Get matched with top structural engineers in Plymouth, NY

Q: How much does a structural engineer cost?

• <div><p>The average cost to hire a structural engineer is about $550, with prices generally ranging from $200 to $1,500. Structural engineers may charge a flat rate, by the project, by square footage, or an hourly rate, which is typically between $100 and $250. Many jobs, such as inspections and structural calculations, are billed at a flat rate, which often falls between $300 and $800. The final cost depends on several factors, including the project's type, scope, size, complexity, ease of access for inspection, and your geographic location.</p></div>

Q: How much weight does a 4-inch concrete slab support?

• <div><p>A 4-inch-thick concrete slab can support around 4,000 pounds per square foot if a contractor reinforces the slab with rebar, while that same slab without reinforcements will support closer to 1,000 pounds. For the purposes of a patio, 4 inches in thickness without reinforcement should suffice unless you&rsquo;re installing heavy kitchen equipment or a hot tub on it. In those cases, reinforcing your slab and sticking with 4 inches of thickness should provide plenty of strength.</p></div>

Q: How do I know if I need a structural engineer?

• <div><p>You need to <a href="https://www.angi.com/articles/how-to-hire-a-structural-engineer.htm">hire a structural engineer</a> when building or modifying any component with a structural load in your home. Common situations where you would need a structural engineer include home inspections when buying or selling a home, investigating possible issues with your foundation, beams, load-bearing walls, or chimneys, breaking ground on a new home or structure on your property, and renovating an old part of your home that could threaten any structural integrity. Home additions and bump-outs also require an engineer. </p></div>

Q: How do professionals incorporate framing into existing structures?

• <div><p>By careful planning and reinforcement to maintain structural integrity.</p></div>

Q: How can you tell if a crack is structural?

• <div><p>Foundation cracks that are 1/8 inch wide or less, aren&rsquo;t uneven across the gap, and don&rsquo;t continue widening over time are usually just normal settling cracks and don&rsquo;t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.</p></div>

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Verified Reviews for Structural Engineering pros in Plymouth, NY

*The Angi rating for Structural Engineering companies in Plymouth, 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 Plymouth, 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 March 12, 2025

Reviewed in March 2025
Rich and his team have done several restorations. First and foremost he put in a new bathroom upstairs, from the plumbing to all the fixtures, insulation wiring everything that is required and a job well done! They also re-wired the house for a 200amp service from pole to house then took on...
Longtail Contracting, LLC
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Reviewed in September 2024
I couldn't be happier with the new metal roof that these guys installed. The job was very well done and looks fantastic. DSA may not be the least expensive option for your building/repair needs. However, they are by no measure overpriced. The crew worked 7 days to finish the job quickly and...
DSA RENOVATIONS CORP.
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Reviewed in July 2023
Northshore responded quickly to our inquiry and was able to complete the structural analysis we needed within a week. We received our report quickly. Everything was thorough and professional.
Northshore Engineering and Design
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Reviewed in May 2023
Bill was wonderful to work with. His work is beautifully done. I am so please with my new fence and gate, it is just perfect!
Private Passage Door Company
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Reviewed in September 2022
Very friendly and efficient ð Gave me a free estimate and picked up all materials for free to save me a delivery fee. DW Construction fixed my decking boards that were rotted, fixed my handrails, and rebuilt my steps to ensure my safety and my families as well. I highly recommend him and will...
DW Construction
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Reviewed in September 2022
Excellent work. A good experience. Nick and the crew are good on their word. We hired them to convert underused living space into an ADA bath and bedroom. Their construction is quality . The project was done quickly and cleanly. I would not hesitate to call them again .
Citiscape Construction
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Reviewed in July 2022
The crew was courteous and took care not to damage property. Rich Davis was also professional and able to explain everything. Job was done in three days and cleanup was completed. Highly recommend this crew for basement water proofing.
Highlander Waterproofing, Inc
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Reviewed in March 2022
Very professional and understanding. After remodeling my entire bathroom, it looks beautiful now. They will be doing some other ideas around my home. I highly recommended them if youÃ¢Â Â re looking for any type of remodeling!! 10/10!!
R. C. L Construction
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Reviewed in September 2021
Copperfield Plumbing is the best company I have ever had come to do work on my house. They fixed my problem followed up with warranty recommendations called to check on the operations of the system after the work was complete and got me warranty replacements for no charge. I cant believe how...
Copperfield Plumbing Corp
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Reviewed in May 2021
Eric was very helpful. He met me on the property despite a short notice and was very professional. Even though I ended up hiring someone else, he gave a lot of advice on the project. I will definitely consider hiring him for the next project.
Stillwater Construction
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Find Structural engineers in Plymouth

