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Business Details
50+ Years
experience
Trusted Structural Engineering Services in Washington, DC
Since 1960, SK & A Structural Engineers has established itself as a leader in structural engineering consulting, transforming visionary designs into functional realities. Our team of 37 registered engineers delivers comprehensive services spanning structural analysis, building enclosure consulting, waterproofing, testing, and inspection across 29 states. With a legacy of innovation and environmental stewardship, we support sustainable building goals as signatories of the SE 2050 Challenge.

Our collaborative approach ensures cost-effective strategies that balance initial design with long-term maintenance, serving clients from the Washington, DC metro area with the capabilities of a large firm and the personalized attention of a boutique practice. Guided by 65 years of experience, we prioritize client relationships and accountability, applying modern design principles to both new constructions and historic renovations while maintaining rigorous standards of excellence.
Services
Structural Engineering Repair + Restoration Building Enclosure Waterproofing Testing + Inspection
Details
  • Year established: 1960
Highlights and features
  • We have 65 years of experience in structural engineering consulting
  • Our team includes 37 registered engineers with expertise across 29 states
  • We are signatories of the SE 2050 Challenge for sustainable building practices
  • We offer comprehensive services from design to post-construction evaluation
  • We maintain rigorous quality control through specialized certifications
Associations and certifications
  • SE 2050 Challenge
  • DC CBE
  • Virginia SWaM
Services
Structural Engineering
Our structural engineering team transforms architectural visions into reality through comprehensive analysis and design. We specialize in new constructions, historic renovations, and building expansions, providing contract documents, value engineering, and sustainable design solutions. With expertise in seismic engineering and blast-resistant design, we ensure structural integrity across diverse projects.
Repair + Restoration
We develop cost-effective repair strategies for building components including parking garages, facades, and balconies. Our services cover condition evaluation, structural strengthening, and preventive maintenance planning. Through detailed cost estimating and construction monitoring, we extend service life while maintaining public safety and regulatory compliance.
Building Enclosure + Waterproofing
Our building enclosure specialists design and evaluate waterproofing systems for roofs, walls, and fenestration. We provide commissioning services, construction sequencing coordination, and field performance testing to ensure watertight integrity. The team addresses material compatibility and energy efficiency in both new constructions and existing building retrofits.
Testing + Inspection
We offer comprehensive laboratory and field testing services including concrete analysis, non-destructive testing, and special inspections. Our certified technicians perform core drilling, bolt testing, and floor flatness evaluations, ensuring compliance with ACI, AWS, and ICC standards throughout the construction process.
Embodied Carbon Reduction
As SE 2050 Challenge participants, we implement carbon reduction strategies through material selection analysis and life-cycle assessments. Our action plan integrates low-carbon concrete solutions and structural system optimizations to help clients achieve net-zero goals while maintaining engineering excellence and code compliance.
People
Scott Stewart
Managing Principal
With decades of structural engineering experience, Scott Stewart leads SK & A Structural Engineers's strategic direction while maintaining active involvement in complex design projects across the firm's market sectors.
Walid Choueiri
Senior Principal
Walid Choueiri specializes in structural design and forensic engineering, applying advanced analysis techniques to high-rise buildings and complex structural systems throughout his 30-year career at SK & A Structural Engineers.
Brent Stephens
Senior Principal
Brent Stephens oversees repair and restoration projects, leveraging his expertise in condition assessments and structural strengthening solutions for both historic and modern buildings across multiple jurisdictions.
Hakan Onel
Senior Principal
Hakan Onel focuses on structural design innovation, directing teams in creating efficient systems for mixed-use developments and institutional buildings while maintaining strict adherence to sustainability goals.
Charles Mitchell
Director of Testing + Inspection
As Testing + Inspection Director, Charles Mitchell manages field and laboratory testing operations, ensuring compliance with ACI and ICC certification standards across all construction phases.
Questions
What structural engineering services does SK&A offer?
We provide structural design, repair, building enclosure consulting, waterproofing, testing, and inspection services for new and existing structures.
How does SK&A support sustainable building practices?
As SE 2050 Challenge signatories, we implement embodied carbon reduction strategies and sustainable design solutions across all our engineering projects.
In which states are your engineers licensed?
Our team holds registrations in 29 states, including Washington, DC, Virginia, Maryland, Texas, and Florida, with additional jurisdictions available.
What experience do you have with historic building renovations?
We specialize in historic structure evaluation and adaptive reuse, having completed renovations for century-old landmarks while maintaining structural integrity.
How do you ensure quality in construction projects?
Through comprehensive quality control services, field inspections, and specialized testing including ground penetrating radar and concrete analysis.