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Dehumidifier in crawl space

Crawl Space Repair & Encapsulation

The crawl space under your house may be out of sight, but it should not be out of your mind. A lot more could be going in the crawl space than you realize.

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Have you noticed musty odors in your home but can’t pinpoint where they are coming from? Do your floors feel like they are sagging, bouncy, or uneven? Have you spotted more bugs in your home than usual? These issues indicate the presence of crawl space problems. Many southern homes in areas like Charleston, Columbia, Greenville, and Savannah were built with a crawl space foundation. While this helps to elevate the home and give it a buffer between the ground, a crawl space can be a volatile environment impacting the rest of the home. Your home could sustain structural damage and your family’s health could be in danger if mold and pest droppings are present.


Causes of Crawl Space Damage

Your home could have been having these problems since day one. The biggest cause of crawl space issues has to do with the way your home and crawl space were constructed.

Crawl spaces typically have dirt crawl floors that are not covered. Simply placing a 6-mil plastic liner on the floor, which is a minimal code requirement, will not cut it. This liner is thin, allows water and moisture to collect, mold to grow and thrive, and leads to a variety of damage. Other liners with thicknesses of 10 and 12-mil are only slightly better, but they still can easily tear and fail.

Water and moisture also can have a significant impact inside your home, as well. If you have a dirt crawl space with open vents, this allows outside air, water, and pests inside the crawl space directly underneath your house to cause a host of problems. More than 50% of the air you’re breathing indoors comes from below-grade areas like crawl spaces. So, whatever is in your crawl space such as mold, moisture, and humidity, also is in the rest of your house and affecting you.

One example of a structural impact is with the support system under your house. If wooden support systems become saturated with water or exposed to high humidity and excessive moisture, they can rot and buckle. Metal supports also will corrode and rust in the same conditions. All this then leads to sagging, uneven floors and problems with hardwood floors. 

The stack effect is the airflow pattern in your house from bottom to top. Air pressure also comes into play. Air flows from areas of high pressure to areas of low pressure. When there is a greater difference between indoor and outdoor temperatures, the more significant this airflow becomes.

True, you can’t actually see airflow, but it might be helpful to have a way to visualize the stack effect to better understand it. Your home certainly is not located in the northern portion of the country, but a lot of good information can be gained from The Cold Climate Housing Research Center’s YouTube videos, including “Your Nothern Home: Stack Effect” that illustrates the stack effect. 

Award-Winning Service

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Jerrod M, Noah J, and Azim D all very professional. On time, stayed on schedule. Work completed to my total satisfaction

Jerrod M, Noah J, and Azim D all very professional. On time, stayed on schedule. Work completed to my total satisfaction

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Justin Munn, Cory Winters, Kenneth Capps and Tommy Hudson just left from completing the project. They were very professional and did a…

Justin Munn, Cory Winters, Kenneth Capps and Tommy Hudson just left from completing the project. They were very professional and did a great job of clean-up afterward. We it came to the foundation problem these people were the best.

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Kevin did an amazing job. I felt comfortable with him coming to our home and he gave a very fair quote for the work needed. Would…

Kevin did an amazing job. I felt comfortable with him coming to our home and he gave a very fair quote for the work needed. Would definitely recommend him.

Sean and Emily Gilstrap

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We’d been having a mysterious moisture problem in our basement for a while that no one seemed to figure out. I called yesterday and was…

We’d been having a mysterious moisture problem in our basement for a while that no one seemed to figure out. I called yesterday and was lucky enough to have Clint Weimann do our inspection today. He was extremely knowledgeable and professional. He quickly diagnosed our problem and came up with a solution with several financing options available. I’m looking forward to having this problem fixed once and for all!

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I would like to give a Shout Out to Scott Wingard of Mount Valley Foundation Cayce, SC for his excellent work repair. His personality and…

I would like to give a Shout Out to Scott Wingard of Mount Valley Foundation Cayce, SC for his excellent work repair. His personality and expertise complemented his work! Thanks Mount Valley Foundation Cayce, SC!

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Phil came out and walked us through what our issues were and was very professional, explained the next steps and scheduled the project. The …

Phil came out and walked us through what our issues were and was very professional, explained the next steps and scheduled the project. The project was finished today and the crew was very professional and did a great job… very happy.

