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Engineer structural pros in Reston
Along with being a full service Structural, Civil and Architectural engineering firm, we are also Virginia Class A General Contractors that specialize in structural repairs, renovations and modifications of all types. With the engineering and construction expertise under one roof we can "Analyze, Design and Build" any type of project and provide a central point of contact for all phases of any project. We specialize in Structural Engineering Assessments, Structural Analysis and Design using Wood, Steel, Concrete and Masonry, Architectural Building Plans, Foundation Repairs, Retaining Walls, Interior Wall Removal, Truss and Rafter Repairs, New Home Design-Build projects and much more.
"Structural repair. They did design, got County permit and did the work that passed county inspection. Brian is good in investigation of problem and creating engineering solution.. The workers did a very good job. Very happy with the job."
Jacob M on September 2022
Along with being a full service Structural, Civil and Architectural engineering firm, we are also Virginia Class A General Contractors that specialize in structural repairs, renovations and modifications of all types. With the engineering and construction expertise under one roof we can "Analyze, Design and Build" any type of project and provide a central point of contact for all phases of any project. We specialize in Structural Engineering Assessments, Structural Analysis and Design using Wood, Steel, Concrete and Masonry, Architectural Building Plans, Foundation Repairs, Retaining Walls, Interior Wall Removal, Truss and Rafter Repairs, New Home Design-Build projects and much more.
"Structural repair. They did design, got County permit and did the work that passed county inspection. Brian is good in investigation of problem and creating engineering solution.. The workers did a very good job. Very happy with the job."
Jacob M on September 2022
We are pleased to introduce you to Kamran Ohi. Kamran comes to you with over 30 years of industry experience. He has worked on hundreds of projects including residential, commercial, industrial and institutional. His experince goes back to design of well known landmarks such as Vietnam memorial wall and renovation of Pentagon. Kamran proudly provides structural engineering services to DC and the surrounding areas. His reputation is highly held and he takes each project very seriously. His pricing is very competitive and his workmanship is of the highest quality.
"Very professional and on time. Provided accurate and expert help, highly recommend this company."
Sidd G on January 2025
We are pleased to introduce you to Kamran Ohi. Kamran comes to you with over 30 years of industry experience. He has worked on hundreds of projects including residential, commercial, industrial and institutional. His experince goes back to design of well known landmarks such as Vietnam memorial wall and renovation of Pentagon. Kamran proudly provides structural engineering services to DC and the surrounding areas. His reputation is highly held and he takes each project very seriously. His pricing is very competitive and his workmanship is of the highest quality.
"Very professional and on time. Provided accurate and expert help, highly recommend this company."
Sidd G on January 2025
OGV offers property condition assessments, due diligence, and existing conditions surveys. In addition to structural evaluations and investigations, as a Professional Structural Engineer License Holder (P.E.), we help and provide peer review, required documents and permit inquiries for counties and local agencies.
"Omid showcased professionalism and expertise by responding quickly, even with limited notice. He provided a detailed explanation of a specific item requiring special attention to meet current code standards. Furthermore, Omid certified the deck structure and delivered a thorough report and letter for the county permit reviewer. I wholeheartedly recommend Omid to anyone seeking a dependable and highly skilled structural engineer."
Wilfredo F on April 2025
OGV offers property condition assessments, due diligence, and existing conditions surveys. In addition to structural evaluations and investigations, as a Professional Structural Engineer License Holder (P.E.), we help and provide peer review, required documents and permit inquiries for counties and local agencies.
"Omid showcased professionalism and expertise by responding quickly, even with limited notice. He provided a detailed explanation of a specific item requiring special attention to meet current code standards. Furthermore, Omid certified the deck structure and delivered a thorough report and letter for the county permit reviewer. I wholeheartedly recommend Omid to anyone seeking a dependable and highly skilled structural engineer."
Wilfredo F on April 2025
With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077
"On time, friendly, effective."
David F on May 2023
With 70 years of experience, Great Falls Septic Service offers comprehensive commercial and residential septic services. From brand new installs, repairs and maintenance-preventative or emergency, you can count on us to take care of all things septic. Additionally, we offer roll off containers and perform lot clearing. Our team of skilled servicemen provide quality workmanship and excellent customer service to ensure your septic system is well-maintained and fully functional. If you're looking for a company that provides outstanding service and quality work at an affordable price, then look no further than Great Falls Septic Service. We will do everything possible to cater to our clients. Family owned & operated. Phone number(s) 540-545-7075 or 703-444-5600. Fax number 540-545-7077
"On time, friendly, effective."
