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Exterior Waterproofing Experts

4.83(
24
)
Approved Pro

Exterior Waterproofing Experts

4.83(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
17 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

4.50(
275
)
Approved Pro

JES Foundation Repair

4.50(
275
)
Approved Pro
Customers say: Super punctual
32 years of experience
Free onsite estimate

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


Avatar for OGV Structural Engineering

OGV Structural Engineering

4.96(
23
)
Approved Pro

OGV Structural Engineering

4.96(
23
)
Approved Pro
Super Service Award
Customers say: True professional
26 local quotes requested
10 years of experience

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, was very nice, arrived on time and was able to quickly identify which columns were load bearing columns, so that we could informed renovation decisions. He alo offered general useful information. We would use him again."

Jeanell H on September 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, was very nice, arrived on time and was able to quickly identify which columns were load bearing columns, so that we could informed renovation decisions. He alo offered general useful information. We would use him again."

Jeanell H on September 2025


Kamran Ohi P E

4.82(
155
)
Approved Pro

Kamran Ohi P E

4.82(
155
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
67 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


Greenvalley Design Group

No reviews yet

Greenvalley Design Group

No reviews yet
9 years of experience

We are a design build company specializing in new construction, additions, and renovations. As the technology and design/construction practices advance over time, we adapt accordingly to work with and meet our clients' needs. We provide our professional services and expertise to the clients from project design concept to the completion of construction, and we work along with all the trades involved as a team. Below is the list of our services: General Building Design for New Construction (Residential as well as commercial buildings and site structures) Building Renovation Miscellaneous Structural Design Specialty Engineering Load Surveys and Structural Analysis Building Evaluation Reports Peer Reviews and Plan Reviews Value Engineering Engineering Consultations Computer-Aided Design and Drafting Construction Administration Expert Witness

We are a design build company specializing in new construction, additions, and renovations. As the technology and design/construction practices advance over time, we adapt accordingly to work with and meet our clients' needs. We provide our professional services and expertise to the clients from project design concept to the completion of construction, and we work along with all the trades involved as a team. Below is the list of our services: General Building Design for New Construction (Residential as well as commercial buildings and site structures) Building Renovation Miscellaneous Structural Design Specialty Engineering Load Surveys and Structural Analysis Building Evaluation Reports Peer Reviews and Plan Reviews Value Engineering Engineering Consultations Computer-Aided Design and Drafting Construction Administration Expert Witness


Vodsil

No reviews yet

Vodsil

No reviews yet
24 years of experience

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

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


Huska Consulting, LLC

No reviews yet

Huska Consulting, LLC

No reviews yet
8 years of experience

Huska Consulting, LLC is a civil engineering consulting company which provides a variety of services with a specialty in site civil land development in and around the District of Columbia. It is a new startup with only one member: the founder Christopher Huska, PE.

Huska Consulting, LLC is a civil engineering consulting company which provides a variety of services with a specialty in site civil land development in and around the District of Columbia. It is a new startup with only one member: the founder Christopher Huska, PE.


Arhitectum LLC

No reviews yet

Arhitectum LLC

No reviews yet
24 years of experience

Arhitectum specializes in architecture and interior design for both residential and commercial projects. Arhitectum’s international experience includes both commercial and luxury residential projects. Over the years, we have received many prestigious design awards both for architecture and interior design projects, while delivering award-winning results and enduring value for our clients. With over 15 years of experience in architecture, our office turns into reality, with understanding, imagination and professionalism, the client’s dream.

Arhitectum specializes in architecture and interior design for both residential and commercial projects. Arhitectum’s international experience includes both commercial and luxury residential projects. Over the years, we have received many prestigious design awards both for architecture and interior design projects, while delivering award-winning results and enduring value for our clients. With over 15 years of experience in architecture, our office turns into reality, with understanding, imagination and professionalism, the client’s dream.


GIT, Corporation

No reviews yet

GIT, Corporation

No reviews yet
14 years of experience

GIT is a geotechnical engineering consulting firm serving the Washington DC and Metropolitan area. GIT provides a wide range of materials testing and inspections with soil, concrete, masonry, and asphalt testing technology.

GIT is a geotechnical engineering consulting firm serving the Washington DC and Metropolitan area. GIT provides a wide range of materials testing and inspections with soil, concrete, masonry, and asphalt testing technology.


The Jennings Group LLC

No reviews yet

The Jennings Group LLC

No reviews yet
42 years of experience

The Jennings Group is a professional building and remodeling contractor dedicated to satisfaction for each and every client. Our objective is to continue to meet the needs and requirements of our clients through our remodeling expertise and specialties in both the commercial and residential realms. We strive to deliver high-quality, cost-effective projects on schedule by employing and supporting motivated, flexible, and focused teams. We value the importance of our relationships and will continue to remain fair and true in our dealings with all employees, clients, vendors, and partners. Our clients count on our dependability, our drive, and our integrity. We take great pride in our accomplishments and build on them every day.

The Jennings Group is a professional building and remodeling contractor dedicated to satisfaction for each and every client. Our objective is to continue to meet the needs and requirements of our clients through our remodeling expertise and specialties in both the commercial and residential realms. We strive to deliver high-quality, cost-effective projects on schedule by employing and supporting motivated, flexible, and focused teams. We value the importance of our relationships and will continue to remain fair and true in our dealings with all employees, clients, vendors, and partners. Our clients count on our dependability, our drive, and our integrity. We take great pride in our accomplishments and build on them every day.

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Structural Engineering questions, answered by experts

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

Structural engineers typically conduct inspections during a home sale or renovation, looking for signs of structural damage in various structures throughout the building, such as load-bearing walls, joists, beams, roofing trusses, foundations, and chimneys. Some of the warning signs that structural engineers check for include:

  • Dry rot

  • Infestation

  • Shifting or cracking foundations

  • Erosion

  • Water damage

  • Sagging, shifting, or damaged walls, ceilings, or roofing support

Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.

No, beams are the primary load-bearers for flooring or roofing systems, and they distribute the weight of the structure to your foundational supports, while joists bear far less weight and distribute their loads to the beams. Beams are usually thicker and longer, and they have support posts or foundation walls beneath them for support.

Costs depend on unit complexity, labor, wall mounting needs, and additional accessories like floating shelves.

The Merrifield, VA homeowners’ guide to structural engineering services

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