Top-rated structural engineers.

Get matched with top structural engineers in Mendham, NJ

Enter your zip and get matched with up to 5 pros

Need a pro for your structural engineering project in Mendham, NJ?

Select your specific project to find the pro for you.

TRUSTED BY MENDHAM, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon14
    Verified structural engineering services reviews

Find Structural engineers in Mendham

"I called five different companies from the Angi list before finding Colonna Consulting. When I called and I explained my situation to Nick (the owner), I immediately knew he was the one. Despite his tight schedule, he managed to fit me in on the same day. We hired Colonna and Nick to inspect our residential structural foundation. Nick responded promptly to my requests and explained everything clearly during the inspection. He completed the report within the same day. Working with him was a pleasure, and his professionalism made the process smooth and stress-free. Thank you very much Nick, for your fast response."

May S on August 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. We provide professional structural inspection, design, drawing, permit support, and consulting.

"I called five different companies from the Angi list before finding Colonna Consulting. When I called and I explained my situation to Nick (the owner), I immediately knew he was the one. Despite his tight schedule, he managed to fit me in on the same day. We hired Colonna and Nick to inspect our residential structural foundation. Nick responded promptly to my requests and explained everything clearly during the inspection. He completed the report within the same day. Working with him was a pleasure, and his professionalism made the process smooth and stress-free. Thank you very much Nick, for your fast response."

May S on August 2025


Avatar for StructuralMD

StructuralMD

4.80(
133
)
Approved Pro

StructuralMD

4.80(
133
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
130 local quotes requested

StructuralMD is a structural engineering company that specializes in structural remediation, consulting, design and inspections as well as water management, mold remediation and basement dig-outs. It is a division of Lallygone, LLC, which was formed in 2008 by an structural engineer with extensive experience in civil engineering, structural remediation, and general construction.

"Yes, great professional service."

Will M on June 2024

StructuralMD is a structural engineering company that specializes in structural remediation, consulting, design and inspections as well as water management, mold remediation and basement dig-outs. It is a division of Lallygone, LLC, which was formed in 2008 by an structural engineer with extensive experience in civil engineering, structural remediation, and general construction.

"Yes, great professional service."

Will M on June 2024


"Gave us some great advise during our foundation inspection and saved us a bunch of money!"

Jason Y on March 2024

Structural Workshop, LLC,is a Structural Engineering and Building Consulting Firm. We are the leading provider of Residential Structural and Foundation Inspections and Repairs in New Jersey.

"Gave us some great advise during our foundation inspection and saved us a bunch of money!"

Jason Y on March 2024


Avatar for GTS Consultants

GTS Consultants

No reviews yet

GTS Consultants

No reviews yet
28 years of experience

GTS Consultants has earned a reputation as a Minority Owned and Operated business since 1997. GTS Consultants are known for: -being highly regarded-with warm referrals -client responsiveness -professional surveyors -providing excellent communication -quick turnaround -competitive prices We have gained the respect and confidence of our clients by providing technical excellence and quality services throughout New York, New Jersey and Pennsylvania. Our corporate headquarters is located in the beautiful city of Newark, New Jersey. We look forward to hearing from and working with you soon.

GTS Consultants has earned a reputation as a Minority Owned and Operated business since 1997. GTS Consultants are known for: -being highly regarded-with warm referrals -client responsiveness -professional surveyors -providing excellent communication -quick turnaround -competitive prices We have gained the respect and confidence of our clients by providing technical excellence and quality services throughout New York, New Jersey and Pennsylvania. Our corporate headquarters is located in the beautiful city of Newark, New Jersey. We look forward to hearing from and working with you soon.


Avatar for Hydroarmor Systems

Hydroarmor Systems

No reviews yet

Hydroarmor Systems

No reviews yet
31 years of experience

Basement waterproofing and foundation repairs. We are experts providing interior and exterior solutions for wet basement and buckled and bowed foundation repairs. learn more at hydroarmor.com

Basement waterproofing and foundation repairs. We are experts providing interior and exterior solutions for wet basement and buckled and bowed foundation repairs. learn more at hydroarmor.com


Avatar for American Eagle Waterproofing

American Eagle Waterproofing

5.00(
4
)

American Eagle Waterproofing

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024


Arch Design Studios LLC

No reviews yet

Arch Design Studios LLC

No reviews yet

Arch Design Studios proudly offers professional architectural design in the greater New Jersey area. We have 25 years of architectural experience working on most architectural projects, from designing residential homes to working on larger commercial architectural projects....

