Block Wall Treatment For Crawl Spaces in the Southeast
If your crawl space walls are built with concrete blocks, moisture moves up through the open cavities and into the space anyway. Covering the walls is only half the battle.
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Seal Block Walls as Part of a Complete Crawl Space Encapsulation System
Why Seal Crawl Space Block Walls?
Crawl space block walls are porous, allowing moisture, outside air, and pests to enter. A vapor barrier on the ground alone does not stop moisture from moving through masonry walls. Sealing the block walls creates a continuous barrier as part of the encapsulation system. This helps control humidity, protect structural components from moisture damage, and improve overall crawl space conditions.
Signs to Look OUt For!
Musty Smells in the Home
Musty Smells in the Home
If you notice a persistent musty odor, especially near floors, it often starts in the crawl space. Moisture moves through porous block walls and into the air inside your home. That damp environment can affect air quality and comfort. The smell is usually a sign that humidity is not controlled and the crawl space is not properly sealed.
Damp or Wet Crawl Space Walls
Damp or Wet Crawl Space Walls
Block walls that feel damp or show darkened areas are allowing moisture to pass through. Masonry is porous, so water vapor can move directly into the crawl space. Over time, this raises humidity levels and creates the conditions for mold and wood damage. Sealing the walls helps stop that moisture at the source.
Visible Mold or Mildew
Visible Mold or Mildew
Mold growth on wood framing or wall surfaces is a clear sign of excess moisture. Crawl spaces with unsealed block walls allow humidity to build up. Mold not only damages materials but can also impact the air circulating through your home. Addressing the moisture problem is critical before conditions worsen.
High Indoor Humidity
High Indoor Humidity
If your home feels humid even when the air conditioning is running, the crawl space may be contributing. Moist air can enter through block walls and vents, then rise into the living space. This forces your HVAC system to work harder. Sealing the walls supports a controlled, drier environment below your home.
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OUR BLOCK WALL SEALING PROCESS
Inspection and Assessment
Cleaning and Preparation
Structural Repairs (if needed)
Drainage System Installation (if needed)
Vapor Barrier Installation
Sealing Vents and Openings
Dehumidifier Installation (if needed)
Final Inspection
Why Choose Cantey to Seal Your Crawl Space Block Walls?
Comprehensive CleanSpace System
Seal block walls as part of a full encapsulation system designed to control moisture, air movement, and pests throughout the entire crawl space.
Trained Crawl Space Specialists
Our team is trained in crawl space repair and encapsulation systems, ensuring proper installation and attention to structural and moisture concerns.
Reinforced Vapor Barrier Materials
We install thick, durable polyethylene vapor barriers that extend across the floor and up the block walls for long term moisture protection.
Moisture Control Solutions
If needed, we incorporate drainage systems and dehumidifiers to support sealed block walls and maintain consistent humidity levels year round.
Free, Detailed Inspections
We provide no obligation inspections and written estimates so homeowners understand crawl space conditions and recommended solutions before any work begins.
Proven Industry Recognition
Offering no-obligation consultations and detailed estimates with clear plans.
Benefits of Our Seal Block Walls
Our Customers Say it Best
Ask about our financing options
Cantey Foundation Specialists offers flexible, easy to understand financing options for homeowners. During our in-house visit, your specialist will help you find the financing options that work for YOU!
Fixed
12.99% for 120mos
6 Mos
No Payments
12 Mos
With Min Payments
Why do I need to seal my crawl space walls if I have a vapor barrier on the ground?
What is the difference between simply sealing my crawl space and full encapsulation?
Will this service help with mold in my crawl space?
Is this a DIY project, or should I hire a professional?
frequently asked questions about crawl space block walls
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