HLZAE

HLZAE Our passion drives us to construct a legacy as the leading architectural and engineering firm in NYC. Howard L.

Zimmerman Architects & Engineers, DPC (HLZAE) is a full service Architecture/Engineering firm specializing in: Exterior Restoration of Building Facades, Building Preservation, Forensic Investigation and New Building Consulting. When buildings age, weather, leak, shift and become porous; when their systems become overtaxed and outdated, assessing their stability and making them resilient is essenti

al for future use. With a full staff of Architects, Structural Engineers, Mechanical, Electrical and Civil Engineers and an in house Expediting Team, HLZAE’s knowledge and expertise in revitalizing, repairing and upgrading any component of an existing building is implemented to stand the test of time. HLZAE is Certified™ by Great Place to Work® for 2024.

From the street, we usually only see the finished facade. During corner reconstruction at 50 East 42nd Street, portions ...
08/28/2026

From the street, we usually only see the finished facade. During corner reconstruction at 50 East 42nd Street, portions of the exterior were removed, offering a rare view at the steel and brick masonry normally hidden beneath the surface.

Photos by Yuri Karpinovich, HLZAE

Getting closer to the finish line at the Flatiron Building!We’re incredibly proud of the care, skill, and hard work our ...
08/24/2026

Getting closer to the finish line at the Flatiron Building!

We’re incredibly proud of the care, skill, and hard work our team has put into restoring this iconic landmark. Stay tuned as more of the building is unveiled!

Photo by: Lexi Graham, HLZAE

Enjoying some of our favorite views at 111 West 57th Street. Photos by: Larkin Penn
08/14/2026

Enjoying some of our favorite views at 111 West 57th Street.

Photos by: Larkin Penn

Views from 260 West End Avenue.Every building presents its own challenges. Documenting existing conditions at different ...
08/07/2026

Views from 260 West End Avenue.

Every building presents its own challenges. Documenting existing conditions at different elevations helps capture details that can’t be seen from street level.

Photos by Yuri Karpinovich, HLZAE

A recent inspection at 121 Nassau Street gave our team a closer look at one of the building’s defining architectural fea...
07/24/2026

A recent inspection at 121 Nassau Street gave our team a closer look at one of the building’s defining architectural features. More than a century later, details like these continue to stand out above the Lower Manhattan skyline.

Photos by: Yuri Karpinovich

07/03/2026

Rooftops have been getting a lot of attention lately.

This is one we’re actually supposed to be on.

Some of the best work happens from places most people never get to see. This view came as part of a rooftop inspection, where every visit requires training, planning, and the right safety measures.

Behind the scenes at one of our favorite buildings.Lexi and Yuri recently visited the Flatiron to get a closer look at t...
06/26/2026

Behind the scenes at one of our favorite buildings.

Lexi and Yuri recently visited the Flatiron to get a closer look at the ongoing restoration work and take in some incredible views from above.

There’s nothing quite like seeing this landmark up close and watching its next chapter take shape.

Photos by: Yuri Karpinovich

A familiar New York icon is gradually coming back into view.With each section unveiled, the Flatiron Building reminds us...
06/19/2026

A familiar New York icon is gradually coming back into view.

With each section unveiled, the Flatiron Building reminds us why it has remained one of the city’s most beloved landmarks for more than a century.

We’re proud to play a role in this remarkable project and look forward to sharing more as progress continues.

Photos by: Joseph Mozdzanowski

Kip’s Bay Towers from a different perspective. 🏙️Wrapping up the week with views like this, never taking it for granted....
04/17/2026

Kip’s Bay Towers from a different perspective. 🏙️

Wrapping up the week with views like this, never taking it for granted.

Photos by Delaney Bannister, HLZAE

A look at Lower Manhattan from 121 Nassau Street.Being on site always offers a different perspective, one that most peop...
04/03/2026

A look at Lower Manhattan from 121 Nassau Street.
Being on site always offers a different perspective, one that most people don’t get to see.

Photos by: Yuri a Karpinovich, HLZAE

Address

11 West 30th Street, 3rd Floor
New York, NY
10001

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12125649393

Website

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