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Trevor Lucas and Alex did amazing work. They were on time and very professional. We will definitely be recommending them to anyone looking …

Trevor Lucas and Alex did amazing work. They were on time and very professional. We will definitely be recommending them to anyone looking for work done. We are very happy with their work.

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Miles was so informative, knowledgeable and so incredibly thorough. He more than exceeded my expectations. John, Justin and Yannis we’re…

Miles was so informative, knowledgeable and so incredibly thorough. He more than exceeded my expectations. John, Justin and Yannis we’re kind, thorough, responsible, and incredibly communicative through the whole construction process. Would certainly do this again.

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Alex, Redareck, and Desmond did an excellent job sealing the crawl space, and installing a dehumidifier. They cleaned area perfectly. We…

Alex, Redareck, and Desmond did an excellent job sealing the crawl space, and installing a dehumidifier. They cleaned area perfectly. We are highly satisfied. They were very professional.

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Scott Mcclosky was my certified inspector. He was very knowledgeable, and patient. He outlined all the work that needs to be done in a…

Scott Mcclosky was my certified inspector. He was very knowledgeable, and patient. He outlined all the work that needs to be done in a simple well designed manner. He gave me many options for repairing my foundation.

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The consultation and the work performed was amazing.Cory Hawkins, Oscar Mota, and Brandon Waters explained the entire process and kept me…

The consultation and the work performed was amazing.Cory Hawkins, Oscar Mota, and Brandon Waters explained the entire process and kept me updated throughout the 3 day job. The only reason for a 4 star is due to the scheduling process, as it was horrific to say the least. Permitting not completed and job scheduled and then job rescheduled more few times. Outside of that, the team was very professional and did a great job cleaning up.

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they need more then days Job was not completed in the schedule time.

they need more then days Job was not completed in the schedule time.

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Jacob, Landon and Patrick are the best. After finding the job would be more than they expected they persevered and did a beautiful job by…

Jacob, Landon and Patrick are the best. After finding the job would be more than they expected they persevered and did a beautiful job by removing insulation and encapsulating the crawl space .They were personable, professional and really cared about going above and beyond. We recommend Mt Valley Foundations and commend their workers for a job well done!

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Randall, Hunter and Branson did an excellent job and in a very timely manner. The first day was rainy and cold but they did what was…

Randall, Hunter and Branson did an excellent job and in a very timely manner. The first day was rainy and cold but they did what was needed. Randall ensured I understood was the crew was doing and kept me updated. I will gladly pass along my satisfaction and tell folks to ask for this crew!

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We had driveway concrete lifting, leveling and repairs performed by Carnell with Mountain Valley Foundation. Our customer experience was…

We had driveway concrete lifting, leveling and repairs performed by Carnell with Mountain Valley Foundation. Our customer experience was top of the line! Carnell arrived promptly; kept us informed every step of the process; updated us on what to expect; he was very professional; experienced; courteous; personable; friendly and assured us if the process. When the process was completed-he provided information on the drying process, etc. Thank-you Carnell for your great service!! Greatly appreciated!!

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Jack Jeffers was absolutely wonderful to work with. He confirmed the appointment for the next day. He showed up exactly on time. He was…

Jack Jeffers was absolutely wonderful to work with. He confirmed the appointment for the next day. He showed up exactly on time. He was friendly, professional and knowledgeable about how and what was needed and also the steps that needed to be taken before and after their service. I can highly recommend using Jack and Mount Valley Foundation if you want the work to be done right the first time!

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What a GREAT experience!!!We choose Mount Valley Foundation Services to lift a section of our in-ground pool concrete that had…

What a GREAT experience!!!We choose Mount Valley Foundation Services to lift a section of our in-ground pool concrete that had settled.Joseph Willis and Perryon Jones were the Technicians who arrived and performed the work. They took the time to explain everything prior to working and then afterwards they took the time to review the project and answer any questions we had.Excellent repair work.If we have a future need, we will call them again.

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Nathan Bligen, Brady McDowell, Tyler Williams, and Danny Goings did a great job. Nate and his crew were very informative, professional,…

Nathan Bligen, Brady McDowell, Tyler Williams, and Danny Goings did a great job. Nate and his crew were very informative, professional, very courteous and completed this job and just 2 and half days! I would definitely recommend this crew to my friends and family without hesitation.

