
Through the teaming of Zivan Cohen and the late Dick Tadjer, TadjerCohen Associates, Inc. was established in 1962 to provide consulting structural engineering services. The firm was later renamed Tadjer-CohenEdelson Associates, Inc. (TCE & Associates, Inc.). Since its inception, TCE has earned the reputation as a one-stop engineering firm with unparalleled engineering ability and customer service that fulfills clients’ needs. On the whole, we protect our client’s assets – their buildings.
"Preserving the past and building the future. Since 1962, we have been fulfilling this mission by assisting our clients in an economical and innovative manner through engineering excellence, preserving the environment, and building communities."
TCE creates innovative and economical designs utilizing state of the art technology.
TCE extends the life and serviceability of buildings
Relying on experience gained through repair and restoration to provide long-lasting solutions.
At TCE & Associates, we are a nationally recognized structural engineering firm with a team of 40+ licensed professionals dedicated to designing safe, efficient, and enduring structures. With decades of experience, our engineers bring technical depth and innovative thinking to every phase of a project—from concept to completion.
We have worked with TCE for many years and several high-profile projects for our company. I have had the pleasure of having them on my team the Moxy and AC Hotels in Washington, DC and currently working with them on a coastal development in Rehoboth Beach, DE. We always enjoy having them on our team because of their expertise, attention to detail, and commitment to meeting our schedules and budgets ensured our projects to the client are successful.
For over two decades, Carr Properties has had the privilege of partnering with TCE on a diverse range of real estate projects, spanning commercial office spaces, residential developments, and mixed-use properties. Throughout our collaboration, TCE has consistently demonstrated an unwavering commitment to excellence, navigating complex challenges with professionalism and expertise. TCE’s ability to manage budgets with precision has been instrumental in keeping our projects financially on track, even in the face of unforeseen market fluctuations or supply chain disruptions. Their proactive approach to scheduling ensures that milestones are met without compromising quality, allowing us to deliver projects on time and exceed stakeholder expectations.
I have worked with Tadjer-Cohen- Edelson professionally for the last thirty years and they have been the go-to structural engineers for our office. They are fast and responsive during all design and construction phases, and their structural designs are efficient and highly in tune with local construction standards and methods. I highly recommend using them for your structural engineering challenges.
We’ve had the pleasure of teaming with TCE for over twenty-five years on a multitude of projects and structural typologies. This includes a recent collaboration, where they delivered a sensible and cost-effective solution merging three structural systems – adaptive reuse, concrete, and wood frame. We see them as teammates - personable, knowledgeable, and professional.
For many years, TCE has been a trusted partner of ours across multiple developments including wrap, podium, and high-rise product. TCE’s commitment to meeting deadlines and their ability to design around complex structural conditions has made them an excellent addition to our team.
I've had the pleasure of working with TCE on multiple projects over the past 10 years, and they are by far the best I've ever collaborated with. Their ability to solve complex issues with practical, cost-effective solutions while maintaining top-tier quality is unmatched. There's truly nothing they can’t design.
It has been my pleasure over the last decade to work side by side with the TCE team to deliver some of the DMV areas most complex high-rise buildings. The TCE team has been a fantastic partner, working through complex construction challenges and always coming to the table with expert solutions to help drive the projects forward.
I have worked with TCE across several decades. While the staff may have changed over the years, TCE's work product remains consistently creative. The company approaches its projects with professionalism, and produces detailed drawings that are responsive to the needs of the owner, architect and contractor alike.
I have worked with Tadjer-Cohen- Edelson professionally for the last thirty years and they have been the go-to structural engineers for our office. They are fast and responsive during all design and construction phases, and their structural designs are efficient and highly in tune with local construction standards and methods. I highly recommend using them for your structural engineering challenges
Over the years I have had great experience working with TCE on three multifamily mixed use projects in the area; Beacon Center in Washington DC, The Bartlett and The Grace/Reva Apartments both located in Crystal City Arlington VA. I worked with three different TCE engineers, who were all, very knowledgeable, each carried a wealth of experience, and they were able to understand, answer and address structural questions quickly. It was a pleasure to work with TCE, on these three challenging projects, and I look forward to our future collaborations.
The Donohoe Companies, Inc. has had a long-standing and successful partnership with Tadjer-Cohen-Edelson Associates, Inc. for decades. Their expert strategic guidance in areas such as base building design, structural remediation, roofing, waterproofing, and overall structural consultation has consistently delivered cost-effective solutions to even our most complex challenges.
We’ve had the pleasure of working with Tadjer Cohen Edelson on office building roofs and a large mixed-use commercial property. Their team delivered highly detailed and precise construction drawings that were critical to the success of the project. Whether it was an office building roof, mixed-use commercial roof, or apartment tower roofs, each project was handled with professionalism, technical expertise, and a keen attention to detail. They consistently demonstrated a deep understanding of building systems and construction processes, which made coordination seamless and efficient. Tadjer Cohen Edelson’s commitment to quality and responsiveness helped us stay on schedule and ensured that the final product met the highest standards. We look forward to working with them again on future projects and would confidently recommend their services to anyone seeking expert and engineering support.
Tadjer Cohen Edelson’s structural engineering team is a beacon of excellence in a sea of mediocrity. Their unwavering commitment to quality and detail sets them apart as a true leader for concrete restoration and preservation. TCE’s passion and expertise shines through in every minutia of even the most complicated of projects while consistently delivering outstanding results. Their innovative approach to problems, and their responsiveness in service makes them a trusted consultant on every structural project big or small.
We’ve had a great relationship with TCE & Associates for over 30 years. I’ve always been impressed with their commitment to excellence and ability to provide innovative and cost-effective solutions to problems whether for new construction or repair and restoration of the existing buildings. We keep coming back to them for our needs because of the value that they provide. I can’t recommend them enough.
Tadjer-Cohen-Edelson Associates, Inc.
1501 Farm Credit Dr., Suite 2300,
Mclean, VA 22102
Phone: 301-587-1820
Fax: 301-588-1966
TCE Structural Engineers India Pvt. Ltd.
K-100, 1st Floor, Kalkaji,
New Delhi-110019, India
Phone: 301-587-1820
Fax: 301-588-1966
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