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TRUSTED BY MENDHAM, NJ HOMEOWNERS

  • Average homeowner rating star icon4.6
    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
17 years of experience

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 Domus Company, LLC

Domus Company, LLC

5.00(
5
)
Approved Pro

Domus Company, LLC

5.00(
5
)
Approved Pro
3 years of experience
Free onsite estimate

Domus Company, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Job was done correctly and the city accepted the drawings without revision. very efficient service."

Yaset E on September 2025

Domus Company, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Job was done correctly and the city accepted the drawings without revision. very efficient service."

Yaset E on September 2025


VERIDIAN ENGINEERING LLC

5.00(
2
)
Approved Pro

VERIDIAN ENGINEERING LLC

5.00(
2
)
Approved Pro
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!


Blackstone Engineering, PLLC

New on AngiNew on Angi
Approved Pro

Blackstone Engineering, PLLC

New on AngiNew on Angi
Approved Pro
1 years of experience
Free onsite estimate

We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.


Avatar for United Waterproofing Corp

United Waterproofing Corp

4.93(
220
)

United Waterproofing Corp

4.93(
220
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

United Waterproofing is a basement and foundation repair company based out of Dover-Rockaway NJ area that has been proudly serving homeowners for nearly 20 years! Our "hands on" experience, commitment and God’s grace has lead us to be the best and most reviewed waterproofing company in the state. Winner of the Angie’s List SSA from 2010 to 2018 with over 250 positive reviews. At United our mission is simple: to provide superior products and services to all our customers offering a 100% Lifetime Transferable Warranty. We do not use sub-contractors; you work with us the entire time! Financing options available and references available as well. We invite you to join the United Waterproofing family, we will not let you down!

"Excellent service; very professional. Since the waterproofing was done, have not had any problems with water in our basement."

Melinda M on April 2022

United Waterproofing is a basement and foundation repair company based out of Dover-Rockaway NJ area that has been proudly serving homeowners for nearly 20 years! Our "hands on" experience, commitment and God’s grace has lead us to be the best and most reviewed waterproofing company in the state. Winner of the Angie’s List SSA from 2010 to 2018 with over 250 positive reviews. At United our mission is simple: to provide superior products and services to all our customers offering a 100% Lifetime Transferable Warranty. We do not use sub-contractors; you work with us the entire time! Financing options available and references available as well. We invite you to join the United Waterproofing family, we will not let you down!

"Excellent service; very professional. Since the waterproofing was done, have not had any problems with water in our basement."

Melinda M on April 2022


Avatar for Shupenko Engineering Inc

Shupenko Engineering Inc

4.98(
52
)

Shupenko Engineering Inc

4.98(
52
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Home inspections can help you buy or sell your home with confidence. As trained professionals and engineers, we have has seen it all and we'll provide invaluable help in turning you into a knowledgeable consumer. STRUCTURAL ISSUE? No need to hire a separate engineer to solve the problem. All of our inspectors are licensed professional engineers. We also provide plumbing, mechanical and structural systems design. Additional e-mail - [email protected]

"I should have done this review long ago. Tony is the best at inspecting houses and I used his services twice. I wish he had been available when the third house I bid on and purchased was inspected. He would have saved me a lot of trouble and headaches unlike the fraudulent House Masters. Please do yourself a favor and contract an engineer such as Tony. You will thank yourself for it down the line. I recommend their services 100%."

Luis Rene P on February 2019

Home inspections can help you buy or sell your home with confidence. As trained professionals and engineers, we have has seen it all and we'll provide invaluable help in turning you into a knowledgeable consumer. STRUCTURAL ISSUE? No need to hire a separate engineer to solve the problem. All of our inspectors are licensed professional engineers. We also provide plumbing, mechanical and structural systems design. Additional e-mail - [email protected]

"I should have done this review long ago. Tony is the best at inspecting houses and I used his services twice. I wish he had been available when the third house I bid on and purchased was inspected. He would have saved me a lot of trouble and headaches unlike the fraudulent House Masters. Please do yourself a favor and contract an engineer such as Tony. You will thank yourself for it down the line. I recommend their services 100%."

Luis Rene P on February 2019


Avatar for Alfred And Sons Construction LLC.

Alfred And Sons Construction LLC.

4.95(
19
)

Alfred And Sons Construction LLC.

4.95(
19
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Alfred and Sons Construction has been dedicated to customer satisfaction for over 25 years. Our goal is to ensure our customers successfully completed projects, every time. Whether minor renovations, or large projects, our work always meets highest quality of building and intended use. Lead by experienced professionals in residential construction. Alfred and Sons maintains a crews of talented craftsmen. Proficient in finish carpentry, framing, cabinetry, hardware, and site management, our quality control measures to fit your budget.

"Wes and his brother Mick are absolutely the best contractors! They have been in the business for many years and are extraordinarily skiiled in home renovations. They are an absolute pleasure to deal with. They are honest, trustwothy, very pleasant gentlmen who take great pride in their work. They are no nonsense, starting at 8AM everyday and working a solid 10 plus hour days. They delivered everything they promised and more. My wife and I could not have been more pleased with the quality of the construction, having converted a screened in porch to a three season room in no time. We have done many construction projects over the years from additions, to redoing kitchens and bathrooms to building a custom home. Based on on all of our experience, in our opinion, you would be hard pressed to find a better contractor to deal with than Alfred and Sons Construction. You get your moneys worth and a whole lot more! We highly recommend them!"

guy t on April 2023

Alfred and Sons Construction has been dedicated to customer satisfaction for over 25 years. Our goal is to ensure our customers successfully completed projects, every time. Whether minor renovations, or large projects, our work always meets highest quality of building and intended use. Lead by experienced professionals in residential construction. Alfred and Sons maintains a crews of talented craftsmen. Proficient in finish carpentry, framing, cabinetry, hardware, and site management, our quality control measures to fit your budget.

