Crawl Space Encapsulation & Repair
Addressing all of your crawl space’s issues will promote energy efficiency and comfort in your home.
Get Your Free EstimateCommon Crawl Space Problem Signs
If your crawl space begins to rot, grow mold, or experience structural problems, this will extend to every part of your home. At AFS Foundation & Waterproofing, we specialize in crawl space problems of all types.
Moisture in Your Crawl Space
Crawl space moisture leads to mold, pests, and unpleasant odors. AFS provides professional solutions to effectively dry out your crawl space.
Water in Your Crawl Space
Discover the causes and risks of water in your crawl space, and the urgency of addressing it for your home's well-being.
High Crawl Space Humidity
Learn about the causes of crawl space humidity and the effective moisture control solutions provided by AFS.
Bouncy Floors
Uncover the factors leading to bouncy floors and how AFS's solutions can safeguard the stability and safety of your home.
Award-Winning Service
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Ed Duffey at AFS came in clutch with our annual inspection. Just before his arrival, my kitchen flooded. Out of kindness, he vacuumed all…
Ed Duffey at AFS came in clutch with our annual inspection. Just before his arrival, my kitchen flooded. Out of kindness, he vacuumed all water that leaked into the crawl space and didn’t charge any extra! Along with doing his normal duties. Super nice guy! So glad I went with AFS to do my crawl space repair!
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I had my crawlspace encapsulated, and I can’t say enough good things about the whole process. I talked to Rhett to get everything set up….
I had my crawlspace encapsulated, and I can’t say enough good things about the whole process. I talked to Rhett to get everything set up. Awesome guy, kept me updated, and answered all my questions I had. The crew that came and worked on it did a phenomenal job, they even took the time to address any issues or answer ay questions. By far the best experience.
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Joel Aper came out and gave me an estimate. He was very thorough and coached me. One of the most important things for me is to understand…
Joel Aper came out and gave me an estimate. He was very thorough and coached me. One of the most important things for me is to understand how things work and why they need done. I couldn’t have asked for a better sales rep than Joel.
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Seamless! Everyone Joe, Joshua hand digging holes when hydraulic line blew, and Parris, professional and patient and explained everything!
Seamless! Everyone Joe, Joshua hand digging holes when hydraulic line blew, and Parris, professional and patient and explained everything!
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Braden was great! We highly recommend him as a technician! 5 stars for sure!!
Braden was great! We highly recommend him as a technician! 5 stars for sure!!
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Had to have water remediation due to a broken pipe. Water damaged the existing vapor barrier. Insurance company recommended we contact a…
Had to have water remediation due to a broken pipe. Water damaged the existing vapor barrier. Insurance company recommended we contact a large/national company for repair.AFS Knoxville sent a crew 2.5 hours to complete the encapsulation. Baron and Cody worked hard and did a wonderful job.AFS insured that they “kept us in the loop“ with phone calls and/or text messages.We are very happy with the encapsulation.Would definitely recommend AFS Dash Knoxville to anyone, looking to encapsulate their crawlspace/basement.
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Good presentation of the details of the work that was to be done
Good presentation of the details of the work that was to be done
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Evan, Aldo, and Jorge are the best, they souped up my base cross and made it 100% water safe and flood safe from water risked, unsafe to…
Evan, Aldo, and Jorge are the best, they souped up my base cross and made it 100% water safe and flood safe from water risked, unsafe to practically made to dealt with floods, truly I can crawl it in now without fearing for my life! Their determination is also amazing doing it just a single day and never quitting when they could have! Truly these guys are the real deal, 12/10 would recommend.
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Mr. Shelton was very professional and great at explaining everything for me to know and understand.
Mr. Shelton was very professional and great at explaining everything for me to know and understand.
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Thank you Jordan Pankey!!! The knowledge and communication you’ve had through this process with my crawlspace has been amazing! I cannot…
Thank you Jordan Pankey!!! The knowledge and communication you’ve had through this process with my crawlspace has been amazing! I cannot thank you enough!
