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Verified Reviews for Structural Engineering pros in Chelsea, MA

*The Angi rating for Structural Engineering companies in Chelsea, MA 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 Chelsea, MA 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 December 06, 2025

Find Structural engineers in Chelsea

Avatar for AJA Engineering, LLC

AJA Engineering, LLC

4.97(
110
)
•Approved Pro

AJA Engineering, LLC

4.97(
110
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2008 years of experience

Your Trusted Partner in Structural Engineering and Architecture Design Dear Customer, AJA Engineering LLC is your premier choice for all structural engineering and architectural services in the area. We understand that customer satisfaction is paramount to a successful business, and we take pride in having one of the highest satisfaction rates around. If you're seeking top-quality work at competitive prices, look no further than the professionals at AJA Engineering LLC. We are fully licensed and insured across several states, including Arizona, Florida, Georgia, Maine, Maryland, Massachusetts, North Carolina, Rhode Island, Texas, and Vermont. Please note that our verbal site consultation fee is $500. Feel free to reach out to me directly on my cell at 339-222-7594 or contact our office at 781-536-8624. Best regards, Aboud AJA Engineering LLC

"Our home sits above a huge retaining wall that was at risk of collapse. We had been misled by a fraudulent engineer’s letter claiming the previous repairs were done to spec when they were not. Many firms refused to take on the job due to the scale, tight access, and complexity. This was closer to a highway project than a residential one. AJA Engineering, especially Aboud and Amanda, stepped in when no one else would. They designed an eighty foot by twenty foot recon block wall, engineered carbon fiber reinforcement for a second wall, helped us hire the right contractors, and stayed with us every single day from start to finish. They adapted quickly when excavation uncovered new constraints, always focusing on safety, feasibility, and structural integrity. Their professionalism, expertise, and kindness were exceptional. We were so satisfied that we expanded their role into broader project management. We would hire them again in a heartbeat. Eleven out of ten. Highly recommended."

Vincent D on November 2025

Your Trusted Partner in Structural Engineering and Architecture Design Dear Customer, AJA Engineering LLC is your premier choice for all structural engineering and architectural services in the area. We understand that customer satisfaction is paramount to a successful business, and we take pride in having one of the highest satisfaction rates around. If you're seeking top-quality work at competitive prices, look no further than the professionals at AJA Engineering LLC. We are fully licensed and insured across several states, including Arizona, Florida, Georgia, Maine, Maryland, Massachusetts, North Carolina, Rhode Island, Texas, and Vermont. Please note that our verbal site consultation fee is $500. Feel free to reach out to me directly on my cell at 339-222-7594 or contact our office at 781-536-8624. Best regards, Aboud AJA Engineering LLC

"Our home sits above a huge retaining wall that was at risk of collapse. We had been misled by a fraudulent engineer’s letter claiming the previous repairs were done to spec when they were not. Many firms refused to take on the job due to the scale, tight access, and complexity. This was closer to a highway project than a residential one. AJA Engineering, especially Aboud and Amanda, stepped in when no one else would. They designed an eighty foot by twenty foot recon block wall, engineered carbon fiber reinforcement for a second wall, helped us hire the right contractors, and stayed with us every single day from start to finish. They adapted quickly when excavation uncovered new constraints, always focusing on safety, feasibility, and structural integrity. Their professionalism, expertise, and kindness were exceptional. We were so satisfied that we expanded their role into broader project management. We would hire them again in a heartbeat. Eleven out of ten. Highly recommended."

Vincent D on November 2025

Taddonio Engineering, LLC

4.87(
321
)
•Approved Pro

Taddonio Engineering, LLC

4.87(
321
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2016 years of experience

Taddonio Engineering, LLC is a locally owned and operated company, that values honesty, integrity and treats your home as if it were our own. You will find us to be competitively priced, while still 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. Give us a call today to get your project started!

"n/a"

Zhi L on November 2025

Taddonio Engineering, LLC is a locally owned and operated company, that values honesty, integrity and treats your home as if it were our own. You will find us to be competitively priced, while still 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. Give us a call today to get your project started!

