HLZAE

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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 When buildings age, weather, leak, shift and become porous; when their systems become overtaxed and outdated, assessing their stability and making them resilient is essential for future use.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.

10/16/2026

Another day, another incredible view from the top of the Flatiron Building. We know we’ve been sharing a lot from this iconic NYC landmark lately, but can you blame us? Especially as our work on the building gets closer to the finish line.

🎥 Anisha Athrey, HLZAE

We know this one pretty well.Over the past decade, HLZAE has returned to 75 Livingston Street in Brooklyn for everything...
10/09/2026

We know this one pretty well.

Over the past decade, HLZAE has returned to 75 Livingston Street in Brooklyn for everything from facade repairs and window investigations to plumbing, MEP consulting, and special inspections.

And we have to say, it looks pretty good in the morning light.

Photo by: Yuri Karpinovich, HLZAE

Today marks 25 years since September 11, 2001. On this day and every day, we honor the victims, survivors, first respond...
09/11/2026

Today marks 25 years since September 11, 2001. On this day and every day, we honor the victims, survivors, first responders, and heroes.

We are reminded of the resilience and determination that define us, and of how proud we are to call ourselves New Yorkers. Our city continues to stand strong and united.

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.

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

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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