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TRUSTED BY WASHINGTON, DC HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon158
    Verified structural engineering services reviews

Top-Rated Structural engineers in Washington - Updated Nov 2026

Kamran Ohi P E
4.7(
316
)
Engineer - Structural

Serving Washington, DC and surrounding areas

Approved

In business since 1978

Emergency services offered

Small jobs welcome

"Responsive and thorough. I needed sizing calculations. Kamran called me to get more details about my project and determined he could help me right there over the phone. He ran several calculations and talked me through various options. we were done and I had the analysis in my email in 10 minutes. brilliant experience. I will definitely work with him again!"
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for OGV Structural Engineering, LLC
OGV Structural Engineering, LLC
5.0(
31
)
Engineer - Structural

Serving Washington, DC and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Small jobs welcome

"Having major remodel on lower level. Contractor tried to rope me into major work (and project delay) suggesting normal cracks on cinder block walls indicated a foundation issue. When I pushed back, he put project on hold stating I needed a structural engineer to certify. I called the first two people on home advisor locally and Omid got back to me in 2-3 min, was at my house within an hour and delivered a certified report within 3-4 hours. He listened to the situation and spoke with my contractor to hear his assessment before beginning his assessment measures. He directly pushed back on what contractor stated and provided simple solution for one crack that was more than hairline. Report was meticulous, he spoke with contractor directly, and saved this project. It was more affordable than what was suggested on average costs. While I couldn’t divorce from the unethical contractor mid project—I would have been stuck with no out without the work of Omid!"
Response time1 day
11 neighbors recently requested a quote
Recommended by34%of homeowners
Avatar for A & A Structures LLC
A & A Structures LLC
5.0(
14
)
Engineer - Structural

Serving Washington, DC and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"We have several disconcerting cracks on the walls, around window frames, and around the fireplace, both horizontal and vertical, and we wanted a structural engineer to evaluate. A&A Structures responded extremely promptly and the engineer, Yahya Alibadi, agreed to come the same day. He was a pleasure to deal withâ extremely knowledgeable, friendly, and down to earth, patiently answering all our questions, no matter how tangential.. He spent more than two ours inspecting the house inside and out, explained what he saw, the options for fixing the problem, and followed it up with a long, thorough, and clear report that we will share with the contractor who will be doing the repairs. We later had an email exchange and phone conversations to clarify some points further, and he continued to be extremely helpful. We are planning some construction work on the house soon, and we will definitely hire A&A again. Highly recommend."
Response time4 hrs
Response rate98%
2 neighbors recently requested a quote
Avatar for Structurist Consulting Engineers
Structurist Consulting Engineers
4.7(
22
)
Engineer - Structural

Serving Washington, DC and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I would highly recommend working with Structurist Consulting. They were responsive, readily available, gave more time than anticipated on a complicated structural examination and most importantly, really nice."
Stair and foundations
Deck Plan
Segmented Retaining wall with Geogrids
Custom Build home
Response time4 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bitarchitects
Bitarchitects
5.0(
16
)
Architect

Serving Washington, DC and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"We hired Bitarchitects for a major renovation of our home and were extremely pleased with the experience. It was a substantial investment, and we valued the architects' expertise and guidance throughout the project. From the beginning, we had the opportunity to speak with several professionals, hear different perspectives, and make informed decisions. We worked closely with the architectural and design teams, followed by the structural and mechanical engineers, before moving into permitting. Although permitting presented some challenges, the team remained engaged and continued working with us until we successfully completed the process. Bitarchitects then helped us navigate construction and coordinate the different contractors, subcontractors, and agreements involved. Having one integrated team guide us step by step made a complex project much more manageable. We appreciated their knowledge, persistence, and continued support, and we highly recommend Bitarchitects."
Existing Cabin
1012 HANDY AVE
Leonard Remodel
HOFFMAN NEW RESIDENCE
The Mil Corporation

+1065

Response time2 days
Response rate94%
7 neighbors recently requested a quote
Double-D Consulting Engineers
4.7(
18
)
Engineer - Structural

Serving Washington, DC and surrounding areas

Approved

In business since 2017

Customers say: Quick response

"We hired Doug to check out some walls we wanted to remove but weren't sure whether they were load-bearing. He came by, took a look, opened up the wall in a few places, and had the signed and stamped engineer letter to us very shortly after that. Professional, responsive, and friendly service, we would use again."
Response time6 hrs
Response rate91%
Recommended by100%of homeowners
Avatar for Willoughby Design, LLC
Willoughby Design, LLC
5.0(
14
)
Architect

