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JES is the local leader for foundation repair, crawl space moisture control, concrete lifting and leveling, and basement waterproofing in Potomac MD. If you have concerns about your home’s condition, we’d be happy to take a look at no cost to you. We pride ourselves on identifying and diagnosing structural problems for homeowners throughout Potomac MD. JES offers free inspections and estimates – call today!

Our Customers Trust Us

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Aric Banks and JES were excellent to deal with!! I would definitely recommend them for any foundation issues.

Aric Banks and JES were excellent to deal with!! I would definitely recommend them for any foundation issues.

Jordan & Andy Wickstrom

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Rob Tennyson was Super! He walked me through this process with knowledge and expertise. Such a wonderful human being! . The gentlemen that …

Rob Tennyson was Super! He walked me through this process with knowledge and expertise. Such a wonderful human being! . The gentlemen that worked with him on the pool apron to lift the concrete, Bryan Rutherford and Diante, did a great job. Efficient and competent…This team worked well together to complete a difficult job and took problems in stride to see that the job was done well. These guys are hard workers.. lots to do ..and it was professionally and timely.

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Great job! Rob & Nick did a great job! Professional and very polite young men!

Great job! Rob & Nick did a great job! Professional and very polite young men!

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The team (Antoine, Troy, and Gerald) was polite, very respectful, and patient. They answered all my questions and were knowledgeable about…

The team (Antoine, Troy, and Gerald) was polite, very respectful, and patient. They answered all my questions and were knowledgeable about what they were doing. The work looks good and if needed I would use them again without question.

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I want to recognize Chris Jones with JES for providing one of the most thorough and professional home inspections I have ever experienced. …

I want to recognize Chris Jones with JES for providing one of the most thorough and professional home inspections I have ever experienced. I purchased my home in 2019, and since then I have been trying to solve a persistent HVAC-related problem. My home inspection identified the HVAC system as an area of concern, so I had it serviced, inspected, and cleaned before moving in. Despite that, the evaporator coils continued freezing. I hired one HVAC contractor, who found nothing wrong. When the problem persisted, I hired a second HVAC contractor after the coils froze again. I was again told everything appeared normal and was advised to keep the return vents clear and change the filter regularly. Over time, I also began noticing excessive humidity on the lower level after heavy rains, along with a mildew smell at the bottom of my stairs. The upper level remained cool and properly dehumidified, so I began to suspect the crawlspace. That's when I called JES and met Chris Jones. Before he even entered the crawlspace, Chris took the time to listen carefully to everything I had experienced over the years. He then invited me to accompany him during the inspection, explaining what he was seeing and educating me about the crawlspace as we went. Rather than rushing through the inspection, he methodically evaluated each area and answered my questions. The most significant findings were beneath the air handler. Chris discovered active moisture from a leaking return duct, a disconnected duct near the air handler with mold growth, and a dripping condensate line. These issues had gone undetected despite multiple previous HVAC inspections. What's even more impressive is that this was one of the tightest areas of the crawlspace—roughly 2½ to 3 feet high—yet Chris crawled into it, documented everything with photographs, and shared them with me. He didn't stop there. After I mentioned another area of concern, he willingly investigated it as well. Together we removed part of a wall covering and uncovered additional issues that otherwise would have remained hidden. At the end of the visit, Chris told me he wasn't sure JES would be able to help with all of the problems I had uncovered. What he didn't realize was that he already had. He found the root causes that I had been searching for since buying my home. Chris demonstrated something that is becoming increasingly difficult to find: integrity. He never tried to sell me something I didn't need. He simply performed an exceptionally thorough inspection, educated me throughout the process, and gave me the information I needed to finally understand what was happening in my home. Ironically, the most disappointing part of the experience was that I wasn't able to pay him for the level of expertise and effort he provided. I thought I was scheduling a crawlspace inspection, but what I received was one of the most valuable diagnostic inspections I've had in seven years. Thank you, Chris Jones. Your professionalism, persistence, and integrity are a tremendous asset to JES.

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Desmond K, James M, and Eric T were so kind and professional. I was initially really stressed about the entire project but they were…

Desmond K, James M, and Eric T were so kind and professional. I was initially really stressed about the entire project but they were knowledgeable and easy to work with. They did a great job. I would highly recommend.