"n/a"

Zhi L on November 2025

Berdi Consulting

4.79(
138
)
•Approved Pro

Berdi Consulting

4.79(
138
)
•Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1994 years of experience

Berdi Consulting provides structural engineering and architectural services in greater Boston area. We do comprehensive structural engineering analysis, architectural design, specifications and reporting.

"Stas was great, provessional, knowledgable. I highly recommend his work. His assistant Pavel, was not."

Matthew T on December 2024

Berdi Consulting provides structural engineering and architectural services in greater Boston area. We do comprehensive structural engineering analysis, architectural design, specifications and reporting.

"Stas was great, provessional, knowledgable. I highly recommend his work. His assistant Pavel, was not."

Matthew T on December 2024

Avatar for RENE MUGNIER ASSOCIATES, INC.

RENE MUGNIER ASSOCIATES, INC.

5.00(
3
)
•Approved Pro

RENE MUGNIER ASSOCIATES, INC.

5.00(
3
)
•Approved Pro
Super Service Award
2015 years of experience
Free onsite estimate

Rene Mugnier Associates, Inc. is a structural engineering firm based in Cambridge, MA that specializes in the investigation, forensic, and rehabilitation of residential and commercial houses and buildings. Founded in 1973 by Rene Mugnier, our company focuses on helping in the purchase, sale, and with how to fix your home. We also provide full structural services for the preparation of structural plans for all constructions (home and commercial). With our structural investigations we aim to educate you on the existing potential or future problems which could occur pertaining to the structure of any kind of building

"I am a contractor that does structural repairs. I get hired by homeowners to work on their property and am often hired after they’ve consulted with Rene Mugnier and Associates. The engineers at this offices are extremely well versed in what they do, thorough and available. I recommend them to customers and friends and the time and I look forward to working on sites they are managing. I know the work is going to be top notch and professional. "

Don I on September 2025

Rene Mugnier Associates, Inc. is a structural engineering firm based in Cambridge, MA that specializes in the investigation, forensic, and rehabilitation of residential and commercial houses and buildings. Founded in 1973 by Rene Mugnier, our company focuses on helping in the purchase, sale, and with how to fix your home. We also provide full structural services for the preparation of structural plans for all constructions (home and commercial). With our structural investigations we aim to educate you on the existing potential or future problems which could occur pertaining to the structure of any kind of building

"I am a contractor that does structural repairs. I get hired by homeowners to work on their property and am often hired after they’ve consulted with Rene Mugnier and Associates. The engineers at this offices are extremely well versed in what they do, thorough and available. I recommend them to customers and friends and the time and I look forward to working on sites they are managing. I know the work is going to be top notch and professional. "

Don I on September 2025

Flynn Roofing Co LLC

4.98(
53
)

Flynn Roofing Co LLC

4.98(
53
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Flynn Roofing Co. was established in 1997 by Stephen Flynn. We are a small family-operated company that specializes in residential and commercial roofing, both asphalt shingles and rubber roofing. Some of our non-residential customers have included a nursing home, motel, town hall building, condo associations, a Mason lodge, and multiple office buildings. Our goal is to provide our customers with outstanding customer service and complete satisfaction. We pledge to return every phone call in a timely manner and address every question completely. We have an extensive listing of references showing our satisfied customers. We are not satisfied with your job until you are satisfied. We serve the Greater Boston area, the South Shore and Metro West. We are fully insured, including workers compensation and we use absolutely NO subcontractors, which is almost unheard of in this industry. The company you hire to do your job will be the company that arrives at your home. We pledge to install your roof as quickly as possible, while maintaining our strict quality standards. We work on one roof at a time and will be at your home daily (weather permitting) until your roof is completed. We work in an efficient and orderly manner, leaving your yard as we found it at the start of the job (some customers have said even better!). Flynn Roofing Co. is a Certainteed Select Shingle Roofer company, enabling us to offer our customers who choose Certainteed shingles a five-star warranty. This warranty includes a 15 or 20 year workmanship guarantee, along with the standard materials warranty. We purchase this warranty for ALL of our customers. We are also a GAF Authorized Installer. We are a proud member of the Northeast Roofing Contractors Association and the Better Business Bureau. We have had 0 complaints reported to the Better Business Bureau since we joined on 1/4/05.

