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Keep moisture, mold, and pests out of your crawl space for good. Thompson Brothers delivers reliable encapsulation solutions backed by 60 years of experience protecting homes across the Upstate.
If you live in Spartanburg, Greenville, or anywhere across the Upstate, your crawl space is constantly battling moisture. Our region's red clay soil holds water longer than most soil types, and our long, humid summers create a cycle of condensation that quietly damages your home from below. Left unchecked, that moisture can lead to mold growth, wood rot, sagging floors, musty odors, and an open invitation for termites and other pests.
Crawl space encapsulation is the most effective long-term solution to these problems. Rather than treating symptoms one at a time, encapsulation seals the entire area beneath your home with a heavy-duty vapor barrier, creating a clean, dry, controlled environment that protects your home's structural integrity and your family's health.
Crawl space encapsulation involves completely sealing your crawl space from outside air and ground moisture. The process includes installing a thick, commercial-grade vapor barrier across the crawl space floor and up the foundation walls, sealing all vents and openings, and adding dehumidification to maintain humidity levels below 60%. The result is a space that no longer acts as a source of moisture, mold, or pest entry into your home.
This is different from simply laying a thin plastic sheet on the ground. A proper crawl space vapor barrier installation in Spartanburg needs to account for our specific soil conditions, seasonal humidity swings, and the construction styles common in Upstate homes. That's where experience matters, and it's why homeowners searching for crawl space encapsulation consistently choose Thompson Brothers.
Once your crawl space is encapsulated, the changes are hard to miss. Musty smells disappear. Your HVAC system doesn't have to work as hard, which often lowers energy bills. And because the sealed environment removes the moisture that attracts termites, carpenter ants, and other wood-destroying organisms, you're adding a layer of pest prevention that works around the clock.
Homeowners also see improvements in indoor air quality. Research shows that up to 50% of the air you breathe on your first floor comes up from the crawl space. When that space is damp and full of mold spores, those contaminants circulate through your living areas. Encapsulation puts a stop to that cycle.
Thompson Brothers has been protecting homes and businesses across the Upstate for over 60 years, including recent major encapsulation projects like Wofford College's Senior Village.
That kind of real-world experience is something you won't find with every contractor. When our technicians arrive at your home, they bring the knowledge gained from hundreds of residential and commercial encapsulation projects. We take pride in doing things the right way, the first time, and our experienced technicians pay great attention to detail and go the extra mile to offer the right service for your needs.
Whether you need a full encapsulation, a waterproofing solution, or a combination of services including basement waterproofing or foundation wall waterproofing, we tailor every project to your home's specific conditions rather than applying a one-size-fits-all approach.
Not sure if encapsulation is right for your home? Here are some common warning signs that your crawl space is causing problems:
If any of these sound familiar, a free crawl space inspection from Thompson Brothers can pinpoint the source and help you understand your options. Many homeowners are surprised to learn how much of their home comfort and air quality is tied directly to what's happening beneath their feet. A termite inspection is also a smart addition, since moisture-damaged wood is a magnet for wood-destroying insects.

Schedule your free crawl space inspection today. Our team will assess your crawl space, explain what we find, and recommend the right solution for your home. No pressure, no scare tactics, just honest answers from a team that's been doing this for over 60 years.
The cost depends on the size of your crawl space, the condition it's currently in, and whether additional work like mold remediation or drainage is needed. Thompson Brothers provides free inspections and detailed estimates so you know exactly what to expect before any work begins. We believe in transparent pricing with no hidden fees.
Most residential crawl space encapsulation projects take between one and three days. Larger homes or crawl spaces that need significant prep work (such as water removal or mold treatment) may take a bit longer. We'll give you a clear timeline during your initial consultation.
A vapor barrier is a single component of encapsulation. It's the heavy-duty liner installed on the floor and walls. Full encapsulation goes further by sealing all vents and openings, addressing drainage issues, and installing a dehumidifier to actively control humidity. Think of the vapor barrier as the foundation of the system, and encapsulation as the complete solution.
Yes. When your crawl space is sealed and humidity-controlled, your HVAC system doesn't have to fight against the damp air rising from below. Many homeowners notice a measurable drop in heating and cooling costs after encapsulation, especially during our hot, humid summers.
Encapsulation removes the moisture that attracts termites, carpenter ants, and many other pests. While it's not a substitute for a dedicated pest control program, it eliminates one of the biggest factors that draws wood-destroying organisms to your home. We often recommend pairing encapsulation with regular termite inspections for complete protection.
Absolutely. In fact, existing mold is one of the most common reasons homeowners call us. Our team treats and removes mold as part of the preparation process before installing the vapor barrier and sealing the space. Encapsulation then prevents the conditions that allowed mold to grow in the first place.
Yes. We offer complimentary crawl space inspections throughout Spartanburg, Greenville, and the surrounding Upstate area. One of our experienced technicians will evaluate your crawl space, document any issues, and walk you through our recommendations with no obligation.
Look for a company with proven local experience, not just a national franchise. Thompson Brothers has been serving the Spartanburg and Greenville areas for over 60 years, and our team has completed encapsulation projects ranging from single-family homes to large multi-building commercial properties. Ask about our process, our materials, and how we handle the full scope of work in-house.
Thompson Brothers Exterminating and Waterproofing has been serving families and businesses in North Carolina and South Carolina since 1957, and we look forward to serving you too. We provide free estimates with no obligation.