Crawl Space Vent Covers and Flood Vents in the Southeast
Open crawl space vents are often a source of moisture, pests, and outside air, and we correct it by sealing them with airtight vent covers and/or installing code-compliant flood vents.
Financing Available
Seal Out Moisture. Stay Compliant in Flood Zones.
What Are Crawl Space Vent Covers & Flood Vents?
When to Use Vent Covers or Flood Vents
Encapsulating Your Crawl Space
Encapsulating Your Crawl Space
If you are planning to encapsulate your crawl space, the vents must be sealed. Open vents allow outside air to move freely into the space, which works against moisture control. In humid climates, that air brings in dampness that can lead to mold, wood rot, and insulation damage. Sealing the vents helps create a controlled environment that supports the CleanSpace® system. Without sealed vents, encapsulation cannot perform the way it should.
Moisture or Pests Entering Crawl Space
Moisture or Pests Entering Crawl Space
If you can see daylight through open vents, so can humid air and pests. Moisture entering through these openings can make the crawl space damp and musty. Rodents, insects, and other pests are also drawn to these easy access points. Over time, this can lead to damaged wood and contaminated insulation. Sealing the vents blocks these outside elements and protects the space below your home.
Wet or Sagging Insulation
Wet or Sagging Insulation
When insulation near the vents looks damp, droopy, or stained, outside air is likely the cause. Humid summer air and cold winter air both create moisture problems when they meet crawl space surfaces. Wet insulation loses its effectiveness and can contribute to higher energy bills. It can also create conditions for mold growth. Sealing the vents helps stabilize the environment and protects your insulation.
Living in a Flood Zone
Living in a Flood Zone
Homes in flood-prone areas often require engineered flood vents. Standard vent covers will not meet FEMA or local building code requirements in these zones. Flood vents are designed to open automatically during high water events to relieve pressure against the foundation walls. This reduces the risk of structural damage during a flood. Installing the correct flood vents helps protect your home and keeps you compliant with regulations.
Damaged or Missing Covers
Damaged or Missing Covers
Old vent screens and covers can rust, rot, or fall out over time. When that happens, your crawl space is exposed to moisture, pests, and outdoor temperatures. Even small gaps allow humid air to enter and affect the area beneath your home. Replacing damaged covers with airtight vent covers or engineered flood vents restores protection. It also improves the overall performance of your crawl space system.
ready to fix it? LET'S GET STARTED
The Best Solution For The Problem
Our Installation Process
Free Crawl Space Inspection
Vent Cover Selection
02
Installation
Sealing & Integration
Code Compliance Review
Why Choose Cantey for Vent Covers & Flood Vents?
Certified CleanSpace® installer—crawl space specialists
As a certified CleanSpace® dealer, Cantey installs proven crawl space systems designed to control moisture, improve air quality, and protect your home long term.
Exclusive vent sealing and flood vent options
We offer airtight vent covers and engineered flood vents, providing the right solution whether you need moisture control or code-compliant flood protection.
Experience working with FEMA, NFIP, and local codes
Our team understands FEMA guidelines, NFIP requirements, and local building codes to ensure flood vent installations meet proper standards and documentation requirements.
Integrated approach to crawl space health and safety
Vent covers are installed as part of a complete crawl space system, working with encapsulation, drainage, and moisture control for lasting performance.
Financing options available
We offer flexible financing options so you can address crawl space moisture or flood protection needs without delaying necessary repairs.
Trusted across SC, NC, and GA for moisture control
Homeowners across South Carolina, North Carolina, and Georgia trust Cantey for reliable crawl space moisture control and foundation protection solutions.
Benefits of Our Crawl Space Vent Systems
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 seal crawl space vents at all?
Do I need flood vents if I live in a flood zone?
Can you install both sealed covers and flood vents?
Are flood vents automatic?
Will this affect my crawl space encapsulation?
frequently asked questions about crawl space vents
Seal It Tight.
Flood-Proof It Right.
Whether you’re sealing out moisture or meeting floodplain regulations, Cantey Foundation Specialists provides vent solutions that do more than just cover holes—we protect your home from moisture, pests, and rising water. Let’s seal the bad stuff out—permanently.