David F on May 2023
We provide traditional architectural services to our clients. We are selective on what types of architect projects we work on because we want to give you personal service and individual attention. We service Prince William, Montgomery, Fairfax County, Washington D.C. Licenses: Architect #: 9211 EXP: 9/25/2024 Architect #: 0401008083 EXP: 8/31/2025 Architect #: ARC5449 EXP: 4/30/2026 Memberships and Affiliations: AIA, NCARB, and CBO, Licensed in VA, MD, DC and MI
"Good. My first time hiring an architect. So lots of edits required, like downscaling fancy lighting to cut costs, and every time I had an edit I had to then edit something else again! He had a creative solution to a problem. Was very available for communication"
Lisa A on June 2024
We provide traditional architectural services to our clients. We are selective on what types of architect projects we work on because we want to give you personal service and individual attention. We service Prince William, Montgomery, Fairfax County, Washington D.C. Licenses: Architect #: 9211 EXP: 9/25/2024 Architect #: 0401008083 EXP: 8/31/2025 Architect #: ARC5449 EXP: 4/30/2026 Memberships and Affiliations: AIA, NCARB, and CBO, Licensed in VA, MD, DC and MI
"Good. My first time hiring an architect. So lots of edits required, like downscaling fancy lighting to cut costs, and every time I had an edit I had to then edit something else again! He had a creative solution to a problem. Was very available for communication"
Lisa A on June 2024
Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.
"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."
Calvin S on March 2025
Whether you want to remodel your existing home or build a brand new one, Thomas Custom Builders can help. Our 70+ years of combined experience as Northern Virginia general contractors and our commitment to quality ensures your custom construction or design-build project will be a success. Be it a master suite, custom kitchen or home addition, we dig deep to learn what’s making you spend your time and resources on this particular project. We honestly discuss the costs associated with your goals, then we deliver what we do best: excellence in custom remodeling. The only thing that counts is finishing your job exactly the way you want it. No compromise.
"From initial design meeting to project completion Thomas Custom Builders kept promises, delivered outstanding work on time and on budget and exceeded our expectations in every way. Their on site team did everything they could to keep the work place clean and tidy so as disrupt our home life as little as possible. Team leadership kept us informed and made sure our questions were answered promptly. They are excellent tradesmen with exceptional skills. I’d give them 10 stars if I could."
Calvin S on March 2025
Take your dreams to the Next Level! In business since 2009, 3 Jay's Next Level Landscaping & Home Design has been serving greater Fairfax, Prince William & surrounding counties with the finest in landscaping and home designs in the industry. We offer everything from lawn care maintenance & landscaping to building your dream home. Built using the highest quality commercial & custom grade materials, we offer free estimates on all of our work. For larger projects, we offer custom design planning, in which you will receive a set of building plans approved by the county. These blueprints will be accompanied by an accurate 3D visual representation of what your project will look like upon completion. Our friendly staff have a combined experience of over 50 years & customer service has always been our top priority. We will always respond quickly to your requests, our prices are reasonable & our work is consistently performed to the highest caliber. Take your dreams to the Next Level & call us today for your free estimate!
"We weren't sure what we wanted to have done, but we knew we needed to change the landscaping of our front yard. Julian and Moses were very knowledgeable and helpful! They were quick to respond, quick to get the work done, and provided suggestions that turned out amazing! We are very happy with the work done, and have received several compliments from our neighbors."
Cathy K on April 2025
Take your dreams to the Next Level! In business since 2009, 3 Jay's Next Level Landscaping & Home Design has been serving greater Fairfax, Prince William & surrounding counties with the finest in landscaping and home designs in the industry. We offer everything from lawn care maintenance & landscaping to building your dream home. Built using the highest quality commercial & custom grade materials, we offer free estimates on all of our work. For larger projects, we offer custom design planning, in which you will receive a set of building plans approved by the county. These blueprints will be accompanied by an accurate 3D visual representation of what your project will look like upon completion. Our friendly staff have a combined experience of over 50 years & customer service has always been our top priority. We will always respond quickly to your requests, our prices are reasonable & our work is consistently performed to the highest caliber. Take your dreams to the Next Level & call us today for your free estimate!
"We weren't sure what we wanted to have done, but we knew we needed to change the landscaping of our front yard. Julian and Moses were very knowledgeable and helpful! They were quick to respond, quick to get the work done, and provided suggestions that turned out amazing! We are very happy with the work done, and have received several compliments from our neighbors."
Cathy K on April 2025
We are a full-service, licensed, and bonded design-build company that provides superior home design and remodeling services for basements, addition, custom new home and all residential renovation needs in VA, DC & MD and surrounding areas. With our integrated home renovation design-build approach, everything is under control for your project – from design to material procurement, project management to construction – so that your home renovation process is smooth and efficient. Our expertise includes everything from additions, new construction design and build, bathrooms, kitchens, and basements to full home renovations and anything in-between. We pride ourselves on our high-end designs, quality of construction, and most importantly, our client satisfaction.
"Everything went great. This is definitely a big addition for me."
Dayana W on May 2023
We are a full-service, licensed, and bonded design-build company that provides superior home design and remodeling services for basements, addition, custom new home and all residential renovation needs in VA, DC & MD and surrounding areas. With our integrated home renovation design-build approach, everything is under control for your project – from design to material procurement, project management to construction – so that your home renovation process is smooth and efficient. Our expertise includes everything from additions, new construction design and build, bathrooms, kitchens, and basements to full home renovations and anything in-between. We pride ourselves on our high-end designs, quality of construction, and most importantly, our client satisfaction.
