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Open Crawl Space Vents

Once celebrated for their supposed ventilation benefits, open crawl space vents can now be replaced with safer, more effective solutions. 

These frequently utilized openings on homes built with crawl spaces have been found to cause the very problems they were designed to alleviate: dampness and poor ventilation. Left unaddressed, open crawl space vents can lead to moisture issues, mold growth, pests, and more in your home. 

With years of experience and a commitment to providing lasting solutions, Ohio Basement Authority addresses these issues head-on. Our dedicated team specializes in transforming your crawl space into a safe, dry, and energy-efficient part of your home with proprietary crawl space encapsulation products, ensuring comfort and stability for years to come. 

This page guides you through the history of crawl space vents, the problems they cause, and how professionally installed and customized repairs benefit your home. 

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What Are Open Crawl Space Vents? 

Open crawl space vents, initially designed to adhere to building codes and prevent moisture issues, are a practice rooted in outdated building standards.  

However, these vents often create more problems than they solve. Open crawl space vents can lead to: 

These issues can seriously threaten your home’s structural integrity and your health. Contact crawl space experts like Ohio Basement Authority immediately if you notice these signs or see open vents on your home’s exterior. 

Why Your Home Has Open Crawl Space Vents 

Until the mid-20th century, it was widely accepted as best practice to install vents in crawl spaces, believing that this would enhance air circulation, mitigating dampness and excessive moisture

However, this belief has since been debunked. Today, we understand crawl space vents are more likely to exacerbate these issues than resolve them. 

Research conducted in the 1990s revealed these vents permit the intrusion of dampness and moisture and compromise a home’s energy efficiency, making it challenging to maintain a consistent indoor temperature. 

Consequently, the use of crawl space vents has significantly declined over the past few decades. Building codes continue to evolve and accommodate vent sealing and crawl space encapsulation. 

Nowadays, covering these vents is a standard procedure for crawl space improvements. Sealing them off is acknowledged as a more beneficial approach, promoting a healthier environment within the crawl space, provided that artificial air circulation is implemented. 

Can You Fix Open Crawl Space Vents? 

Yes, open crawl space vents can be addressed effectively. However, a simple cover-up won’t suffice; a whole-home solution is necessary to achieve lasting results. 

It’s crucial to approach this issue comprehensively, ensuring all aspects of your crawl space are considered. Sealing crawl space vents as part of an overall encapsulation system can transform your damp, unhealthy crawl space into a clean, dry, conditioned space. 

Our experts at Ohio Basement Authority have 15 years of experience solving crawl space moisture and delivering permanent solutions. We know how to diagnose the root causes in your home and implement comprehensive repairs to match your needs. 

How to Fix Open Crawl Space Vents 

The easiest way to address the problem of open crawl space vents is through crawl space encapsulation. However, it takes more than blocking off the vent or concealing it with a cover. 

Ohio Basement Authority’s step-by-step crawl space encapsulation process includes: 

By choosing Ohio Basement Authority, you opt for a tailored solution backed by our proprietary products, designed to outperform and outlast the alternatives. 

Why Address Open Crawl Space Vents Now 

It’s vital to fix open crawl space vents as soon as possible for many reasons, including: 

  • Prevent Structural Damage: Promptly addressing the issue saves on potential costly repairs. 
  • Enhance Indoor Air Quality: A sealed and dry crawl space provides a healthier living environment. 
  • Improve Energy Efficiency: Proper insulation and sealing lead to noticeable savings on energy bills. 
  • Avoid Pest Infestations: A dry crawl space is far less appealing to pests. 
  • Enhance Property Value: Homes with resolved crawl space issues are more attractive to potential buyers. 

Ohio Basement Authority’s specialized solutions combine expertise with superior products for industry-leading results. 

Contact Ohio Basement Authority for Reliable Crawl Space Solutions 

If your home has open crawl space vents, don’t wait for more severe problems to develop. Ohio Basement Authority has the products, diagnostics, and expertise to fully encapsulate your crawl space. 

We will inspect your crawl space, identify the root causes of damage, and deliver lasting solutions customized to your home. Our proprietary products and whole-home approach set us apart from generic encapsulation kits. Contact us today to schedule a free crawl space inspection and no-obligation repair estimate.


While it’s possible to cover crawl space vents on your own, professional services ensure a comprehensive and long-lasting solution. Ohio Basement Authority’s process involves fully waterproofing and encapsulating the crawl space, not just sealing or covering the vents. Contact us to learn more and to schedule a free crawl space inspection. 

The duration depends on the condition of the crawl space and what solutions are used, but we can generally complete the project within a few days. Ohio Basement Authority’s crews work efficiently to minimize disruption. Learn more and receive a no-obligation estimate and an accurate project timeline during a free inspection

Costs vary based on the size of your crawl space, its condition, and the specific repairs. However, investing in professional solutions with Ohio Basement Authority ensures value for money and lasting results. We provide free inspections, no-obligation repair estimates, transparent pricing, and various financing options. Contact us to learn more. 

Ohio Basement Authority Service area

Our Locations

Akron Office

429 Portage Blvd
Kent, OH 44240

Cincinnati Office

1270 Hillsmith Dr.
Cincinnati, OH 45215

Cleveland Office

7950 Bavaria Rd.
Twinsburg, OH 44087

Columbus Office

2421 McGaw Rd.
Obetz, OH 43207

Dayton Office

70 Birch Alley, Suite 240
Beavercreek, OH, 45440

Dublin Office

5650 Blazer Memorial Pkwy, #124
Dublin, OH 43017