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*The Angi rating for Structural Engineering companies in Concord, NH 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 Concord, NH 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 26, 2025
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Flynn Roofing Co LLC
Flynn Roofing Co LLC
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

Marcellos Design & Builders
Marcellos Design & Builders
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
Lenihan Construction
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
LALIBERTE CONSTRUCTION ASSOCIATES INC
LALIBERTE CONSTRUCTION ASSOCIATES INC
Commercial / Residential Foundation Repair House Jacking / Leveling. Structural Repair Specialist Referrals Made When Necessary.
Commercial / Residential Foundation Repair House Jacking / Leveling. Structural Repair Specialist Referrals Made When Necessary.

Bertola Custom Homes & Remodeling
Bertola Custom Homes & Remodeling
Bertola Custom Homes is very serious about customer satisfaction! We are a medium sized construction company. We can help with your, kitchen, bathrooms and basement renovations and also to designing and building your dream home from the ground up. We will work with every budget, making high-end craftsmanship affordable. "My company can take care of every phase of your project and give you the peace of mind that you are looking for out of the construction process." Joe Bertola CEO/President of Bertola Custom Homes.
"Joe and his team did a superb job of renovating my bathroom in a 1929 vintage building in Cambridge, MA. The final result is modern and highly functional while looking beautiful in an older building. Joe helped me pick materials and finishes that I would not have discovered on my own. He and his team were respectful of my home making sure that there was as little disruption as possible and wore masks and maintained distance at all times. When I miscommunicated with a house cleaner near the end of the project, Joe did much of the cleaning himself. Above and beyond. Last but not least, the work was finished on time. Amazing. Leslie D."
leslie d on March 2021
Bertola Custom Homes is very serious about customer satisfaction! We are a medium sized construction company. We can help with your, kitchen, bathrooms and basement renovations and also to designing and building your dream home from the ground up. We will work with every budget, making high-end craftsmanship affordable. "My company can take care of every phase of your project and give you the peace of mind that you are looking for out of the construction process." Joe Bertola CEO/President of Bertola Custom Homes.
"Joe and his team did a superb job of renovating my bathroom in a 1929 vintage building in Cambridge, MA. The final result is modern and highly functional while looking beautiful in an older building. Joe helped me pick materials and finishes that I would not have discovered on my own. He and his team were respectful of my home making sure that there was as little disruption as possible and wore masks and maintained distance at all times. When I miscommunicated with a house cleaner near the end of the project, Joe did much of the cleaning himself. Above and beyond. Last but not least, the work was finished on time. Amazing. Leslie D."
leslie d on March 2021
Cowen Associates - Consulting Structural Engineers
Cowen Associates - Consulting Structural Engineers
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
Arcaya remodeling
Arcaya remodeling
General contractor, mason,carpenter,hardscaping,cabinetry. Additional Email - [email protected] .
"Consumers beware! We were swindled by this contractor. After paying this contractor a substantial amount of money, he abandoned our job. He abandoned our job on November 21, 2019, leaving us with a house with no electricity, no plumbing, no kitchen, missing windows, unfinished stairs, unfinished floors, unfinished tiling, no baseboards, no interior doors, no window trims, unfinished deck, unfinished roof, unfinished balcony, an unfinished basement with a huge hole in the basement concrete floor, unfinished siding, unpaid subcontractors, construction debris, and an unfinished driveway that he also damaged. Although we paid him according to our contract, he repeatedly asked that we pay for items he was responsible for, as advance payments to him. He stated we could subtract any advance payments provided to him from the "end of work payment". Desperate to move the work along, we stupidly agreed to several of these requests, which included advance payments to him, advance payments in the form of purchasing construction materials that he was responsible to purchase, advance payments to pay subcontractors that he was responsible to pay, we even paid for the removal of construction debris. The last check given to him was an advance payment of $6000.00, which he requested to purchase materials to help complete our job. Feeling desperate to move the work along, we once again agreed and paid him. In fact, when asking for this money, he sent his entire crew to work on our home, telling us he was prepared to have his crew focus solely on completing our job, so we can finally move back into our home. However, as soon as the check cleared, the crew diminished, and he never provided the materials, a few weeks later he abandoned the job. It was our dream to renovate our home, and we worked hard to be able to finally do the renovation. He turned our dream into a complete nightmare."
Mario S on February 2020
General contractor, mason,carpenter,hardscaping,cabinetry. Additional Email - [email protected] .
"Consumers beware! We were swindled by this contractor. After paying this contractor a substantial amount of money, he abandoned our job. He abandoned our job on November 21, 2019, leaving us with a house with no electricity, no plumbing, no kitchen, missing windows, unfinished stairs, unfinished floors, unfinished tiling, no baseboards, no interior doors, no window trims, unfinished deck, unfinished roof, unfinished balcony, an unfinished basement with a huge hole in the basement concrete floor, unfinished siding, unpaid subcontractors, construction debris, and an unfinished driveway that he also damaged. Although we paid him according to our contract, he repeatedly asked that we pay for items he was responsible for, as advance payments to him. He stated we could subtract any advance payments provided to him from the "end of work payment". Desperate to move the work along, we stupidly agreed to several of these requests, which included advance payments to him, advance payments in the form of purchasing construction materials that he was responsible to purchase, advance payments to pay subcontractors that he was responsible to pay, we even paid for the removal of construction debris. The last check given to him was an advance payment of $6000.00, which he requested to purchase materials to help complete our job. Feeling desperate to move the work along, we once again agreed and paid him. In fact, when asking for this money, he sent his entire crew to work on our home, telling us he was prepared to have his crew focus solely on completing our job, so we can finally move back into our home. However, as soon as the check cleared, the crew diminished, and he never provided the materials, a few weeks later he abandoned the job. It was our dream to renovate our home, and we worked hard to be able to finally do the renovation. He turned our dream into a complete nightmare."
Mario S on February 2020

Team Engineering
Team Engineering
Additional DBAs - Team Engineer NH PLLC, Additional email - [email protected]. Additional contact name - John P Turner.
Additional DBAs - Team Engineer NH PLLC, Additional email - [email protected]. Additional contact name - John P Turner.

Penn Construction Group, Inc
Penn Construction Group, Inc
A licensed general contractor with over 30 years of experience in all aspects of commercial & residential construction. Services available in MA & the west coast of FL.
A licensed general contractor with over 30 years of experience in all aspects of commercial & residential construction. Services available in MA & the west coast of FL.
ROOME & GUARRACINO LLC
ROOME & GUARRACINO LLC
ROOME & GUARRACINO LLC is a 10 year structural engineering consulting firm serving all of New England.
ROOME & GUARRACINO LLC is a 10 year structural engineering consulting firm serving all of New England.
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