Full Crawl Space Encapsulation Systems $5,494*

Lifetime Transferable Warranty

All in - no surprise quotes

Up to half the air you breathe comes from your crawl space. Protect your family and your home by encapsulating your crawl space.
Brought to you by the experts at CNT Foundations

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Encrypted. $500 Deposit. Refundable.

1,300+ 5-Star Reviews
A+ BBB Accredited
25+ Years of Experience
10,000+ Completed Projects
0 Hidden Fees

The Happy Crawl Space Encapsulation Package

What's Included:

We install a thick, puncture-resistant polyethylene vapor barrier across the entire crawl space floor and foundation walls. This creates an impenetrable shield against ground moisture.

Open vents invite humid outside air into your home. We seal every foundation vent and air leak with a rigid foam board, stopping condensation before it starts.

All seams, overlaps, and edges are tightly sealed using specialized heavy-duty waterproof tape to create an airtight barrier.

South Carolina humidity requires active management. We install high-capacity crawl space dehumidifiers to maintain optimal moisture levels year-round.

Custom vent covers provide a permanent seal against the elements. We secure every opening to ensure your crawl space remains a controlled environment.

Every project begins with a thorough inspection and the removal of debris. We clear and prepare the space for a flawless encapsulation.

Our lifetime warranty is unrivaled. If anything fails, we fix it. No questions, no hassles.

Technician installing crawl space encapsulation material
Dehumidifier

Questions Worth Asking:

We removed the highest costs in the industry: door-to-door sales commissions, multi-step lead generation, and pricing-for-the-room negotiation. The materials and crew are the same — actually better, since we standardize on premium WallSeal™ liner. We make our business work on volume and operational simplicity, not on getting one customer to overpay.

South Carolina law requires every encapsulated crawl space to include a dehumidifier. Quotes from competitors that don’t include one aren’t code-compliant — and they’ll typically add it back later as a $1,500–$2,500 surprise. We don’t play that game. Every Happy Crawl Space package is fully code-compliant from the start and includes everything you need.

That’s what the confirmation at installation is for. If we find mold, structural sag, water intrusion source repairs, or anything outside the standard scope, we tell you in writing before any work starts. You can walk away with a full $500 refund. About 95% of homes fit the standard scope as-is.

Yes — fully refundable up to 7 days before your install date, no questions asked. Inside 7 days, it’s refundable for any reason we discover at the time of installation (e.g., scope change).

One to two days for most homes. We’ll give you a specific timeline when we call to schedule the work. You don’t need to be home during the install — we work in the crawl space, not in your house. Crew typically arrives between 8–9 AM.

Yes — we offer flexible monthly payment options for qualified buyers. Financing details will be presented after you reserve, at your request.

We serve South Carolina, and parts of North Carolina, Georgia, and Florida. Enter your install address during reservation — if we don’t serve your area, we won’t charge the deposit and we’ll happily recommend someone who does.

Happy Crawl Space is a service of CNT Foundations — a family-owned foundation and crawl space specialist with 25+ years of experience, 10,000+ projects completed, A+ BBB rating, and a 4.5★ / 481+ Google rating.

