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What Is Crawl Space Repair?

A crawl space is a core piece of your home, often providing stability to your entire home. If your crawl space is experiencing any issues, prompt repairs can address problems like moisture intrusion, structural damage, and poor air quality.

If you’re unfamiliar with crawl space repair, Jaco is here to help answer questions and provide solutions.

Causes of Crawl Space Moisture

Regardless of size, keeping your crawl space dry is critical for your home. Crawl spaces are located directly above the ground, which means they are more prone to moisture seepage from the dirt floor, especially during periods of heavy rainfall or high groundwater levels.

Additionally, crawl space moisture problems can develop due to:

Poor Ventilation

Inadequate crawl space vents can lead to stagnant air, which increases humidity levels and promotes moisture buildup. Without proper airflow, moisture becomes trapped within the area.



Temperature differentials between the crawl space and the rest of the home can lead to condensation forming on surfaces, such as ductwork or pipes, within the crawl space.


Leaks and Plumbing Issues

Crawl spaces often house plumbing fixtures and pipes, which can develop leaks over time. Even minor leaks can introduce significant amounts of moisture into the crawl space.


Pest Activity

Pest activity can further contribute to moisture issues by damaging insulation and creating additional entry points for water.

What Moisture Problems Mean for Your Home

Excess moisture can lead to a domino effect of issues, including:


  • Crawl Space Mold and Mildew Growth: Damp environments are breeding grounds for mold, posing health risks and causing unpleasant odors.
  • Foundation Issues: Moisture can weaken foundation materials, leading to cracks, uneven floors, and structural damage.
  • Wood Rot: Moisture problems can lead to rotted floor joists and support beams, compromising the structural integrity of your home.
  • Pest Infestation: Pests such as termites and rodents are attracted to damp environments, making a wet crawl space particularly susceptible to infestations.
  • Reduced Energy Efficiency: Moist crawl spaces can make it harder to regulate indoor temperatures, leading to higher energy bills.


Addressing moisture problems through crawl space repairs improves the health, safety, and efficiency of your home.

Signs You Need Crawl Space Repair

Ignoring crawl space problems can lead to expensive repairs down the line. Here are some warning signs to watch out for:

  • Visible Mold Growth: Mold appears as black, green, or white patches on walls, insulation, or floor joists.
  • Musty Odors: A persistent damp or musty smell emanating from your crawl space indicates moisture problems.
  • Increased Humidity Levels: Invest in a hygrometer to measure humidity levels in your crawl space. Ideally, they should be below 60%.
  • Uneven Floors: Sagging, bouncy, or uneven floors could be signs of structural issues caused by moisture damage.
  • Higher Utility Bills: A sudden increase in your energy bills might indicate inefficient heating and cooling due to a poorly insulated crawl space.
  • Presence of Pests: Rodent droppings, insect activity, or damaged insulation all point toward a pest infestation in your crawl space.

Effective Crawl Space Repair in Indianapolis, IN

Most crawl spaces lack proper waterproofing measures, such as vapor barriers or waterproof sealants, leaving them vulnerable to moisture intrusion from the surrounding soil or groundwater. At Jaco, we offer a comprehensive approach to crawl space repair, addressing the root cause of problems.


Structural Repair

Structural repairs may be necessary to address issues such as sagging floors, rotting wood, or foundation cracks. For minor cracks, crack sealants prevent further water infiltration and reinforce the foundation. 

In cases of severe cracking or bowing walls, our team may recommend solutions like installing support piers or wall anchors to stabilize the foundation and restore structural integrity. Ultimately, the specific foundation repair approach will depend on the extent and nature of the damage identified in your crawl space.


Crawl Space Encapsulation

Crawl space encapsulation essentially creates a conditioned environment beneath your home. This involves installing a high-quality vapor barrier on the floor and walls of the crawl space, effectively sealing it from the earth. This creates a dry and isolated space, preventing moisture from entering and keeping the crawl space at a consistent temperature.


Moisture Control

Even with encapsulation, moisture can still enter the space through various means such as plumbing leaks, condensation, and humidity from the surrounding soil. A dehumidifier is installed to extract moisture from the air, helping to create a drier and healthier environment within the crawl space. A sump pump or perimeter drainage system is added to collect and remove excess water that accumulates in the crawl space, preventing potential water damage and mold growth.

Take Action for a Healthy Crawl Space

If you suspect crawl space issues in your home, contact Jaco. Our experienced professionals will conduct a thorough inspection to diagnose problems and recommend the most effective solutions. With our expertise and proven methods, crawl space moisture issues are eliminated.