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Our Proven 7-Step Encapsulation Process

We've perfected this process through hundreds of jobs across Cabarrus, Mecklenburg, Rowan, and Iredell Counties.

Remove old materials

The first critical step involves completely clearing your crawl space of all damaged or contaminated materials that could compromise the encapsulation system. Our crew removes old fiberglass insulation that has fallen down or absorbed moisture, clears away any debris like rocks, trash, or organic matter, and eliminates anything that attracts pests like rodents or insects. This thorough cleaning also gives us the opportunity to conduct a complete "wellness check" of your crawl space, identifying any plumbing leaks, electrical issues, or structural problems that need attention before we begin the encapsulation process. We'll also address any standing water issues and ensure the surface is as smooth as possible for optimal vapor barrier installation.

Seal existing vents

Next, we permanently block all existing foundation vents to stop outside air from entering your crawl space. Using rigid foam board cut to fit each vent opening, we create an airtight seal that's much more effective than temporary vent covers. Every gap around the foam board gets sealed with expanding foam to eliminate even the smallest air leaks. This step is crucial because North Carolina's humid outside air is exactly what we're trying to keep out of your crawl space. Many contractors skip this step or do it poorly, but we know that unsealed vents are the number one cause of encapsulation failure in our climate.

Install 20-mil vapor barrier

We cover your entire crawl space floor and foundation walls with heavy-duty 20-mil reinforced vapor barrier - not the thin plastic sheeting that many contractors use. This thick, puncture-resistant material gets rolled out across the floor and run up the walls at least 6 inches above grade level per North Carolina building code requirements. Every seam gets overlapped by a minimum of 6 inches and sealed with specialized waterproof tape to create one continuous moisture barrier. This isn't just laying down plastic - it's creating a complete moisture control system that will last for decades. The vapor barrier also helps create a brighter, cleaner-looking crawl space that's much easier to inspect and maintain.

Wrap support piers

All concrete block piers, posts, and columns get individually wrapped with vapor barrier material to prevent moisture from wicking up through the masonry and into your home's structure. We use double-sided construction tape and termination bars to secure the material around each pier, creating relief cuts at corners so the barrier lays flat against all four sides. This step requires patience and attention to detail because improperly sealed piers can become major moisture entry points. Many DIY attempts fail at this step because homeowners don't realize how much moisture concrete blocks can absorb and transfer into the crawl space environment.

Add wall insulation

We install rigid foam board insulation on your foundation walls to create a thermal barrier that helps maintain consistent temperatures in your crawl space and reduces energy loss from your home. Unlike fiberglass insulation that absorbs moisture and supports mold growth, foam board won't sag, deteriorate, or lose its insulating properties in humid conditions. The insulation gets installed after the vapor barrier to ensure both moisture and thermal protection. This step can significantly reduce your heating and cooling costs by preventing temperature fluctuations that force your HVAC system to work harder. We also seal around rim joists where the foundation meets your home's frame structure.

Install sealed access door

Your old wooden crawl space door gets replaced with a heavy-duty, airtight metal access panel that maintains the sealed environment we've created. These professional-grade doors feature weatherstripping, secure latching mechanisms, and insulation to prevent air leaks that could compromise your entire encapsulation system. Many crawl space moisture problems are caused by poorly fitting access doors that let humid outside air enter the space. Our sealed doors are designed to last for decades and maintain consistent moisture control. We also ensure the new door meets local building code requirements and provides easy access for future inspections or maintenance.

Right-size dehumidifier

The final step involves calculating the exact dehumidifier capacity needed for your specific crawl space volume and installing a commercial-grade unit with automatic drainage. We don't guess at sizing - we use scientific calculations based on your crawl space square footage, ceiling height, and North Carolina's climate conditions to determine the proper capacity. The dehumidifier gets elevated on concrete blocks above potential flood levels and connected to a condensate pump that automatically drains moisture outside your home. We also install a digital hygrometer so you can monitor humidity levels from your living space without having to enter the crawl space. This system will automatically maintain humidity levels between 30-50% year-round.

Transparent Pricing for Cabarrus County Homeowners

Most crawl space encapsulation projects in the Concord area cost between $4,800 and $12,500. The final price depends on several factors

Size matters most

We charge by square footage, typically $3.50-$6.50 per square foot depending on complexity.

Height affects labor

Crawl spaces under 3 feet cost more due to difficult working conditions

Existing problems add cost

Water damage, wood rot, or drainage issues require extra materials and time

What's always included:

  • Free detailed inspection and estimate
  • 20-mil reinforced vapor barrier (not cheap 6-mil plastic)
  • All sealing materials and professional installation
  • Right-sized dehumidifier with warranty
  • Clean-up and disposal of old materials

Why Concord Homes Need Crawl Space Encapsulation

Concord's mild, moist climate creates perfect conditions for crawl space problems. The clay soil common throughout Cabarrus County expands when it rains and contracts during dry spells, creating cracks that let moisture seep in. Add North Carolina's high humidity levels, and you've got a recipe for musty odors, mold growth, and energy waste.

Most homes in the Concord area were built with vented crawl spaces following older building practices. But today's building science shows that sealing and conditioning your crawl space works better in our humid climate. You'll get lower energy bills, better indoor air quality, and protection from moisture damage.

