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    Average homeowner rating
  • Verified reviews icon116
    Verified structural engineering services reviews

Find Structural engineers in Triangle

"Very, very disappointing experience; Lux replaced the foundation of my 1850 log cabin. The design was bad, the communication was bad, the execution was bad. Throughout the entire process, they were making mistakes. I now need to pay another company to fix the mess they left behind. I would strongly suggest not using this company!"

Don H on August 2024

LUX Foundation Solutions is a fully licensed and insured foundation repair, waterproofing, crawlspace repair and masonry service contractor. Providing services to a large part of central and Northern Virginia. With Combine Experience of over 25 years!

"Very, very disappointing experience; Lux replaced the foundation of my 1850 log cabin. The design was bad, the communication was bad, the execution was bad. Throughout the entire process, they were making mistakes. I now need to pay another company to fix the mess they left behind. I would strongly suggest not using this company!"

Don H on August 2024


Avatar for JES Foundation Repair

JES Foundation Repair

4.24(
338
)
Approved Pro

JES Foundation Repair

4.24(
338
)
Approved Pro
Customers say: Quality work
38 local quotes requested
32 years of experience

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025


Exterior Waterproofing Experts

4.83(
24
)
Approved Pro

Exterior Waterproofing Experts

4.83(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
19 local quotes requested

Exterior Waterproofing Experts is a Class A General Contractor in the state of Virginia since 1997. Our service protects your home against wet basements, water leaks, flooding, water seepage, foundation leaking, and wall seepage. We have been doing subcontract grading and drainage work for many years. We have completed many waterproofing contracts for residents of Fairfax County, including: Fairfax, Alexandria, Arlington, McLean, Great Falls, Potomac, and Vienna, Virginia (VA). We are now offering to work directly for clients, passing the savings on to the homeowners. It is our belief that water problems are best solved from the outside before water gets into your home.

"My basement had mold and evidence of water damage in July/August, and I was referred to Exterior Waterproofing Experts. The majority of the mold was on the side of my house, but the salesperson made a strong pitch about the need to waterproof the front of my home by digging up the garden down to the foundation. My wife was largely convinced, so we went ahead with the $8000 project. Six months later, the insulation behind the waterproofed front of the house is sopping wet. When the salesperson came back to my home to take a look, his explanation was that the water probably came up through the floor. His words were along the lines of "99% of the time the water comes up through the front." At this point, I feel like I have an expensive solution to a problem I didn't really have."

Ben W on March 2021

Exterior Waterproofing Experts is a Class A General Contractor in the state of Virginia since 1997. Our service protects your home against wet basements, water leaks, flooding, water seepage, foundation leaking, and wall seepage. We have been doing subcontract grading and drainage work for many years. We have completed many waterproofing contracts for residents of Fairfax County, including: Fairfax, Alexandria, Arlington, McLean, Great Falls, Potomac, and Vienna, Virginia (VA). We are now offering to work directly for clients, passing the savings on to the homeowners. It is our belief that water problems are best solved from the outside before water gets into your home.

"My basement had mold and evidence of water damage in July/August, and I was referred to Exterior Waterproofing Experts. The majority of the mold was on the side of my house, but the salesperson made a strong pitch about the need to waterproof the front of my home by digging up the garden down to the foundation. My wife was largely convinced, so we went ahead with the $8000 project. Six months later, the insulation behind the waterproofed front of the house is sopping wet. When the salesperson came back to my home to take a look, his explanation was that the water probably came up through the floor. His words were along the lines of "99% of the time the water comes up through the front." At this point, I feel like I have an expensive solution to a problem I didn't really have."

Ben W on March 2021


Kamran Ohi P E

4.82(
155
)
Approved Pro

Kamran Ohi P E

4.82(
155
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
58 local quotes requested

Small business, self employed, use subcontractors that I can trust, minimum consultation and visit fee $295. That includes, site visit, inspection, and a verbal on site report and follow up with contractors as needed . The fee for site visit and inspection is a flat fee, basically it is the charge to drive to your location and provide a verbal report. This fee does not include a written formal report. A written report is approximately an additional $300. I work evenings and weekends as needed, structural, architectural and mechanical design, inspections and reports, fronsic, expert witness. Please contact by phone or email: [email protected]. I will be on Vacation from July 9th till July 25th

"Kamran was easy to coordinate with and schedule the inspection. He was prompt and thorough with his review. His write-up was completed in a couple of days without any follow-up being required."

Andrew C on May 2025

Small business, self employed, use subcontractors that I can trust, minimum consultation and visit fee $295. That includes, site visit, inspection, and a verbal on site report and follow up with contractors as needed . The fee for site visit and inspection is a flat fee, basically it is the charge to drive to your location and provide a verbal report. This fee does not include a written formal report. A written report is approximately an additional $300. I work evenings and weekends as needed, structural, architectural and mechanical design, inspections and reports, fronsic, expert witness. Please contact by phone or email: [email protected]. I will be on Vacation from July 9th till July 25th

"Kamran was easy to coordinate with and schedule the inspection. He was prompt and thorough with his review. His write-up was completed in a couple of days without any follow-up being required."

Andrew C on May 2025


Avatar for Tadash LLC

Tadash LLC

5.00(
5
)

Tadash LLC

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Tadash LLC provides contracting for all types of concrete operations. We are also experienced in building retaining walls, driveways, sidewalks, and curbs. We can perform structural repairs & maintenance, demolition, and we can assist with permitting requirements through your local County. Tadash LLC has experienced personnel that are focused on the delivery of reliable service and quality, while maintaining safe working conditions. We strive to provide reasonably priced services with complete licenses and insurance coverage for your biggest or smallest jobs. www.tadashnova.com Contact us for a free estimate [email protected]

"Excellent, thank you!"