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Emmett W. Excellent service technician… Polite, positive, respectful, diligent, ….shared photos and took the time to explain his work…
Emmett W. Excellent service technician… Polite, positive, respectful, diligent, ….shared photos and took the time to explain his work and inspection.
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Shout out to our crew Evan ,Aldo, Jorge and Colton. They were very professional . The job looks great. Couldn’t have asked for better…
Shout out to our crew Evan ,Aldo, Jorge and Colton. They were very professional . The job looks great. Couldn’t have asked for better outcome. Very hard workers.
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Matt Carter thank you very much.
Matt Carter thank you very much.
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AFS did a fabulous job in my crawl space in very hot & humid weather, I couldn't be more pleased, huge thanks to Branden,Sara, Chris &…
AFS did a fabulous job in my crawl space in very hot & humid weather, I couldn't be more pleased, huge thanks to Branden,Sara, Chris & Gavin!!! Hope you guys are blessed daily!!! Thanks again
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We were really happy we choose AFS to work on our foundation issues. The inspector Chase Griffith was so thorough in his inspection and…
We were really happy we choose AFS to work on our foundation issues. The inspector Chase Griffith was so thorough in his inspection and explanations of the issue and recommended remedy that it gave us complete confidence in the plan. When the team showed up to perform the work that confidence continued with foreman Tyler Moreland. He was always explaining what they were doing, referring back to the plan, and asking and answering any questions we had. I would definitely recommend them and, in fact, I already have. A neighbor asked me about them and their work and I wholeheartedly endorsed this company to them.
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Excellent Foundation Support to the 60-year old addition to a 74-year old home. The staff was efficient and completed an estimated…
Excellent Foundation Support to the 60-year old addition to a 74-year old home. The staff was efficient and completed an estimated three-day job in two days after a heavy rain! Large equipment was even maneuvered around retaining walls and awnings which were part of the existing home. Job was also completed around the existing gas outlets, water discharge for washer and large AC unit in the middle of the job site. John, Darien, and DKota did a great job!
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Our porch stairs had settled and since the brick is no longer available, we opted to try and lift and stabilize the existing stairs. AFS…
Our porch stairs had settled and since the brick is no longer available, we opted to try and lift and stabilize the existing stairs. AFS was very responsive and proposed a pier system. They were very communicative and arrived on time to do the work. Their crew, Andres, Jordan, and Joshua worked in a very professional manner to quickly complete the job. They were as careful as possible to leave a minimum post-work footprint, and the property looked good when they left. The lift and stabilization procedure was successful and we are satisfied customers. We would recommend AFS for this type of work.
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jackson,mikey and brandon was amazing very professional and very respectful top notch thank you guys for all you do god bless
jackson,mikey and brandon was amazing very professional and very respectful top notch thank you guys for all you do god bless
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AFS came out to my house and did a fantastic job with my basement . They were very professional and did quality work in a timely manner. I …
AFS came out to my house and did a fantastic job with my basement . They were very professional and did quality work in a timely manner. I definitely recommend them for any of your basement or crawlspace needs . I gave 5 stars because they did everything they promised me and went past my expectations with the installation. Evan Jensen and his crew Aldo ,Jorge, and Nick M. Were outstanding !! Mike was okay! 😆
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Alan Nunalee is an excellent service technician. He does a through job and is very helpful and polite. He took his time and went out of…
Alan Nunalee is an excellent service technician. He does a through job and is very helpful and polite. He took his time and went out of his way to provide the best service. Highly recommend Alan he is a 10 out of 10!
Crawl Space Repair Solutions
If you’re having a problem with your crawl space, you’ve come to the right place. Whatever your issue, we have the products and experience that you need to find the best solution.
Crawl Space Insulation
Effective crawl space insulation tackles crawl space moisture and escalating energy costs. Learn about our innovative solution!
Crawl Space Dehumidifier
Get superior crawl space moisture management with AFS's innovative AquaStop™ Crawl Space Air System.
Crawl Space Sump Pump
Discover how AFS's crawl space sump pumps remove standing water and create a healthier living space!
Crawl Space Vapor Barrier
Seal out water by installing a vapor barrier from AFS. Our superior system controls moisture and creates peace of mind.