We had an excellent experience with CNT Foundations from start to finish. Jurgen was fantastic throughout the entire process. He took the time to answer our questions, explain the work that was being recommended, and stayed in communication with us from the initial evaluation all the way through completion of the project.Justin and the installation crew were equally impressive. They were professional, knowledgeable, respectful of our home, and clearly took pride in doing the job correctly. We had additional support installed beneath our home, including new concrete footings and structural reinforcement, and the difference was noticeable immediately. The floors feel significantly more solid and stable than they did before the work was completed.I also really appreciated that Jurgen followed up afterward to make sure we were satisfied with everything. That level of communication and customer service is becoming increasingly rare, and it made a major home repair project much less stressful.We are extremely pleased with the finished work and would absolutely recommend CNT Foundations. A big thank you to Jurgen, Justin, and the entire crew for their hard work and professionalism. Five stars without hesitation!
When we were purchasing our home, the inspector advised that our home, which was built in 1986, had sunk 3 inches in 40 years. The home needed piers in the front and back. We contacted CNT and another company for a quote. CNT came out and explained everything, provided us with a fair price on the quote and would they would give us a lifetime guarantee. We scheduled the work, permits were pulled and the crew came out and did the job. They only took one day, the crew was very professional and neat with their work. Very little disturbance to my yard. I watched the work, as I was curious about the process. When they dug down to place the bracket in the front of my house, it was noted that this process had been tried before by another company. All that company had done, was placed a plate on the front of the foundation. There was nothing to hold the house in place. The previous owner, who did not have that work done, but passed me all of the documents on the history of all the work on our home. There was no lifetime guarantee for that work, which was done approximately 10 years ago. I did some homework and found out that this can be a common occurrence and you need to do your due diligence like we did. Watching CNT do the work, and my husband being educated on the process, we were pleased with the job being performed and sure we will not have to deal with this issue again. There were no surprises during this process, resulting in unexpected additional costs. Our home fared well through the process, and our guarantee is transferable, in the event we ever sell this home. We are very pleased with the work performed with CNT.
Travis called me back promptly and gave me a quote quickly and answered all my questions professionally. Great customer service!
Absolutely recommend! Jurgen came out quickly and was very knowledgeable and most importantly didn’t over sell the issues to run the price up, which from what I gather can be common in the industry. Within about a week they were on site. The site foreman Josh went over everything with me and tweaked things a little to get the best results. Him and his crew got after it and we’re done in 2 days. I had some substantial stair step cracking in brick as well as brick pulling away from windows. They were able to close them up substantially. Lifetime transferable warranty. Super friendly staff and good communication skills. Couldn’t ask for a better job by a top notch company that gets after it for a fair price. Thanks Jurgen, Josh and CNT!
TC came to give me a second opinion on the floor beam under my house due to another company telling me it was bad and would cost me $24000 to replace. Thank you TC for your honesty 🙏
I HIGHLY RECOMMEND! TRAVIS CASEY did an EXCELLENT JOB. He listened and answered ALL questions and very HONEST. I WILL BE RECOMMENDING THIS COMPANY TO OTHERS & IF ANY FUTURE WORK NEEDED BE USING THEM.
After getting opinions and estimates from five other crawlspace companies, CNT was the obvious choice. TC was able to properly assess the structural defects and Justin had the experience to get the job done while leading a skilled crew. I appreciated Justin's confidence and enthusiasm in his efforts to stabilize my house. The house now feels great and I realize CNT's work was one of the best investments I could make in this property.
Great experience with CNT Foundations. Dave was very helpful during the initial estimate and also for any follow up service we needed. Would recommend them to anyone.
Professional from beginning to end. Was kept aware of everything that was being done. Communication was outstanding . Thank all of your employees for me.
Justin and his team did a great job lifting and stabilizing my home, which had been built with a woefully inadequate foundation (beams 14' on center). So they had to put in 3 more beams plus the vertical piers under them. All work was done on time, within the quoted amount and the premises were left entirely clean. Very happy!
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BEFORE AND AFTER RESULTS

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Why choose us

Why homeowners Choose a Happy Crawl Space from CNT

Crawl Space Repair & Encapsulation Experts

We specialize in permanent foundation and moisture solutions. Our technicians understand the science of crawl space environments and execute every installation with precision.

Solutions Designed for Humid Southern Climates

Generic fixes fail in South Carolina. We engineer our encapsulation systems specifically to combat the extreme humidity and heavy rainfall of the Southeast.

Lifetime Warranty Protection

We stand behind our work. Our encapsulation systems come with robust warranty protection, giving you long-term peace of mind.

Financing Options Available

Protecting your home should not drain your savings. We offer flexible financing options to make professional encapsulation accessible for every homeowner.

Get Crawl Space Encapsulation for South Carolina Homes

Stop letting humidity dictate the health of your home. A sealed crawl space prevents structural decay, lowers your utility bills, and creates a cleaner living environment. Secure your investment today with our proven encapsulation system.

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  • Fixed package pricing
  • $500 installation deposit
  • Scheduling handled by CNT
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