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Find Structural engineers in Quantico

Avatar for JES Foundation Repair

JES Foundation Repair

309 Quarles Road, Suite A
4.03(
182
)
•Approved Pro

JES Foundation Repair

309 Quarles Road, Suite A
4.03(
182
)
•Approved Pro
Customers say: Quality work
20 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)

"Tony Hall was professional, helpful and knowledgeable. I don't know how it could have been any better."

Ruth H on June 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)

"Tony Hall was professional, helpful and knowledgeable. I don't know how it could have been any better."

Ruth H on June 2025


Avatar for Lux Foundation Solution

Lux Foundation Solution

Prosperity Drive
4.58(
31
)
•Approved Pro

Lux Foundation Solution

Prosperity Drive
4.58(
31
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
57 local quotes requested

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

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 S&S Waterproofing And Foundation Repair

S&S Waterproofing And Foundation Repair

5318 Longbow Rd
5.00(
38
)
•Approved Pro

S&S Waterproofing And Foundation Repair

5318 Longbow Rd
5.00(
38
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

At S&S Waterproofing we have over 25+ years of combined experience in Waterproofing and foundation repair. We never use sub-contractors and aren't a franchise owned company that uses high pressure sales tactics. We are a certified foundation repair specialist and install hydraulic push piers and helical piers. We offer a lifetime transferable warranty and free inspections.

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024

At S&S Waterproofing we have over 25+ years of combined experience in Waterproofing and foundation repair. We never use sub-contractors and aren't a franchise owned company that uses high pressure sales tactics. We are a certified foundation repair specialist and install hydraulic push piers and helical piers. We offer a lifetime transferable warranty and free inspections.

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024


Exterior Waterproofing Experts

PO Box 262
4.83(
24
)
•Approved Pro

Exterior Waterproofing Experts

PO Box 262
4.83(
24
)
•Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 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


Avatar for JES Foundation Repair

JES Foundation Repair

7940 Gainsford Court
4.24(
337
)
•Approved Pro

JES Foundation Repair

7940 Gainsford Court
4.24(
337
)
•Approved Pro
Customers say: Quality work
28 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)

"The contractors from JES Foundation Repair did outstanding work on my project. The worked that was to be performed .was explained step by step. It was explained so I understood what was to be done. I was also given instructions as to what to do if a problem occurred after job completion. I was very proud of their work ethics and great attitude."

Kathleen B on August 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)

"The contractors from JES Foundation Repair did outstanding work on my project. The worked that was to be performed .was explained step by step. It was explained so I understood what was to be done. I was also given instructions as to what to do if a problem occurred after job completion. I was very proud of their work ethics and great attitude."

Kathleen B on August 2025


Avatar for The Drying Co

The Drying Co

3005 John Deere Rd
4.59(
46
)
•Approved Pro

The Drying Co

3005 John Deere Rd
4.59(
46
)
•Approved Pro
Customers say: True professional
91 local quotes requested
23 years of experience

The Drying Co. has been serving Greater Richmond & the Virginia Peninsulas since 2002. We are a Home Performance Contractor specializing in Attics, Basements, Crawl Spaces, Foundations, and Gutters. Our goal is to deliver comfortable, energy-efficient, durable, and healthy home & building environments for all of our customers. We understand that no home is exactly like another, so we take all the time you need to discuss your concerns and goals. We then perform a thorough inspection of your home and develop a plan to achieve your goals. We want to make sure our customers are comfortable with the recommendations we make, so we will spend all the time you need to answer your questions. Our services include; Attic & Home insulation, Basement Waterproofing, Crawl Space Repair & Encapsulation, Foundation Repair, Duct Insulation, Dehumidifiers & Sump Pumps, and Seamless Metal Gutters with Leaf Protection Options.

"Avoid them...their own intall tech walked into my house, looked at the work order and -incredulously- declared to me that 'whoever wrote this up...they were probably new. But this isn't going to solve your problem". That ACTUALLY HAPPENED. Drying Company completely botched the job. They failed to finish the work (offered some laughable small credit instead) and then sought civil remedy for an amount I don't owe. Oh, and they kept the deposit. To summarize: THEY BOTCHED A JOB AND THEN SUED THEIR OWN CUSTOMER. I was going to let sleeping dogs lie but now I'm going to use every consumer digital megaphone available. Just look at the photo! They were hired to spray foam my crawl space!! That's what they left...They claim this crawl space has been mitigated for pipes freezing."

Russ G on September 2023

The Drying Co. has been serving Greater Richmond & the Virginia Peninsulas since 2002. We are a Home Performance Contractor specializing in Attics, Basements, Crawl Spaces, Foundations, and Gutters. Our goal is to deliver comfortable, energy-efficient, durable, and healthy home & building environments for all of our customers. We understand that no home is exactly like another, so we take all the time you need to discuss your concerns and goals. We then perform a thorough inspection of your home and develop a plan to achieve your goals. We want to make sure our customers are comfortable with the recommendations we make, so we will spend all the time you need to answer your questions. Our services include; Attic & Home insulation, Basement Waterproofing, Crawl Space Repair & Encapsulation, Foundation Repair, Duct Insulation, Dehumidifiers & Sump Pumps, and Seamless Metal Gutters with Leaf Protection Options.