Is Crawl Space Encapsulation the Right Solution for Me?
Have you ever wondered if those vents in your crawl space are really doing their job? For years, the common wisdom was that venting a crawl space would keep it dry by “airing it out.” But those vents often allow more moisture in, turning your crawl space into a breeding ground for mold and mildew. With higher humidity levels sneaking in through the vents, your home’s foundation may suffer from ongoing moisture issues that can compromise indoor air quality and even lead to structural damage.
That’s why crawl space encapsulation has become the go-to solution for many homeowners. Encapsulating your crawl space seals it off from outside moisture, transforming it from a damp, neglected area into a clean, dry, and usable part of your home.
Beyond just protecting your foundation, encapsulation boosts energy efficiency, keeps your indoor air healthier, and adds long-term value to your home. If you’re looking for a smarter, more effective way to control moisture and maintain a healthier living environment, crawl space encapsulation could be the perfect solution.
AFS Foundation & Waterproofing Specialists has been providing cutting-edge crawl space encapsulation products for more than 20 years. Our durable 120-mil-thick vapor barrier, combined with AquaStop™ thermal Insulation board, state-of-the-art sump pump systems, and high-capacity crawl space dehumidifiers, keeps your crawl space dry and greatly improves your home’s indoor air quality.
Why Is Crawl Space Waterproofing Needed?
Crawl spaces are often out of sight and out of mind, but if left unprotected, they can lead to serious issues. Many older homes still have exposed or vented crawl spaces, which can allow moisture, pests, and even mold to take hold. Here are the key reasons why an encapsulated crawl space is essential for a healthy, stable home:
Water Damage
Water damage is one of the biggest threats to your crawl space. A breakdown in the sump pump, cracks in the crawl space door, plumbing leaks, or foundation shifts can introduce moisture, transforming a dry crawl space into a damp, musty area. Over time, this can lead to mold growth, wood rot, and damage to your home’s foundation. Addressing the root causes of water damage first, followed by a professional waterproofing solution, keeps your crawl space dry, healthy, and protected.
Exposure
In many older homes, the crawl space is fully exposed or vented to the outside air, which allows moisture and humidity to enter freely. Encapsulation creates a sealed barrier that blocks moisture, pests, and cold drafts, turning the crawl space into a clean, controlled environment. Before encapsulating, it’s crucial to inspect for any existing issues, as covering up damage can allow problems like rot or mold to worsen unseen.
Deterioration
While waterproofing and encapsulation materials from big box stores say they are built to last, they won’t last forever. Over time, wear and tear reduce their effectiveness, leaving your crawl space vulnerable to moisture. Regular inspections and maintenance ensure that your crawl space remains secure, even as the materials age, protecting your home’s structure and indoor air quality.
Whether you’re considering crawl space encapsulation for the first time or looking to upgrade your current setup, professional guidance is essential. An expert can assess your crawl space, explain the benefits, and provide a clear estimate of costs, helping you make the best choice to keep your home safe and resilient.
Crawl Space Encapsulation Steps
Interior Drainage and Sump Pump
The first step in creating an encapsulated crawl space starts with installing an interior drainage system and a sump pump, especially if you live in a place where flooding is common. Although not all crawl spaces need a sump pump, it might be important if you’re dealing with a leak or if your home has a build that will result in water slowly gathering in the crawl space. In these situations, a sump pump can be a great way to avoid further problems that standing crawl space water can cause.
The drainage system and sump pump work best when paired together. The specially designed EZ Flow™ Crawl Space Drainage System is placed in the crawl space floor to collect leaking water.
This water is then directed to drain into the sump pump system so that it can be properly removed from the crawl space. Additionally, drainage matting can be placed on the crawl space floor to help direct water from other parts of the crawl space to the perimeter EZ Flow™ system.
Vapor Barrier Liner
Next, ensure the crawl space doesn’t have an open dirt floor. If your crawl space has any open dirt space underneath it, which may be the case for some or all of your crawl space, it’s important to have an AFS Foundation & Waterproofing Specialist place a vapor barrier liner. By using only a 20-mil vapor barrier liner, the thickest liner available, you can be certain you’ll keep all water vapor outside your crawl space.