"What I thought was going to be a painful process turned into a pleasant experience. Mr. Flynn was very timely in giving me a quote, supplying information about the materials, paperwork such as insurance certificate , and not subbing out the job. Mr. Flynn's crew was here at 7:50 AM. Stopped for lunch at 11:30 returned to work promptly at 12:30 and was finished with the job by 3. They were all very professional and courteous. The clean up was impeccable. Mr. Flynn and his crew know how to run a business. Kudos to Robyn too for all her help. Great Company!"

Barabara T on January 2021

Flynn Roofing Co. was established in 1997 by Stephen Flynn. We are a small family-operated company that specializes in residential and commercial roofing, both asphalt shingles and rubber roofing. Some of our non-residential customers have included a nursing home, motel, town hall building, condo associations, a Mason lodge, and multiple office buildings. Our goal is to provide our customers with outstanding customer service and complete satisfaction. We pledge to return every phone call in a timely manner and address every question completely. We have an extensive listing of references showing our satisfied customers. We are not satisfied with your job until you are satisfied. We serve the Greater Boston area, the South Shore and Metro West. We are fully insured, including workers compensation and we use absolutely NO subcontractors, which is almost unheard of in this industry. The company you hire to do your job will be the company that arrives at your home. We pledge to install your roof as quickly as possible, while maintaining our strict quality standards. We work on one roof at a time and will be at your home daily (weather permitting) until your roof is completed. We work in an efficient and orderly manner, leaving your yard as we found it at the start of the job (some customers have said even better!). Flynn Roofing Co. is a Certainteed Select Shingle Roofer company, enabling us to offer our customers who choose Certainteed shingles a five-star warranty. This warranty includes a 15 or 20 year workmanship guarantee, along with the standard materials warranty. We purchase this warranty for ALL of our customers. We are also a GAF Authorized Installer. We are a proud member of the Northeast Roofing Contractors Association and the Better Business Bureau. We have had 0 complaints reported to the Better Business Bureau since we joined on 1/4/05.

"What I thought was going to be a painful process turned into a pleasant experience. Mr. Flynn was very timely in giving me a quote, supplying information about the materials, paperwork such as insurance certificate , and not subbing out the job. Mr. Flynn's crew was here at 7:50 AM. Stopped for lunch at 11:30 returned to work promptly at 12:30 and was finished with the job by 3. They were all very professional and courteous. The clean up was impeccable. Mr. Flynn and his crew know how to run a business. Kudos to Robyn too for all her help. Great Company!"

Barabara T on January 2021

Avatar for Marcellos Design & Builders

Marcellos Design & Builders

4.95(
150
)

Marcellos Design & Builders

4.95(
150
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Founded in 2001, Marcellos based in the metro west of Greater Boston is general contractor specializing in residential/commercial construction and renovation. As a home/building owner, developer or architect, you realize the importance of dedicated customer service, competitive rates and, most importantly, high quality workmanship. Because Marcellos is a medium size company, we can offer personal attention to every project, as well as reasonable project cost. To accomplish your project, we will employ a professional staff of supervisors, carpenters, laborers, equipment operators and qualified subcontractors. Each project is completed to exact specifications on time and on budget.For estimates please visit our website: www.marcellosdb.com

"My Wife and I were so pleased with the results, Marcelo’s design is the place you want to use to get any kind of renovations, our kitchen looks amazing and we now have more space."

