Serving Washington DC, DC and surrounding areas

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Serving Washington DC, DC and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2015
Emergency services offered
Small jobs welcome
"Omid provided a very detailed report on our structural home assessment. He addressed our concerns and provided suggestions on how to best manage them. Omid provides a very professional service and is very welcoming to all questions one may have. His attention to detail and thorough explanations kept my wife and I well informed. We’re very happy with his exceptional service."
Serving Washington DC, DC and surrounding areas
Angi Approved
In business since 2011
Credit card accepted
Offers commercial services
"Cyrus was very professional in helping to get my project completed."

Serving Washington DC, DC and surrounding areas
Angi Approved
In business since 2015
Emergency services offered
Small jobs welcome
"I had a great experience working with A & A Structures LLC for the structural engineering work on my home renovation in Bethesda. They were easy to work with, extremely fast, and delivered permit-ready documents that were clearly tailored for Montgomery County DPS—right down to the correct file naming conventions, which matters more than people realize. When the county requested minor revisions, A&A responded immediately, made the updates without hesitation, and even worked directly with my developer to clarify requirements. All of this was handled under the original fee, which I felt was an excellent value. Professional, responsive, and clearly experienced with Montgomery County’s approval process—I would absolutely recommend them and would use them again without hesitation."

Serving Washington DC, DC and surrounding areas




Serving Washington DC, DC and surrounding areas
Angi Approved
In business since 2017
Customers say: Quick response
"Doug was extremely professional, courteous and provided a detailed and timely analysis report for my use. When I called his company he listened carefully, set up an appointment for the next day and arrived on time. I would definitely hire him again and will recommend him to my neighbors and anyone else."
Serving Washington DC, DC and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2014
Emergency services offered
Small jobs welcome
"Working with Zign Consulting has been the bright spot in an otherwise complex construction project. From the beginning, Zign Consulting was everything you hope for: honest, direct, highly capable, and urgent. After months of delays and complications caused by a previous architect, Zign Consulting stepped in and immediately brought clarity and direction. They swiftly got our plans completed and approved by DCRA—something the original architect struggled with for nearly a year. Their communication was transparent, their timelines were accurate, and their professionalism was unmatched. If you're looking for an architectural consultant who will advocate for your project and get things done the right way, Zign Consulting is the firm to hire. I can't recommend them enough."

Serving Washington DC, DC and surrounding areas
Angi Approved
Free estimates
Small jobs welcome
Offers commercial services
I am a licensed Professional Engineer providing structural engineering services for residential and small commercial projects. Much of my work involves helping homeowners and contractors move renovation and construction projects through the permit process by providing structural calculations, drawings, and engineering evaluations where required.\n\nTypical projects include load-bearing wall removal, beam and header sizing, structural design for additions and decks, and evaluations of foundation or framing concerns. I also provide engineering letters and reports often requested by building departments, contractors, or home buyers during real estate transactions.\n\nMy goal is to provide clear, practical engineering that helps a project move forward safely and efficiently. I work directly with homeowners, contractors, and architects to understand the project and develop straightforward structural solutions that meet building code requirements.





+3

Serving Washington DC, DC and surrounding areas
Free estimates
Warranties offered
"We needed a structural engineer to inspect the foundation of a home that we are purchasing and were recommended to contact Kemp. We are so glad that we did. Greg provided first class service. He was thorough and took the time to explain each step that he was taking, the purpose behind it, the potential results and what each could mean, and finally the actual results. He also took the time to educate us on some of the basic indicators of good and deficient or damaged home foundations. He was very personable and is great at making complex information simple enough for novices to understand. He also provided the inspection report almost immediately. We highly recommend Greg and his company’s services."

Serving Washington DC, DC and surrounding areas
In business since 2001
Free estimates
Emergency services offered
"Victor Bernard and their team took on a complex double bathroom renovation project in a 100 year old row home and did excellent work addressing the many unexpected challenges as we proceeded with demo, including rebuilding floor joists inappropriately damaged from a past renovation. While this of course made for a much longer project than planned, the quality of work was excellent and we love our new bathrooms."
The Washington DC, DC homeowners’ guide to engineer structurals
From average costs to expert advice, get all the answers you need to get your job done.

Explore how much it costs to replace floor joists based on factors such as the extent of damage, number of boards, and local labor rates.

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Learn who checks load-bearing walls, what professionals to hire, and cost details—learn how to ensure your home’s structural safety.

Learn everything you need to know about structural engineers, what they do, and how to find residential services you can trust in this guide.
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