Total Crawl Space Makeover: Sealed, Insulated, and Protected

We recently helped a homeowner completely refresh their crawl space, turning it from a damp, messy area into a clean, dry, and usable space.

The floor used to be bare dirt, so we started by adding a drainage system and a reliable sump pump to keep water out even during power outages, thanks to a battery backup. We also added ventilation to improve air quality and help control moisture.

To seal everything up, we installed a heavy-duty liner across the entire floor and walls, making the space feel much cleaner and more secure. Underneath that, we added a layer that helps with comfort and protects against ground moisture—perfect if they ever want to use the space for storage. We gave the area a deep clean, removed the old vapor barrier, got rid of spider webs, and treated the concrete for any lingering smells. We even wiped down the heating ducts and sewer lines. To make sure the crawl space stays warm and energy efficient, we added solid insulation to the walls and sealed everything tightly. We also checked for any small gaps or cracks and sealed them up with mesh to help keep pests out.

Since access was tricky, we created a custom hatch through a closet to make getting in and out easier in the future.

Now the crawl space is dry, insulated, and so much healthier, giving the homeowner peace of mind and a better home environment.