"Wes and his brother Mick are absolutely the best contractors! They have been in the business for many years and are extraordinarily skiiled in home renovations. They are an absolute pleasure to deal with. They are honest, trustwothy, very pleasant gentlmen who take great pride in their work. They are no nonsense, starting at 8AM everyday and working a solid 10 plus hour days. They delivered everything they promised and more. My wife and I could not have been more pleased with the quality of the construction, having converted a screened in porch to a three season room in no time. We have done many construction projects over the years from additions, to redoing kitchens and bathrooms to building a custom home. Based on on all of our experience, in our opinion, you would be hard pressed to find a better contractor to deal with than Alfred and Sons Construction. You get your moneys worth and a whole lot more! We highly recommend them!"

guy t on April 2023


Avatar for Down Under Waterproofing & Foundation Repair

Down Under Waterproofing & Foundation Repair

4.97(
39
)

Down Under Waterproofing & Foundation Repair

4.97(
39
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Down Under Waterproofing, Inc. is a family-owned business that has been providing basement waterproofing, foundation and structural repair, basement finishing, stucco, retaining walls and masonry services. to the New Jersey and Eastern Pennsylvania areas since 2006. As a fully qualified, licensed and insured waterproofing and foundation repair contractor with over 2000 satisfied customers, we enjoy an excellent reputation and employ only the most effective and widely accepted methods in the industry.

"Walt, Max, and the whole crew were absolutely amazing. This was a HUGE project. We basically had no foundation on the back/ side of our house and the 2nd floor overhang was poorly supported. Prior to us purchasing the house the previous owner added a very large addition on top of a very old and poorly constructed “house” . The inspection at purchase did not uncover the issues that we found about two years after when all of the cosmetic touch ups wore off. Walt’s crew ( Supervised by Max) replaced the foundation wall , added piers under the house, replaced all of the floor joists along with new piers, beams, and headers on the 40ft span at the back of the house. This is just some of the larger items because I would be here forever if I listed everything they had to do. Walt kept us informed during the whole project. From start to finish we were on the same page. The house had so many hidden issues but the crew worked through all of it. The price was very reasonable and less then all of the other estimates from competitors. We didn’t have a bunch of surprise increases along the way. He didn’t try to scare us or sell us anything we didn’t need. They are honest and reliable. The results were amazing and so far beyond our expectations !!! They are all so talented. We couldn’t be happier with our choice of contractors!! They have been done for almost a week and we miss them being here already. I will recommend them to everyone."

Robin M on June 2021

Down Under Waterproofing, Inc. is a family-owned business that has been providing basement waterproofing, foundation and structural repair, basement finishing, stucco, retaining walls and masonry services. to the New Jersey and Eastern Pennsylvania areas since 2006. As a fully qualified, licensed and insured waterproofing and foundation repair contractor with over 2000 satisfied customers, we enjoy an excellent reputation and employ only the most effective and widely accepted methods in the industry.

"Walt, Max, and the whole crew were absolutely amazing. This was a HUGE project. We basically had no foundation on the back/ side of our house and the 2nd floor overhang was poorly supported. Prior to us purchasing the house the previous owner added a very large addition on top of a very old and poorly constructed “house” . The inspection at purchase did not uncover the issues that we found about two years after when all of the cosmetic touch ups wore off. Walt’s crew ( Supervised by Max) replaced the foundation wall , added piers under the house, replaced all of the floor joists along with new piers, beams, and headers on the 40ft span at the back of the house. This is just some of the larger items because I would be here forever if I listed everything they had to do. Walt kept us informed during the whole project. From start to finish we were on the same page. The house had so many hidden issues but the crew worked through all of it. The price was very reasonable and less then all of the other estimates from competitors. We didn’t have a bunch of surprise increases along the way. He didn’t try to scare us or sell us anything we didn’t need. They are honest and reliable. The results were amazing and so far beyond our expectations !!! They are all so talented. We couldn’t be happier with our choice of contractors!! They have been done for almost a week and we miss them being here already. I will recommend them to everyone."

Robin M on June 2021

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Structural Engineering questions, answered by experts

If your home's foundation was damaged due to shifting soil, the same problem will reoccur unless you stabilize the structure by adding posts in the bedrock.

The easiest way to tell if a wall is load bearing is to check if it’s an exterior wall or if it runs perpendicular to the joists above and below it (or parallel to beams). Exterior walls are almost always load-bearing, and walls that run under beams or parallel to them are also usually load-bearing. There are exceptions to these rules, and walls that don’t fit into these categories can still be load-bearing. If you’re unsure, hire a structural engineer to look at your home to assess whether or not the wall is structural.

A construction manager is particularly useful in the case of a large-scale build with custom design elements, so it’s usually worth it to hire one. They can help manage your budget, maintain quality control, oversee timelines, and navigate unexpected hurdles. While construction managers are pricey, they can actually save money in the long run by identifying cost-saving opportunities and ensuring the project stays within budget.

Yes, unresolved damage can decrease property integrity and market value.

If you intend to do the majority of the work yourself, you can pay to hire an architect or a structural engineer to ensure your home remains structurally sound. They can help with the planning to make sure everything is up to code and safe for your family. On the other hand, if you’re not sure your home will be completely safe when you’ve completed the project, let a pro do the job.

The Mendham, NJ homeowners’ guide to structural engineering services

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