Crawlspace Encapsulation
Protect Your Home From Moisture, Mold, and Poor Indoor Air Quality
Your crawlspace plays a much larger role in your home’s health than most homeowners realize. At Radon Mitigation Corporation, we provide professional crawlspace encapsulation services designed to control moisture, improve indoor air quality, enhance energy efficiency, and support effective radon reduction.
As a specialized environmental services company and part of the Rely Home Solutions family, we focus on long-term solutions—not temporary fixes. Our crawlspace encapsulation systems are custom-designed for each home, using proven materials and industry best practices to create a sealed, controlled environment beneath your living space.
If your home has musty odors, high humidity, uneven temperatures, or elevated radon levels, crawlspace encapsulation may be the solution you need.
Why Crawlspaces Matter
Many homes in Illinois and surrounding areas are built with crawlspaces that are vented, exposed, or poorly sealed. These spaces allow moisture vapor, soil gases, and outdoor air to enter freely. Over time, this can lead to:
- Mold and mildew growth
- Wood rot and structural damage
- Poor indoor air quality
- Increased humidity throughout the home
- Higher energy bills
- Increased radon entry into living spaces
In fact, up to 50% of the air inside your home can originate from the crawlspace. If that air is damp or contaminated, it affects the entire house.
Crawlspace encapsulation addresses these issues at the source.
What Is Crawlspace Encapsulation?
Crawlspace encapsulation is a comprehensive process that seals the crawlspace from ground moisture and outside air. Instead of allowing uncontrolled airflow and humidity, the space is transformed into a clean, dry, and conditioned area.
Encapsulation goes beyond laying down plastic sheeting. It is a system-based approach that integrates moisture control, air sealing, insulation, and drainage where needed.
Benefits of Crawlspace Encapsulation
Improved Indoor Air Quality
By sealing off moisture and soil gases, encapsulation helps reduce airborne contaminants that can circulate into your home.
Moisture & Humidity Control
Encapsulation prevents ground moisture from evaporating into the crawlspace, reducing condensation, mold risk, and musty odors.
Increased Energy Efficiency
Sealing and insulating the crawlspace reduces heat loss in winter and heat gain in summer, helping your HVAC system operate more efficiently.
Enhanced Comfort
Many homeowners notice fewer cold floors, more consistent indoor temperatures, and improved overall comfort.
Structural Protection
Reducing moisture helps protect floor joists, subflooring, and support structures from rot and long-term damage.
Supports Radon Mitigation
Encapsulation can significantly reduce radon entry and improve the performance of radon mitigation systems when installed together.
Our Crawlspace Encapsulation Services
At Radon Mitigation Corporation, we design each crawlspace encapsulation system based on your home’s unique conditions. No two crawlspaces are exactly alike, which is why a customized approach delivers the best results.
Our Services Include:
Vapor Barrier Installation
We install durable, reinforced vapor barriers that fully cover crawlspace floors and extend up foundation walls to block ground moisture and soil gases.
Sealing Foundation Openings
All vents, seams, penetrations, and gaps are sealed to prevent outside air, pests, and moisture intrusion.
Crawlspace Insulation
Insulation is installed or upgraded where needed to improve thermal performance and energy efficiency.
Sump Pump Installation
If groundwater or drainage issues are present, we install sump pump systems to manage water effectively.
Dehumidifier Installation
High-performance dehumidifiers help maintain ideal humidity levels and prevent moisture-related problems long term.
Spray Foam Insulation
In certain areas, spray foam is used to seal rim joists and hard-to-reach gaps for superior air sealing.
Each component works together to create a sealed, controlled crawlspace environment that protects your home from the ground up.
Crawlspace Encapsulation & Radon Reduction
Crawlspaces are a common entry point for radon gas. Encapsulation can play a critical role in radon mitigation by limiting the pathways through which radon enters the home.
In many cases, crawlspace encapsulation is combined with an active radon mitigation system for optimal results. Our team evaluates radon levels, foundation type, and airflow patterns to determine the best integrated solution.
Our Process
We follow a proven, transparent process to ensure every crawlspace encapsulation project delivers lasting results:
- Inspection & Assessment
We evaluate moisture levels, structural conditions, drainage issues, and air quality concerns. - Customized System Design
Each encapsulation plan is tailored to the home’s crawlspace layout and environmental needs. - Professional Installation
Our trained technicians install all components using industry-approved methods and high-quality materials. - Performance Verification
We ensure proper sealing, airflow control, and moisture management before project completion. - Long-Term Support
We remain available for maintenance, upgrades, and questions after installation.
Why Choose Radon Mitigation Corporation?
- Specialized focus on crawlspace and radon solutions
- Proven industry standards and best practices
- High-quality materials built for long-term performance
- Customized solutions for each home
- Clear communication and honest recommendations
- Trusted by homeowners across Illinois and surrounding communities
Our mission is to deliver effective solutions that improve indoor air quality and protect your home for years to come.
Frequently Asked Questions (FAQs)
How long does crawlspace encapsulation take?
Most crawlspace encapsulation projects are completed within 2–4 days, depending on size and conditions.
Will encapsulation eliminate musty odors?
Yes. By controlling moisture and sealing air leaks, encapsulation often eliminates musty crawlspace odors.
Do I still need crawlspace vents after encapsulation?
No. Crawlspace vents are sealed as part of the encapsulation process to prevent moisture and outdoor air intrusion.
Is crawlspace encapsulation worth the investment?
Encapsulation improves air quality, energy efficiency, comfort, and helps protect your home’s structure—making it a valuable long-term investment.
Can crawlspace encapsulation help with radon?
Yes. Encapsulation can significantly reduce radon entry and improve radon mitigation system performance.
Do you offer inspections before encapsulation?
Yes. We provide professional assessments to determine whether crawlspace encapsulation is the right solution for your home.