Serving Washington, DC and surrounding areas

Approved

In business since 2013

Free estimates

Offers commercial services

"We have been working with Todd Willoughby since early in 2018. We had purchased a piece of land along the Chesapeake Bay and wanted to build a small but thoughtfully designed contemporary garden cottage for our retirement. After speaking with a number of architects we chose Todd and we have been very happy with that decision. Over several months, we worked have closely with him through the several design phases, culminating in a very complete set of construction documents, that we are now using for bidding. Throughout the process, we have found Todd to be personable, smart, perceptive and creative. He has been able to translate our ideas into working drawings that one of the contractors noted was called the most detailed he has ever seen. Todd has captured our vision for an environmentally friendly house with solar and rainwater harvesting. We have met with him many times talk through the many details, choices, and constraints you inevitably face. He has done all the coordination needed with the other specialties the engineers, surveyor, and solar energy firm. Having enjoyed this first part of the collaboration, we are hiring Todd to help us through the bid evaluations and construction admin phases. The best recommendation would be our actual house, but until we get there we can say Todd has done an excellent and professional job getting us this far, and we look forward to working with him through to a completed project."
Eagle's Nest
Eagle's Nest
Eagle's Nest
Eagle's Nest
Eagle's Nest

+12

Response time2 days
7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Willoughby Design, LLC
Willoughby Design, LLC
5.0(
14
)
Architect

Serving Washington, DC and surrounding areas

Approved

In business since 2013

Free estimates

Offers commercial services

Quality, affordable architectural design services for residential and small commercial projects with particular interest in retreat homes and sustainable design. \n \nMission Statement: "Enhancing Life by Design"

Eagles Nest
Eagles Nest
Eagles Nest
Hall Renovation #1
Hall Renovation #1

+9

Recommended by100%of homeowners
Avatar for William Siegel
William Siegel
5.0(
2
)
Engineer - Structural

Serving Washington, DC and surrounding areas

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. I work with homeowners, contractors, and design professionals to help move projects through the permit process by providing structural calculations, drawings, evaluations, and engineering letters as needed.\n\nIn-person structural inspections are available in Maryland, DC, and Northern Virginia. Remote structural consulting is available in Delaware and North Carolina.\n\nTypical projects include load-bearing wall removal, beam and header sizing, additions, decks, foundation concerns, and framing evaluations. My goal is to provide practical, code-compliant structural solutions that are clear, efficient, and tailored to the project.

Load Path Section
Framing Plan
Framing Plan
Details
Foundation Plan

+3

7 neighbors recently requested a quote
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Structural Engineering FAQs, answered by experts

In DC, expect the design and permitting phase for structural engineering projects to take three to six months, particularly if your home is in a historic district. Construction timelines vary: foundation repair might require several weeks, while full structural renovations can take several months. Weather delays and high demand during peak seasons can extend schedules, so always allow extra time for inspections and approvals.

Helpful?

Washington homeowners can choose from large engineering firms, boutique residential structural engineers, and contractors specializing in seismic retrofitting or foundation repair. Some general contractors have expertise in structural upgrades, while others focus on historic renovations. For complex projects, you may need specialists in underpinning, steel fabrication, or concrete work, especially if your home is older or located in a historic neighborhood.

Helpful?

For structural engineering projects in DC, high-strength concrete and advanced waterproofing systems are crucial for stable foundations, particularly in areas with clay soil. Engineered lumber and steel beams provide strong, reliable framing. Moisture-resistant materials and effective drainage help manage the local climate. If you’re renovating a historic home, reclaimed wood and traditional masonry techniques maintain structural integrity while preserving original character.

Helpful?

In Washington, consider whether your property falls within a historic district, as this may affect design choices and approvals. Evaluate soil conditions, especially if your area has clay or high water tables, which impact foundation repair strategies. Be mindful of zoning restrictions, flood risks, and neighborhood notification requirements. Also, plan for limited street parking, strict construction noise rules, and seasonal weather that could affect project timelines.

Helpful?

Completing structural engineering projects in Washington offers immediate benefits like improved safety and compliance with local building codes, which can streamline the permit process. Over time, these upgrades boost your property’s value, enhance earthquake resilience, and strengthen foundation stability—especially important for older homes. Thoughtful structural improvements also make future renovations simpler and help your home meet historic preservation standards unique to Washington.

Helpful?

The Washington, DC homeowners’ guide to structural engineering services

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