Crawl Space
Repair Experts
in the DMV
Seal Out Moisture,
Mold & Musty Air for Good
We seal, insulate, and protect crawl spaces to eliminate moisture, improve air quality, and protect your home’s health from the ground up. From Arlington and Alexandria to Fairfax, Bethesda, and the greater DMV region, our team helps homeowners turn damp, unhealthy crawl spaces into clean, protected areas.
Get your free inspection
Is Your Crawl Space Causing Problems?
Warning Signs
You Shouldn’t Ignore
Most homeowners never see their crawl space, but when it’s unsealed, it can quietly cause serious damage. In Arlington, Alexandria, Fairfax, and nearby DMV communities, older vented crawl spaces, humidity, and drainage problems can lead to moisture, mold, wood damage, and poor indoor air quality.
Here are some signs it’s time to schedule a crawl space inspection.


Musty Odors in Living Areas
Smells rise from unsealed crawl spaces through your HVAC system.
High Indoor Humidity
Excess moisture often starts in the crawl space or the ground below your home.
Mold or Mildew Growth
Mold and mildew are signs of trapped moisture, poor airflow, or an unprotected crawl space.
Cold Floors in Winter
Poor insulation and damp air can affect comfort in the rooms above.
Sagging Floors or Rusted Ducts
Moisture can weaken supports, damage wood framing, and corrode HVAC lines.
Additional Usable Storage
A sealed, clean crawl space can become a functional area for safe, dry storage.
Proven Crawl Space Repair Systems
Seal, Insulate & Protect Your Home from the Ground Up
Our crawl space repair systems are tailored to your home, not a one-size-fits-all approach. We assess your crawl space structure, drainage, moisture levels, and airflow to design a solution that protects your foundation and improves indoor comfort.
For homes in Arlington, Alexandria, Fairfax, Bethesda, and throughout Northern Virginia and the DMV region, that often means addressing more than one issue at a time: moisture, insulation, drainage, access, humidity, and long-term protection.
Crawl Space Waterproofing
We install drainage systems and sump pumps to keep groundwater out, reduce standing water, and help protect crawl spaces in Arlington and nearby DMV homes from recurring moisture problems.
Full Encapsulation Systems
We seal crawl spaces with heavy-duty vapor barriers and insulation to block moisture, improve energy efficiency, and create a cleaner environment beneath the home.
Crawl Space Access Doors
Durable, airtight doors keep pests, humidity, and outdoor air from entering your crawl space.
Floor Joist & Beam Support
Reinforce sagging or weakened floors with steel jacks and supplemental beams to restore level support.
Crawl Space Repair FAQs
What DMV Homeowners Ask Most Often
Q: What is crawl space encapsulation?
A: Crawl space encapsulation is the process of sealing the crawl space with a heavy-duty vapor barrier, insulation, sealed vents or access points, and, when needed, a dehumidifier. For Arlington and DMV homes, encapsulation helps control moisture, reduce musty odors, and create a cleaner space beneath the home.
Q: How long does it take to encapsulate?
A: Most projects are completed in 2 to 4 days, depending on the size and condition of the space.
Q: Is it really necessary?
A: If your crawl space has standing water, musty odors, mold concerns, damp insulation, cold floors, or high humidity, repair or encapsulation may be necessary. Many older homes in Arlington, Alexandria, Fairfax, and the greater DMV region have crawl spaces that need better moisture protection.
Q: Will it help with heating and cooling costs?
A: Absolutely, encapsulation reduces energy loss and helps regulate temperatures.
Q: Do you offer warranties?
A: Yes. Our encapsulation systems include long-term, transferable warranties.
Q: Is financing available?
A: Yes. We offer affordable payment options, including 0% interest plans.
Q: Why Arlington & DMV Homes Need Crawl Space Repair
Many homes in Arlington, Alexandria, Fairfax, and the surrounding DMV region were built with crawl spaces that were never designed for today’s moisture-control standards. Older vented crawl spaces can allow humid outdoor air to enter, while poor grading, short downspouts, and exposed soil can add even more moisture beneath the home.
Over time, that moisture can lead to musty odors, mold concerns, insulation damage, wood rot, pest activity, and sagging floors. DMV Foundation Solutions inspects the full crawl space environment so we can recommend the right mix of encapsulation, waterproofing, drainage, insulation, and structural repair.
