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Engineer structural pros in Fairfax Station

Kamran Ohi, PE
4020 Annandale Road
4.73(
130
)
Approved Pro
Kamran Ohi, PE
4020 Annandale Road
4.73(
130
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
49 years of experience

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


Avatar for Freeland Engineering, P.C.
Freeland Engineering, P.C.
10814 Courthouse Road
4.80(
62
)
Approved Pro
Freeland Engineering, P.C.
10814 Courthouse Road
4.80(
62
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
20 years of experience

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


Avatar for Great Falls Septic Service Inc
Great Falls Septic Service Inc
380 Burnt Factory Rd
4.63(
99
)
Approved Pro
Great Falls Septic Service Inc
380 Burnt Factory Rd
4.63(
99
)
Approved Pro
Customers say: Quality work
72 local quotes requested
72 years of experience

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


Avatar for Edwin Lawn and Landscape
Edwin Lawn and Landscape
PO Box 5001
4.78(
23
)
Approved Pro
Edwin Lawn and Landscape
PO Box 5001
4.78(
23
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
510 local quotes requested

We have been specializing in all types of landscaping for over 11 years. We offer free estimates so give us a call today! For a free estimate

"So impressed with Edwin and his team! Very professional, fast, communicative and flexible. I used them for one project and invited them back for another. Will absolutely be using them again!"

Samuel S on April 2025

We have been specializing in all types of landscaping for over 11 years. We offer free estimates so give us a call today! For a free estimate

"So impressed with Edwin and his team! Very professional, fast, communicative and flexible. I used them for one project and invited them back for another. Will absolutely be using them again!"

Samuel S on April 2025


Avatar for FM&H Brothers Landscapes, LLC
FM&H Brothers Landscapes, LLC
201 Davis Drive, Unit Q
4.90(
10
)
Approved Pro
FM&H Brothers Landscapes, LLC
201 Davis Drive, Unit Q
4.90(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
358 local quotes requested

FM&H Brothers Landscapes, LLC is one of the top landscaping companies in Sterling, VA. We offer a variety of services including paver patios, retaining walls, walkways, mulching, grading, sod installation and more. ​Landscaping is a dirty business - not everyone can do it well - and that's exactly why we love it. We have been getting our hands grubby since we can remember, starting at our parent’s farm helping with their crops. We are a family owned and operated business located in Sterling, VA. The owner of the company has been in the industry since a young man. Four years ago, two more brothers joined the business. Working together as a family (literally) allows for our clients to receive triple the attention. If two is better than one, then three is even greater! Our passion for landscaping, attention to detail and hard work has taken our company to the next level. Our individual skills allow for the company to offer a range of services. Our goal is to provide you with the best quality of work at competitive prices. The care we put into all of our work, is the same love and effort that we put into the crops when we worked on our parent’s farm.

"Faustino’s team fixed our whole yard in one day! We were very happy with the work performed and the attention to detail."

Brett W on November 2024

FM&H Brothers Landscapes, LLC is one of the top landscaping companies in Sterling, VA. We offer a variety of services including paver patios, retaining walls, walkways, mulching, grading, sod installation and more. ​Landscaping is a dirty business - not everyone can do it well - and that's exactly why we love it. We have been getting our hands grubby since we can remember, starting at our parent’s farm helping with their crops. We are a family owned and operated business located in Sterling, VA. The owner of the company has been in the industry since a young man. Four years ago, two more brothers joined the business. Working together as a family (literally) allows for our clients to receive triple the attention. If two is better than one, then three is even greater! Our passion for landscaping, attention to detail and hard work has taken our company to the next level. Our individual skills allow for the company to offer a range of services. Our goal is to provide you with the best quality of work at competitive prices. The care we put into all of our work, is the same love and effort that we put into the crops when we worked on our parent’s farm.

"Faustino’s team fixed our whole yard in one day! We were very happy with the work performed and the attention to detail."

Brett W on November 2024


Avatar for 3 J's Next Level Landscaping
3 J's Next Level Landscaping
4776 Benecia Ln
3.80(
10
)
Approved Pro
3 J's Next Level Landscaping
4776 Benecia Ln
3.80(
10
)
Approved Pro
1051 local quotes requested
16 years of experience

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!

"One word describes Next Level: Professionals. Julian and his crew were amazing, worked quick and after digging holes in the yard, they were able to put it back together like they were never there! I will be recommending them to anyone looking for a new sprinkler system."

Jesse W on May 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!

"One word describes Next Level: Professionals. Julian and his crew were amazing, worked quick and after digging holes in the yard, they were able to put it back together like they were never there! I will be recommending them to anyone looking for a new sprinkler system."