Arch Design Studios proudly offers professional architectural design in the greater New Jersey area. We have 25 years of architectural experience working on most architectural projects, from designing residential homes to working on larger commercial architectural projects....


Edwin A Reimon

No reviews yet

Edwin A Reimon

No reviews yet

Structural and Civil Engineer We specialize in structural design for home remodeling, additions, retaining walls, site plans for Municipal or County Approval, permits to the NJDOT Access Driveway and NJDEP (General and Individual permits). Presentation to Municipal and County Planning Board for the approval of new land development. Design of Storm Water Management and Soil Erosion Control Plans. Third Party Inspections of new construction, structural assessment of buildings.

Structural and Civil Engineer We specialize in structural design for home remodeling, additions, retaining walls, site plans for Municipal or County Approval, permits to the NJDOT Access Driveway and NJDEP (General and Individual permits). Presentation to Municipal and County Planning Board for the approval of new land development. Design of Storm Water Management and Soil Erosion Control Plans. Third Party Inspections of new construction, structural assessment of buildings.


Avatar for DRJP Associates LLC

DRJP Associates LLC

No reviews yet

DRJP Associates LLC

No reviews yet
13 years of experience

You will need a structural engineer when you are: 1. Building an extension 2. Modifying doors and windows 3. Fitting solar panels 4. Loft conversions 5. Removing or modifying walls 6. Re-supporting and strengthening floors 7. Notified that you have structural damage. We are a small team of 3 professionals who listen to your concerns and evaluates the best solution. We have been structural engineers for over 35 years and can provide individualized assistance with your problem.

You will need a structural engineer when you are: 1. Building an extension 2. Modifying doors and windows 3. Fitting solar panels 4. Loft conversions 5. Removing or modifying walls 6. Re-supporting and strengthening floors 7. Notified that you have structural damage. We are a small team of 3 professionals who listen to your concerns and evaluates the best solution. We have been structural engineers for over 35 years and can provide individualized assistance with your problem.


...
Showing 1-10 of 144
Structural Engineering questions, answered by experts

Structural engineers typically conduct inspections during a home sale or renovation, looking for signs of structural damage in various structures throughout the building, such as load-bearing walls, joists, beams, roofing trusses, foundations, and chimneys. Some of the warning signs that structural engineers check for include:

  • Dry rot

  • Infestation

  • Shifting or cracking foundations

  • Erosion

  • Water damage

  • Sagging, shifting, or damaged walls, ceilings, or roofing support

First, most contractors will have a structural engineer create a report and plan for your project to ensure it’s safe to cut into the load-bearing wall. The contractor will then excavate around the wall, if necessary, measure the opening—allowing for additional space to fit and level the door, and then cut the doorway out. They will likely install a steel lintel as a header over the door for support. Once the doorway is cut out, they’ll demolish the concrete using sledge hammers and masonry chisels, clean up the surrounding concrete, and seal around the door with masonry mortar. 

Costs depend on material choices, labor, and the extent of structural modifications.

Building codes for spiral staircases will vary by your location. Most local codes will specify minimum tread width, riser height, handrail requirements, and headroom. These standards help ensure safety and accessibility for all users. Always check local codes before you begin the installation to ensure compliance and avoid costly modifications or fines.

Yes, all states require structural engineers to carry the proper license, with specifics determined by each state. You can use Angi’s state licensing tool to confirm that the structural engineer you’re considering holds the required licensing to tackle your job. Hiring an unlicensed structural engineer will not only cause issues with permits but it could also lead to an unsafe building. The cost of a professional, licensed, and experienced engineer is well worth the investment.

The Mendham, NJ homeowners’ guide to structural engineering services

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