Ruan F on April 2024

Founded in 2001, Marcellos based in the metro west of Greater Boston is general contractor specializing in residential/commercial construction and renovation. As a home/building owner, developer or architect, you realize the importance of dedicated customer service, competitive rates and, most importantly, high quality workmanship. Because Marcellos is a medium size company, we can offer personal attention to every project, as well as reasonable project cost. To accomplish your project, we will employ a professional staff of supervisors, carpenters, laborers, equipment operators and qualified subcontractors. Each project is completed to exact specifications on time and on budget.For estimates please visit our website: www.marcellosdb.com

"My Wife and I were so pleased with the results, Marcelo’s design is the place you want to use to get any kind of renovations, our kitchen looks amazing and we now have more space."

Ruan F on April 2024

Lenihan Construction

5.00(
18
)

Lenihan Construction

5.00(
18
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Lenihan Construction is your go-to general contractor in Boston for all your remodeling needs. From kitchens and bathrooms to porches and decks, we have the expertise to bring your vision to life. Contact us today for top-notch craftsmanship and exceptional service.

"John was great. He was prompt, efficient, fair, and highly knowledgeable about carpentry."

Laura A on July 2020

Lenihan Construction is your go-to general contractor in Boston for all your remodeling needs. From kitchens and bathrooms to porches and decks, we have the expertise to bring your vision to life. Contact us today for top-notch craftsmanship and exceptional service.

"John was great. He was prompt, efficient, fair, and highly knowledgeable about carpentry."

Laura A on July 2020

Stealth Construction

4.85(
27
)

Stealth Construction

4.85(
27
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

At Stealth Construction Inc., we've built our livelihoods on remodeling people's homes. From the simple to the lavish, we've experienced it all and we can help you every step of the way. No job is too small or too big for our knowledgeable crews. We've happily done it all for 12 years now!

At Stealth Construction Inc., we've built our livelihoods on remodeling people's homes. From the simple to the lavish, we've experienced it all and we can help you every step of the way. No job is too small or too big for our knowledgeable crews. We've happily done it all for 12 years now!

Cowen Associates - Consulting Structural Engineers

4.52(
27
)

Cowen Associates - Consulting Structural Engineers

4.52(
27
)
Customers say: Super punctual
1974 years of experience

We are Consultants specializing in the Structural Design of Buildings and Special Structures. Our principal clients are Architects, Contractors, Developers, and Building Owners. Additional DBA - Fred V Cowen. Cost is determined by the job. We're Licensed or Registered Professional Structural Engineers in the following States: MA,NY,Illinois(SE),DC,MD,MO,VT,NH,RI,NJ,VA,FL,KY,PA,OH,OK,CT

"DO NOT HIRE. If you're looking for a misogynist old man to tell you he did his job when he didn't hire Cowen Associates. The worst customer service I have ever experienced. Fred, the owner refused to give me measurements that he claims were written in his drawing and then called me to tell me it's not his job to give me the measurements. He charged me $200 per hour to then tell me I shouldn't be the general contractor on my own job and that I don't know anything."

Sarah M on August 2022

We are Consultants specializing in the Structural Design of Buildings and Special Structures. Our principal clients are Architects, Contractors, Developers, and Building Owners. Additional DBA - Fred V Cowen. Cost is determined by the job. We're Licensed or Registered Professional Structural Engineers in the following States: MA,NY,Illinois(SE),DC,MD,MO,VT,NH,RI,NJ,VA,FL,KY,PA,OH,OK,CT

"DO NOT HIRE. If you're looking for a misogynist old man to tell you he did his job when he didn't hire Cowen Associates. The worst customer service I have ever experienced. Fred, the owner refused to give me measurements that he claims were written in his drawing and then called me to tell me it's not his job to give me the measurements. He charged me $200 per hour to then tell me I shouldn't be the general contractor on my own job and that I don't know anything."

Sarah M on August 2022

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Structural Engineering questions, answered by experts

Most lenders and homeowner’s insurance companies don’t mandate a structural engineer’s inspection, so in most cases, it’s not required. However, it’s a good idea to have one done anyway to ensure you know what you’re buying. You can use the report to carry out repairs after closing or even to negotiate the sale price before closing.

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.

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

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 costs depend on the type of wood, labor, roofing material, permits, and whether additional storage or enclosed walls are included.

The Chelsea, MA homeowners’ guide to structural engineering services

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

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