Wet Crawl Space Repair
A wet crawl space is often a sign of ineffective drainage or groundwater intrusion, and we correct it by stopping the water and sealing your crawl space to keep it dry.
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Crawl Space Moisture & Structural Services
what Causes Wet Crawl Spaces?
Homes develop wet crawl spaces when moisture management fails, often starting with poor exterior drainage or clogged gutters that guide water toward the foundation rather than away from it. High groundwater or heavy storms can force water up through the soil, while internal factors like plumbing leaks or humid air entering the space contribute to saturation. Without a sealed moisture barrier to block rising vapor, these elements collectively trap water under the home, creating a perpetually damp environment.
Signs To Look Out For!
Standing Water or Damp Soil
Standing Water or Damp Soil
Take a look after a heavy rain. If you see puddles that refuse to dry out, or if the soil feels like soft, wet clay, you have a drainage issue. Water is either seeping through the foundation walls or rising up from the water table, and without a way to exit, it sits there evaporating into your home’s structure.
Musty or earthy odors in living spaces
Musty or earthy odors in living spaces
If you notice a persistent damp, earthy, or dirty sock smell in your living area, especially after it rains, that air is coming from your crawl space. Because hot air rises (the “Stack Effect”), a wet crawl space forces mold spores and smelly humidity up through your floors and into the air you breathe.
Sagging or cold floors
Sagging or cold floors
Moisture is the enemy of wood. Over time, high humidity softens the subfloor and joists, causing soft spots or a “trampoline” effect when you walk. Furthermore, damp air is harder to heat, so if your floors feel cold even when the thermostat is set to 70°, the crawl space is likely compromising your insulation.
Mold, mildew, or wood rot
Mold, mildew, or wood rot
If you see white powdery patches, black spots, or green fuzz, you have active mold growth. If the wood looks splintered or feels soft to the touch (dry rot), the moisture has already begun to compromise the structural integrity of the house.
Insulation falling from floor cavities
Insulation falling from floor cavities
Insulation works like a sponge, it absorbs moisture from damp air, becomes heavy, and eventually falls out of the floor cavities onto the ground. You may also notice rust flaking off metal support jacks or HVAC equipment, which is a clear sign that the air is too corrosive and wet.
High humidity readings
High humidity readings
When the relative humidity in a crawl space stays above 70%, it creates a tropical environment under your house. You might see condensation dripping off your HVAC ducts or water pipes (sweating). This excess moisture eventually migrates upstairs, making your home feel sticky and forcing your AC to work harder.
Pest activity (attracted to moisture)
Pest activity (attracted to moisture)
Termites, cockroaches, wood-boring beetles, and rodents are all attracted to moisture and soft, rotting wood. If you are constantly battling pests in your home, they are likely nesting in the wet environment under your floors. Solving the moisture issue is often the only way to permanently stop the infestation.
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The Best Solution For The Problem
Cantey Foundation Specialists uses industry-proven materials and systems to create a dry, controlled crawl space environment.
CleanSpace® Crawl Space Vapor Barrier
The CleanSpace® Crawl Space Vapor Barrier is the heart and soul of the CleanSpace® system.
This durable, bright white crawl space liner installs on the walls and floors, preventing water vapor and humidity from passing through. By keeping your crawl space dry, you protect your structure and insulation from mold and rot.
With a 25-year warranty against rips and tears, this durable 20-mil poly-reinforced crawl space liner converts your crawl space into a usable storage area. And with its mold-resistant additive “UltraFresh”, CleanSpace® will never support mildew or mold growth on its surface.
Crawl Space Drainage Matting & Systems
Crawl space liners rest directly on the crawl space floor. If your crawl space is flooding, water can be trapped underneath, never making it to your perimeter drain.
The raised dimples on our CleanSpace® Drainage Matting gives the water flooding into your crawl space a channel underneath your crawl space liner. This directs the water flooding your crawl space to your perimeter crawl space drain and sump pump system.
To install drainage matting in your crawl space, trust the professionals at Cantey Foundation Specialists to get the job done right.
Crawl Space Sump Pump Systems
The SmartSump™ Crawl Space Sump Pump is designed to work seamlessly with your CleanSpace® liner system. It sits in the lowest spot of your crawl space to collect and remove water automatically.
This system features a heavy duty cast iron pump and a unique airtight lid. These components ensure water is pumped out of your home without letting moisture evaporate back into the air.
To install a sump pump system in your crawl space, trust the professionals at Cantey Foundation Specialists to get the job done right.
Energy-Efficient Dehumidifiers
The SaniDry dehumidifier offers giant performance in a small package. It’s the world’s most efficient, high-performance dehumidifier, without a bulky heat exchange core. The Sedona easily fits in small crawl spaces, yet has a powerful blower to effectively dry large crawl spaces. Mold and mildew are common in crawl spaces, but the Sedona keeps the relative humidity below 55%, so mold won’t stand a chance. As a high-efficiency dehumidifier, the Sedona removes more moisture (100 pints per day) for less electricity cost than conventional models.
