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Gilsanz Murray Steficek

@gmsllp

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Structural Engineers and Building Envelope Consultants
New York | New Jersey | Connecticut | California

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GMS provides a comprehensive range of inspection services for structures and building envelopes, including special inspections, garage, façade, retaining wall, tunnel, pedestrian bridge assessments, and parapet testing. We have ICC certified special inspectors, NYC Qualified Parking Structure Inspectors (QPSI), Qualified Exterior Wall Inspectors (QEWI), Qualified Retaining Wall Inspectors (QRWI), qualified parapet inspectors, and nationally certified tunnel inspectors. Our qualified staff deliver clear evaluations, code compliance support, and repair design services to ensure safety and performance.

To learn more about GMS inspection services, email us at info@gmsllp.com or visit gmsllp.com. by @gmsllp

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8 months ago

We've excited to share in the unveiling of Moncler's new U.S. Flagship store at the GM Building in New York City!

We served as local architect for the project alongside a stellar team to make this vision for the future of retail a reality. taken in Fifth Avenue by @gmsllp

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9 days ago

Transitions between rooms can be captivating in unexpected ways. Here, the views through to the landscape frame the passage into a bedroom… a way to create calm and warmth simultaneously with light, views and materials.

Team
General Contractor @structureworksconstruction
Structural @gmsllp
MEP @ces_engineering
Lighting @piercelightingstudio
Landscape @wagnerhodgson
Photography @paul_warchol

#architecture #desaichiaarchitecture #countryhouse #livinginnature #sustainabledesign taken in Chatham N.Y. by @gmsllp

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15 days ago

Highlighting a detail where form, materials, and sustainability merge…
The carport provides a protected place to enter the home. Corrugated aluminum and Radiata Pine provide durability and subtle textural movement with light.
The sloped roof extends out, culminating in a wide scupper that directs storm water to a gravel bed and drywell below. Water dissipates from the drywell to nearby rain gardens that serve as habitats for wildlife and pollinators.
Holistic design, captured in a moment at the Chatham Residence…

Photography @jakebalston
Landscape Design @wagnerhodgson
Structural @gmsllp
Mechanical @ces_engineering
Lighting @piercelightingstudio
Civil- Crawford Associates
General Contractor @structureworksconstruction

#desaichiaarchitecture #architecture #countryhouse #sustainabledesign #holisticliving taken in Chatham N.Y. by @gmsllp

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16 days ago

We are thrilled that the BBC @bbc has featured the Chatham Residence as one of the world's best new buildings immersed in nature!

We will be presenting the project at the World Architecture Festival @worldarchfest in November.

Team:
Structural @gmsllp
MEP @ces_engineering
Civil -Crawford Associates
Lighting Design @piercelightingstudio
Landscape Design @wagnerhodgson
Pool Design @drakeleypools
General Contractor @structureworksconstruction
Photography @paul_warchol

#desaichiaarchitecture #architecture #modernarchitecture #countryhouse #waf #worldarchitecturefestival #outddoorliving #livingwithnature #bbc #BBC taken in Chatham N.Y. by @gmsllp

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17 days ago

Some projects show just how far steel goes beyond the frame.

For this Forest Edge home, Tebbens Steel supplied and installed the full structural steel package — wide flange beams, HSS columns, and braced frames engineered to handle coastal wind and snow loads — along with a long list of custom architectural steel: a fireplace and hearth, areaway grating, a steel stair with glass railing, a channel-built stair, rainscreen support at the family room and second floor, stainless embed angle, and pocket door angles.

Moment connections tie the steel frame together at key points throughout the house, giving it the strength to stand up to the elements while still leaving room for the open, glassy architecture this home is known for. Seeing it go from framed steel to finished architecture is always one of our favorite parts of the process.

BUILDER: @gregordemonaco
ARCHITECT & INTERIOR DESIGN: @stellelomontrouhaniarchitects
STRUCTURAL ENGINEER: @gmsllp
LANDSCAPE ARCHITECT: @laguardia_design
PHOTOGRAPHY: @glenallsop

#TebbensSteel #StructuralSteel #SteelFabrication #LongIsland #Hamptons #ArchitecturalSteel #BeforeAndAfter #customfabrication by @gmsllp

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2 months ago

The Chatham Residence has been shortlisted for the World Architecture Festival (WAF) 2026 in the House and Villa (Rural & Coastal) category! The project has also been shortlisted for The American Beauty Prize 2026, Supported by the Royal Fine Art Commission Trust.

We will present our project in front of two live juries at the 3-day World Architecture Festival in Fort Lauderdale, FL, November 18-20, 2026.

@worldarchfest

Project Team:
@gmsllp
@structureworksconstruction
@ces_engineering
@wagnerhodgson
@piercelightingstudio
@amylouise_snyder
@drakeleypools
@elephants_custom_nyc
Crawford Associates

#desaichiaarchitecture #waf #worldarchfest #modernarchitecture
#countryhouse #villa taken in Chatham N.Y. by @gmsllp

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2 months ago

Another look into our interns’ experiences at GMS! 🎥✨

From their first impressions to the lessons they’ve learned along the way, our interns share what makes their journey meaningful.

Thank you for being part of the GMS team — we’re excited to watch you grow!

#InternationalInternsDay #TeamGMS #InternLife #futureprofessionals by @gmsllp

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2 months ago

Happy International Interns Day from GMS! 🎉

We asked our interns to share their experiences, insights, and favorite moments at GMS. Take a look at what they had to say! 🎥✨

#InternationalInternsDay #TeamGMS #InternLife #futureprofessionals by @gmsllp

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2 months ago

☀️ Summer vibes at GMS! 🌆

Last week, our team swapped the office for a rooftop view and gathered for a summer celebration filled with good food, great conversations, and plenty of laughs. Cheers to more team moments and summer memories ahead!

#TeamGMS #summerparty by @gmsllp

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2 months ago

Happy International Women in Engineering Day! 👷‍♀️

Today, we’re celebrating the amazing women at GMS and across the industry who bring creativity, expertise, and fresh perspectives to everything they do. Your hard work and dedication help shape the spaces and communities around us every day.

We‘re proud to work alongside you and grateful for all that you do.
#INWED2026 #WomenInEngineering #InternationalWomenInEngineeringDay by @gmsllp

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3 months ago

Always a pleasure attending the @nybuildingcongress events; today we heard from @nycddc Commissioner Paul Ochoa, a panel discussion led by @raffaeladunne of @consigliconstruction with @northwellhealth Jonathan Cogswell, @lfdriscoll Marisa Kelly and @enneadarchitects @mel.sarko taken in New York Hilton Midtown by @gmsllp

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4 months ago