Remember that any dirt crawl space needs a vapor barrier. This is true whether the area appears to have a lot of moisture or seems mostly dry. Even dirt that seems dry will connect much further down to soil with a lot of moisture in it. Dirt retains moisture very far down, and any dirt in crawl spaces will eventually release that moisture. It’s a good idea to install a vapor barrier liner over any dirt areas in your crawl space.
Vent Covers
Installing airtight vent covers can fix this additional moisture problem. A vent cover is very easy to install, overall; all you have to do is fasten the vent cover on the vent and you’ll be protected from extra moisture that may come in from the vent. Vent covers can also protect you against pests that might enter through a vent and water that might come in during rain or floods. Overall, covering your crawl space vents is absolutely a better choice than leaving them open.
Dehumidifier
Lastly, especially if you tend to have a very humid home, it’s important to install a crawl space dehumidifier. Even if you’ve completely sealed off the crawl space from humidity, it’s still possible for the home and the area around it to carry more moisture, as is often the case in areas with humid subtropical climates. In these situations, you may need to consider a crawl space dehumidifier.
Dehumidifiers shouldn’t be your first step. If you have a humid crawl space, you can’t necessarily stick a dehumidifier in the space and call it done. You really need to tackle the base problem of the crawl space, which is probably open vents or a dirt crawl space, before you can install a dehumidifier. However, a dehumidifier can be a genuinely useful part of encapsulating a crawl space, so you also shouldn’t rule out the possibility for a dehumidifier.
Why Store-Bought Crawl Space Solutions Don’t Work
Store-bought crawl space solutions often don’t work well because they use lower-quality materials that aren’t built to withstand a crawl space environment. These spaces deal with a lot of moisture and temperature changes, and cheaper products can’t handle these conditions for very long.
Proper encapsulation also needs careful installation to make sure the space is fully sealed. DIY kits may not include everything needed, and without experience, it’s easy to leave gaps or wrinkles that let in moisture and pests. As a result, store-bought solutions can wear out quickly, leading to ongoing moisture problems, mold, and even damage to your home’s structure.
Common Crawl Space Tips & Mistakes
Tips:
- Even sealed crawl spaces can develop moisture, so a high-capacity, self-draining dehumidifier helps prevent mold and improves air quality throughout your home.
- Encapsulation stabilizes crawl space temperatures, reducing energy use and HVAC strain, which ultimately saves you money on utility bills and maintenance.
- While vented crawl spaces were once recommended, sealing them is now preferred to block humid air, mold, and allergens from entering your home.
Mistakes:
- Failing to install a backup sump pump can lead to flooding if the main pump breaks or loses power.
- Waterproofing alone isn’t enough; full encapsulation with sealed walls and floors is needed to prevent mold and improve indoor air quality.
- DIY encapsulation can backfire without professional-grade materials and proper installation, leading to issues with condensation, pests, and mold growth.
- Not all crawl space insulation is alike—only closed-cell wallboard resists moisture and provides an effective R-value, while fiberglass and spray foam can worsen moisture problems.
Providing Expert Crawl Space Repair in Alabama, Georgia, Kentucky, Florida, and Tennessee
Customers across Alabama, Tennessee, Georgia, Kentucky and Florida trust AFS Foundation & Waterproofing Specialists for reliable crawl space, foundation, basement waterproofing, and concrete repair services. Contact us for a free inspection!
Top Cities We Serve
Crawl Space Encapsulation Resources
Our Locations
130 Interstate Commerce Crt. Bldg. 100 & 200
Alabaster, AL 35007
806 N Holtzclaw Ave.
Chattanooga, TN 37404
2701 Opelika Road
Phenix City, AL 36870
2415 Jordan Road
Huntsville, AL 35811
3028 E Governor John Sevier Highway
Knoxville, TN 37914
13105 Middletown Industrial Blvd.
Louisville, KY 40223
3131 Hamilton Blvd.
Theodore, AL 36582
1519 Heil Quaker Blvd.
LaVergne, TN 37086
89 W. Hood Dr.
Pensacola, FL 32534