The SaniDry Sedona dehumidifier drains automatically and has a humidity sensor that monitors the air, so once it’s installed, there’s nothing else to do. Your crawl space will be drier and healthier – and so will the rest of your home too!
Crawl Space Insulation Solutions
TerraBlock™ insulation is a durable and pliable foam designed to insulate rough or uneven crawl space floors. It features a puncture resistant moisture barrier that protects your liner while creating a cushioned layer to prevent cold from rising through the ground.
SilverGlo™ wall panels use graphite infused foam and a radiant barrier to reflect heat back into your crawl space. Unlike fiberglass that absorbs moisture and falls, these rigid panels stay in place to maximize energy efficiency and keep your floors warm.
Replacing failing fiberglass with these water resistant materials ensures your insulation performs even in damp conditions. This upgrade permanently improves home comfort and reduces energy costs.
Our Wet Crawl Space Repair Process
Inspection & Diagnosis
A trained technician performs a comprehensive evaluation to identify the root cause of moisture, whether it is groundwater intrusion, plumbing leaks, or humidity. This includes measuring wood moisture content and relative humidity levels to create a custom repair plan that addresses the specific needs of your home.
01
Prep & Cleanup
The installation crew clears the area of organic debris, sharp rocks, and old, wet insulation that acts as a sponge for moisture. This stage also involves grading the soil where necessary to ensure water flows toward the drainage system rather than pooling against the foundation walls.
02
Install Drainage & Sump Pump
We install a perimeter drainage system or drainage matting directly on the floor to intercept leaking water before it spreads. A sump pump basin is installed at the lowest point to actively collect this water and pump it out of the home and away from the foundation.
03
Lay Vapor Barrier
A thick, heavy-duty liner is fitted across the entire dirt floor and ran up the foundation walls. Every seam is double-taped and mechanically fastened to create a continuous, airtight seal that completely isolates the home from the damp earth below.
04
Seal Vents & Openings
Foundation vents, rim joists, and penetrations for pipes or wires are sealed airtight using foam blocks or covers. This stops humid outside air from entering the space and prevents the “stack effect” from pulling moldy air up into your living area.
05
Dehumidifier & Insulation Installation
An energy-efficient dehumidifier is installed to filter the air and maintain humidity below 55%, ensuring mold cannot grow. Rigid foam insulation is also applied to the walls or floors to restore energy efficiency and keep the floors above warm.
06
Structural Support Repairs (if needed)
If moisture has compromised the wood framing, galvanized steel jack posts are installed to support the load. These adjustable columns stabilize the floor joists and can potentially lift sagging floors back to their original, level position.
07
Final Testing & Customer Review
The team tests the sump pump and dehumidifier to ensure they are operating correctly. A final walkthrough confirms the crawl space is clean, dry, and fully sealed before the crew reviews the warranty and maintenance instructions with you.
08
Why Choose Cantey to Repair Your Wet Crawl Space?
Accredited Service
We are proud to be BBB Accredited with an A+ rating, reflecting our unwavering trust and deep commitment to maintaining the highest industry standards.
End-to-End Solutions
We offer a full range of proven crawl space solutions including encapsulation, drainage, and moisture control services with quality craftsmanship.
Highly Trained Professionals
Our installation teams are extensively trained and certified to perform precise and effective crawl space repairs.
Complete moisture management
From diagnosis to installation of Cleanspace barrier, sump pumps, dehumidifiers, and encapsulation systems.
Reliable Warranties
You can rest easy crawl space systems are protected by a comprehensive 25-year warranty.
Free, No-Obligation Inspections
We assess your specific issues and provide a complimentary project estimate so you know exactly what to expect without any upfront cost.
Benefits of Our Wet Crawl Space Solutions
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 is my crawl space wet even if it doesn’t rain?
Groundwater, humidity, and poor vapor barriers can all allow moisture to persist even in dry conditions. A sealed encapsulation system is designed to block this ongoing moisture issue.
How long does crawl space encapsulation take?
Most encapsulation projects are completed in 1–3 days, depending on size and complexity.
Will encapsulation help my indoor air quality?
Yes, proper encapsulation reduces mold spores and humidity entering living spaces, improving overall air quality.
Do I still need a dehumidifier if I install a vapor barrier?
Often yes, the barrier prevents ground moisture entry, but a dehumidifier actively controls humidity in the air for full crawl space health.
Can I DIY these repairs?
DIY options exist, but professional encapsulation and moisture management typically provide longer-lasting results, especially in complex or high-water tables.
frequently asked questions about wet crawl spaces
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