The Benefits of Crawl Space Encapsulation: Why It’s a Wise Investment


Crawl space encapsulation involves sealing a crawl space from outside elements using a vapor barrier, insulation, and sometimes a dehumidifier. This process has gained popularity due to its numerous benefits, such as improved energy efficiency and indoor air quality. For a company like Schmitt Waterproofing, offering crawl space encapsulation is a service and a wise investment for homeowners looking to protect their homes and improve living conditions. Here, we will explore the advantages of crawl space encapsulation and why it is a prudent investment for homeowners.

Understanding Crawl Space Encapsulation

A crawl space is an area beneath a house, typically between the ground and the first floor, that allows access to plumbing, electrical wiring, and HVAC systems. Traditional crawl spaces are often vented to the outside, leading to moisture buildup, mold growth, and pest infestations.

Crawl space encapsulation involves sealing vents and openings to prevent outside air, moisture, and pests from entering. A thick, durable plastic vapor barrier is installed over the ground and walls to block moisture from the soil. In contrast, insulation on the walls helps maintain a consistent temperature within the crawl space. Sometimes, a dehumidifier is installed to control humidity levels and prevent condensation.

Improved Energy Efficiency

One of the most significant benefits of crawl space encapsulation is improved energy efficiency. Sealing off the crawl space prevents cold air from entering during the winter and hot, humid air during the summer. This helps maintain a consistent indoor temperature, reduces the workload on your HVAC system, and leads to lower energy bills. Homeowners can expect a reduction in their energy bills, often by 15-20%, after encapsulating their crawl space.

Enhanced Indoor Air Quality

The air in your crawl space can directly impact the air quality inside your home. Traditional vented crawl spaces allow moisture, mold spores, and allergens to enter the living space, which can be detrimental to health, especially for those with respiratory issues or allergies. Encapsulation prevents moisture from entering the crawl space, reducing the risk of mold and mildew growth. Sealing off the crawl space prevents outdoor allergens and pollutants from entering your home, leading to cleaner indoor air.

Increased Home Value

Crawl space encapsulation can significantly increase the value of your home. Potential buyers are often willing to pay more for a home that has been well-maintained and protected against common issues such as mold, pests, and structural damage. Encapsulation can be a strong selling point, making your home more attractive to potential buyers. Homes with encapsulated crawl spaces often command higher resale values due to the added protection and energy efficiency benefits.

Protection Against Structural Damage

Moisture is a primary culprit behind many structural issues in homes. Excess moisture in the crawl space can lead to wood rot, foundation cracks, and other structural problems that can be costly to repair. Keeping the crawl space dry prevents wood rot in the floor joists and other structural components. Encapsulation helps protect your foundation from moisture-related issues, extending its lifespan and reducing the risk of costly repairs.

Pest Prevention

A damp, dark crawl space is ideal for pests such as termites, rodents, and insects. Crawl space encapsulation helps keep these unwanted visitors at bay by creating a barrier that prevents pests from entering and nesting in your home. With fewer pests, you’ll spend less on pest control services and repairs caused by pest damage.

Improved Comfort

A well-insulated and encapsulated crawl space can make your home more comfortable. You can enjoy a more comfortable living environment year-round by preventing drafts and maintaining a consistent indoor temperature. Encapsulation helps eliminate drafts and cold floors, making your home more comfortable, especially during extreme weather conditions.

How Crawl Space Encapsulation Works

The process of encapsulating a crawl space includes several key steps:

  • Inspection and Cleaning: The crawl space must be cleaned before encapsulation. Any signs of mold, pests, or rot must be treated.
  • Barrier Installation: A high-quality, durable vapor barrier is then installed to cover the crawl space’s ground and walls.
  •   Sealing Gaps and Cracks: To prevent air leaks, all vents, gaps, and cracks in the crawl space are sealed.
  •  Installing a Dehumidifier: In some cases, a dehumidifier is installed to help control the moisture level within the encapsulated crawl space.

Frequently Asked Questions (FAQs)

Q1: How long does crawl space encapsulation last?

A: With proper installation and materials, an encapsulated crawl space can last many years, often as long as the house stands.

Q2: Is crawl space encapsulation expensive?

A: The initial cost can be significant, but the long-term savings in energy bills and avoided repairs can quickly offset these costs.

Q3: Can I encapsulate the crawl space myself?

A: While DIY kits are available, professional installation is recommended to ensure the encapsulation is performed correctly and effectively.

The Encapsulation Process with Schmitt Waterproofing

At Schmitt Waterproofing, we follow a comprehensive and meticulous approach to crawl space encapsulation to ensure the best results for our clients.

The first step is to conduct a thorough inspection of your crawl space. Our experts assess the space’s condition, identify existing issues such as mold or water damage, and determine the best course of action. Before encapsulation, we clean the crawl space to remove debris, mold, or pests, ensuring that the encapsulation materials adhere properly and provide a clean, dry environment.

Next, we seal all vents, gaps, and openings to prevent outside air and moisture entering the crawl space. A high-quality vapor barrier is then installed over the ground and up the walls of the crawl space. This barrier is typically made of a thick, durable plastic material that prevents moisture from the soil from entering the space. We also install insulation on the crawl space walls to help maintain a consistent temperature. This insulation is often made of foam board or spray foam, providing excellent thermal resistance. In some cases, a dehumidifier is installed to control humidity levels within the crawl space, which is particularly important in areas with high humidity or if the crawl space has a history of moisture issues.

Once the encapsulation process is complete, we conduct a final inspection to ensure everything is sealed correctly and functioning as intended. This step ensures that our clients receive the highest quality of service and home protection.

Why Choose Schmitt Waterproofing?

Schmitt Waterproofing is dedicated to providing top-notch waterproofing and encapsulation services to homeowners. Our commitment to quality, customer satisfaction, and expertise sets us apart. Our team of professionals has years of experience in the waterproofing industry, with the knowledge and skills to tackle any crawl space issue and provide effective solutions that last. We use only the highest quality materials for our encapsulation projects, ensuring our clients receive durable, long-lasting home protection.

Customer satisfaction is our top priority. We work closely with our clients to understand their needs and provide personalized solutions that meet their requirements. In addition to crawl space encapsulation, we offer a wide range of waterproofing services, including basement waterproofing, foundation repair, and mold remediation. This allows us to provide comprehensive protection for your home.


Crawl space encapsulation is a wise investment for any homeowner. Its numerous benefits, from improved energy efficiency and enhanced indoor air quality to increased home value and protection against structural damage, make it a valuable addition to your home maintenance plan. At Schmitt Waterproofing, we are committed to providing the highest-quality encapsulation services to help you protect your home and enjoy a more comfortable living environment. Contact us today to learn more about our services and how we can help you achieve a healthier, more efficient home.

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