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*The Angi rating for Structural Engineering companies in Nassau, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
*The HomeAdvisor rating for Structural Engineering companies in Nassau, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
Last update on October 25, 2025
Find Structural engineers in Nassau

Consultant Engineering Services, PLLC
Consultant Engineering Services, PLLC
Site visit fees start at $250. We are a locally owned and operated company that specializes in a variety of structural engineering and custom drafting/CADD projects. Our services are customizable to meet the needs of each customer, and we take pride in our ability to consistently exceed expectations. We look forward to building long-term relationships with all of our clients. Give us a call today to learn about all the ways we can help to achieve your project goals! HUD loan inspection reports, Structural Inspections, Home Inspections, Site Plans, Septic design, Foundation design, Deck Design, Additions, Home Remodel. All reports and drawings are stamped by P.E. and will be completed in a timely manner allowing you to obtain a building permit. Robert Mann is licensed in New York, Vermont, Pennsylvania, New Hampshire, Massachusetts, Connecticut and Maine. $250 Minimum Site Visit Fee. https://www.cesny.us
"Robert was fast to schedule an appointment, arrived in time, and carefully examined all the problem areas. He also answered all the questions I had."
Horia P on March 2022
Site visit fees start at $250. We are a locally owned and operated company that specializes in a variety of structural engineering and custom drafting/CADD projects. Our services are customizable to meet the needs of each customer, and we take pride in our ability to consistently exceed expectations. We look forward to building long-term relationships with all of our clients. Give us a call today to learn about all the ways we can help to achieve your project goals! HUD loan inspection reports, Structural Inspections, Home Inspections, Site Plans, Septic design, Foundation design, Deck Design, Additions, Home Remodel. All reports and drawings are stamped by P.E. and will be completed in a timely manner allowing you to obtain a building permit. Robert Mann is licensed in New York, Vermont, Pennsylvania, New Hampshire, Massachusetts, Connecticut and Maine. $250 Minimum Site Visit Fee. https://www.cesny.us
"Robert was fast to schedule an appointment, arrived in time, and carefully examined all the problem areas. He also answered all the questions I had."
Horia P on March 2022
Daniel Contelmo Architects
Daniel Contelmo Architects
From classic estates to countryside cottages, Daniel Contelmo Architects has provided sensitive design aesthetic for over 30 years in New York, Connecticut, Massachusetts, and New Jersey. Our clients share a commitment to finely detailed homes that communicate with their surroundings. The Historic Hudson Valley in New York has been an inspiration, steeped in a traditional vernacular. Daniel Contelmo Architects is committed to the revival and evolution of architecture that is inspired by the past and makes a statement for the future. We provide architectural designs, construction drawings, and construction administration for custom homes and high-end additions and renovations. The firm's work has been predominately in the Millbrook area of Dutchess County and the Towns of Bedford and Chappaqua in Westchester County, as well as the Hamptons.
From classic estates to countryside cottages, Daniel Contelmo Architects has provided sensitive design aesthetic for over 30 years in New York, Connecticut, Massachusetts, and New Jersey. Our clients share a commitment to finely detailed homes that communicate with their surroundings. The Historic Hudson Valley in New York has been an inspiration, steeped in a traditional vernacular. Daniel Contelmo Architects is committed to the revival and evolution of architecture that is inspired by the past and makes a statement for the future. We provide architectural designs, construction drawings, and construction administration for custom homes and high-end additions and renovations. The firm's work has been predominately in the Millbrook area of Dutchess County and the Towns of Bedford and Chappaqua in Westchester County, as well as the Hamptons.