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Mike was awesome. Made the experience so less scary than i had imagined. On time, professional and well knowledged and skilled. Defenately…

Mike was awesome. Made the experience so less scary than i had imagined. On time, professional and well knowledged and skilled. Defenately recomend.

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Seuris and John W. Did a great job! Very professional and made sure that I knew what they were going to do first before work was started. …

Seuris and John W. Did a great job! Very professional and made sure that I knew what they were going to do first before work was started. After the job was completed they took me threw the final walk and showed and explained everything.Thank you, Joan

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The guys from Tar Heel basement systems did a great job. They were outstanding, they didn’t waste no time, they kept on going and…

The guys from Tar Heel basement systems did a great job. They were outstanding, they didn’t waste no time, they kept on going and once they were finished, they had the job detail done to the T. They even showed me pictures. I loved it. Thank you guys. You did a great job and I feel so much better in my home. Now that it’s on stable ground.

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Corey was fantastic in taking his time to go over the issues in our crawl space. He explained everything and help educated us on our…

Corey was fantastic in taking his time to go over the issues in our crawl space. He explained everything and help educated us on our foundation and drainage problems. Very knowledgable and patient in answer all our questions and concerns.

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Abdul Jalloh is a tremendous field inspector. He is professional, courteous and a good communicator. He carefully explained the big scope…

Abdul Jalloh is a tremendous field inspector. He is professional, courteous and a good communicator. He carefully explained the big scope of the job and the details. He continued to answer all my questions to my satisfaction. Abdul has a strong knowledge of the housing and engineering areas of the project. He provided options. Abdul provided the trust factor I needed to have JES perform the work needed. I highly recommend the company and you would benefit from having Abdul as your field inspector.

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Jason came to our home was on time , very informative and explained to us clearly and concisely what we needed to do. He was not an…

Jason came to our home was on time , very informative and explained to us clearly and concisely what we needed to do. He was not an alarmist and was very reassuring

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JES was wonderful to work with. From our initial inspector, to anyone I spoke with on the phone, to the guys who did the work for our crawl …

JES was wonderful to work with. From our initial inspector, to anyone I spoke with on the phone, to the guys who did the work for our crawl space – everyone was knowledgeable, easy to communicate with, courteous, and answered all my questions. I highly recommend them

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4 star due to scheduling issues I had and having to call to get the work completed.Joe Crossfield/David Gaskins/Larry and crew were…

4 star due to scheduling issues I had and having to call to get the work completed.Joe Crossfield/David Gaskins/Larry and crew were great.Joe was the sales guy that came out to quote us for the work. He was very polite and was honest about what needed to be done. He didn’t upsell us on any add ons and helped us save a little bit of money by offering alternatives for the encapsulation project.Larry and crew: they came and did the work and did a great job. Cleaned up after themselves and completed the work. Not sure if it was the day or the overwhelming work the crew had, but I felt like I was rushed when I asked questions and felt like an inconvenience when I did asked questions. So I didn’t appreciate that.David Gaskins: was polite and explained how to clean the dehumidifier and all that. Explained what the RH% should be in the crawlspace and showed me how to work the dehumidifier. I originally called because I wanted my encapsulated crawlspace to be at 40% RH but it wasn’t getting there. He explained to me that it is possible for the machine to get down that low but explained the issue that I may have with my foundation and wood beam. He was very honest and did not rush me when I was asking the questions.Cons:-After paying the deposit, I had to give the office a call to schedule my appointment. I would think that they would call me to schedule and get it on the books, but that did not happen.-the scheduler scheduled the encapsulation, but not the electricians subcontractor. You would think that they should schedule the electrician first before the work so that the work is totally complete once the crew comes. I ended up calling the office, getting the phone number to the electricians, and calling the electricians myself to get something scheduled since the office could only email the subcontractor to be put on the books.