Jesse W on May 2025


Avatar for A & A Septic Repair
A & A Septic Repair
PO BOX 4447
4.99(
67
)
Approved Pro
A & A Septic Repair
PO BOX 4447
4.99(
67
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
64 local quotes requested

We have 40 years of experience in the field, servicing and installing all types of residential, commercial, and industrial septic systems. Our gratification always comes from getting jobs approved and satisfying our customers with a fully functioning septic system. We are licensed and bonded and offer the highest quality work.

"Rick treated my home like it was his personal home. He was professional, responsive, and completed the repair faster than I thought he could. I highly recommend him"

Garry S on August 2021

We have 40 years of experience in the field, servicing and installing all types of residential, commercial, and industrial septic systems. Our gratification always comes from getting jobs approved and satisfying our customers with a fully functioning septic system. We are licensed and bonded and offer the highest quality work.

"Rick treated my home like it was his personal home. He was professional, responsive, and completed the repair faster than I thought he could. I highly recommend him"

Garry S on August 2021


Avatar for Marks-Woods Construction Services, LLC
Marks-Woods Construction Services, LLC
205 S Union St
4.89(
161
)
Approved Pro
Marks-Woods Construction Services, LLC
205 S Union St
4.89(
161
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1252 local quotes requested

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


Avatar for Thomas Custom Builders Inc
Thomas Custom Builders Inc
9058 Euclid Ave
4.74(
94
)
Approved Pro
Thomas Custom Builders Inc
9058 Euclid Ave
4.74(
94
)
Approved Pro
Customers say: Quality work
344 local quotes requested
21 years of experience

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


Avatar for SABINES MSR CONSTRUCTION LLC
SABINES MSR CONSTRUCTION LLC
5453 Sheffield Court
5.00(
1
)
Approved Pro
SABINES MSR CONSTRUCTION LLC
5453 Sheffield Court
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

This Is MSR CONSTRUCTION LLC and we known for interior and exterior framing, drywall, sheathing , acoustic, drywall ceilings. We are an upon coming construction business that’s looking to put our name out there for the great work we can offer.

"They did really good clean & professional Job I personally recommend SABINES CONSTRUCTION by the quality & prices"

Jose C on April 2025

This Is MSR CONSTRUCTION LLC and we known for interior and exterior framing, drywall, sheathing , acoustic, drywall ceilings. We are an upon coming construction business that’s looking to put our name out there for the great work we can offer.

"They did really good clean & professional Job I personally recommend SABINES CONSTRUCTION by the quality & prices"

Jose C on April 2025

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FAQs for engineer structural projects in Fairfax Station, VA

You should replace floor joists as soon as you see clear signs of structural trouble—sagging floors, wide wall cracks, uneven door frames, wet or rotting wood, persistent squeaks, or windows that no longer latch. Tilted or sinking supports in the crawl space are another red flag. If you notice any of these signs, call a pro right away to keep your home’s structure safe.

If the joists are exposed from below, a pro can swap them out without touching the finished floor above. In an unfinished basement or crawl space, you’ll often see the joists and can easily reach them. When insulation, subflooring, or finished flooring blocks access, the crew must remove these materials before repairs can begin.

Sistering allows a pro to reinforce a cracked or undersized joist without tearing up the entire floor. The contractor slowly raises the frame, then fastens a new joist snugly against the damaged one to share the load. When done correctly, sistering restores full structural strength and keeps the floor level without the cost of a complete replacement.

Floor joists installed correctly in a stable environment can last for 100 years or more, often outlasting the house itself. However, termite damage, moisture, leaks, and other problems can significantly reduce a floor's lifespan. For instance, if the floor is exposed to consistent moisture, you'll likely need to replace the joists every 20 to 30 years.

Homeowners' insurance covers floor joist damage resulting from sudden and accidental events, such as fire, windstorm, or water damage from a burst pipe. It will not cover repairs resulting from gradual deterioration, poor maintenance, or termite infestations. Review your insurance policy and consult your provider to verify the conditions that guarantee full coverage. Doing so ensures you are fully aware of your responsibilities and can plan your repair work with complete confidence.

Floor joists are essential structural components that provide a stable foundation for your home. They directly transfer the weight of floors, furniture, and occupants to the foundation, ensuring stability and a safe living environment. Without these robust beams, the structure would face compromised load distribution, leading to potential safety hazards and costly repairs. Proper installation and maintenance are crucial for long-term durability and safety.

The Fairfax Station, VA homeowners’ guide to engineer structurals
From average costs to expert advice, get all the answers you need to get your job done.
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