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This was a very nice experience. John, Justin and Yanni arrived right on time. Worked diligently and did a fantastic job of lifting my…

This was a very nice experience. John, Justin and Yanni arrived right on time. Worked diligently and did a fantastic job of lifting my porch. They were respectful and professional. I really couldn’t have asked for better service. Highly recommend.

J. Shawn Deladurantaye

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So far, so good. David Tillett did a thorough job in finding the water sources and presenting a plan for remediation with flexibilty. I…

So far, so good. David Tillett did a thorough job in finding the water sources and presenting a plan for remediation with flexibilty. I am looking forward to seeing the rest of the process work out.Well, it's been 8 months and we've had several major rain events. My basement is still dry and I am very pleased with Mount Valley.

Is Crawl Space Repair and Encapsulation the Right Solution for Me?

Most crawl spaces have open vents when they are built. This traditional practice was meant to allow air to freely enter and exit the crawl space in order to curb problems like mold growth and moisture and humidity buildup. Foundation experts have more recently found the reverse to be true, however, and that those problems often stem from vented dirt crawl spaces.

While having a vented dirt crawl space underneath homes is common throughout areas in South Carolina and nearby, its side effects are far from safe. Because of the region’s wet, humid subtropical climate, unstable crawl space conditions can lead to structural instability and health problems.

To combat these issues, it is important to invest in quality crawl space repair and encapsulation solutions such as vapor barriers, vent covers, interior drainage systems, sump pumps, and dehumidifiers. To get started with creating a safer and healthier home, contact our experienced and friendly team at Mount Valley Foundation Services today to schedule your free inspection and repair estimate.

FAQs

We are committed to your satisfaction and your home’s safety. That is why we only use the very best repair solutions. The products we use are manufactured right here in the United States, and they are tested and proven to effectively work in keeping your crawl space clean, dry, safe and healthy. All these solutions also are designed to work together to give you the most bang for your buck and prevent any further problems. 

Here is how we tackle crawl space problems, as well as the solutions we use and how they work: 

  • Address Leaking Water — To address seeping water, we first need to catch the water, then get this water to a sump pump system, and then send this water away from the home.  

    Our specially designed CrawlDrain™ perimeter drainage system is placed in the dirt crawl space floor around the perimeter to catch seeping water from the walls and floor. The drainage channels then direct this water into the SafeDri™ Crawl Space Sump Pump System, which then pumps the water out of the crawl space and away from the home.  A FreezeGuard™ also can be attached to the exterior sump pump discharge line to prevent flooding if the line should freeze or become blocked. 
  • Seal the Crawl Space from Outside Elements — It is important to seal your crawl space from outside air, water and pests. The first step is having durable vent covers placed over the crawl space vents. 
     
    Then, a heavy-duty moisture and vapor barrier is installed. Our CrawlSeal™ is a true 20-mil liner rated above 25-mil strength at the seams. This liner, which is three times thicker than builder’s grade liner, is used to completely isolate the crawl space from the earth. CrawlSeal™ prevents moisture and vapor intrusion, is waterproof, and has been treated to resist mold. 
     
    Additionally, thick drainage matting can be placed on the crawl space floor before the encapsulation process to help direct water to the perimeter CrawlDrain™ system, as well as enhance the strength of the CrawlSeal™ liner. 
     
  • Properly Insulate the Crawl Space — Rigid ExTremeBloc™ panels placed on crawl space walls will better insulate the area and will not fail or develop mold like fiberglass insulation. These panels resist moisture, and an integrated termiticide is added to deter termites below grade. CrawlSeal™ also helps insulate the crawl space, and spray foam can be added to rim joists to seal gaps around the perimeter of your foundation. These insulation methods help prevent wood rot and enable termite treatments. 
     
  • Condition the Air — Our low-profile crawl space dehumidifier is powerful and energy efficient. It effectively works to clean and filter the air, control moisture and humidity, and reduce odors and potential mold growth. This dehumidifier also is self-draining, meaning there aren’t any reservoirs or buckets to have to worry about emptying. The unit can be directed to drain into the crawl space perimeter drainage system or sump pump system, or a condensate pump can be installed. 
     