"Avoid them...their own intall tech walked into my house, looked at the work order and -incredulously- declared to me that 'whoever wrote this up...they were probably new. But this isn't going to solve your problem". That ACTUALLY HAPPENED. Drying Company completely botched the job. They failed to finish the work (offered some laughable small credit instead) and then sought civil remedy for an amount I don't owe. Oh, and they kept the deposit. To summarize: THEY BOTCHED A JOB AND THEN SUED THEIR OWN CUSTOMER. I was going to let sleeping dogs lie but now I'm going to use every consumer digital megaphone available. Just look at the photo! They were hired to spray foam my crawl space!! That's what they left...They claim this crawl space has been mitigated for pipes freezing."

Russ G on September 2023


Avatar for Best Buy Waterproofing, LLC

Best Buy Waterproofing, LLC

8950 State Route 108
4.93(
43
)
•Approved Pro

Best Buy Waterproofing, LLC

8950 State Route 108
4.93(
43
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
23 local quotes requested

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Dan was highly professional and offered an excellent evaluation of my needs. He actually went into the crawl space to better understand my needs. A good neighbor and a person to know. Thank you."

Arsalan S on November 2024

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Dan was highly professional and offered an excellent evaluation of my needs. He actually went into the crawl space to better understand my needs. A good neighbor and a person to know. Thank you."

Arsalan S on November 2024


Kamran Ohi P E

1025 Jefferson St NW
4.78(
165
)
•Approved Pro

Kamran Ohi P E

1025 Jefferson St NW
4.78(
165
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
34 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


Dadson Consulting, Inc.

3310 Noble Pond Way, Suite 201
4.85(
14
)
•Approved Pro

Dadson Consulting, Inc.

3310 Noble Pond Way, Suite 201
4.85(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
12 local quotes requested

Dadson Consulting, Inc. (DCI) is a structural engineering consulting firm located in Woodbridge in Northern Virginia. DCI performs structural engineering designs, construction plans preparation, inspection and evaluation of various structures including residential and commercial buildings. DCI also provides engineering designs of retaining walls, bridges and underground structures. DCI has registered licensed professionals and technicians who provide quality structural engineering designs with construction plans, specifications and notes. DCI strength lies in a combined foundation of experience and a dedication to always find the right solution, given all project factors.

"Job was completed in a timely manner. Advice was satisfactory but not anything special "

Peter C on May 2025

Dadson Consulting, Inc. (DCI) is a structural engineering consulting firm located in Woodbridge in Northern Virginia. DCI performs structural engineering designs, construction plans preparation, inspection and evaluation of various structures including residential and commercial buildings. DCI also provides engineering designs of retaining walls, bridges and underground structures. DCI has registered licensed professionals and technicians who provide quality structural engineering designs with construction plans, specifications and notes. DCI strength lies in a combined foundation of experience and a dedication to always find the right solution, given all project factors.

"Job was completed in a timely manner. Advice was satisfactory but not anything special "

Peter C on May 2025


Tadash LLC

2345 Battery Hill Circle
5.00(
5
)

Tadash LLC

2345 Battery Hill Circle
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

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Structural Engineering questions, answered by experts

Absolutely, as it ensures designs are viable and won’t compromise structural integrity.

While concrete walls do not need to "breathe" in the traditional sense of the word, they do require waterproofing and dehumidifying methods, particularly in basements below the water table. Concrete both contains moisture from its initial installation and can absorb water when exposed. Ensuring proper basement ventilation , installing a vapor barrier, and controlling water exposure are all important tasks.

The process of hiring a structural engineer starts by finding reliable professionals in your area and comparing quotes from at least three of them. From there, you can narrow down your selection by asking some leading questions:

  • Do you have experience working in my specific area?

  • Do you have professional indemnity insurance?

  • What will your structural report cover?

  • Do you charge a flat fee for a structural report or by the hour?

  • How long have you been in business?

  • Do you have a list of customer references?

Yes, an LVL beam is more affordable than the cost of a steel I-beam, totaling between $50 and $200 per linear foot as opposed to the $100 to $400 per linear foot you’d pay for a steel I-beam. Not only is the wood material more affordable than steel, but it’s also more similar to traditional wooden beams and doesn’t require as much retrofitting to connect joists.

Cathedral ceilings make a statement in your home, but at the cost of your attic space. Normal attics are wide open, which allows warm air to move around and exit your home. Because of this, cathedral ceilings make your home less energy efficient and put your ceiling at risk of venting issues if you’re not careful. They also reduce your attic storage space, potentially cause an echo, and even make it harder to change a light bulb.

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The Quantico, VA homeowners’ guide to structural engineering services

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