Smart Home Outfitters Inc
Smart Home Outfitters Inc
Family and locally owned, Smart Home Outfitters is your premier home automation company. We specialize in the integration of smart systems into your home across multiple products and platforms. Creating a one stop shop to outfit your home with all the necessary and most up to date equipment to make your life more convenient, efficient and secure.
"It went very well and I highly recommend them."
Justin S on April 2019
Family and locally owned, Smart Home Outfitters is your premier home automation company. We specialize in the integration of smart systems into your home across multiple products and platforms. Creating a one stop shop to outfit your home with all the necessary and most up to date equipment to make your life more convenient, efficient and secure.
"It went very well and I highly recommend them."
Justin S on April 2019
Composite Technology & Infrastructure, LLC
Composite Technology & Infrastructure, LLC
Composite Technology and Infrastructure is built on the sum of our strengths: In-house engineering, mechanical design, project management, fabrication and inspection. We provide innovative, cost effective and sustaining solutions specific to corrosion and wear of equipment, pipe and critical plant infrastructure. Not only can we design, engineer, and specify a custom composite solution we build it, too. In our 15,000 square foot, state-of-the-art composite fabrication shop with a team of experienced and dedicated technicians. Repair it, don't replace it!
Composite Technology and Infrastructure is built on the sum of our strengths: In-house engineering, mechanical design, project management, fabrication and inspection. We provide innovative, cost effective and sustaining solutions specific to corrosion and wear of equipment, pipe and critical plant infrastructure. Not only can we design, engineer, and specify a custom composite solution we build it, too. In our 15,000 square foot, state-of-the-art composite fabrication shop with a team of experienced and dedicated technicians. Repair it, don't replace it!
Braley Restoration
Braley Restoration
We specialize in bringing your old building back to it once was. We love any challenge,we cover from fixing repairs in old shaker barns to designing modern 12 ft glass doors in a famous artists studios One of our favorite jobs is the restoration of of 1860 mansion in Kinderhook .
We specialize in bringing your old building back to it once was. We love any challenge,we cover from fixing repairs in old shaker barns to designing modern 12 ft glass doors in a famous artists studios One of our favorite jobs is the restoration of of 1860 mansion in Kinderhook .
Sense Projects PVT. LTD
Sense Projects PVT. LTD
Sense Projects introduced as one stop solutions for your all related Interior Designing, Architectural Planning , Civil construction, Turnkey Projects, Structural Fabrication and Erection work, best class services is providing in Delhi, Noida & Gurgaon, India
Sense Projects introduced as one stop solutions for your all related Interior Designing, Architectural Planning , Civil construction, Turnkey Projects, Structural Fabrication and Erection work, best class services is providing in Delhi, Noida & Gurgaon, India
The Milovia Group
The Milovia Group
The Milovia Group is a structural engineering firm specializing in traditional structural engineering, renewable energy technologies and passive solar homes and retrofits.
The Milovia Group is a structural engineering firm specializing in traditional structural engineering, renewable energy technologies and passive solar homes and retrofits.

Architecture & Engineering Consulting LLC
Architecture & Engineering Consulting LLC
We are a small consulting firm that provides both Architecture and Engineering services. Our professional services agreements can be prepared on an hourly rate or fixed-fee basis, depending on the scope and complexity of your Project.
We are a small consulting firm that provides both Architecture and Engineering services. Our professional services agreements can be prepared on an hourly rate or fixed-fee basis, depending on the scope and complexity of your Project.
Hudson Valley Construction Company
Hudson Valley Construction Company
Hudson Valley Construction Company is a full service company we do all aspects of new construction, historical restoration additions, garages, decks, kitchens, baths, electrical, plumbing, masonry, painting, excavation and more the owner is a 4th generation contractor.
Hudson Valley Construction Company is a full service company we do all aspects of new construction, historical restoration additions, garages, decks, kitchens, baths, electrical, plumbing, masonry, painting, excavation and more the owner is a 4th generation contractor.
Ryan Builders
Ryan Builders
Ryan Builders is a family owned and operated business serving the Capital District for over 30 years. While retaining our traditional buidling expertise Ryan Builders is your #1 choice for modern day building needs. Financially sound and fully insurred, Ryan Builders accepts cash and checks.
Ryan Builders is a family owned and operated business serving the Capital District for over 30 years. While retaining our traditional buidling expertise Ryan Builders is your #1 choice for modern day building needs. Financially sound and fully insurred, Ryan Builders accepts cash and checks.
The Nassau, NY homeowners’ guide to structural engineering services
From average costs to expert advice, get all the answers you need to get your job done.

The cost of a structural engineer is easily justifiable given the value they bring to the table. Use this guide to see what hiring your professional will total.

Looking to add utility and easier access to your basement? Use this guide on the cost to cut a concrete wall to add a door to your basement.

Looking to remove load-bearing walls and vertical supports to open up your living space? Learn about what affects the cost to install an LVL beam.

Before removing a wall, make sure it’s not load-bearing. Learn the benefits of hiring a structural engineer to check if a wall is load-bearing.

Removing columns can open up a space, but you’ll need to exercise caution to avoid damaging your home’s structure. Use these steps to find out if your column is load-bearing.

The right ceiling joist spacing will help support your ceiling and prevent sagging, but there are a number of factors to consider. This guide can help.
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