"Everything went great. This is definitely a big addition for me."
Dayana W on May 2023
Marks-Woods Construction Services is a full service general contractor serving Virginia and Washington, DC located in Historic Old Town Alexandria, VA. We have a complete array of services and project types to serve our diverse clientele, including residential and commercial construction. Teamwork is emphasized in our project management style. MW strives for positive collaboration with our clients to achieve all project goals. Customer service and successful communication contribute to our high percentage of repeat clients. Our service is what separates us from our competition. Our company's growth has been consistent, yet conservative by design. MW carefully selects projects that match our resources and skill set to ensure jobs are completed successfully, within budget, and on schedule. MW provides premium quality at a competitive cost with proven reliable performance, while maintaining a safe work environment. MW self performs the majority of its work, rather than using subcontractors. This allows MW to pass along significant cost savings to our clients, along with also providing a higher quality project, in a more aggressive time frame. Ready to discuss your project with the Marks-Woods team? We'd love to chat. For immediate assistance, please visit www.markswoods.com/contact and fill out the Contact Us form today!
"Excellent. We selected Marks-Woods Construction because they worked with us to create a proposal and contract that met our most important goals and stayed within our budget. We enjoyed working with the designers to come up with the details on what we wanted. The construction was done by the MW team of professionals. They know what they are doing, and it shows in the high quality results."
Alan S on March 2021
Marks-Woods Construction Services is a full service general contractor serving Virginia and Washington, DC located in Historic Old Town Alexandria, VA. We have a complete array of services and project types to serve our diverse clientele, including residential and commercial construction. Teamwork is emphasized in our project management style. MW strives for positive collaboration with our clients to achieve all project goals. Customer service and successful communication contribute to our high percentage of repeat clients. Our service is what separates us from our competition. Our company's growth has been consistent, yet conservative by design. MW carefully selects projects that match our resources and skill set to ensure jobs are completed successfully, within budget, and on schedule. MW provides premium quality at a competitive cost with proven reliable performance, while maintaining a safe work environment. MW self performs the majority of its work, rather than using subcontractors. This allows MW to pass along significant cost savings to our clients, along with also providing a higher quality project, in a more aggressive time frame. Ready to discuss your project with the Marks-Woods team? We'd love to chat. For immediate assistance, please visit www.markswoods.com/contact and fill out the Contact Us form today!
"Excellent. We selected Marks-Woods Construction because they worked with us to create a proposal and contract that met our most important goals and stayed within our budget. We enjoyed working with the designers to come up with the details on what we wanted. The construction was done by the MW team of professionals. They know what they are doing, and it shows in the high quality results."
Alan S on March 2021
I do land clearing tilling excavation for small acreage I have a tractor and many attachments to do different jobs and excavator and skid steer in northern VA
I do land clearing tilling excavation for small acreage I have a tractor and many attachments to do different jobs and excavator and skid steer in northern VA
Engineer structurals FAQs
You should bring in a structural engineer any time you’re adding or removing something that carries weight—think new construction, a major remodel, or moving a load‑bearing wall. Call one during a real‑estate deal, after storm damage, or when you spot cracks in the foundation, beams, or chimney. An engineer’s report confirms that the structure is sound and tells your contractor exactly what fixes—or reinforcements—are needed to keep the home safe long‑term.
Who you hire depends on the task. Hire an architect to shape the look and layout of your home. Call a structural engineer to verify that load‑bearing elements—walls, beams, foundation—can handle the plan or to diagnose structural issues. Bring in a home inspector for a broad health check during a sale, after a storm, or for an appraisal. Matching the pro to the job keeps costs down and problems in check.
During the visit, the engineer checks your foundation, framing, walls, roof, and insulation, then compares what they see to any existing plans. If the structure matches the specs, you get the all‑clear; if not, the engineer outlines the fixes. Their sign‑off is what lets the next phase of work move forward, so expect clear notes on what’s solid and what needs attention.
Civil engineering is the broad field that covers roads, bridges, and other infrastructure. Structural engineers focus on the loads and forces inside a building or bridge—foundations, beams, and walls—while mechanical engineers design and keep power systems running, from elevators and turbines to HVAC equipment. In short, civil handles the big picture, structural makes sure it stands up, and mechanical keeps everything moving.
Most structural engineers offer free quotes. They’ll look at your home’s size and the scope of work to decide whether a flat fee or hourly rate makes sense. Simple inspections are usually priced by square footage; bigger, more complex jobs require a site visit and a detailed written estimate. Getting that number up front lets you nail down a budget before any drawings or inspections begin.
The engineer reviews every load‑bearing part of the home—floors, foundation, walls, roof, and major beams—along with insulation and the soil around the structure. They also factor in local weather risks and nearby water sources. The goal is to confirm that the materials and construction can handle day‑to‑day loads and extreme events alike, and to flag any spots that need reinforcement.
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