  • Reinforce Support Systems — Wooden floor supports and light-duty jack posts commonly fail in wet and humid crawl spaces. Our durable IntelliJacks™ are made of galvanized steel, making them more reliable supports that can stabilize and lift sagging floors and floor joists back to level. 

When you contact us, you can speak to one of our customer care representatives about your crawl space concerns. We will then work with you to schedule an appointment for a free inspection and estimate with one of our certified field inspectors.  

Here’s what you can expect during this consultation. The inspector will:  

  • Complete a thorough evaluation of your home’s interior and exterior. This includes going into the crawl space to check the condition of the area including any water intrusion, damage, pests, etc.  
  • Discuss his findings with you, as well as your goals with a repair project.  
  • Offer customized solutions that best fit your repair needs.  
  • Provide you with a proposal of recommended solutions before leaving your house.  
  • Discuss payment and financing options with you. 

Then, if you decide to move forward with a repair project, we will work to schedule your repairs with one of our highly trained installation crews. Our crew members will treat your home as their own, with the utmost care and respect. They will use world-class solutions for your repairs, and their work is not complete until you are 100% satisfied with the job. If something crops up after installation, we will return to fix any issues. We also offer various service and maintenance opportunities to protect our work and your home.  

Along with writing a review about your experience with us, it would mean the world to us if you would refer us to your friends and family! 

Now that you’ve seen what nastiness could be lurking underneath your feet and the toll it can take on your home and your family, aren’t you motivated to get rid of it? As tempting as it might be to head out to your local home improvement store to gather supplies, pause for a moment.  

Crawl space repair is not something you can tackle in a weekend, no matter how handy you are. A lot can go wrong, and we have seen many problems result from fast fixes. Especially concerning real estate transactions, quick fixes can raise red flags. You’ll then have to spend more time and money to repair these issues. It’s best to leave these projects to professional contractors so the problems will be fixed correctly the first time around. 

We encourage you to educate yourself to make the best decision and sound investment with trustworthy repair solutions from a reliable contractor. 

Why would you want disgusting conditions underneath your home? That alone should be enough for you to want to correct the problems. But you might be wondering, “what’s in it for me?” A lot, actually. There are so many benefits of having a clean crawl space, which you can read about in our blog, “10 Reasons to Clean Your Crawl Space This Season.” Here are a few of the major perks:  

  • Health — A cleaner crawl space means improved health for you and your family. Especially if anyone in your house suffers from asthma or allergies, a cleaner crawl space can help prevent flare-ups and sickness. If you choose solutions like a dehumidifier, the air quality will be greatly improved throughout the entire home. 
  • Structural Integrity — Compromised support systems and sagging floors are dangerous and could result in significant structural damage and safety hazards. By shoring up the support system in your home, you will have a more stable living environment for your family. 
  • Energy Efficiency — When you invest in proper, reliable crawl space encapsulation and insulation to reduce energy loss, you can save between 30 and 50% on your energy bills. (Source: Clean Crawls)
  • Functional Space — Once your crawl space has been properly waterproofed, sealed and insulated, you have an area of your home you can use in a new way. You’ll be able to store your belongings in the crawl space without worrying about them being damaged by water, mold or pests. 
  • Real Estate Value — There are a lot of factors that impact a home’s resale value, but issues with the structure, any water intrusion and crawl space problems are all areas you need to be aware of. When selling your house, it is important to disclose any known past or current damage. This sets clear expectations regarding the quality and condition of the home. Homeowners selling their house in South Carolina are required to provide a written disclosure statement to the purchaser noting any known defects. This includes information on the foundation, basement and other structural components, as well as current or prior infestations of wood destroying insects or organisms. (Source: Nolo

If you take a look online for instructions on how to fix your crawl space vapor barrier, you will find there are many DIY tutorials available. Many homeowners think installing a vapor barrier will not take long and won’t be too complicated. After all, it is possible to purchase all the materials you need to do it yourself at your local expert supply store. 

At Mount Valley Foundation Services, we have installed many crawl space vapor barriers over the years. We can tell you that this is not an easy task, and it is not something that many people can figure out just by watching an online tutorial. If anything goes wrong or you make a mistake, you will still have to contact a professional to complete the task. Therefore it is best to contact our team and have your new vapor barrier installed by members of the oldest foundation services companies in all of South Carolina. 

