Trusted Since 1966

Crawlspace Encapsulation
in Asheville, NC

Improve Indoor Air Quality & Prevent Moisture Issues

Protect your home from moisture, mold, and long-term damage with expert crawlspace encapsulation in Asheville from A-1 Pest Control in Asheville. If you live in Asheville or anywhere in the Western North Carolina region, your home is especially vulnerable to high humidity, wood rot, and crawl space moisture problems. Our encapsulation services seal, insulate, and protect the entire crawl space—improving air quality, increasing energy efficiency, and protecting the structural integrity of your house.

Call today to schedule your free crawl space inspection in Asheville! Hesitant about the cost? We offer financing for all crawl space work to make this vital service affordable.

Why Crawl Space Encapsulation Matters in Asheville

Due to the mountain climate of Asheville, homes often face high humidity and moisture problems that start in the crawl space. That trapped moisture can lead to mold growth, rotting wood, pest problems, and foul odors that rise into your living areas.

By sealing and insulating the crawl space, you protect your house from the ground up—literally. A properly encapsulated crawl space prevents the circulation of damp, unhealthy air and creates a dry, energy-efficient environment beneath your home.

What Is Crawl Space Encapsulation?

Crawl space encapsulation is a complete sealing and insulating process that transforms the area beneath your home into a dry, controlled environment. We use vapor barriers, foam insulation, and dehumidifiers to block moisture, mold, and air exchange from the outside. Every inch of the space—including the floor, crawl space walls, and vents—is sealed to create a protective envelope.

The result? A healthier house, lower energy bills, and peace of mind.

Is Crawl Space Encapsulation Worth the Cost?

Absolutely. For Asheville homeowners, crawl space encapsulation offers lasting benefits that protect your home and improve your quality of life. Here’s a breakdown of what makes it worth the investment:

Moisture Prevention

A properly encapsulated crawl space blocks harmful moisture from seeping in through the ground, vents, and walls. By keeping these structural components dry, you avoid costly repairs and maintain the strength of your home’s foundation. Plus, you discourage destructive pests like termites from ruining your home's foundation.

Improved Indoor Air Quality

Up to 50% of the air you breathe on the first floor comes from your crawl space. Without proper sealing, mold spores, mildew, and musty odors can rise into your living space. Encapsulation creates a clean, dry environment that reduces airborne allergens and contaminants, leading to healthier air throughout your home.

Energy Savings

Encapsulation includes sealing air leaks and insulating crawl space walls and rim joists with materials like spray foam or foam board. This added layer of thermal protection prevents temperature swings beneath your home, reducing the workload on your HVAC system and lowering your utility bills.

Increased Comfort

Say goodbye to cold floors in the winter and hot spots in the summer. Encapsulation helps maintain a stable temperature beneath your home, directly improving comfort levels on the first floor.

Greater Home Value

An encapsulated crawl space reduces the risks of mold, odors, pest infestations, and structural damage. Potential buyers see this as a valuable upgrade—one that shows the home has been cared for and protected.

Compared to short-term fixes from the hardware store, encapsulating your whole crawl space offers lasting protection, better performance, and real ROI.

Our Crawl Space Encapsulation Process

We follow a proven step-by-step process for encapsulation tailored to each Asheville home:

Inspection and Debris Removal

We inspect your entire space, identify problem areas, and clear out debris, damaged materials, and insulation.

Sealing the Space

We seal vents, rim joists, seams, and openings to block outside air, pests, and moisture. Spray foam is used on interior crawl space walls and around pipes or connections.

Installing the Vapor Barrier

We lay a heavy-duty vapor barrier across the crawl space floor and extend it up crawl space walls. This is fully taped and secured to prevent seam gaps.

Insulating with Foam

Closed cell spray foam is applied to rim joists and crawl space walls, reducing temperature fluctuation and further sealing out moisture.

Installing a Dehumidifier

Even with the best vapor barrier, residual humidity from the ground, foundation, and air can remain. Installing a dehumidifier ensures your crawl space stays dry all year.

Our dehumidifiers are energy-efficient, automated, and sized for the square footage of your crawl space.

Sump Pump and Drainage (if needed)

For crawl spaces with water coming in from below, we install a sump pump to move water safely out and away from the house.

Compared to short-term fixes from the hardware store, encapsulating your whole crawl space offers lasting protection, better performance, and real ROI.

Get a FREE Inspection

Common Crawl Space Problems

If you notice any of these issues, it may be time to encapsulate:

Standing water or puddles

Foul odors rising into your first floor

Mold or mildew on beams, insulation, or joists

Cold floors in winter, hot floors in summer

Rodents, insects, or pests in your crawl space

Sagging insulation or damaged vapor barrier

We often discover pipe leaks, missing vents, or insulation gaps that others overlook.

Average Cost of Crawlspace Encapsulation in Asheville

Prices vary based on the size of your crawl space, whether a sump pump is needed, and the extent of mold or water damage. On average:

Basic vapor barrier installs

$3,000–$6,000

Full encapsulation with insulation and dehumidifier

$7,000–$15,000

We provide clear, up-front quotes and offer financing options for qualified homeowners.

Get a FREE Inspection

Why Asheville Homeowners Choose A-1 Pest Control

At A-1 Pest Control, we understand that your home is one of your most valuable investments. Protecting your crawl space is not just another job for us — it’s a mission we take seriously. Here’s why homeowners across Asheville and Western North Carolina trust us for their crawl space encapsulation needs:

Serving Western North Carolina Homes Since 1966

With over five decades of experience serving Asheville and the surrounding region, we bring unmatched local expertise to every project. Our deep knowledge of the unique climate and soil conditions in WNC allows us to tailor our crawl space solutions to meet the specific challenges faced by homeowners in this area.

Trained, Licensed Crawl Space Experts

Our team consists of highly trained and fully licensed professionals who specialize in crawl space encapsulation and moisture control. We stay up-to-date with industry best practices and use the latest techniques to ensure your crawl space is sealed and insulated to the highest standards.

High-Quality Materials and Proven Systems

We never cut corners when it comes to materials. From commercial-grade vapor barriers to premium spray foam insulation and industrial-strength sealants, every product we use is chosen for durability and long-term effectiveness. Our proven crawlspace encapsulation in Asheville delivers reliable moisture control, improved air quality, and energy efficiency.

Free Inspections

Transparency is a cornerstone of our business. We start every job with a thorough, honest inspection of your crawl space, clearly explaining any issues we find and the best options for your home. We don’t believe in pressure or upselling — our goal is to help you make informed decisions that fit your needs and budget.

Frequently Asked Questions

Do I need a dehumidifier if I encapsulate my crawl space?

Yes—even sealed spaces hold some residual humidity. A dehumidifier keeps your air dry and mold-free.

When should you not encapsulate your crawl space?

If you have major drainage or structural issues, those should be addressed first.

Is encapsulation the same as waterproofing?

Encapsulation is part of a larger waterproofing system that includes sealing, insulation, sump pump, and drainage control.

How long does crawl space encapsulation take?

Most jobs take 2–5 days, depending on the size and condition of your crawl space.

How do I maintain my crawl space once it’s encapsulated?

We recommend annual inspections and dehumidifier checks to ensure lasting performance. As part of our crawlspace encapsulation in Asheville, we will provide a thorough inspection and provide follow-up tips.