STILL HAVE QUESTIONS?
Can’t find the answer you’re looking for? Contact the DMV team and we will help. Whether you’re dealing with crawl space moisture in Arlington, musty odors in Alexandria, cold floors in Fairfax, or drainage issues elsewhere in the DMV region, our team can inspect the problem and recommend the right solution.
What Homeowners Are Saying
See Why DMV Is a Trusted Local Name
Posted on Google
Jonathan Voorhies
Richard, Nicholas and William were awesome! Very professional and friendly!! Communication was excellent! Highly recommend!Posted on Google
Jason Schmid
I cannot say enough great things about Richard, Nicholas and William - the amazing father and son team that came out today to do some waterproofing work in our basement today. They went above and beyond replacing our sump pump. They rearranged piping to make the space way more functional and usuble compared to the original piping. They were so friendly, answered all my questions and left the space cleaner than they found it. 10/10.Posted on Google
Dan Higgins
We had water coming into the basement after recent rains and DMV diagnosed the problem and fixed it for a fair and reasonable price. Very happy with the work they did and the price we paid. Definitely recommend!Posted on Google
Pat Ragland
The service was good the price was rightPosted on Google
Nina Voltaggio
DMV Solutions really helped us out by encapsulating our crawl space beneath our sunroom. The workers were on time and cleaned up very well after the work was done. We are very pleased with the job.Posted on Google
Curtis and Lara Smith
After struggling with a poor work done on our crawl space by a national company and no help to remedy even though we supposedly have a life warranty. We made it a priority to work with a local business. DMV was wonderful to work with, did't pressure us, explained their recommendation and answered questions in a super timely manner. Their quote was reasonable and best of all they didn't try to upsell us.Posted on Google
Nicholas Sykes
I am a huge fan of DMV Foundation Solutions. We recently moved into a new home with a list of items that needed attention. Then, after a heavy rain, we discovered another issue: water was flowing into a basement storage area. I called four or five foundation companies looking for consultations and quotes, and DMV Foundation Solutions immediately stood out. They were easy to schedule, responded quickly, and were extremely thorough in evaluating our home. They looked carefully at both the inside and outside of the property, reviewed the full report from our home inspector, and helped us think through how to prioritize the different repairs. The entire process felt collaborative and solutions-oriented. Their pricing was also the best we received, and they offered very supportive financing options. At that point, we were already excited to work with them. Then we met Richard, Nicholas, and William—the crew that completed the work—and they took the experience to another level. We were incredibly impressed by the quality of their work, their communication, and just how enjoyable they were to work with. This is easily the best team we have worked with on any repair or improvement to our home. They know what they are doing, take pride in their work, and consistently prioritize service, support, and finding the right solution. And they are fun and radiate the most positive orientation. I feel fortunate to have worked with this team and would explicitly request them by name in the future. We would happily work with DMV Foundation Solutions again, and I have absolutely no hesitation recommending them. If you have foundation, basement, crawl space, waterproofing, or related repair needs, I strongly recommend giving this team a call and having the conversation. From the initial evaluation through the completed work, they showed up at every phase of our engagement.Posted on Google
Travis “Trap Obama” Massenburg
Man... the job was projected 2+ days. They finished in one. I was also credited on a first job towards an overall improvement. They showed up on time, neat, and left the premises as clean as when they came. Big thanks to Richard, William and Nicholas for the hard work from DMV foundations.Posted on Google
Brandon West
We’ve had nothing but great experiences with DMV through a few projects. Timely and professional work. Highly recommend.Posted on Google
Ashley Schelske
Mauricio and Miguel and team did a fantastic job replacing our townhome’s walkway. Work was completed on time and it looks great!
Our Recent Work in Your Area
Crawl Spaces Transformed into Clean, Dry, Healthy Areas
Crawl space problems are common in the DMV, and we’ve solved them for homeowners just like you. Explore our case studies to see how we deliver clean, energy-efficient, and worry-free spaces.
Financing Available for Every Budget
Flexible Plans for Waterproofing, Encapsulation & Repair Services
Encapsulation doesn’t have to break the bank. Explore our flexible payment plans designed to fit your budget.
Contact DMV
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