Crawl Space Encapsulation

Why is my crawl space cold, damp, and musty?

Crawl spaces play a major role in the overall comfort, energy efficiency, and air quality of your home. Unfortunately, many crawl spaces are left uninsulated or improperly sealed, allowing moisture, cold air, and musty odors to rise into your living space. At Sealtite Insulation & Slabjacking, we specialize in transforming damp, inefficient crawl spaces into clean, dry, energy-efficient environments.

Should I insulate my crawl space?

By insulating with high-quality closed cell spray foam, we create an airtight barrier that seals out drafts, keeps floors warmer, and prevents mold-causing moisture from entering your home. To take protection even further, we offer crawl space encapsulation with a durable vapor barrier—completely sealing the ground and walls to block humidity and improve indoor air quality. The result is a cleaner, healthier, and more energy-efficient home from the ground up.

Crawl Spaces

Benefits

Improved Energy Efficiency

Spray foam creates an airtight seal that prevents outside air from leaking in and indoor air from escaping. This reduces the workload on your HVAC system and can significantly lower heating and cooling costs year-round.

Moisture & Mold Prevention

Insulating and encapsulating your crawl space helps stop ground moisture and humidity from seeping into your home. By keeping the area dry, you greatly reduce the risk of mold, mildew, and wood rot.

Improved Comfort

Spray foam insulation helps maintain consistent temperatures and keeps floors warm and comfortable all season long.

Improved Air Quality

A sealed and insulated crawl space keeps out musty odors, allergens, and contaminants that can travel upward into your living space.

Long-Term Protection

Spray foam doesn’t absorb moisture, sag, or break down over time. When combined with a professional vapor barrier, your crawl space stays protected for the long haul.

Added Home Value

A properly sealed crawl space adds value to your home by addressing one of the most overlooked areas in home maintenance.

Frequently Asked Questions

Do I still need a dehumidifier after encapsulation?

In some cases, yes. Even though encapsulation drastically reduces moisture, adding a dehumidifier can help maintain consistent humidity levels in more humid climates or older homes.

How do I know if my crawl space needs insulation or encapsulation?

Signs include musty odors, cold floors, high humidity, visible moisture or mold, and increased energy bills. If you notice any of these issues, it’s time for a professional inspection from Sealtite.

How long does crawl space encapsulation last?

When professionally installed and properly maintained, crawl space encapsulation should last for decades. Spray foam insulation and vapor barriers are both durable, long-term solutions that rarely need to be replaced. At Sealtite, we only install the best product, most of which have a lifetime warranty.

What’s the difference between spray foam and fiberglass insulation in crawl spaces?

Spray foam insulation provides a complete air and moisture seal, while fiberglass can trap humidity and lose effectiveness over time. Spray foam lasts longer, resists mold, and performs better in damp environments like crawl spaces.

What is crawl space encapsulation?

Crawl space encapsulation is the process of sealing your crawl space with a heavy-duty vapor barrier that covers the ground and walls. When paired with spray foam insulation, it creates a clean, dry, and controlled environment that protects your home from moisture, pests, and energy loss.

How much does crawl space insulation and encapsulation cost?

The cost depends on the size of your crawl space, its condition, and the materials used. Sealtite offers customized estimates to ensure you get the right solution for your home and budget.

How long does it take to insulate and encapsulate a crawl space?

Most crawl spaces can be insulated and encapsulated in 1 day. However, the amount of time can vary depending on the size and scope of the job. Our experienced sales professionals can give you the expected amount of time it will take when they complete your free estimate.

Why Choose Us?
The Sealtite Difference

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Our team is committed to raising the standard of efficiency and workmanship on every project we do.

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We use premium products manufactured in the USA and offer a variety of products because every project and budget is unique.
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We have a LIFETIME warranty on our encapsulation products!

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Over 20 years of experience and customer satisfaction.
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Our high employee retention gives you Installation crews with decades of experience.
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Integrity. Don’t take our word for it, check out our customer reviews.

Sealtite Insulation

Customer Reviews

Ready to learn more about what happening with your crawl space?

We offer free, no-obligation estimates.