R. W on December 2024

Tadash LLC provides contracting for all types of concrete operations. We are also experienced in building retaining walls, driveways, sidewalks, and curbs. We can perform structural repairs & maintenance, demolition, and we can assist with permitting requirements through your local County. Tadash LLC has experienced personnel that are focused on the delivery of reliable service and quality, while maintaining safe working conditions. We strive to provide reasonably priced services with complete licenses and insurance coverage for your biggest or smallest jobs. www.tadashnova.com Contact us for a free estimate [email protected]

"Excellent, thank you!"

R. W on December 2024


MT Engineering Services

No reviews yet

MT Engineering Services

No reviews yet

Our engineering firm specializes in providing professional Civil Engineering services in both the public and private sectors for construction and development projects including Geotechnical Eng., Pavement Eng., and Construction Materials Testing and Inspection. MTES provides tailored geotechnical exploration and investigation services to our clients designed to fit the need and scope Our services include: Geotechnical Investigations Foundation inspection and repair Deep Foundation Design for Bridges, High-Rises, and other Structures Slope Stability Analyses Geotechnical Instrumentation Structural design and inspection Observation and Testing of Compacted Fill and (Site) Earthworks Observation and Logging of Drilled Shaft Excavations and Construction Coordination and Implementation of Full-Scale Shaft Load Testing Observation of Pile Foundation Systems Vibration Monitoring Peer Reviews

Our engineering firm specializes in providing professional Civil Engineering services in both the public and private sectors for construction and development projects including Geotechnical Eng., Pavement Eng., and Construction Materials Testing and Inspection. MTES provides tailored geotechnical exploration and investigation services to our clients designed to fit the need and scope Our services include: Geotechnical Investigations Foundation inspection and repair Deep Foundation Design for Bridges, High-Rises, and other Structures Slope Stability Analyses Geotechnical Instrumentation Structural design and inspection Observation and Testing of Compacted Fill and (Site) Earthworks Observation and Logging of Drilled Shaft Excavations and Construction Coordination and Implementation of Full-Scale Shaft Load Testing Observation of Pile Foundation Systems Vibration Monitoring Peer Reviews


Avatar for Rinker Design Associates, P.C.

Rinker Design Associates, P.C.

No reviews yet

Rinker Design Associates, P.C.

No reviews yet
43 years of experience

Transportation/Utility Design, Traffic, Land Development and Planning, Surveying, Right-of-way Acquisition, Environmental, Construction Engineering and Inspection, Structural, Litigation Support

Transportation/Utility Design, Traffic, Land Development and Planning, Surveying, Right-of-way Acquisition, Environmental, Construction Engineering and Inspection, Structural, Litigation Support


Avatar for May Design Group LLC

May Design Group LLC

No reviews yet

May Design Group LLC

No reviews yet
8 years of experience

Architectural Building Design, Structural Design, Mechanical &Plumbing&Electrical Design, Custom Home Design, Interior Design, Deck Design, Construction Consulting, Permit Expediting, 3D Model Visualizing, and many more... May Design Group is composed of Licensed Architects and Engineers to serve in DC, MD, VA.

Architectural Building Design, Structural Design, Mechanical &Plumbing&Electrical Design, Custom Home Design, Interior Design, Deck Design, Construction Consulting, Permit Expediting, 3D Model Visualizing, and many more... May Design Group is composed of Licensed Architects and Engineers to serve in DC, MD, VA.



Vodsil

No reviews yet

Vodsil

No reviews yet
24 years of experience

Vodsil is a Family owned company that started out in Maryland in early 2001 as a wood floor specialist. Since then we have worked with dozens of companies in the D.M.V area and expanded our services to every aspect of residential construction, repairs, and renovation. We have our HMIC and are liscenced and insured.

Vodsil is a Family owned company that started out in Maryland in early 2001 as a wood floor specialist. Since then we have worked with dozens of companies in the D.M.V area and expanded our services to every aspect of residential construction, repairs, and renovation. We have our HMIC and are liscenced and insured.

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Structural Engineering questions, answered by experts

In framing, studs are placed at 16-inch intervals to coincide with the typical spacing of wall materials such as drywall or plywood. This spacing is called "on-center" and is necessary for maintaining structural stability and efficient use of materials. The 16-inch spacing also helps to distribute the weight evenly across the building's structure. For those looking to cut material costs and improve energy efficiency, 24-inch stud spacing can be employed through a method called "advanced framing". This requires careful planning and adherence to local building codes to ensure structural integrity.

Hiring a structural engineer costs about $550 on average. However, prices range from as low as $200 up to $1,500. Structural engineers may charge by project, hourly, or by the square footage, making it important to understand how your chosen engineer structures their estimates. Additional cost factors include project type, the scope of work, the size of the project, and your geographic location.

First, most contractors will have a structural engineer create a report and plan for your project to ensure it’s safe to cut into the load-bearing wall. The contractor will then excavate around the wall, if necessary, measure the opening—allowing for additional space to fit and level the door, and then cut the doorway out. They will likely install a steel lintel as a header over the door for support. Once the doorway is cut out, they’ll demolish the concrete using sledge hammers and masonry chisels, clean up the surrounding concrete, and seal around the door with masonry mortar. 

A few hours for inspection, with a detailed report following in a week.

Accurate measurements, sturdy materials, and seamless integration with other structures.

The Triangle, VA homeowners’ guide to structural engineering services

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