Top-rated structural engineers.

Get matched with top structural engineers in Long Island, NY

Enter your zip and get matched with up to 5 pros

Need a pro for your structural engineering project in Long Island, NY?

Select your specific project to find the pro for you.

TRUSTED BY LONG ISLAND, NY HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon12
    Verified structural engineering services reviews

Find Structural engineers in Long Island

Tiderunner Engineering and Design PC
4.6(
126
)
Engineer - StructuralDraftsperson/CADD

Serving Long Island, NY and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quality work

"Having to conform to town requirements for a pool and deck, I chose Tiderunner and Engineering to prepare detailed plans Owner Louis came to the job site analyzing the requirements He prepared detailed plans in a very timely manner I was delighted with his service I would recommend this vendor"
 Garage Conversion & Exte
 Before
 After Addition
After Addition
Response time2 days
64 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Tiderunner Engineering & Design PC
Tiderunner Engineering & Design PC
4.7(
46
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Long Island, NY and surrounding areas

Approved

In business since 2003

Warranties offered

Small jobs welcome

"Very personal and professional Lou is not your "typical" engineer. He is very knowledgeable and informative on the latest standards for elevating homes on the south shore. From helical piles, to monolithic foundations with flood vents Lou has been working with us directly on all our mitigation options while providing us with the perfect structural plans for our home. 
- Very Satisfied Homeowner
"
34 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Long Island, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"Quite a few years ago, Artie renovated our bathroom.  Not only did he do a super job, but he made so many helpful suggestions along the way making decision making much easier.  For example, he suggested the type of tub to install and ones to avoid.  He helped us order merchandise and we were able to get a contractor's discount! 
     Recently we wanted to add a stone grilling station and a gazebo to our yard.  Everything I shopped for, I did not like or it was way over priced.....Artie sat with me and helped design a BEAUTIFUL, river rock-blue slate grilling station.  Once again, he directed me where to get the grill, type of grill, what to avoid and what would look best.  He takes the time to listen and know exactly what the customer is looking for.  He made everything by hand and the result shows....We get so many compliments from it!  He is currently completing a Tiki Hut Bar/Gazebo........when it came to ordering the tiki hut straw for the roof, Artie took it upon himself to google information online and forward me what he had found.....this made it so much easier on my part!  The bar came out great!!!
     Not only is Artie extremely talented, but he is so easy to work with, is very professional,responsible and shows up for a job when he says he will.....when do you ever get that?????  I HIGHLY recommend Artie Derosa!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.7(
123
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Long Island, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Evolution design worked with me on designing and addition for a 100 and 5 year old house. We worked on the dimensions of the addition Plus the materials. Evolution understood the local zoning which was amazing that they knew that. We have not started construction. And evolution can help pull the permits and I'm considering them for that as well. All in all it was a long project but it was done efficiently, working with several of the staff an the departments."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
63 neighbors recently requested a quote
Avatar for James Phillip Golden Architect
James Phillip Golden Architect
4.8(
5
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Long Island, NY and surrounding areas

Approved

In business since 2017

Credit card accepted

High end architect specializing in making a house feel like home!\nI make people’s dream homes a reality. There is nothing more satisfying to me then improving the quality of life for my clients and giving them a house that they are able to make into their homes.\nI have been a licensed architect since 2015 and am currently registered in Rhode Island, Connecticut, New York, Maine and Massachusetts. With my NCARB certificate I am able, if necessary, to obtain reciprocal licensure throughout the country in a short time period. \n\nI am inspired by our local built environment, humble materials, classical building forms and traditional building details. I have a strong interest in the reinterpretation of classical building forms, blended with contemporary open floor plans. \nI have a stronger interest in helping to guide my clients to ways of improving the quality of their lives through adapting the built environment to meet their needs.

Main front facade
Pool deck
Main staircase open to den beyond
Master bathroom
Great room opens to kitchen with double islands

+93

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NextEdge Builders & Estimators Corp.
NextEdge Builders & Estimators Corp.
5.0(
4
)
Draftsperson/CADD

Serving Long Island, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I?m Edison Matteo from Sunshine Estimation, based in Erie, PA. We worked with NextEdge Builders Corp for our architectural project, and I personally managed the entire process from start to finish. Initially, I had them prepare detailed CAD drawings for our project, and the quality and accuracy of these drawings impressed me immediately. Once the drawings were completed, I requested a cost estimate based directly on them. The estimate provided was extremely precise, with an accuracy of around 98?99%, which gave me great confidence in planning our budget and moving forward. What sets NextEdge Builders Corp apart is that everything is handled under one roof. From drafting to estimation, the process is seamless, reducing the need for constant revisions or coordinating multiple service providers. Their communication, professionalism, and attention to detail truly stand out. I highly recommend NextEdge Builders Corp for anyone looking for reliable and accurate drafting and estimation se"
Response time5 hrs
Response rate100%
...
Showing 1-10 of 120
Structural Engineering questions, answered by experts

After finishing structural engineering work in Long Island, promptly schedule a final inspection with your local building department and submit all necessary completion paperwork within 90 days. Update your homeowner’s insurance to reflect the improvements and store all permits, drawings, and inspection reports together. For coastal properties, arrange a wind resistance check after storm season and monitor for foundation settlement, especially in areas with clay-rich soil.

Helpful?

For Long Island projects, use concrete rated at least 4,000 PSI with air entrainment for freeze-thaw protection, and epoxy-coated rebar to guard against coastal corrosion. Opt for hot-dip galvanized steel near the shoreline and hurricane-rated connectors for framing. Engineered lumber and waterproof membranes are essential for high water tables. Always confirm your materials meet local climate demands and building code standards.

Helpful?

In Long Island, structural engineering upgrades—such as foundation reinforcement or hurricane-resistant features—can significantly boost your home’s value and attract buyers. Homes with documented wind and flood resistance often command higher prices. Energy-efficient improvements add further appeal. Keep all engineering reports, permits, and warranties organized, as these reassure buyers and may help you secure lower insurance premiums, making your property more marketable.

Helpful?

In Long Island, begin spring by checking your foundation for cracks caused by freeze-thaw cycles. During summer, review hurricane preparedness by inspecting roof ties and deck fasteners. In fall, look for storm or water damage and examine chimney supports. Winter requires monitoring snow loads and watching for ice dams. For homes near the coast, quarterly inspections help catch salt air corrosion and storm-related issues early.

Helpful?

For a smooth project in Long Island, start by reviewing local building codes, zoning, and flood zone requirements. Assemble a team that includes a structural engineer, architect, and skilled contractor. Apply for permits using detailed engineered drawings, and plan work outside hurricane season to avoid weather delays. Mark underground utilities before excavation, communicate with neighbors, and document progress with photos and inspection records for future reference.

Helpful?

The Long Island, NY homeowners’ guide to structural engineering services

From average costs to expert advice, get all the answers you need to get your job done.