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TRUSTED BY MARUMSCO, VA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon109
    Verified structural engineering services reviews

Find Structural engineers in Marumsco

"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

7940 Gainsford Court
4.24(
338
)
Approved Pro

JES Foundation Repair

7940 Gainsford Court
4.24(
338
)
Approved Pro
Customers say: Quality work
31 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

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
12 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 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
21 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


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
33 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


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


Avatar for ISMonitoring LLC

ISMonitoring LLC

7808 HAVENSIDE TER
No reviews yet

ISMonitoring LLC

7808 HAVENSIDE TER
No reviews yet
20 years of experience

ISMonitoring LLC has a deep background in structural engineering including analytical, numerical, and experimental methods. Our interests and experiences include structural design and analysis, steel design, reinforced concrete design, wooden structures, structural rehabilitation, condition assessment, and nondestructive evaluation.

ISMonitoring LLC has a deep background in structural engineering including analytical, numerical, and experimental methods. Our interests and experiences include structural design and analysis, steel design, reinforced concrete design, wooden structures, structural rehabilitation, condition assessment, and nondestructive evaluation.


Avatar for Tadash LLC

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



Avatar for P&R Property Solutions, LLC

P&R Property Solutions, LLC

10814 Courthouse Road
5.00(
3
)

P&R Property Solutions, LLC

10814 Courthouse Road
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

An Engineer owned & led Class A Construction Company *Foundation Repairs - We repair foundations that have cracked, been damaged by water or settled poorly. *Structural Modifications & Repairs - We reinforce the structural integrity of buildings and rearrange structures like basements, sled or foundation walls. *Residential Construction & Remodeling - New home construction, home expansion and remodeling.

"Fantastic engineering, superb work with outstanding finished product. HIGHLY RECOMMEND P&R Solutions"

Stephen M on March 2024

An Engineer owned & led Class A Construction Company *Foundation Repairs - We repair foundations that have cracked, been damaged by water or settled poorly. *Structural Modifications & Repairs - We reinforce the structural integrity of buildings and rearrange structures like basements, sled or foundation walls. *Residential Construction & Remodeling - New home construction, home expansion and remodeling.

"Fantastic engineering, superb work with outstanding finished product. HIGHLY RECOMMEND P&R Solutions"

Stephen M on March 2024

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Structural Engineering questions, answered by experts

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

Foundation cracks that are 1/8 inch wide or less, aren’t uneven across the gap, and don’t continue widening over time are usually just normal settling cracks and don’t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.

The primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

Yes, you can put a doorway in a structural wall; in fact, most exterior doors are set into structural walls. The project is a little more challenging than installing a door in a non-load-bearing wall because you need a structural engineer to assess the wall and make sure it’s safe to create a wall opening. Your engineer’s report will include instructions for your contractor on how and where to install additional supports, like steel headers above the door, to distribute the weight above to the wall on either side of the door.

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