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.

Outstanding communication and workmanship. We need to have out concrete around our pool corrected after some ground settling. The gentleman who did the promptly communicated with us and did a fantastic job.Highly recommend.
Jurgen was excellent! First, my hat's off to anyone who would crawl under a house. Second, he provided a full review of the space with pictures that were clear and told us where in the footprint the pictures were taken. Following the inspection, we asked a ton of questions which he patiently and with great professionalism explained to us. 5 stars and 2 thumbs up!
Dan was prompt and very helpful. Thank you for your service!
I had an issue with the floor being not level in my bedroom, plus several doors not closing properly. CNT Foundations had done previous work on my home, so I contacted them. Dan Hinson arrived to thoroughly assess the problem and stated that the floor would be leveled. The technician provided, Jeremy Starr, did an excellent job. He was professional, providing updates as he corrected all the issues. I highly recommend CNT Foundations and the team of Dan Hinson and Jeremy Starr.
Anderson called me right back with honest knowledgeable advice. Very helpful and highly recommended!
Set an appointment online which was incredibly easy and got a notification immediately that it was received and someone would be in touch. They got in touch the next day to confirm and let me know that we were on schedule.TC messaged me the day before confirming that we were still good. He arrived today and checked into my concerns and immediately pinpointed what our actual problem was which was not the foundation. He was thorough in his explanation and so incredibly honest about why we did not have an issue with our foundation and gave me pointers on what we could do instead. We need more people in the world like him. Thank you so very much!!
Technician came out and leveled the foundation and did a fantastic job. He was always available to answer any questions and give me any information needed.
All right this is a message to share with you about the crew and the lead person that came to install our new floor and I can’t say enough good about it. The crew was wonderful. Justin is the lead person and his workers are ever bit as good and I certainly enjoyed meeting him and I will welcome him to come anytime to help us out again and I give them five stars ++ and I think they did beyond the call of duty. They did things that I asked them that probably wasn’t in the contract but anyway, I certainly appreciate the help that they have given us.Thank you very much and my name is Jan Fishback
Dan looked at my concerns outside and he determined that is nothing to do with the foundation. He explained the nature of the problem and the available options for repair. The internal issue was consistent with the external assessment. The fireplace just needed a bit of repair. Dan was personable and provided thoughtful explanations. My husband and I appreciated his demeanor as it immediately demonstrated a commitment to excellent customer service.
I met Dan H. this afternoon, to talk about my pooling water issue in the inside corner of my foundation, in my crawlspace. In speaking with Dan, at some length, I found Dan to be friendly and very personable. Additionally, Dan expressed that he was a "straight shooter", which I definitely found him to be, and was refreshing. We both ran short on time, so he will be back another day soon, to physically inspect my crawlspace for water damage and a workable solution.
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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.

Secure Your Crawl Space Encapsulation Package Today

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