet inspection, repair, rebuilding, and waterproofing.

The Allstate Difference

We have extensive experience with NYC Local Law 11 compliance work. Our team includes facade inspection-trained professionals who understand what SWARMP and UNSAFE classifications require.

What's Included

Our Parapet Walls Services

Full parapet wall reconstruction
Parapet repair and stabilization
Coping stone and precast cap replacement
Aluminum capping installation on parapet
Through-wall flashing installation
Waterproof membrane on parapet top
Repointing deteriorated parapet brick
Corbel and decorative feature repair
Parapet anchor and tie-back systems
NYC Local Law 11 parapet compliance

Our Process

How We Handle Your Parapet Walls Project

Step by step — from first contact to finished job

Facade Inspection

We inspect from ground level and from the roof to assess parapet condition, coping, flashing and mortar joints.

Stabilization

Unsafe sections secured or braced before repair work begins.

Reconstruction

Deteriorated brick removed and rebuilt. New through-wall flashing installed at base.

Capping & Waterproofing

New coping or aluminum cap installed. Top surface waterproofed to prevent future damage.

FAQs

Common Questions About Parapet Walls

Signs include loose or leaning brick, cracked coping, open mortar joints, visible bulging, and efflorescence (white staining). Any of these require immediate inspection.

Yes. Under Local Law 11, buildings over 6 stories must have facades — including parapets — inspected every 5 years. Unsafe conditions must be repaired promptly.

If the underlying masonry is structurally sound, capping alone is sufficient. If brick is deteriorated or unstable, capping without repair is only a temporary fix.