Crawlspace Repair Experts

Our specialists use the latest techniques and materials to deliver long-lasting results, never shortcuts. We fix the source, not just the surface.

Clear Communication, Always

We walk you through the process, answer every question, and keep you informed. No confusion. No pressure. Just respect and honesty.

Neighbors Helping Neighbors

Proudly serving families across North Carolina, we’re more than a team — we’re part of your community. Your safety is our responsibility.

Where Clean Air Meets Peace of Mind

For over 15 years, Carolina Duct & Crawl has been helping homeowners in Greensboro, Raleigh, and surrounding areas breathe easier. Specializing in air duct cleaning, mold remediation, and Crawlspace encapsulation, we focus on what many overlook — the air you live in and the spaces beneath your home.

Our mission is simple: deliver clean, healthy, energy-efficient homes with honest service and lasting results. Whether you’re a new homeowner looking for a fresh start or tackling ongoing air quality issues, we offer tailored solutions backed by experience, certified methods, and real results.

We don’t cut corners, oversell, or rush through jobs. Our technicians inspect thoroughly, explain clearly, and treat your home with the same care we’d give our own. With local knowledge and industry-grade equipment, we provide solutions built for Charlotte’s unique climate challenges — from high humidity to hidden mold and Crawlspace moisture.

Trust is earned, and we’ve built ours one home at a time. Clean air, dry spaces, and healthier living that’s our promise.

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FREE ESTIMATE

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Up to $500 OFF Full Crawlspace Restoration

Seal moisture, stop mold, and secure your crawlspace with expert encapsulation. Limited time offer — don’t wait!

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crawlspace Repair That Protects What Matters

We don’t just seal crawlspaces — we safeguard your home, your health, and your peace of mind.

Seals Out Moisture, Protects Your Home

A damp, musty crawlspace is more than uncomfortable — it’s a warning sign. Left untreated, it can lead to mold, fungal growth, high humidity, and standing water under your home. Our crawlspace encapsulation and waterproofing solutions stop moisture at the source using vapor barriers, proper insulation, and smart drainage systems. This process defends your foundation, prevents warped floors, and keeps odors away.

Designed for Families, Delivered with Care

Every home is different — and so is every crawlspace. That’s why our crawlspace specialists tailor every repair with your family’s safety and comfort in mind. Using advanced technology, we install dehumidifiers, seal off leaks, and correct long-term issues. Cleanliness, safety, and respect for your space are non-negotiables for our local crawlspace repair experts.

Real Experts, Real Results

We’re more than a professional crawlspace repair company — we’re your neighbors. With locations in Charlotte, Raleigh, Greensboro, Durham, Winton Salem, and Wilmington, we deliver fast, friendly service that never compromises on quality. Our experienced team walks you through every step — answering questions and ensuring you’re informed, supported, and confident.

Stops Small Problems from Becoming Big Repairs

Ignoring a crawlspace issue can quickly lead to major damage and costly repairs. Whether it's excess moisture, insulation issues, or a failed crawlspace sump pump, we help resolve it before it spreads. Preventative crawlspace repair protects your investment and avoids headaches down the line. Our job isn’t just to fix problems — it’s to prevent them.

. How Much Does crawlspace Encapsulation Cost?

The repair cost depends on multiple factors like the size of your space, condition, and what services you need — such as drainage, insulation, or vapor barriers. Most homeowners can expect a range between $5,000–$10,000. We’ll guide you with an accurate estimate, provide a free crawlspace inspection, and offer a no-obligation estimate with flexible options. At crawlspace Brothers, we believe in fair pricing, affordable solutions, and never cutting corners.

Customer Service That Feels Like Family

From the first call to the final walkthrough, we treat your home like our own. You’ll get prompt scheduling, helpful communication, and a 5-star guarantee to back our work. We deliver exceptional results with a family-focused approach that puts your comfort and satisfaction first — because to us, you’re not just a project, you’re part of the family.

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THOUSAND TRUST FAIRSTONE

Don’t take our word for it, see what our client say

Our customers consistently praise our fast response, friendly team, and lasting results. From cleaner air to more comfortable homes, their stories speak for themselves.

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chrissie caster

Very pleased with the service from this company, the technician and inhaler were polite from the start and very educated and efficient. They completed the job in a day and left no mess behind. I would recommend them to family and friends

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cheyanne sizemore

Bryan came and installed an encapsulation in our crawlspace. We have also noticed a reduction on our energy bill since then. The company was very price competitive and did everything they said they were going to do including showing up on time. We are very happy with his service and that of the company he represents and couldn't be more thrilled with the outcome.

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Kenneth Ludington

Toy Talley did duct cleaning and mold remediation for my home today 5/19/25. I received first rate work, completely professional and timely. All questions answered by Mr. Talley, a very professional man but also very friendly and engaging! I recommend this company and Toy to any an all who need to have this service!

Our Service Area

We Proudly Service the Following Areas

Charlotte, NC
Raleigh, NC
Greensboro, NC
Wilmington, NC
Fayetteville, NC
Cary, NC
Apex, NC
Mooresville, NC
Cornelius, NC