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Is Crawl Space Encapsulation Worth It? (8 Benefits)

Is Crawl Space Encapsulation Worth It? (8 Benefits)

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Did you know that dirt, pests, and excessive moisture in your crawl space may damage your home sooner or later?

But did you know that there’s a guaranteed solution for it? Yes, it’s crawl space encapsulation.

In this article, we’ll explore the benefits, overall cost, and everything you need to know about this project. We’ll also help you ponder on the question every homeowner asks:

Is crawl space encapsulation worth it?

Read on and find out if it’s the right choice for you.

What Is Crawl Space Encapsulation?

Crawl space encapsulation is a home improvement process of sealing and conditioning a crawl space to control moisture and enhance indoor air quality.

The process involves installing a vapor barrier on the floor and walls of the crawl space, insulating the whole room, and adding a ventilation system.

Crawl space encapsulation prevents moisture, mold, and other environmental hazards from entering a home—creating a dry, energy-efficient, and healthy environment for you and your family.

Top 8 Benefits of Having an Encapsulated Crawl Space

An encapsulated crawl space is a smart investment for homeowners. It provides solutions to many of our housekeeping headaches.

Here, we set down eight significant advantages of crawl space encapsulation that you need to know.

1 – Controlled Moisture and Humidity

This project enables you to control moisture and humidity levels in your home. Sealing your crawl space from the outside environment keeps moisture and humidity from entering the area.

2 – Less Energy Consumption (And Bills)

One of the major benefits of an encapsulated crawl space is that it helps reduce energy consumption and lower electric bills.

By controlling moisture and humidity levels, an encapsulated crawl space makes it easier to heat and cool your home. This helps reduce the energy needed to maintain a comfortable temperature.

3 – Healthier Indoor Air Quality

Encapsulation eliminates a significant amount of dust, dirt, and other particles in your crawl space. This can improve the indoor air quality of your entire home.

The vapor barrier and insulation work together to keep the space sealed. This process reduces the number of particles that can enter and circulate in the air or penetrate your HVAC system.

More importantly, it also prevents mold and fungal growth that act as allergens in the air; thus, causing various health problems.

4 – Enhanced Structural Stability

Encapsulating your crawl space reduces the amount of moisture and humidity that enters the space. This method protects the structural components of the space from damage.

This prevents wood rot and insect infestations that can weaken your home’s structural support, leading to potential safety hazards.

Moreover, moisture and humidity can cause metal components, such as HVAC ducts and metal support beams, to rust and corrode. This can further weaken your home’s structure.

5 – No More Icky Molds

It’s a known fact that molds and fungi grow in humid and damp places. You may also know that crawl spaces are highly prone to moisture and humidity—creating the perfect environment for molds and fungi.

Crawl space encapsulation is a guaranteed solution for this home problem. Encapsulation keeps your crawl space dry by significantly reducing moisture and humidity, preventing mold and fungi growth.

6 – Instant Pest Control

Encapsulated crawl spaces act as a pest control measure by creating a barrier between your crawl space and the outside environment. This prevents pests and insects from entering the space and potentially infesting your home.

7 – Warm Floors All Year Round

A proper insulation system in an encapsulated crawl space helps reduce heat loss. Thus, maintaining a consistent temperature for your floors.

Additionally, it creates an ideal environment for your HVAC systems. This is essential in optimizing the machines’ thermal performance.

8 – Healthy Home, Healthy Family

Encapsulating your crawl space creates a safer, healthier, and more comfortable home environment for you and your family.

Health-wise, this project can help reduce the risk of respiratory problems, allergies, and other health issues. This is because encapsulation improves your indoor air quality.

Furthermore, it also improves the longevity and stability of your home, saving you from future renovations, stress, and unexpected expenses. That’s one concern off the list!

How Much Will Crawl Space Encapsulation Cost You?

On average, expect to spend between $3,000 to $15,000 for a crawl space encapsulation project. However, some projects can cost significantly more or less depending on specific circumstances.

As a guide, here are some factors that can affect the overall cost of a crawl space encapsulation project.

Size of the Space

The crawl space size can define the cost of an encapsulation project. Remember, the larger the space, the higher number of materials, time, and labor required to complete the project.

The Complexity of the Project

The overall cost also depends on the pre-existing condition of the crawl space and the structural elements that need to be added.

Additionally, the systems you may want to integrate, such as HVAC, plumbing, and insulation, will add to your overall expenses.

Materials Used

The cost of equipment, such as dehumidifiers, sealing materials, insulation, ventilation systems, and sump pumps, will impact the project’s cost too.

Contractors Available to You

Likewise, the demand and service rates of contractors will define the project’s cost. When demand for this type of contractor is high where you reside, expect higher rates for their services.


Seasonal inspection and maintenance—usually done semi-annually, will help you maintain a healthy, clean, and dry crawl space. Depending on your project contract with your contractor, this service may or may not cost you a fee.


How Long Does Crawl Space Encapsulation Last?

A well-designed and installed encapsulation system should last for at least 10 to 20 years—many systems last even longer. High-quality materials, skilled contractors, and regular maintenance can extend the lifespan of this system.

What’s the Downside of Crawl Space Encapsulation?

Essentially, the most significant disadvantage of crawl space encapsulations is the overall expense you’ll need to prepare. This includes the initial cost of the renovation and the regular maintenance of the space and equipment.

Does Crawl Space Encapsulation Add Value to a Home?

Yes! A well-maintained, encapsulated crawl space can definitely increase the value of your home. Enhancing the structural stability and the overall condition of the house elevates the marketability and value of your home.

Does Crawl Space Encapsulation Stop Rodents?

Crawl space encapsulation is a guaranteed way to terminate the rodent community under your floors. Encapsulation seals off all entry points, preventing these unwelcome visitors from settling in.

Does Crawl Space Encapsulation Qualify for Tax Credit?

Crawl space encapsulation may qualify for a tax credit if it’s part of an energy-saving home improvement project. However, this still depends on the country you’re in.

It’s best to consult with a local tax professional or the Internal Revenue Service (IRS) to know the latest information on tax credits for energy-efficient home improvements.

Final Thoughts

All things considered, crawl space encapsulation is a valuable investment to consider for homeowners who want to make their home (and family) protected and comfortable for many years to come.

Despite the overwhelming price this project may cost, many consider this upgrade worth it, considering the value it adds to your home and its long-term benefits to homeowners.

After all, safety and health will always weigh more than any price.

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