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Excellent customer service & explanation during inspection. I have a concrete slab with a large crack, and other signs of it having sunk…

Excellent customer service & explanation during inspection. I have a concrete slab with a large crack, and other signs of it having sunk in places. It's been overwhelming to wrap my head around how such a thing gets fixed (this is my first home,) and this appears to be an awful issue to have. I decided to start with Groundworks for an inspection. Booking was very easy. Brendan was my inspector, and he immediately made me feel comfortable & confident about the project. He called the day before to talk about my issue, & texted before arriving at my home. He was incredibly thorough in his inspection. He talked me through everything he was seeing & listened to my concerns. He had to explain A LOT to me about concrete & how it is effected by weather, water, soil changes, etc. He was patient & kind. He inspected the house inside and out, and we talked about the slab project & also my crawl space, which has issues that are likely effecting the slab. Brendan sat down & showed me several videos explaining what was going on with the slab & crawl space, and how Groundworks would go about fixing both. He even called one of his colleagues, a project foreman, to answer something he wasn't certain about. We spoke to the foreman together on speaker phone, so I could ask follow up questions & fully understand the best option for fixing my slab. Together, Brendan & Chris recommended we stabilize my slab as compared to lifting it, bc I have pipes inside the slab & I'm doing polished concrete for the final flooring. (we can make the floor level in that process). Stabilization will involve demo work to pull up the existing parquet flooring & drilling small holes in the concrete at various spots to inject the polymer which will replace eroded soil under the slab, fill any gaps where moisture & water have penetrated & thus, secure the slab. Brendan explained all the warranty & continued services they will provide to make sure the slab continues to be in good shape. The price was well below the number I had swimming around in my head. I thought it would be $30k or more, but it's approx $10k. I couldn't believe it. The work also can be done over 2 days, which blew my mind. The work will take place in a couple weeks. I will do a follow up review about that, and also the crawl space project. I feel comfortable with Brendan advising me on my house projects & confident in what will happen. I finally have piece of mind that my house will be fixed properly & not become the money pit nightmare I feared.

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Chad Edward's did a wonderful very professional and knowledgeable. Thanks ?

Chad Edward's did a wonderful very professional and knowledgeable. Thanks ?

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The JES Team (Gaston Ellis, Junius Harvey and Thomas Jackson) did a great job of encapsulating our crawl space and installing a…

The JES Team (Gaston Ellis, Junius Harvey and Thomas Jackson) did a great job of encapsulating our crawl space and installing a dehumidifier. They were polite, answered all our questions, always on time and it was obvious they took great pride in their work. We appreciate their hard work!

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Mike, Tyler, and Nick (Colorado Springs) did a superb job of raising the concrete slab on our lower level. Very impressed with the…

Mike, Tyler, and Nick (Colorado Springs) did a superb job of raising the concrete slab on our lower level. Very impressed with the quality of work they did.

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Phillip sets the standard for exemplary customer service, professionalism, and knowledge. His service work on equipment in my crawl space…

Phillip sets the standard for exemplary customer service, professionalism, and knowledge. His service work on equipment in my crawl space was five star! His understanding of the challenges a cracked beam presents allowed him to explain the repair process clear and concisely. I went with JES on encapsulating my crawl space and replacing almost half of the massive joists several years ago; I'm absolutely sticking with them on shoring up the beam. Yes, they are expensive; their quality work is worth every penny!

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Great job! Thank you to Zach and his crew (Christopher Henry, Tanner, and Caleb). Job looks great. You all went the extra mile for us….

Great job! Thank you to Zach and his crew (Christopher Henry, Tanner, and Caleb). Job looks great. You all went the extra mile for us. Thanks!

Christine Palazzolo

JES Foundation Repair service area map of the Mid-Atlantic region.

Our Locations

Baltimore

8361 Town Center Ct
Nottingham, MD 21236

Fredericksburg

311 Central Rd.
Suite 2-02
Fredericksburg, VA 22401

Hampton Roads & NE NC

2569 Quality Ct
Virginia Beach, VA 23454

Northern VA & DC

7940 Gainsford Ct.
Bristow, VA 20136

Richmond

309 Quarles Rd
Ashland, VA 23005

Southwest Virginia / Roanoke

2033 Cook Dr.
Salem, VA 24153

Western Virginia

456 Old Courthouse Rd
Appomattox, VA 24522

Winchester

45 W Boscawen St,
Winchester, VA 22601