Contractors once believed that placing vents on the walls of crawl spaces would help improve the airflow in these dark and humid areas. But over the years, we have learned that crawl space vents do more harm than good. They allow moisture to enter into the crawl space, which can promote mold growth and affect the internal temperature of your home, causing your energy rates to rise. 

Crawl space vent covers are the ideal solution to this problem, and they do not take long for our professionals to install. Our crawl space vent covers are made from solid and durable materials, and they are designed to prevent moisture and pests from entering your crawl space. 

If you think you could benefit from installing our vent covers, get in touch with us at Mount Valley Foundation Services today. 

Why Crawl Space Repair and Encapsulation Are Needed

As we have mentioned, your home and family can be significantly impacted by crawl space problems. Here are just a few ways you can benefit from trusted, permanent repairs:

open crawl space vent

Avoid Exposure to the Elements

Vented crawl spaces are open to exterior elements prevalent in the region including summertime heat and humidity, year-round precipitation, and coastal storms. Your crawl space can easily flood or sustain other water or moisture-related damage. But with airtight vent covers, waterproofing measures, and encapsulation with a vapor barrier, your crawl space can stand up to the toughest weather challenges.

sagging crawl space

Prevent Structural Damage and Instability

Your crawl space most likely contains your home’s support system made up of beams, girders, and floor joists. Excessive water and moisture within the crawl space can attack these wooden structures in the form of wood rot. Termites also can find their way inside and feast on wooden joists and other supports. These problems can be seen and felt in sagging, uneven floors that are not properly supported. Proper crawl space encapsulation with moisture control measures can save your wooden supports, and specialized crawl space support jacks can stabilize and help lift sagging floor joists.

crawl space encapsulation

Create an Unappealing Environment for Pests

Pests like bugs and small animals love nothing more than an isolated, dark, moist area like your crawl space to call home. Crawl space encapsulation acts as a moisture control measure that reduces pests’ interest in the space. Plus, solutions including airtight vent covers and doors, a thick vapor barrier, and durable, termiticide-integrated insulation panels help make it difficult for pests to access your crawl space.

Common Crawl Space Repair and Encapsulation Tips & Mistakes

Mistakes to Avoid:

Tips to Consider:

Find your service area

COLUMBIA. SC

Columbia, SC

Your home’s foundation is impacted by the poor soil; muggy weather and the heavy rain Columbia receives. MVFS has proven solutions to solve your crawl space, wet basement, or foundation problem.

GREENVILLE, SC

Greenville, SC

Homeowners in Greenville, SC, deal with a wet basement and crawl spaces often. The experts at MVFS can permanently repair your basement, crawl space, or foundation before your home is at risk of failure.

Charleston, SC

Charleston, SC

Homeowners in Charleston take pride in their homes. When foundation, crawl space, or wet basement problems plague them, they turn to Mount Valley Foundation Services. For more than 35 years, MVFS has been the trusted name in foundation repair.

Charleston, SC

Myrtle Beach, SC

Being located on the coast, Myrtle Beach has sandy soils that can be easily disturbed by heavy coastal rains. Myrtle Beach gets 52 inches of rain every year, so this can be an issue. However, Mount Valley has industry-leading solutions that protect your home.

SAVANNAH, GA

Savannah, GA

Clay soil and heavy rain are the culprits behind water in your crawl space and basement as well as foundation damage. Learn how MVFS can help.

Augusta, GA skyline.

Augusta, GA

Augusta has mostly clay soils which can be a serious issue for your foundation. Clay soil expands after heavy precipitation and pushes your foundation out of line. Mount Valley has solutions designed to stop this process from causing damage.

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    Mount Valley Service Map

    Our Locations

    Asheville Location

    53 N Market St, Suite 5
    Asheville, NC 28801

    Augusta Location

    630 Ellis Street, Suite 2-B
    Augusta, GA 30901

    Charleston Location

    1850 Ashley River Rd
    Charleston, SC 29407

    Columbia Location

    2110 Commerce Drive
    Cayce, SC 29033

    Greenville Location

    300 South Ave
    Spartanburg, SC 29306

    Myrtle Beach Location

    1704 N. Oak Street, Suite 3
    Myrtle Beach, SC 29577