Thornton Engineering, PC

5.0(

)

Serving Plymouth, NY and surrounding areas

In business since 1960

"very positive. he was candid and knowledgable"

Recommended by100%of homeowners

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Northshore Engineering and Design

5.0(

)

Serving Plymouth, NY and surrounding areas

In business since 2012

Credit card accepted

"Very good quality work, custom design, knows the industry practice well. Happy with the final design."

Response time11 hrs

Recommended by100%of homeowners

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Structural Engineering questions, answered by experts

The average cost to hire a structural engineer is about $550, with prices generally ranging from $200 to $1,500. Structural engineers may charge a flat rate, by the project, by square footage, or an hourly rate, which is typically between $100 and $250. Many jobs, such as inspections and structural calculations, are billed at a flat rate, which often falls between $300 and $800. The final cost depends on several factors, including the project's type, scope, size, complexity, ease of access for inspection, and your geographic location.

A 4-inch-thick concrete slab can support around 4,000 pounds per square foot if a contractor reinforces the slab with rebar, while that same slab without reinforcements will support closer to 1,000 pounds. For the purposes of a patio, 4 inches in thickness without reinforcement should suffice unless you’re installing heavy kitchen equipment or a hot tub on it. In those cases, reinforcing your slab and sticking with 4 inches of thickness should provide plenty of strength.

You need to hire a structural engineer when building or modifying any component with a structural load in your home. Common situations where you would need a structural engineer include home inspections when buying or selling a home, investigating possible issues with your foundation, beams, load-bearing walls, or chimneys, breaking ground on a new home or structure on your property, and renovating an old part of your home that could threaten any structural integrity. Home additions and bump-outs also require an engineer.

By careful planning and reinforcement to maintain structural integrity.

Foundation cracks that are 1/8 inch wide or less, aren’t uneven across the gap, and don’t continue widening over time are usually just normal settling cracks and don’t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.

The Plymouth, NY homeowners’ guide to structural engineering services

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

See all articles

Dan Simms
•
May 30, 2026May 30, 2026
How Much Does a Structural Engineer Cost to Hire? [2026 Data]
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.
Haley Nothstein
•
May 30, 2026May 30, 2026
How Much Does It Cost to Replace a Main House Support Beam? [2026 Data]
A damaged main support beam can cause serious structural damage to your house. Learn how much it costs to replace a main house support beam.
Timothy Moore
•
May 30, 2026May 30, 2026
How Much Does It Cost to Install an LVL Beam? [2026 Data]
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.
Em Norton
•
Apr 10, 2026Apr 10, 2026
Everything to Know About LVL Beams
What is an LVL beam? Read about LVL beams to determine if this material is safe and suitable for your project.
Rachel Hoffman
•
Apr 5, 2026Apr 5, 2026
Structural Engineer vs. Architect: Their Differences and Why You Need Both
Do you have an upcoming construction project and aren’t sure whether hiring a structural engineer vs an architect is better? Find out here.
Rachel Hoffman
•
May 2, 2026May 2, 2026
Structural Steel Beam vs. Wood Beam: Which Is Right for You?
Structural steel and wood beams ensure your house is structurally sound. Learn the difference between steel and wood beams and how to choose the right one.